Common use of Floodplain Impacts Clause in Contracts

Floodplain Impacts. The Engineer shall determine whether the transportation activity has the potential to affect floodplains. Studies for floodplain impacts must fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA mapped floodplains, including the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might encroach on the base (100-year) floodplain (encroachments), where an alternative might support incompatible floodplain development, and the potential impacts of encroachments and floodplain development. This identification must be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, provide more detailed information on the location, impacts, and appropriate mitigation measures. In addition, if any alternative (1) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, provide a preliminary indication of whether the encroachment is consistent with or requires a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must discuss the consistency of the action with the regulatory floodplain. In addition, the report must document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must document compliance with the Executive Order 11988 requirements and must be supported by the following information: i. The reasons why the proposed action must be located in the floodplain. ii. The alternatives considered and why they were not practicable; and iii. A statement indicating whether the action conforms to applicable state or local floodplain protection standards

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) DocuSign Envelope ID: F9E4AA24-4672-4529-8EFA-00D1CA218520 The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required.. DocuSign Envelope ID: F9E4AA24-4672-4529-8EFA-00D1CA218520 i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: 0D2F7E90-5707-4244-B1F8-5FC3612CC484 (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: 0D2F7E90-5707-4244-B1F8-5FC3612CC484 cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: CB4D4692-3486-4327-9EA0-F7A661B6ACDF (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: CB4D4692-3486-4327-9EA0-F7A661B6ACDF cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. • Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. . • Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. . • Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. . DocuSign Envelope ID: 9EFC6FE2-229E-4628-90C6-20E86398200F • Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. . • Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. . • Include a list of all jurisdictions having control over floodplains for each alternative. g. . • Where an encroachment or support of incompatible floodplain development results in impacts, the report must provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. . • For each alternative encroaching on a designated or regulatory floodplain, the report must provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must discuss the consistency of the action with the regulatory floodplain. In addition, the report must document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. . • If the preferred alternative includes a floodplain encroachment having significant impacts, the report must include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must document compliance with the Executive Order 11988 requirements and must be supported by the following information: i. : o The reasons why the proposed action must be located in the floodplain. ii. ; o The alternatives considered and why they were not practicable; and iii. A statement indicating whether the action conforms to applicable state or local floodplain protection standards

Floodplain Impacts. The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a.  Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. .  Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. .  Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel DocuSign Envelope ID: 561C61B0-0796-4EF9-913A-E2D2252E0890 number. d. .  Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. .  Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. .  Include a list of all jurisdictions having control over floodplains for each alternative. g. .  Where an encroachment or support of incompatible floodplain development results in impacts, the report must provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. .  For each alternative encroaching on a designated or regulatory floodplain, the report must provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must discuss the consistency of the action with the regulatory floodplain. In addition, the report must document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. .  If the preferred alternative includes a floodplain encroachment having significant impacts, the report must include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must document compliance with the Executive Order 11988 requirements and must be supported by the following information: i. : o The reasons why the proposed action must be located in the floodplain. ii. ; o The alternatives considered and why they were not practicable; and iii. and o A statement indicating whether the action conforms to applicable state or local DocuSign Envelope ID: 561C61B0-0796-4EF9-913A-E2D2252E0890 floodplain protection standards. Coastal Zone and Barrier Impacts (if required) The Engineer shall determine if the proposed activity complies with Texas’ approved coastal management program and will be conducted in a manner consistent with the Texas Coastal Management Program and the Coastal Zone Management Act by avoiding and minimizing impacts to coastal natural resource areas. Stormwater Permits (Section 402 of the Clean Water Act) The Engineer shall:  Describe the need to use the TPDES General Permit, TX 150000. The text will describe how the project will comply with the terms of the TPDES, including the Stormwater Pollution Prevention Plan.  Describe the need for Municipal Separate Storm Sewer System (MS4) notification. List MS4 participating municipalities

Floodplain Impacts. The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. DocuSign Envelope ID: 67397975-F81B-4755-90E3-12120FAB096F  Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. .  Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. .  Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. number of FEMA Flood Insurance Rate Maps (FIRMs).  Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. .  Identify the locations where an alternative might will encroach on the base (100-100- year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. .  Include a list of all jurisdictions having control over floodplains for each alternative. g. .  Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. .  For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. .  If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. The reasons why the proposed action must be located in the floodplain. ii. The alternatives considered and why they were not practicable; and iii. A statement indicating whether the action conforms to applicable state or local floodplain protection standards

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Environmental Impacts of the Proposed Project section of the EA.) DocuSign Envelope ID: 45A56478-C163-42E7-AE73-4A77A86451FF The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In DocuSign Envelope ID: 45A56478-C163-42E7-AE73-4A77A86451FF addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative.. DocuSign Envelope ID: D78C9312-D95C-4FD3-B00A-7CFCC10A2DB4 g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: CA9F0A59-74CF-45EC-A0BA-DA5EDEFB2344 (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: CA9F0A59-74CF-45EC-A0BA-DA5EDEFB2344 cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: 531A9DDE-2967-4B7D-96AD-B570C85CF1EE (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: 531A9DDE-2967-4B7D-96AD-B570C85CF1EE cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) of the Scope Development Tool and Water Resources Technical Report.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. • Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. . • Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. . • Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. . • Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. . • Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. . • Include a list of all jurisdictions having control over floodplains for each alternative. g. . DocuSign Envelope ID: F4888AB1-5DA1-49AB-A751-51413985E885 • Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. . • For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. . • If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. : o The reasons why the proposed action must be located in the floodplain. ii. ; o The alternatives considered and why they were not practicable; and iii. A statement indicating whether the action conforms to applicable state or local floodplain protection standards

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Environmental Impacts of the Proposed Project section of the EA.) DocuSign Envelope ID: 4542C97A-A0BF-4F41-B2F5-F020508C38AA The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In DocuSign Envelope ID: 4542C97A-A0BF-4F41-B2F5-F020508C38AA addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within DocuSign Envelope ID: 5A2DC6EC-64DB-4A02-A984-B96FAAFF8279 PeopleSoft Contract No. 7490 Legacy Contract No. 12-7IDP5009 the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. • Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. . • Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. . • Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. . • Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. . • Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. . • Include a list of all jurisdictions having control over floodplains for each alternative. g. . • Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. . • For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. . • If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: 5A2DC6EC-64DB-4A02-A984-B96FAAFF8279 PeopleSoft Contract No. 7490 Legacy Contract No. 12-7IDP5009 cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. : o The reasons why the proposed action must be located in the floodplain. ii. ; o The alternatives considered and why they were not practicable; and iii. A statement indicating whether the action conforms to applicable state or local floodplain protection standards

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: 77A45C0A-6CA6-4436-AA61-FD6DAA5DDC8C (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: 77A45C0A-6CA6-4436-AA61-FD6DAA5DDC8C cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: 1065CE05-E678-4FDA-9A15-CD435C82F2FA (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: 1065CE05-E678-4FDA-9A15-CD435C82F2FA cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: D48DDB49-3B26-4601-BF7C-3027905768B1 (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: D48DDB49-3B26-4601-BF7C-3027905768B1 cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Environmental Impacts of the Proposed Project section of the EA.) DocuSign Envelope ID: 4154F7E6-47C6-48AD-BA70-902BFE5F00DC The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In DocuSign Envelope ID: 4154F7E6-47C6-48AD-BA70-902BFE5F00DC addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer ENGINEER shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must: a. • Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. . • Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. . • Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. . • Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. . • Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. . • Include a list of all jurisdictions having control over floodplains for each alternative. g. . • Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. . • For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state City and/or State agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. . • If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. : o The reasons why the proposed action must be located in the floodplain. ii. ; o The alternatives considered and why they were not practicable; and iii. o A statement City and/or Statement indicating whether the action conforms to applicable state City and/or State or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Affected Environment and Environmental Consequences section of the EA.) The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements DocuSign Envelope ID: AF0A5C71-20F3-481C-96D9-9B6E48645CA8 (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such DocuSign Envelope ID: AF0A5C71-20F3-481C-96D9-9B6E48645CA8 cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;

Floodplain Impacts. (This scope is for the corresponding section(s) as listed in the Environmental Impacts of the Proposed Project section of the EA.) DocuSign Envelope ID: 96ECF328-ADFC-48E2-AAEF-44272BE1E265 The Engineer shall determine whether the transportation activity Transportation Activity has the potential to affect floodplains. Document Trinity River Corridor Development Certificate Regulatory Zone requirements (Dallas and Fort Worth Districts), and International Boundary Water Commission (IBWC) requirements (Transportation Activity within the floodplain of the Rio Grande) if the project is within the area covered by these regulations. Studies for floodplain impacts must shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A. Documentation must:A. a. Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. b. Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations. c. Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA Federal Emergency Management Agency (FEMA) mapped floodplains, including . Include the panel number. d. Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain. e. Identify the locations where an alternative might will encroach on the base (100-year) floodplain ("encroachments"), where an alternative might will support incompatible floodplain development, development and the potential impacts of encroachments and floodplain development. This identification must should be included in the text and on a map. f. Include a list of all jurisdictions having control over floodplains for each alternative. g. Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts, impacts and appropriate mitigation measures. In addition, if any alternative (1l) results in a floodplain encroachment or supports incompatible floodplain development having significant impacts, or (2) requires a commitment to a particular structure size or type, the report must shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report must shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains. h. For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment is would be consistent with or requires require a revision to the regulatory floodplain. If the preferred alternative encroaches on a regulatory floodplain, the report must shall discuss the consistency of the action with the regulatory floodplain. In DocuSign Envelope ID: 96ECF328-ADFC-48E2-AAEF-44272BE1E265 addition, the report must shall document coordination with FEMA and local or state agencies with jurisdiction indicating that a revision is would be acceptable or that a revision is not required. i. If the preferred alternative includes a floodplain encroachment having significant impacts, the report must shall include a finding that it is the only practicable alternative as required by 23 CFR 650, Subpart A. The finding must shall refer to Executive Order 11988 and 23 CFR 650, Subpart A. In such cases the report must shall document compliance with the Executive Order 11988 requirements and must shall be supported by the following information: i. 1) The reasons why the proposed action must be located in the floodplain.; ii. 2) The alternatives considered and why they were not practicable; and iii. 3) A statement indicating whether the action conforms to applicable state or local floodplain protection standards;