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 e...
Floodplain Impacts. Determine whether the 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 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 shall fulfill the requirements of Executive Order 11988 and 23 CFR §650, Subpart A.
18.1 Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge. DocuSign Envelope ID: E1751104-B732-4D7A-B9EB-6E4CC5D37740
18.2 Briefly describe the streams in the study area, including evidence of stream migration, down cutting, or aggradations.
18.3 Identify the presence and nature (e.g., zone A, zone AE, zone AE with floodway) of any FEMA mapped floodplains. Include the panel number.
18.4 Indicate the existence of any significant development associated with the mapped area and identify the jurisdiction responsible for the floodplain.
18.5 Identify the locations where an alternative will encroach on the base (100-year) floodplain ("encroachments"), where an alternative will support incompatible floodplain development and the potential impacts of encroachments and floodplain development. This identification should be included in the text and on a map.
18.6 Include a list of all jurisdictions having control over floodplains for each alternative.
18.7 Where an encroachment or support of incompatible floodplain development results in impacts, the report shall provide more detailed information on the location, impacts and appropriate mitigation measures. In addition, if any alternative (l) 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 shall include an evaluation and discussion of practicable alternatives to the structure or to the significant encroachment. The report shall include exhibits which display the alternatives, the base floodplains and, where applicable, the regulatory floodplains.
18.8 For each alternative encroaching on a designated or regulatory floodplain, the report shall provide a preliminary indication of whether the encroachment would be consistent with or require a revision to the regulatory floodplain. If the pr...
Floodplain Impacts. Determine whether the 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 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 shall fulfill the requirements of Executive Order 11988 and 23 CFR §650, Subpart A. 18.1 Briefly describe the watershed characteristics of the study area in terms of land uses and changes in land use that may affect stream discharge.
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 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 shall fulfill the requirements of Executive Order 11988 and 23 CFR 650, Subpart A.
Floodplain Impacts. JCPRD agrees to exercise good faith efforts to obtain from the Federal Emergency Management Agency (FEMA) both a Conditional Letter of Map Revision (CLOMR) and a Letter Map of Revision (LOMR) regarding the potential impact to Olathe property from the construction of the Trail and Cedar Niles Park. In the event, FEMA issues a either a CLOMR or LOMR, then JCPRD agrees to comply with the requirements and conditions applicable to Olathe’s property in the CLOMR and/or LOMR. If FEMA refuses to issue a CLOMR or LOMR, the Parties agree to work in good faith to resolve any concerns Olathe has regarding floodplain impacts to Olathe property, including but not limited to future additional costs and permitting difficulties for Olathe for the Project due to the lack of a CLOMR or LOMR.
Floodplain Impacts. The ENGINEER shall determine whether the proposed project has the potential to affect floodplains. Studies for floodplain impacts shall follow the requirements of Executive Order 11988 and 23 C.F.R. 650, Subpart A. • Findings will be summarized in the Environmental Assessment.
Floodplain Impacts. The Engineer shall determine whether the Transportation Activity has the potential to affect floodplains, and document this evaluation in a Water Resources Technical Report.
