TASKS TO BE COMPLETED a. Design Surveys The State will request design surveys on an as needed basis. The Surveyor shall perform tasks including, but not limited to the following:
i. Obtain or collect data to create cross-sections and digital terrain models.
ii. Locate existing utilities.
iii. Locate topographical features and existing improvements.
iv. Provide details of existing bridge structures.
v. Provide details of existing drainage features (e.g., culverts, manholes, etc.).
vi. Locate wetlands.
vii. Establish additional and verify existing control points. Horizontal and Vertical control ties must be made and tabulated, to other control points in the vicinity, which were established by other sources such as, the National Geodetic Survey (NGS), and the Federal Emergency Management Agency (FEMA), and any other local entities as directed by the State.
viii. Locate existing right-of-ways.
ix. Review right-of-way maps.
x. Locate boreholes.
xi. Perform hydrographic surveys. DocuSign Envelope ID: E7364B4B-1AEE-40DF-BDDE-5670501BD1AD
xii. Update existing control data and prepare survey control data sheets, as directed by the State for inclusion into a construction plan set. The Surveyors shall also prepare a Survey Control Index Sheet and a Horizontal and Vertical Control Sheet(s), signed, sealed and dated by the professional engineer in direct responsible charge of the surveying and the responsible RPLS for insertion into the plan set. The Survey Control Index Sheet shows an overall view of the project control and the relationship or primary monumentation and control used in the preparation of the project; whereas, the Horizontal and Vertical Control sheet(s) identifies the primary survey control and the survey control monumentation used in the preparation of the project. Both the Survey Control Index Sheet and the Horizontal and Vertical Control Sheet(s) must be used in conjunction with each other as a set. The State’s forms for these sheets can be downloaded from the State’s website. The following information shall be shown on the Survey Control Index Sheet: Overall view of the project and primary control monuments set for control of the project Identification of the control points Baseline or centerline Graphic (Bar) Scale North Arrow Placement of note “The survey control information has been accepted and incorporated into this PS&E” which shall be signed, sealed and dated by a Texas Professional Engineer employed by the State RPLS signature, seal, and date The...
TASKS TO BE COMPLETED a. Aerial Photography The Surveyor shall provide aerial photography for low altitude aerial mapping appropriate for detailed design.
i. Ground Control Accuracy Standards • The Surveyor shall provide horizontal ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable. • The Surveyor shall provide vertical ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable.
ii. Paneling Placement Specifications For purposes of this Contract, all standards and specifications shall be in accordance with established guidelines and recommended or approved by the State.
iii. Aerial Photography Standards and Specifications For purposes of this Contract, all standards and specifications shall be in accordance with established guidelines and recommended or approved by the State.
iv. LiDAR Technology The use of LiDAR Technology (mobile, terrestrial or aerial) will be acceptable when approved by the State and the accuracies of the specified tasks it will be used for are met or exceeded. The Surveyor shall provide: • Digital Orthophotos on CD or DVD. • A photo index of the scanned aerial film frames or digital image frames for each frame of photography in the project.
b. DGN, DTM and TIN Files The Surveyor shall prepare DGN, DTM and TIN files covering the specific work location, meeting standards and specifications as required. DocuSign Envelope ID: 5CB7751C-E6D0-4DE2-9AFC-6147ABA0BF50
I. Horizontal Ground Control Accuracy Standards The Surveyor shall provide horizontal ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable.
II. Vertical Ground Control Accuracy Standards The Surveyor shall provide vertical ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable.
III. Map Accuracy Standard Aerial mapping must meet or exceed the requirements for ASPRS Class 1 standard for 1” = 40’ scale mapping with a one foot contour i...
TASKS TO BE COMPLETED. Design Surveys The State will request design surveys on an as needed basis. The Engineer’s Surveyor shall perform tasks including, but are not limited to the following:
TASKS TO BE COMPLETED a. Design Surveys The State will request design surveys on an as needed basis. The Surveyor shall perform tasks including, but not limited to the following:
i. Obtain or collect data to create cross-sections and digital terrain models.
ii. Locate existing utilities.
iii. Locate topographical features and existing improvements.
iv. Provide details of existing bridge structures.
v. Provide details of existing drainage features (e.g., culverts, manholes, etc.).
vi. Locate wetlands.
vii. Establish additional and verify existing control points. Horizontal and Vertical control ties must be made and tabulated, to other control points in the vicinity, which were established by other sources such as, the National Geodetic Survey (NGS), and the Federal Emergency Management Agency (FEMA), and any other local entities as directed by the State. DocuSign Envelope ID: 0D466823-ACAE-4FA7-905E-4FFAE3FE9198 viii. Locate existing right-of-ways.
TASKS TO BE COMPLETED a. Aerial Photography The Surveyor shall provide aerial photography for low altitude aerial mapping appropriate for detailed design.
i. Ground Control Accuracy Standards • The Surveyor shall provide horizontal ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable. • The Surveyor shall provide vertical ground control that meets standards of accuracy required by the State and as described in the TxDOT Survey Manual, latest edition, or the TSPS Manual of Practice for Land Surveying in the State of Texas, as may be applicable.
ii. Paneling Placement Specifications For purposes of this Contract, all standards and specifications shall be in accordance with established guidelines and recommended or approved by the State.
iii. Aerial Photography Standards and Specifications For purposes of this Contract, all standards and specifications shall be in accordance with established guidelines and recommended or approved by the State.
iv. LiDAR Technology The use of LiDAR Technology (mobile, terrestrial or aerial) will be acceptable when approved by the State and the accuracies of the specified tasks it will be used for are met or exceeded.
TASKS TO BE COMPLETED. The State will request design surveys on an as needed basis. After the survey is complete and prior to design work commencing, the State will need to approve the topographic survey and the geometry of the existing centerline as per the as-builts and existing ROW maps. The Engineer’s Surveyor shall perform tasks including, but not limited to the following:
1. DESIGN SURVEYS
a. Obtain or collect data to create cross-sections and digital terrain models to supplement the aerial mapping and voids caused by tree cover.
b. Establish existing roadway centerline
c. Locate and tie existing visible utilities.
d. Locate and tie topographical features and existing improvements.
e. Locate and tie all existing ROW markers, cross drainage structures, roadway centerline, bridge structures, etc. from 1000 feet prior to the beginning of the project to 1000 feet outside/past the DocuSign Envelope ID: 6DA01770-719C-4EFF-A344-425189FAC6FB end of the project limits and submit data to the State for review. If no ROW markers of drainage/bridge structures exist within 1000 feet outside the limits of the project, the Engineer shall contact the State for guidance.
f. Provide details of existing drainage features, (e.g., culverts, manholes, etc.) including structure size and type, railing, erosion control measures, upstream and downstream flowlines.
g. Include digital photographs of each structure including upstream and downstream ends of the structure, and upstream and downstream images just off the existing ROW.
h. Locate wetlands up to 20 identified by the Environmental Task Leader
i. Establish additional and verify existing control points Horizontal and Vertical control ties must be made and tabulated, to other control points in the vicinity, which were established by other sources such as, the National Geodetic Survey (NGS), and the Federal Emergency Management Agency (FEMA), and any other local entities as directed by the State.
j. Locate and tie existing right-of-ways.
k. Review right-of-way maps.
l. Coordinate and locate up to 70 bore holes with the Engineer
m. Update existing control data and prepare survey control data sheets (11” X 17”), as directed by the State for inclusion into a construction plan set.
n. Use the existing Virtual Reference System in the State’s Paris District to facilitate surveying provided sufficient cellular coverage is available. In the event cellular coverage is not available, datum shall be based on static observations meeting the specifications fo...
TASKS TO BE COMPLETED a. Design Surveys The State will request design surveys on an as needed basis. The Engineer’s Surveyor shall perform tasks including, but not limited to the following: Obtain or collect data to create cross-sections and digital terrain models. Locate existing utilities. Locate topographical features and existing improvements. Provide details of existing bridge structures. Provide details of existing drainage features (e.g., culverts, manholes). Locate wetlands. Establish additional and verify existing control points. Horizontal and Vertical control ties must be made and tabulated, to other control points in the vicinity, which were established by other sources such as, the National Geodetic Survey (NGS), and the Federal Emergency Management Agency (FEMA), and any other local entities as directed by the State. Locate existing right-of-ways. Review right-of-way maps. Locate boreholes. Perform hydrographic surveys. Update existing control data and prepare survey control data sheets, as directed by the State for inclusion into a construction plan set. The Engineer’s Surveyor shall also prepare, sign, seal, and date a Survey Control Index sheet and one or more Horizontal and Vertical Control sheet(s) for insertion into the plan set The Engineer shall cause the signing, sealing, and dating of the Survey Control Index Sheet and any Horizontal and Vertical Control Sheets by the professional engineer in direct responsible charge of the surveying and the responsible registered professional land surveyor (RPLS). The Survey Control Index sheet shows an overall view of the project control and the relationship or primary monumentation and control used in the preparation of the project, Horizontal and Vertical Control sheets identify the primary survey control and the survey control monumentation used in the preparation of the project. Both the Survey Control Index sheet and Horizontal and Vertical Control sheet(s) must be used in conjunction with each other as a set. The State’s forms for these sheets can be downloaded from the TxDOT website. DocuSign Envelope ID: 5B10DF3F-01CC-4436-8E6B-37B38F170AB1 The Survey Control Index Sheet must contain the following: Overall view of the project and primary control monuments set for control of the project Identification of the control points Baseline or centerline Graphic (Bar) Scale North Arrow The note “The survey control information has been accepted and incorporated into this PS&E”, which m...
TASKS TO BE COMPLETED. Design Surveys The State will request design surveys on an as needed basis. The Surveys shall perform tasks including, but not limited to the following: DocuSign Envelope ID: 5174409E-E49B-4D11-8837-551F1909917A
TASKS TO BE COMPLETED a. Design Surveys The State will request design surveys on an as needed basis. The Engineer’s Surveyor shall perform tasks including, but not limited to the following:
i. Obtain or collect data to create cross-sections and digital terrain models.
ii. Locate existing utilities. DocuSign Envelope ID: 0C91386F-DF9D-433A-86CC-800E74B2A43C iii. Locate topographical features and existing improvements.
TASKS TO BE COMPLETED a. Aerial Photography The Engineer’s Surveyor shall provide aerial photography for low altitude aerial mapping appropriate for detailed design. • Ground Control Accuracy Standards
