QnA OK FW TSM 10

6982AF27B000002
OK FW TSM 10(1) NFH Entrance Road and Parking Improvements Questions and Answers During Advertisement
October 20, 2026

Questions
Do you have structural plans showing the bridge loads so I can design a helical pile for the project in Tishomingo, OK?

Answers
There are no bridges or helical piles on this project.

October 22, 2026

Questions
The design appears to be traced over an aerial photograph referenced to the Oklahoma State Plane coordinate system or WGS 84. Please confirm the horizontal datum, coordinate system (including zone), and units used for the design.
Are there existing survey control points on the site that the design points are tied to? If so, please provide their coordinates, descriptions, and locations.
If no control points were established before design, who is responsible for establishing them? Will the Government or the design engineer provide them, or does the contractor need to? Superimposing design data over an aerial image that is only approximately in State Plane coordinates is not sufficient for survey and layout. Will the Government provide a survey-grade, control-based design file (for example CAD or LandXML) that can be used to stake the work?
Will the Government or design engineer collect as-built (existing conditions) survey data on the ground, tied to established control, so the design can be accurately overlaid on the site?
Is the engineer of record responsible for tying the design to ground control? Establishing that tie is a design engineering function, not a surveyor's function. Please confirm who will perform it.

Answers
Refer to the C sheets in the plans and SCR 102.02A for information on the coordinate system used for design data.
There are no existing survey control points on the project site that the design points are tied to.
Refer to SCR and FP-24 section 152 for construction survey and staking requirements.
No.

No.
Refer to SCR and FP-24 section 152 for construction survey and staking requirements.

6982AF27B000002
OK FW TSM 10(1) NFH Entrance Road and Parking Improvements Questions and Answers During Advertisement

If control points were set before design, please provide the control data and the survey that supports the design. A surveyor could then use those points to lay out the work.
The plans do not show grades or grading information. Please provide proposed grades, finished elevations, spot elevations, contours, slopes, and cross-sections.
What vertical datum applies (NAVD 88, for example), and what