CGA Engineers joined ventures with Craig & Keithline to provide design services for US-59 highway, which included the realignment of a 0.79 mile section of the highway for the State of Oklahoma Department of Transportation. This project includes horizontal realignment, design of detour roads, and evaluation of alignment for super-elevation in order to meet design criteria. The ultimate design involves generating horizontal alignment for both an interim 44 feet wide pavement section as well as to be able to accommodate a future five lane section. The horizontal super is based on e=8% maximum super-elevation table.
Part of the design for this project included improvements to existing drainage ditches and design special ditches. The design required special consideration for existing culvert structure underneath the existing highway. Realignment of the street above the structures required an in depth analysis. Four cross drain structures were analyzed and sized for the 50 year flood event according to ODOT Drainage Standards.
This project allows CGA Engineers to exhibit their experience in transportation design. Almost one mile of existing highway is being reconstructed or rehabilitated.
- 0.79 miles of 44-ft wide four-lane highway
- Design 22-ft wide detours
- Design and generate drainage structures
- Design of cross road culverts design driveway
- Design profiles
- Generate removal/demolition plans
- Generate stormwater pollution prevention plans
- Develop erosion control plans
- Develop right of way plans
- Develop construction sequence plans
- Develop traffic control plans
- Prepare plan field review report and cost estimates
- Generate miscellaneous details
Estimated Engineer's Construction Cost - $3,237,808