2010 to 2011: U.S. INTERSTATE 25 - SPEER BLVD TO 20TH STREET / 15TH STREET


Below is a signature highway project that SEAPE's staff had completed while working as the roadway design team leader and manager at former companies:


The project is widening of freeway interstate I-25 in state of Colorado, U.S.A., with 2 additional auxiliaries on existing 4-lane South bound to improve capacity and safety. The design also includes changes to Speer Boulevard off-ramp and the 20th Street on-ramp, 15th street bridge.

Services Provided:

- Conceptual to basic design and layout of horizontal and vertical for auxiliaries and on/off ramps complying to CDOT, AASHTO, FHWA, MUTCD standards and specifications.

- Provide grading to analyze impacts to existing sideslopes and to optimze retaininig wall structure.

- Optimize horizontal and vertical layout under and on 15th street bridge.  

Category: Highways/Roadways

Size: 1.2 Miles

Former Company: TSH Engineering; Role: Roadway ManagerClient: Colorado Department of Transportation