West North Loop @ Hancock Creek Bridge Replacement
| Owner | Texas Department of Transportation |
|---|---|
| Client | T&T Engineering, Inc. |
| Project Location | Austin, Texas |
Key Features:
- Accelerated Bridge Construction
- Prestressed Concrete Slab Beams
- Precast Substructure Elements
The original bridge over Hancock Creek (a FEMA-controlled waterway) was constructed in the 1930’s with steel I-beam spans. In 1958, an additional retaining wall and footing were added to the existing bridge. P.E. Structural designed a new 50ft prestressed concrete slab beam bridge to replace the structurally deficient existing bridge. Because this was a critical pedestrian route the City wanted to limit the bridge closure to 6 weeks, so construction was fast paced.
PESC developed a Bridge Layout utilizing a shallow superstructure to meet site restrictions and hydraulic conditions. Use of precast elements (slab beams and abutment caps) and construction sequencing allowed rapid construction with minimal disruption of vehicular and pedestrian traffic. Because this project exemplified an economical, constructible and durable solution for the accelerated replacement of short-span bridges, it was the subject of a paper Principal Lisa Powell authored that was well-received at several conferences and workshops around the U.S. on Accelerated Bridge Construction. $392K Construction. Completed 2004.