Precast prestressed concrete pavement was used on a section of I-10 near El Monte, California as a part of widening the interstate. 27 feet of traffic lanes and 10 feet of shoulder were added to the existing pavement. Construction was limited to the hours of 11 pm – 5 am for installation of the panels.
A change in cross-slope was required from the main lanes to the shoulder. This was accomplished by casting panels with a flat bottom and variable thickness to achieve the desired cross slope transition. The panels were installed over a lean concrete base. Plain dowelled expansion joints were used for the joint panels and central stressing was utilized for longitudinal post-tensioning.
Client: California Department of Transportation (CALTRANS)
ADDITIONAL INFORMATION
- Completed: April 2004
- Project Length: 248 ft (2 lanes plus shoulder)
- Panel Dimensions: 8′ x 37′ x 10″-13″
- Number of panels: 31
- Number of post-tensioned sections: 2 @ 124′
- Panel Installation Rate: 15 panels/3 hours
- Features: Nighttime construction. Change in cross-slope cast into the panel surface.
