Construction
Details
- Year Started
- 2004
- Year Completed
- 2012
- Project Elements
-
- Commuter rail
Overview
This new-start commuter rail project with a north and south segment included 3.2 million cy of mainline earthwork, geotechnical and drainage improvements, 89-miles of ballasted mainline single track with sidings and yard and shop tracks, 915,845 tons of ballast, 83 at-grade road crossings, 465,000 sf of mechanically stabilized earth (MSE) retaining walls, soil nail walls, sheet pile walls, 15 passenger stations with 11 park-and-ride facilities, a two-level parking garage, 27 rail bridges, two steel and concrete flyover bridge structures that span Weber River and Union Pacific Railroad (UP) mainlines, 16 major canal or irrigation structures, one pedestrian mainline undercrossing, roadway reconstruction, a centralized train control (CTC) system, fiber-optic installation and relocation, and duct bank installation. The project required extensive coordination with the UP since the entire commuter rail alignment was constructed in UP right-of-way under live track conditions with tie-ins to UP service leads and relocation of UP mainline tracks.