Leidesdorff Lid Drop Structure

Dokken Engineering prepared a detailed PS&E package for modifications to the Leidesdorff Lid Drop Structure. The project provided for vehicular traffic and a southbound Folsom Boulevard off-ramp to the light rail station at the intersection of Sutter Street and Leidesdorff Street.

The Engineers Estimate was $380,000. Due to high concrete costs at the time, bids were non-responsive. Dokken Engineering re-designed the structure to use different railing materials. The job was re-bid, and came at the estimated pricing which was within the city’s budget. Due to the quick action of Dokken Engineering, the City was able to re-bid the project without losing the construction season.

Some of the project's safety improvements include:

• FHWA approved concrete traffic barriers on the Drop Structure

• Raised median

• New curb return with curb ramp at the Reading Street/Leidesdorff Street/On-ramp intersection

• Stop signs, advance warning signs and pavement markings for the intersection

• Signing and striping

• Pedestrian Safe Zones and paths