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Rehabilitation of Cedar Lane Bridge over Rock Creek. Montgomery County, Maryland.

Cedar Lane is a commuter bypass of Rockville Pike (MD 355) with approximately 12,565 average daily traffic (ADT). The project was in close proximity to local schools and Rock Creek Park so pedestrian traffic needed to be maintained throughout construction.

Maryland Base Relocation and Closure work was being completed at the National Institutes of Health and the National Navy Medical Center which impacted the schedule for this project. Due to a compressed construction schedule, the use of precast concrete allowed the new bridge to be erected in nine calendar days and the proposed bridge erection to be completed in twenty-one calendar days from the road closure. The other benefits to precast concrete include: lower maintenance costs for the life of the bridge; the bridges strength will increase over time; and variables, such as weather and humidity, are eliminated because the precast concrete is produced in a factory.

Rehabilitation of Cedar Lane Bridge over Rock Creek
Services Performed
Project Highlights


WRA provided final design services for the superstructure replacement and rehabilitation of an existing four span, 170-foot long, prestressed concrete voided slab structure over Rock Creek, including the reconstruction of the roadway approaches as needed.