Rehabilitation of the Pennsylvania Avenue Bridge over Rock Creek and the Rock Creek Parkway
As a DBE sub-consultant to a major transportation consulting firm, BvF provided roadway design and traffic engineering services to rehabilitate the existing Pennsylvania Avenue Bridge over Rock Creek, Washington, D.C. The bridge was on DDOT’s list of structurally deficient bridges, and thus, DDOT undertook this project to repair the structural deficiencies of the existing bridge and increase its service life. The Pennsylvania Avenue Bridge is a simple span reinforced concrete deck arch structure with four two-way traffic lanes over Rock Creek and Rock Creek Parkway.
During the Investigation Phase, BvF conducted a field observation to identify existing sidewalks, curb ramps, underwalk drains, pedestrian crossings, pedestrian refuge areas, bus shelters, and other pedestrian facilities within the District right-of-way that were not in compliance with the Americans with Disabilities Act Accessibility Guidelines (ADAAG). BvF made recommendations to address issues and non-ADA-compliant features. In addition, BvF collected an inventory of the existing low clearance signs on Rock Creek Parkway and trail and prepared a written report with recommendations for modifications to the existing low clearance signs and new low clearance signs as appropriate.
During the Design Phase, BvF was responsible for the development of construction plans, specifications, cost estimates, construction schedule, and other bid documents for the rehabilitation of the Pennsylvania Avenue Bridge superstructure and substructures and reconstruction of the approach roadway. BvF designed the horizontal and vertical alignment of the approach roadway and prepared Construction Plans, Profiles, and Cross Sections. BvF also developed Traffic Control and Traffic Staging Plans for Pennsylvania Avenue and Rock Creek Parkway. BvF assisted in incorporating innovative and accelerated project development and construction techniques to enhance the opportunity to complete the construction on time, on budget, and with minimum disruption to the public and local businesses. BvF was also responsible for preparing the Traffic Impact Study report.