East Atlantic Avenue Bridge Replacement
Due to its poor condition, with severe rusting to the steel pier and steel superstructure girders, the East Atlantic Avenue Bridge needed to be replaced. The site is unique in that the bridge does not span over anything relevant, but it does create flood storage for the adjacent Peters Creek. The bridge needed to be replaced, but simply removing it and placing fill was not an option per the NJDEP.
RVE was retained by Camden County (County) to provide the professional engineering design services to replace the East Atlantic Avenue (CR 729) Bridge. Our firm provided a variety of services to the County, including:
- Reviewing and gathering existing documents and meeting with the NJDEP and County to establish an acceptable scope of work with both parties.
- Performing an initial site visit, taking photographs, and inventory the overhead utilities.
- Developing two concept designs.
- Preparing the survey and base plan to verify the existing survey.
- Performing a wetlands delineation of the area around the bridge where potential fill could be placed and preparing a report detailing the methodology used to delineate the wetlands, which included identifying the types of wetlands, hydrology, soil, and vegetation.
- Performing soil borings by completing two standard penetration test (SPT) borings.
- Updating the previously completed hydraulic and hydrologic study based on the NJDEP meeting.
- Developing a general plan, elevation, and section (GPE).
- Preparing the applications and associated documentation to the required outside agencies. Permits include: Soil Conservation District Certification; NJDEP Individual Flood Hazard Permit; NJDEP General Wetlands Permit Application; NJDEP Statewide General Permit; and NJDEP Freshwater Wetland General Permit.
- Preparing construction plans and documents and provide bidding assistance services.
- Performing shop drawing, submittal, and material certification reviews.
The preferred alternative was a two-span, concrete rigid-frame structure. It is easily maintained, was installed quickly, and was less expensive than a conventional beam-abutment bridge. The bridge design was finalized and steel h-piles were used as the foundation with a precast concrete rigid frame, two-span structure that solved the needs of the County and NJDEP.