Dolfield Boulevard Bridge
Over Red Run Branch
Baltimore County, Maryland
The project involved the extension of a four lane roadway, Dolfield Boulevard, in Owings Mills, including a new 420’ long steel girder bridge over Red Run Branch and associated civil/site work. The bridge was designed as jointless with approach slabs and weathering steel girders to try and minimize future maintenance issues and costs. As the prime consultant for the project, KPA performed the following design tasks: highway/geometric design, complete bridge design including H&H and scour design, drainage and stormwater management design, pavement design, sanitary sewer relocation design, site grading and erosion and sediment control design, pavement design, and incidental roadway features such as traffic barriers, sidewalks, and curb & gutter. Management of the project also required KPA to coordinate with the adjacent developer for stormwater management design, grading, and right-of-way/easements and also coordination with BGE to include electrical conduits on the bridge. Restoration of a hiker/biker trail under the proposed bridge was also included and designed for by KPA. A 110’ long retaining wall adjacent to the bridge along the roadway approaches was fully designed and detailed by KPA, along with 95% contract documents prepared, prior to its elimination from the project due to right-of-way and grading issues being resolved with the adjacent developer which made the retaining wall unnecessary. These “last-minute” changes were made quickly and efficiently by KPA to allow the Contract Advertisement to commence on schedule.
KPA prepared all the necessary plans and permit applications to obtain the required Federal, State, and Local permits for the project such as the Army Corps. and MDE Joint Permit and Grading and Erosion & Sediment Control from the County Soil Conservation District. KPA coordinated with its environmental subconsultant for wetland mitigation services required for the project.
DCI was a subconsultant to KPA on the project and was responsible for all data collection, property line surveys, topographic surveys, and final right-of-way plat preparation for use by the County during right-of-way negotiations. This project required Permanent Access and Right-of-Way Takes for the proposed roadway and bridge; Drainage and Utility Easements for the stormwater management and sewer relocation work; Revertible Easements for the roadway approach embankments; and Temporary Construction Easements for contractor access to construct the bridge. All of these various easement types were separated and shown on DCI’s Final Right-of-Way Plats that were submitted to the County.
Key issues for the Project:
Jointless design of the bridge superstructure to reduce future maintenance/costs.
Coordination with adjacent land developer and property owners for R/W needs and Roadway extension tie-ins.
Obtaining all of the required permits to construct the roadway and bridge (over wetlands and waterway).