anchor Description
This project provides for the rehabilitation of the existing Gregg Road Bridge No. M-0119 over Hawlings River Tributary. The existing bridge, built in 1958, is a single span (18') steel beam with asphalt filled corrugated steel plank deck structure carrying a 17'-6" clear roadway with no sidewalks. The proposed rehabilitation includes the removal and replacement of the existing bridge superstructure with new galvanized steel beams and concrete deck. The proposed Gregg Road Bridge will reuse the existing bridge abutments and clear roadway width will remain the same. The road and bridge will be completely closed to vehicular traffic during construction and traffic will be detoured.
anchorCapacity
The roadway Average Daily Traffic (ADT) is approximately 420 vehicles and the roadway capacity will not change as a result of this project.
anchorEstimated Schedule
The design of the project is expected to finish in the fall of 2025. Construction is scheduled to start in summer of 2026 and will be completed in two months. The bridge will be closed to traffic during school summer break of 2026.
anchor Justification
The proposed rehabilitation work is necessary to provide a safe roadway condition for the traveling public. The 2022 bridge inspection report indicates that the bridge steel beams are in poor condition with up to a quarter of an inch deep pitting throughout the top and bottom flanges and areas of 100% section loss at beam web ends. The bridge is considered structurally deficient and functionally obsolete. The bridge is currently posted for a 62,000 lb. limit for a single-unit truck and 80,000 lb. limit for a combination unit truck.
anchorFiscal Note
Since the existing bridge is less than 20' long, construction and construction management costs for this project are not eligible for Federal Aid.
anchorCoordination
Maryland State Highway Administration, Maryland Department of the Environment, Maryland-National Capital Park and Planning Commission, Montgomery County Department of Permitting Services, Utilities, and Bridge Design Project (CIP 509132).