anchor Description
This project provides for the replacement of the existing Greentree Road bridge No. M-0180 over Bulls Run in Bethesda. The proposed replacement includes the removal and replacement of the existing bridge structure and a temporary bridge to accommodate pedestrian and bicycle traffic during construction. The proposed work also includes sidewalk and bus stop improvements and approximately 330' of approach roadway work at each end of the bridge. The road and bridge will remain open to vehicular traffic during construction.
anchorCapacity
The Average Daily Traffic (ADT) is approximately 6,516 vehicles. The roadway capacity will not change as a result of this project.
anchorEstimated Schedule
The design is expected to be completed in FY28. Construction is expected to begin in FY28 and complete in FY30. The estimated duration of construction is 15 months.
anchor Justification
The proposed replacement work is necessary to provide a safe roadway condition for the public. The 2020 Bridge Inspection Report indicated that the existing culvert, which acts as a long span bridge, was in poor condition due to: large areas of spalled concrete, large cracks, exposed and corroded reinforcement steel, and large areas of delamination. The existing bridge is at risk of becoming structurally deficient and must be replaced.
anchorFiscal Note
The costs of bridge construction and construction management for this project are eligible for up to 80 percent Federal aid funding. The design costs are covered in the Bridge Design project (No. 509132).
anchorDisclosures
A pedestrian impact analysis has been completed for this project.
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)