Arlington County will begin reconstruction of the Mount Vernon Avenue Bridge over Four Mile Run in mid-August, launching a $23.8 million project expected to last two years.
The bridge is in poor condition, with the west side sidewalk already closed due to structural deficiencies. The joint capital improvement project between Alexandria and Arlington County will split costs evenly between the two jurisdictions.
Construction will proceed in phases to maintain traffic flow. Arlington County plans to upgrade the roadway and bridge deck one side at a time while keeping the opposite side open for two-way traffic. One sidewalk will remain accessible throughout the project.
The work begins with a two-month pre-construction period starting next week. During this phase, bridge traffic will be restricted to outer lanes while crews work on the median. Minor preparations will also take place on the Alexandria side of Four Mile Run.
Phase 1, expected to last one year, will reduce bridge traffic to a single lane in each direction while both southbound lanes undergo reconstruction.
Weekend parking along Mount Vernon Avenue will be unavailable for the project’s duration. Construction signage and detour routes for area trails have been posted.
Alexandria will maintain erosion and sediment controls in the park and along Four Mile Run, including tree fencing, throughout the construction period. No closures are planned for pedestrians or cyclists on the Alexandria side of Four Mile Run.
For more information, visit the Arlington County project page.
The full press release from the City of Alexandria.
Construction to Begin on Mount Vernon Avenue Bridge, Expect Delays
Starting mid-August, Arlington County will begin reconstruction of the Mount Vernon Avenue Bridge over Four Mile Run which is in poor condition and has already had the sidewalk on the west side closed due to structural deficiencies. . The bridge reconstruction and related work is expected to last two years. Construction signage and detour routes for area trails have already been posted. The $23.8M project is a joint capital improvement project between the City of Alexandria and Arlington County with a 50/50 project cost share between both parties.
During the project, Arlington County will upgrade the roadway and bridge deck of the structure one side at a time, keeping the other side of the bridge open for traffic in both directions. There will be one sidewalk on the bridge open at all times.
The pre-construction period is expected to last two months. During this period, bridge traffic will be reduced to the outer lanes for work on the median. Beginning next week, minor preparations for the reconstruction will take place on the Alexandria side of Four Mile Run. For the duration of the project, the City of Alexandria will ensure there are proper erosion and sediment controls in the park and along Four Mile Run, including tree fencing.
Phase 1 of the project is expected to last for one year. During this period, bridge traffic will be reduced to a single lane in each direction while both southbound lanes are under construction. There are no closures for pedestrians or cyclists on the Alexandria side of Four Mile Run at this time. Weekend parking along Mount Vernon Avenue will be unavailable for the duration of the project.
For more information, visit the Arlington County project page.
