The County Board is set to vote this weekend on a contract to build a long-awaited pedestrian bridge.
On Saturday, it is expected that the Arlington County Board will approve a $1.6 million contract to construct the Shirlington Road Pedestrian Bridge. The 15-foot-wide prefabricated steel bridge will run the length of Four Mile Run and parallel to the road with the purpose of providing safer bicycle and pedestrian access.
It will connect Shirlington and S. Arlington Mill Drive to Jennie Dean Park and the Green Valley neighborhood. It will also serve local users of the heavily-used Four Mile Run and W&OD trails nearby.
Work on the bridge could begin in the second half of this year if the contract is approved over the weekend, Arlington Dept. of Environmental Services spokesperson Claudia Pors told ARLnow. That would mean a completion date in mid to late 2024.
“The existing Shirlington Road vehicular bridge primarily funnels vehicles to/from I-395 and lacks safe, comprehensive accommodations for pedestrians and bicyclists traveling through this area,” the report to the Board says.
“This project will provide a key missing link in the County’s bicycle network by providing a north-south protected bicycle facility that will link up with the existing Four Mile Run Trail along South Arlington Mill Drive to the west and along Four Mile Run in the City of Alexandria to the east of the bridge,” the report adds.
The bridge has been under discussion for two decades and has been the topic of conversation among county staff and the public for years.
It will be constructed in two parts, per Pors. First, the span will be built offsite, a process that will take about nine months, while abutments will be added at S. Arlington Mill Drive and Jennie Dean Park where each end of the bridge will go. Around this time, the bridge’s walls will be built and the sidewalk and crosswalk at S. Arlington Mill Drive will be shuttered. Bike and pedestrian traffic will be detoured.
The bridge, then, will be lifted by a crane and installed.
“It’s possible that lanes on the existing bridge will close to accommodate this installation, and the public would be given notice of any detours,” Pors noted.
New street lighting on each end of the bridge will be installed as well, plus median, sidewalk and crosswalk retrofits. A new Rectangular Rapid Flashing Beacon will be installed in the median as well.
The work is set to be done by D.C.-based Milani Construction, whose $1.38 million bid (plus $277,000 in contingency costs) actually came in under the county engineer’s estimated construction cost.
Last year, work was completed on the parallel vehicle bridge on Shirlington Road. That included resurfacing, routine maintenance, widening the sidewalk by several feet on the west side of the bridge, widening curb ramps, and adding a median at the mid-block crosswalk near 27th Street S.
A number of these improvements came as a result of public feedback.
Additionally, the county is set to study the feasibility of adding another crossing at the intersection of S. Arlington Mill Drive and Shirlington Road.
“County staff have begun study efforts and anticipate reaching out to the public for input this fall,” Pors said.