The 1994 Arlington Bicycle Transportation Plan included 37 proposals for new or improved bicycle facilities. In the intervening  years the County has made progress or completed most of those projects and has subsequently added other bikeway proposals to the amended master plan. One project included in the plan, which has not been acted upon is the Route 110 south trail paving and upgrade. In FY2003, Arlington was able to secure a federal CMAQ grant to pay for 80 percent of the work involved to grade, pave, enhance the crossings, and install new signage and landscaping along the trail.
An unpaved trail currently exists along the east side of Route 110. It's frequently used by Pentagon employees and visitors and the county plans to upgrade it to a paved trail. This project is still in the design phase, but the design is moving forward.