Concept Plans Near Gallows Road and Dunn Loring Metro Station
During the concept development phase, VDOT’s I-66 project team determined that WMATA’s existing Traction Power Sub-Station (TPSS) at the Dunn Loring Metro Station needed to be relocated to make room for additional lanes on I-66 Eastbound as you approach the Beltway. As shown below, the sub-station is located very close to the existing lanes.
VDOT worked with WMATA to evaluate potential locations where the TPSS could be moved. Two locations were evaluated:
Further to the west near Prosperity Avenue; and
North of I-66, east of Gallows Road (on land already required for the project).
I-66 Dunn Loring Traction Power Sub-Station (TPSS) Candidate Relocation Sites
Concerns with relocating the TPSS include:
Finding a new site that meets WMATA electrical service requirements and minimizes impacts to the surrounding communities;
Overall project schedule impacts; and
Added WMATA project work, while Safetrack, Silverline Extension, and other WMATA efforts are underway.
Because of these concerns, concepts were explored to avoid a TPSS relocation. One option that is shown on the concept plan for Vaden Drive to Gallows Road prepared by I-66 Express Mobility Partners (VDOT’s private partner), is to bridge over the TPSS with a two-lane ramp for general purpose traffic from Eastbound 66 to Southbound 495.
VDOT’s I-66 project team and I-66 Express Mobility Partners are continuing to study options, working with WMATA, and will provide opportunities for public input, and share environmental and traffic analyses results before design plans are finalized.
Community briefings on this issue and the overall project are available by request.
Information will be provided at Public Information Meetings on June 12, 14 and 15, 2017.
Design Public Hearings will be held in fall 2017.