Silver Line Maintenance Yard

Project Summary

Timmons Group is currently providing design support surveying, site survey management of all surveying consultants on site, a portion of the construction stakeout and as-built surveying for the Silver Line Maintenance Yard site. Timmons Group is responsible for ensuring all on-site survey consultants meet the rigorous project requirements and specifications. Some of the work includes the creation of a GIS as-built survey for all installed facilities, laser scanning and setting of high accuracy permanent site survey control.

The Metropolitan Washington Airports is building the largest rail yard and maintenance system in the Metro system. The facility will be built on approximately 90-acres of land and will be located on Route 606 on Dulles Airport property.

The facility will have five service buildings that will have the ability to maintain, inspect and repair the rail cars. The rail yard will store 168 rail cars and will be used to store the trains overnight as needed.