Another week, another letter from WMATA to Montgomery County expressing unhappiness over the Silver Spring Transit Center and efforts to repair design and construction problems.
The latest, delivered by courier on Friday, focuses on plans to fix two key 10-foot-by-40-foot roadway slabs at opposite ends of the center’s second level. The slabs were found to be without pre-tensioned steel supports that the county said were indicated in design drawings. WMATA, which is supposed to take over and operate the center when it is complete, has said it wants the slabs completely demolished and replaced.
But a working group of county officials and contractors agreed that complete demolition could damage other parts of the structure. They devised a plan to strengthen the slabs with pressure injections of concrete followed by a new protective overlay. In the July 19 letter, WMATA deputy general manager A. Robert Troup said that if the county proceeds, it is completely on the hook for any subsequent maintenance costs.