Joan Morris 703-259-1799
Jennifer McCord 703-259-1779
Aug. 26, 2010
LEIGH MILL BRIDGE WILL RE-OPEN BY DECEMBER
Detour remains in effect during bridge replacement
CHANTILLY—The one-lane Leigh Mill Road bridge over Difficult Run in Great Falls will re-open to traffic by December, rather than in early September as originally anticipated, the Virginia Department of Transportation announced today. The delay means that traffic will continue to be detoured while crews replace the bridge.
Since the bridge closed to traffic July 12 and the superstructure was removed, VDOT engineers have determined that the bridge abutments and wing walls are in worse condition than previous investigations and inspections revealed. The old abutments and wing walls, of unknown age, are constructed of stone masonry which has lost much of its structural integrity over the years. The entire substructure has to be demolished and replaced, then an exterior stone texture will be added to replicate the original structure. VDOT engineers are developing new plans for the abutments and wing walls and hope to accelerate the work and open the bridge sooner than December.
The new bridge will be the same length, elevation and alignment as the existing bridge, but will be 15 feet wide rather than 13 feet to more safely accommodate pedestrians and bicyclists. The new deck, posts, rails, and curbs will be constructed with a laminated wood product that is bonded with strong, waterproof adhesives. When finished, the new bridge will be safer, stronger, last longer and have a natural appearance.
About a thousand vehicles a day use the bridge.
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