Department of General Services

The project provides for the design and renovation of the 401 Hungerford Drive parking garage. The concrete decks in the three story garage are experiencing moderate to severe deterioration. A study completed in June 2005 recommended the removal and replacement of the deteriorated concrete, removal and installation of new expansion joints, repair of the stair tower cracking, new lighting, seismic reinforcement, storm water management improvements, application of a traffic bearing membrane, concrete sealer and improvements to the parking lot.

This project has been completed. The Final Release of Retainage documents have been completed. Finance processed the documents on 12/22/2011 for payment. This competes final payment under this contract.

Project Images

(click on image for map)	(click to view image full size)
Vicinity Map	Site Map
	Typical view of incipient floor slab  deterioration.  Note pattern of small, isolated spalls over  individual rebar.
	Typical view of more advanced floor slab  deterioration.  Note pattern of larger area of spalls over a  series of rebar.
	Typical view of severe floor slab deterioration.  Note corrosion on completely exposed  rebar adjacent to vehicle wheel, and  deteriorated concrete reduced to rubble.
	View of typical spalling on Level 3.
	Failed concrete and concrete patches at  bottom of entrance ramp to Level 3.   Note multiple joints due to a series of patch  repairs. Cause of cracking believed to be  thermal movement restrained at ramp  bottom.
	Cracking of column beneath entrance ramp  to Level 3.  Cause of cracking believed to be thermal  movement exacerbated by weathering.
	Cracking of concrete beam/columns at  top of Level 2 entrance ramp.  Note that cracks have occurred through  the beam/column connection. Cause  of cracking believed to be thermal  movement restrained at slab-on-grade  ramp to supported ramp.
	Diagonal cracking in masonry at stair  tower.
	Crack in clay brick at stair tower.  Cause of cracking believed to be thermal  movement of garage restrained by stair  tower.
	Localized failure of southeast column  adjacent to WMATA right of way.
	Typical view of South Elevation
	Typical view of North Elevation.
	Typical view of North Elevation at  entrance ramp from street to Level 3.
	Typical view of West Elevation with  entrance ramp to Level 3.
	Typical view of West Elevation with  entrance ramp to Level 2.
	Surface deterioration of vertical walls at  Level 3.  Note fine surface cracking, similar to ASR  induced cracking, and spall of rebar.

Montgomery County Department of Health and Human Services