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Q STREET, N.W. over ROCK CREEK

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Q STREET, N.W. over ROCK CREEK
Structure number:0117
Location:Q ST. OVER ROCK CREEK
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:57.1 ft. [17.4 m]
Total length:265.1 ft. [80.8 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:49.9 ft. [15.2 m]
Vertical clearance below bridge:12.5 ft. [3.8 m]
Owner:State Highway Agency [01]
Year built:1915
Year reconstructed:2000
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
Main spans material:Concrete [1]
Main spans design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:10,100 [as of 2007]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:69.9 tons [63.5 metric tons]
Inventory rating:41.9 tons [38.1 metric tons]
Sufficiency rating:75.7
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$5,000,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201675.7FairGoodSatisfactoryGoodFO10100
May 201475.7FairGoodSatisfactoryGoodFO10100
June 201275.7FairSatisfactorySatisfactorySatisfactoryFO10100
December 200973.6FairGoodSatisfactoryGoodFO10100
January 200873.3GoodGoodGoodGood-12300
August 200573.3GoodVery GoodVery GoodGood-12300
July 200373.3GoodVery GoodVery GoodGood-12300
August 200173.3GoodExcellentVery GoodGood-12300
December 199755.8PoorPoorFairFairSD12300
February 19965.4PoorPoorPoorFairSD12300
June 199336.0PoorPoorPoorFairSD12300
September 199052.3PoorPoorFairFairSD12300