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ROCK CREEK PARKWAY over ROCK CREEK

Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:ROCK CREEK PARKWAY over ROCK CREEK
Structure number:3450018P0000000
Location:0.3 MILES FROM HARVARD ST
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Local (Urban) [19]
Length of largest span:146.7 ft. [44.7 m]
Total length:201.8 ft. [61.5 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Skew angle:54°
Owner:National Park Service [66]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:28,795 [as of 2007]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:59.4 tons [54.0 metric tons]
Inventory rating:35.2 tons [32.0 metric tons]
Sufficiency rating:65.7
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$735,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201565.7FairSatisfactoryFairGoodFO28795
June 201365.7FairSatisfactoryFairGoodFO28795
June 201165.7FairSatisfactoryFairGoodFO28795
June 200965.7FairSatisfactoryFairGoodFO28795
July 200765.7FairSatisfactoryFairGoodFO28795
June 200577.4FairGoodSatisfactoryGoodFO28795
July 200377.4FairGoodSatisfactoryGoodFO28795
June 200177.4FairGoodSatisfactoryGoodFO28795
May 199977.4GoodGoodGoodGoodFO28795