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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 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:65.7
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$735,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201565.7Functionally obsoleteSatisfactoryFairGood28795
June 201365.7Functionally obsoleteSatisfactoryFairGood28795
June 201165.7Functionally obsoleteSatisfactoryFairGood28795
June 200965.7Functionally obsoleteSatisfactoryFairGood28795
July 200765.7Functionally obsoleteSatisfactoryFairGood28795
June 200577.4Functionally obsoleteGoodSatisfactoryGood28795
July 200377.4Functionally obsoleteGoodSatisfactoryGood28795
June 200177.4Functionally obsoleteGoodSatisfactoryGood28795
May 199977.4Functionally obsoleteGoodGoodGood28795