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M STREET, N.W. over PARKWAY & ROCK CREEK

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

Facts

Name:M STREET, N.W. over PARKWAY & ROCK CREEK
Structure number:0035
Location:M ST. OVER PARKWAY N.W.
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:78.1 ft. [23.8 m]
Total length:232.0 ft. [70.7 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:59.1 ft. [18.0 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1928
Year reconstructed:1999
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:10,800 [as of 2007]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:65.9 tons [59.9 metric tons]
Inventory rating:38.9 tons [35.4 metric tons]
Sufficiency rating:81.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201681.0GoodGoodVery GoodGood-10800
September 201479.0GoodGoodVery GoodGoodFO10800
September 201279.0FairSatisfactoryGoodSatisfactoryFO10800
October 201079.0FairSatisfactoryGoodGoodFO10800
October 200879.0GoodGoodVery GoodGoodFO10800
October 200679.0GoodVery GoodVery GoodGood-22300
October 200479.0GoodGoodVery GoodGood-22300
December 200379.0GoodGoodVery GoodGood-22300
December 200279.0GoodVery GoodVery GoodGood-22300
January 200179.0GoodExcellentVery GoodVery Good-22300
May 199959.2GoodExcellentVery GoodVery Good-22300
May 199429.1PoorSeriousSeriousPoorSD22300
February 199229.1PoorSeriousSeriousPoorSD22300
March 199046.1PoorSeriousPoorPoorSD22300