ROUTE 29 over C&O CANAL, N.W.


+38.90500, -77.07000
38°54'18" N, 77°04'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:ROUTE 29 over C&O CANAL, N.W.
Structure number:0032(TO KEY BR)
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:94.2 ft. [28.7 m]
Total length:94.2 ft. [28.7 m]
Roadway width between curbs:57.1 ft. [17.4 m]
Deck width edge-to-edge:67.9 ft. [20.7 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Skew angle:62°
Owner:State Highway Agency [01]
Year built:1998
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span 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 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:31,200 [as of 2006]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Scour condition:Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Operating rating:73.8 tons [67.1 metric tons]
Inventory rating:44.9 tons [40.8 metric tons]
Sufficiency rating:99.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201599.0FairGoodGoodSatisfactory-31200
September 201380.0FairGoodGoodSatisfactoryFO31200
September 201180.0GoodGoodGoodExcellentFO12500
September 200980.0FairGoodGoodSatisfactoryFO12500
June 200780.0GoodGoodGoodGoodFO10500
November 200580.0GoodVery GoodGoodGood-10500
June 200380.0GoodVery GoodVery GoodVery Good-10500
March 200180.0GoodExcellentVery GoodVery Good-10500
March 199646.1PoorPoorPoorFairSD10500
March 199369.1PoorPoorSatisfactorySatisfactorySD10500
November 198869.1PoorPoorSatisfactorySatisfactorySD10500