2031 Mont Alto over TRIB CONOCOCHEAGUE


+39.89229, -77.56095
39°53'32" N, 77°33'39" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:2031 Mont Alto over TRIB CONOCOCHEAGUE
Structure number:000000000017529
Old structure number:282031009021240 (from 1992 edition)
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:29.9 ft. [9.1 m]
Total length:30.8 ft. [9.4 m]
Roadway width between curbs:28.5 ft. [8.7 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Skew angle:15°
Owner:State Highway Agency [01]
Year built:1926
Year reconstructed:2010
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Main span material:Prestressed concrete [5]
Main span design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:3,394 [as of 2018]
Truck traffic:9% 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]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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 determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:81.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$287,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018GoodGoodVery GoodGood339481.8
June 2016GoodGoodVery GoodGood341981.8
June 2014GoodVery GoodVery GoodGood340981.8
June 2012GoodVery GoodVery GoodGood414481.5
June 2010PoorPoorPoorSatisfactory403350.5
July 2008PoorPoorPoorSatisfactory412050.3
August 2006PoorPoorPoorSatisfactory417750.2
August 2004PoorPoorPoorSatisfactory399550.2
September 2002PoorPoorPoorSatisfactory393650.2
August 2000FairFairFairGood363067.2
June 1998FairFairFairVery Good354169.2
June 1996PoorFairPoorVery Good338153.0
June 1994FairFairFairVery Good277969.7
June 1992FairFairFairVery Good271969.8
June 1990FairFairFairVery Good261764.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.155155000
Reinforced Concrete Decksq. ft.992992000
Reinforced Concrete Abutmentlinear ft.7066400
Elastomeric Bearingeach1010000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6262000