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I 20 over VALLEY ST/LYNCH CREEK

Map

Coordinates:
+32.28267, -90.21356
32°16'58" N, 90°12'49" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 20 over VALLEY ST/LYNCH CREEK
Structure number:11000200250441A
Location:3.2 MI E SR 18
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:100.1 ft. [30.5 m]
Total length:1286.2 ft. [392.0 m]
Roadway width between curbs:60.4 ft. [18.4 m]
Deck width edge-to-edge:63.7 ft. [19.4 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:36°
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:20
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:45,000 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:74.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairGoodFairVery Good4500074.7
August 2016FairGoodFairVery Good3700075.6
August 2015FairGoodFairVery Good5500073.5
August 2014FairGoodFairVery Good5500076.7
July 2013FairGoodFairVery Good5500076.7
August 2012FairGoodFairVery Good5500076.7
August 2010GoodGoodVery GoodVery Good3800088.1
June 2008GoodGoodVery GoodVery Good3850088.0
June 2006GoodGoodVery GoodVery Good4350088.8
October 2004GoodGoodVery GoodVery Good4850090.6
August 2002GoodGoodVery GoodVery Good4000089.0
September 2000GoodGoodVery GoodVery Good3100087.8
September 1998GoodGoodVery GoodVery Good3100087.8
April 1997GoodVery GoodVery GoodVery Good3100089.9
January 1995GoodVery GoodVery GoodVery Good3550090.2
April 1991GoodVery GoodVery GoodVery Good3050090.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.10,30810,17375600
Steel Protective Coatingsq. ft.186,72700186,622105
Deck
Reinforced Concrete Decksq. ft.81,86081,23063000
Wearing Surfacessq. ft.81,86081,860000
Substructure
Reinforced Concrete Columneach148148000
Reinforced Concrete Abutmentlinear ft.210210000
Reinforced Concrete Pier Caplinear ft.1,2701,2205000
Joints
Strip Seal Jointlinear ft.8638490014
Bearings
Elastomeric Bearingeach104104000
Movable Bearingeach2181965170
Steel Protective Coatingsq. ft.218000218
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,5722,571100