Share:

I20W I55S over GALLATIN ST LYNCH CK

Map

Coordinates:
+32.27622, -90.19145
32°16'34" N, 90°11'29" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I20W I55S over GALLATIN ST LYNCH CK
Structure number:110002002504580
Location:0.8 MI E I 55S/ I 20W
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:80.1 ft. [24.4 m]
Total length:880.0 ft. [268.2 m]
Roadway width between curbs:50.9 ft. [15.5 m]
Deck width edge-to-edge:53.8 ft. [16.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1966
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:3
Main spans material:Concrete continuous [2]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:55,000 [as of 2015]
Truck traffic:13% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:83.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016FairSatisfactorySatisfactoryVery Good5500083.3
August 2014FairSatisfactorySatisfactoryVery Good5650086.1
August 2012FairSatisfactorySatisfactoryVery Good5500086.2
July 2010GoodGoodVery GoodVery Good6700085.5
June 2008GoodGoodVery GoodVery Good6250083.8
June 2006GoodGoodVery GoodVery Good5450087.2
October 2004GoodGoodVery GoodVery Good5750073.4
September 2002GoodGoodVery GoodVery Good6000086.9
September 2000GoodGoodVery GoodVery Good4850085.0
September 1998GoodGoodVery GoodVery Good4850085.0
February 1997GoodGoodVery GoodVery Good4850085.0
February 1995GoodGoodVery GoodVery Good4030084.6
April 1991GoodGoodVery GoodVery Good3664084.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Closed Web/Box Girderlinear ft.1,4011,401000
Prestressed Concrete Girder/Beamlinear ft.5,3185,318000
Deck
Reinforced Concrete Decksq. ft.38,73938,739000
Wearing Surfacessq. ft.47,34644,861002,485
Reinforced Concrete Top Flangesq. ft.8,6098,609000
Substructure
Prestressed Concrete Columneach8888000
Reinforced Concrete Abutmentlinear ft.143143000
Reinforced Concrete Pier Caplinear ft.884876800
Joints
Open Jointlinear ft.866866000
Assembly without Seal Jointlinear ft.52270250
Bearings
Elastomeric Bearingeach294294000
Movable Bearingeach1401400
Steel Protective Coatingsq. ft.1400140
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,7591,759000
Steel Protective Coatingsq. ft.1,7591,759000
Reinforced Concrete Bridge Raillinear ft.1,7591,759000