+32.28626, -90.21882
32°17'11" N, 90°13'08" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 20 over LYNCH CREEK
Structure number:11000200250439A
Location:2.8 MI E SR 18
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:69.9 ft. [21.3 m]
Total length:212.9 ft. [64.9 m]
Roadway width between curbs:50.9 ft. [15.5 m]
Deck width edge-to-edge:53.8 ft. [16.4 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1968
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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2014 

Status:Open, no restriction [A]
Average daily traffic:37,000 [as of 2012]
Truck traffic:13% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Operating rating:103.8 tons [94.4 metric tons]
Inventory rating:66.4 tons [60.4 metric tons]
Sufficiency rating:88.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201488.1Not deficientFairVery GoodVery Good37000
August 201286.7Not deficientFairVery GoodVery Good64500
July 201086.7Not deficientFairVery GoodVery Good64500
June 200885.9Not deficientGoodVery GoodVery Good62500
June 200689.8Not deficientGoodVery GoodVery Good43500
October 200489.6Not deficientGoodVery GoodVery Good48500
August 200290.0Not deficientGoodVery GoodVery Good40000
September 200088.9Not deficientGoodVery GoodVery Good31000
September 199888.9Not deficientGoodVery GoodVery Good31000
November 199688.9Not deficientVery GoodVery GoodVery Good31000
January 199589.1Not deficientVery GoodVery GoodVery Good35500
April 199189.5Not deficientVery GoodVery GoodVery Good30500