Cr-621/Z-B/L-0.22 over Alligator Bayou


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Cr-621/Z-B/L-0.22 over Alligator Bayou
Structure number:000000000018090
Location:.2 Miles North Of Sh 131
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:27.6 ft. [8.4 m]
Total length:44.0 ft. [13.4 m]
Roadway width between curbs:18.0 ft. [5.5 m]
Deck width edge-to-edge:18.0 ft. [5.5 m]
Owner:County Highway Agency [02]
Year built:1950
Year reconstructed:1984
Historic significance:Historical significance is not determinable at this time [4]
Main span material:Steel [3]
Main span design:Orthotropic [08]
Deck type:Steel plate (includes orthotropic) [5]
Wearing surface:Other [9]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:141 [as of 1987]
Truck traffic:1% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:75.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$235,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017GoodGoodGoodGood14175.1
July 2015GoodGoodGoodGood14155.9
July 2014GoodGoodGoodGood14155.9
July 2013GoodGoodGoodGood14155.9
August 2012GoodGoodGoodGood14155.9
August 2011GoodGoodGoodGood14155.9
August 2010GoodGoodGoodGood14155.9
August 2009GoodGoodGoodGood14155.9
July 2008GoodGoodGoodGood14155.9
July 2007GoodGoodGoodGood14155.9
August 2006GoodGoodGoodGood14155.9
August 2005GoodGoodGoodGood14155.9
September 2004GoodGoodGoodGood14155.9
July 2003GoodGoodGoodGood14155.7
July 2002GoodGoodGoodGood14155.7
July 2001GoodGoodGoodGood14155.7
June 2000GoodGoodGoodGood14155.7
April 1999GoodGoodGoodGood14155.7
April 1998GoodGoodGoodGood14155.7
June 1997GoodGoodGoodGood14155.7
May 1996GoodGoodGoodGood14148.3
May 1995GoodGoodGoodGood14148.2
May 1994GoodGoodGoodVery Good14148.2
May 1993GoodGoodGoodVery Good14148.2
May 1992GoodGoodGoodVery Good14155.3
April 1991GoodVery GoodVery GoodVery Good14166.0