NFA 910 (SA 4302) over DUCK RIVER


+36.04267, -87.85362
36°02'34" N, 87°51'13" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NFA 910 (SA 4302) over DUCK RIVER
Structure number:430A3160001
Location:3 M. W. SR 13
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:212.0 ft. [64.6 m]
Total length:749.1 ft. [228.3 m]
Roadway width between curbs:17.7 ft. [5.4 m]
Deck width edge-to-edge:21.3 ft. [6.5 m]
Vertical clearance above deck:13.8 ft. [4.2 m]
Owner:County Highway Agency [02]
Year built:1945
Historic significance:Historical significance is not determinable at this time [4]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:550 [as of 2019]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection has failed. River control devices have been destroyed. Stream bed aggradation, degradation or lateral movement has changed the channel to now threaten the bridge and/or approach roadway. [3]
Scour condition:Bridge is scour critical; field review indicates that extensive scour has occurred at bridge foundations. [2]
Sufficiency rating:45.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$9,604,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018PoorFairPoorSerious55045.0
April 2016PoorFairPoorSerious5504.5
July 2014PoorFairPoorSerious5504.5
August 2012PoorFairPoorSerious5504.5
August 2010PoorFairPoorFair55029.4
September 2008PoorSatisfactoryPoorSatisfactory55030.6
October 2006PoorSatisfactoryPoorSatisfactory60030.2
January 2005PoorSatisfactoryPoorSatisfactory60030.2
February 2003PoorSatisfactoryPoorSatisfactory60030.2
April 2001FairSatisfactorySatisfactorySatisfactory58050.6
June 1999FairSatisfactorySatisfactoryGood48050.9
August 1997FairFairSatisfactorySatisfactory62051.5
May 1995FairFairSatisfactorySatisfactory34048.2
June 1993FairFairSatisfactorySatisfactory34048.2
October 1991FairFairSatisfactorySatisfactory48047.8