+35.32265, -78.64192
35°19'22" N, 78°38'31" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US421N NC55E over BLACK RIVER
Structure number:000000000850049
Location:0.3 MI. W. JCT. SR1719
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:40.0 ft. [12.2 m]
Total length:128.0 ft. [39.0 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:33.5 ft. [10.2 m]
Owner:State Highway Agency [01]
Year built:1957
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 9 / H 10 [1]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:10,000 [as of 2013]
Truck traffic:12% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:67.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018FairFairFairFair1000067.5
February 2016FairFairFairFair1000064.5
February 2014FairFairFairFair1000064.5
February 2012PoorFairPoorGood1000047.9
February 2010PoorSatisfactoryPoorGood1000049.0
June 2008PoorSatisfactoryPoorGood950049.1
April 2006PoorSatisfactoryPoorGood1200047.7
March 2004PoorSatisfactoryPoorGood650047.4
April 2002PoorSatisfactoryPoorGood650047.4
September 1999PoorSatisfactoryPoorGood685049.6
November 1991FairSatisfactoryFairGood625066.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.49637311670
Reinforced Concrete Decksq. ft.4,26304,212510
Reinforced Concrete Abutmentlinear ft.7272000
Prestressed Concrete Pileeach2212910
Reinforced Concrete Pier Caplinear ft.128128000
Pourable Jointlinear ft.132132000
Movable Bearingeach120903
Steel Protective Coatingsq. ft.1200012
Fixed Bearingeach1201200
Steel Protective Coatingsq. ft.1200012
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.258025710