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US 21 SB over BEAUFORT RIVER

Map

Coordinates:
+32.39377, -80.67541
32°23'38" N, 80°40'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 21 SB over BEAUFORT RIVER
Structure number:000000000007425
Old structure number:000720002100500 (from 1992 edition)
Location:SOUTHEAST OF BEAUFORT
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:170.0 ft. [51.8 m]
Total length:4210.2 ft. [1283.2 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:39.7 ft. [12.1 m]
Vertical clearance below bridge:62.3 ft. [19.0 m]
Owner:State Highway Agency [01]
Year built:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:15
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:11,400 [as of 2017]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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: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: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:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:80.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairSatisfactorySatisfactoryFair1140080.4
September 2016FairSatisfactorySatisfactoryFair1140080.4
October 2014FairSatisfactorySatisfactoryFair835080.8
November 2012FairSatisfactorySatisfactoryFair1800075.4
October 2010FairSatisfactorySatisfactoryFair2010074.2
January 2009FairSatisfactorySatisfactorySatisfactory2010086.7
January 2007FairSatisfactorySatisfactorySatisfactory2260085.5
November 2004GoodGoodGoodGood2300085.3
July 1998GoodGoodVery GoodVery Good1540090.0
September 1990FairVery GoodSatisfactoryGood1377447.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.15,80015,00080000
Prestressed Concrete Girder/Beamlinear ft.7,8007,7900100
Deck
Reinforced Concrete Decksq. ft.144,194141,1943,00000
Substructure
Reinforced Concrete Columneach3530050
Reinforced Concrete Pier Walllinear ft.44000
Prestressed Concrete Pileeach3903405000
Reinforced Concrete Pier Caplinear ft.2,8512,35150000
Joints
Compression Jointlinear ft.2,6552,00065500
Open Jointlinear ft.405405000
Bearings
Elastomeric Bearingeach225225000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.8,4206,4202,00000
Deck
Reinforced Concrete Slabsq. ft.100,98098,9802,00000