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US 21 over JOHNSON CREEK

Map

Coordinates:
+32.39150, -80.43915
32°23'29" N, 80°26'21" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 21 over JOHNSON CREEK
Structure number:000000000000924
Old structure number:000720002100100 (from 1992 edition)
Location:13.8 MI SE BEAUFORT
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:54.1 ft. [16.5 m]
Total length:650.0 ft. [198.1 m]
Roadway width between curbs:43.0 ft. [13.1 m]
Deck width edge-to-edge:45.9 ft. [14.0 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Owner:State Highway Agency [01]
Year built:2006
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:12
Main spans material:Prestressed concrete continuous [6]
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:Good
Status:Open, no restriction [A]
Average daily traffic:4,300 [as of 2017]
Truck traffic:5% 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:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
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:100.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018GoodGoodGoodGood4300100.0
September 2016GoodGoodGoodGood4100100.0
October 2014GoodGoodVery GoodVery Good410080.0
November 2012GoodGoodVery GoodVery Good420080.0
October 2010GoodGoodVery GoodVery Good440080.0
November 2008GoodGoodVery GoodVery Good440080.0
December 2006GoodVery GoodVery GoodVery Good220080.0
December 2004PoorSatisfactoryPoorSatisfactory410019.5
July 1998FairGoodFairSatisfactory450034.7
September 1990GoodGoodGoodGood221044.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.3,9003,900000
Deck
Reinforced Concrete Decksq. ft.29,900029,90000
Substructure
Prestressed Concrete Pileeach7878000
Reinforced Concrete Pier Caplinear ft.598598000
Joints
Compression Jointlinear ft.4600460
Bearings
Elastomeric Bearingeach1313000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,3001,2900100