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US 17 ALT over EDISTO RIVER

Map

Coordinates:
+32.92691, -80.39830
32°55'37" N, 80°23'54" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 17 ALT over EDISTO RIVER
Structure number:000000000006087
Old structure number:001820001707100 (from 1992 edition)
Location:14MI S SUMR'VL
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:50.9 ft. [15.5 m]
Total length:777.9 ft. [237.1 m]
Roadway width between curbs:49.9 ft. [15.2 m]
Deck width edge-to-edge:51.8 ft. [15.8 m]
Owner:State Highway Agency [01]
Year built:1972
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:3
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: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:9,000 [as of 2017]
Truck traffic:6% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:81.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairFairSatisfactorySatisfactory900081.5
June 2016FairFairSatisfactorySatisfactory690081.5
June 2014FairSatisfactorySatisfactorySatisfactory770077.6
July 2012FairSatisfactorySatisfactorySatisfactory730077.8
June 2010FairSatisfactorySatisfactorySatisfactory730077.8
August 2008FairSatisfactorySatisfactorySatisfactory770077.6
May 2006FairSatisfactorySatisfactorySatisfactory910076.7
May 2004GoodGoodGoodGood920078.6
March 1998GoodGoodGoodGood670078.4
March 1990GoodVery GoodVery GoodVery Good257780.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,37701,37700
Deck
Reinforced Concrete Decksq. ft.7,95607,95600
Substructure
Reinforced Concrete Columneach88000
Prestressed Concrete Pileeach265265000
Reinforced Concrete Pier Caplinear ft.1,50801,496120
Joints
Pourable Jointlinear ft.1,30001,30000
Bearings
Elastomeric Bearingeach2626000
Movable Bearingeach2718900
Fixed Bearingeach99000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,55601,55600
Deck
Reinforced Concrete Slabsq. ft.32,500032,49550