S-10-20 over STONO RIVER


+32.78548, -80.10743
32°47'08" N, 80°06'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:S-10-20 over STONO RIVER
Structure number:000000000002668
Old structure number:001070002000300 (from 1992 edition)
Location:9.5 MI W CHAS
Purpose:Carries highway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:299.9 ft. [91.4 m]
Total length:2802.0 ft. [854.0 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:57.1 ft. [17.4 m]
Vertical clearance below bridge:62.3 ft. [19.0 m]
Owner:State Highway Agency [01]
Year built:2004
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 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:26,100 [as of 2017]
Truck traffic:6% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Superior to present desirable criteria [9]
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:85.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017GoodGoodGoodGood2610085.0
June 2015GoodGoodVery GoodVery Good2050085.0
July 2013GoodGoodVery GoodVery Good2170085.0
July 2011GoodGoodVery GoodVery Good2150085.0
August 2009GoodGoodVery GoodVery Good2050085.0
July 2007GoodVery GoodVery GoodVery Good2480085.0
January 2005GoodVery GoodVery GoodVery Good2090085.0
October 1998PoorGoodPoorSatisfactory1600023.0
April 1991FairGoodSatisfactoryGood1050145.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.3,83203,83200
Steel Protective Coatingsq. ft.10,75310,753000
Prestressed Concrete Girder/Beamlinear ft.12,215012,21500
Reinforced Concrete Decksq. ft.159,7140159,71400
Reinforced Concrete Columneach3803800
Reinforced Concrete Pier Caplinear ft.1,19501,19500
Open Jointlinear ft.228022800
Elastomeric Bearingeach204020400
Pot Bearingeach2002000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5,60405,60400