I-77 NBL over S-129 & SCL RR


+33.92890, -81.05647
33°55'44" N, 81°03'23" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-77 NBL over S-129 & SCL RR
Structure number:000000000007910
Old structure number:003210007710100 (from 1992 edition)
Location:0.10 MI N OF I-26
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:71.9 ft. [21.9 m]
Total length:258.9 ft. [78.9 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:71.2 ft. [21.7 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1985
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:2
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: November 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:38,600 [as of 2017]
Truck traffic:12% 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]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:92.3
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017GoodGoodGoodGood3860092.3
December 2015GoodGoodGoodGood3075093.1
December 2013GoodGoodGoodGood3365092.8
December 2011GoodGoodVery GoodGood3395092.7
December 2009GoodGoodVery GoodGood3425092.7
January 2008GoodGoodVery GoodGood3475092.7
January 2006GoodGoodVery GoodGood3220092.9
January 2000GoodGoodVery GoodVery Good2485089.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,5902,5009000
Reinforced Concrete Decksq. ft.18,44118,32481090
Reinforced Concrete Columneach1212000
Reinforced Concrete Pier Caplinear ft.4113951150
Pourable Jointlinear ft.1641400240
Compression Jointlinear ft.164008282
Movable Bearingeach4040000
Fixed Bearingeach3030000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5184724150