US-ALT-1 (SR-115) over US-17 (SR-5)


+30.35611, -81.65389
30°21'22" N, 81°39'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-ALT-1 (SR-115) over US-17 (SR-5)
Structure number:720036
Location:US-ALT-1 / MAIN ST.
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:75.1 ft. [22.9 m]
Total length:148.0 ft. [45.1 m]
Roadway width between curbs:97.8 ft. [29.8 m]
Deck width edge-to-edge:103.4 ft. [31.5 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2000
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:40,500 [as of 2014]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
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]
Operating rating:90.9 tons [82.6 metric tons]
Inventory rating:54.5 tons [49.5 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201598.0FairSatisfactoryGoodVery Good-40500
March 201398.0FairSatisfactoryGoodVery Good-42000
March 201198.0FairSatisfactoryGoodVery Good-45000
March 200998.0FairSatisfactoryGoodVery Good-48500
March 200798.0GoodGoodGoodVery Good-49500
March 200598.0GoodGoodGoodVery Good-52000
March 200398.0GoodGoodGoodVery Good-58000
April 200198.0GoodGoodGoodVery Good-53500
April 199989.0GoodGoodGoodGood-50500
April 199787.0GoodGoodGoodGoodFO59500
April 199582.0GoodGoodGoodGoodFO61500
March 199382.0GoodGoodGoodVery GoodFO55990
May 199182.0GoodGoodGoodVery GoodFO55130

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Girder/Beamlinear ft.2,5202,4853500
Reinforced Concrete Decksq. ft.15,29612,6962,60000
Reinforced Concrete Abutmentlinear ft.207202500
Reinforced Concrete Pileeach1211100
Reinforced Concrete Pier Caplinear ft.203203000
Pourable Jointlinear ft.41331210100
Elastomeric Bearingeach96168000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.444444000