SR-21 over US-17 (SR-15)


+30.29583, -81.72056
30°17'45" N, 81°43'14" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SR-21 over US-17 (SR-15)
Structure number:720118
Location:BLANDING BLVD./US-17 & RR
Purpose:Carries highway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:75.1 ft. [22.9 m]
Total length:495.1 ft. [150.9 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:67.3 ft. [20.5 m]
Vertical clearance below bridge:17.4 ft. [5.3 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1968
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:8
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: December 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:22,000 [as of 2014]
Truck traffic:3% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:42.0 tons [38.2 metric tons]
Inventory rating:35.5 tons [32.3 metric tons]
Sufficiency rating:95.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201595.9GoodGoodGoodGood-22000
December 201396.9GoodGoodGoodGood-23500
December 201196.8GoodGoodGoodGood-25500
December 200996.8GoodGoodGoodGood-25000
December 200796.7GoodGoodGoodGood-27500
December 200594.0GoodGoodGoodGood-28000
December 200391.0GoodGoodGoodGood-27500
January 200290.8GoodGoodGoodGood-29500
February 200090.9GoodGoodGoodGood-28500
March 199891.1GoodGoodGoodGood-27201
March 199688.0GoodGoodGoodGoodFO27000
March 199488.9GoodGoodGoodGoodFO26360
April 199289.0GoodGoodGoodGoodFO25550
April 199084.4GoodGoodVery GoodVery GoodFO18640