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SR 12 over GRANICUS BAYOU

Map

Coordinates:
+33.16026, -90.94857
33°09'37" N, 90°56'55" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 12 over GRANICUS BAYOU
Structure number:310001207600790
Location:7.9 MI E SR 1
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:29.9 ft. [9.1 m]
Total length:120.1 ft. [36.6 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 13.5 / HS 15 [3]
Number of main spans:4
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:670 [as of 2013]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:57.6 tons [52.4 metric tons]
Inventory rating:34.5 tons [31.4 metric tons]
Sufficiency rating:86.8
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$474,000,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201686.8FairSatisfactorySatisfactoryGood-670
November 201486.9GoodGoodGoodGood-640
November 201287.0GoodGoodGoodGood-610
November 201087.0GoodGoodGoodGood-610
January 201087.0GoodGoodGoodGood-610
November 200784.8GoodGoodGoodGood-700
January 200684.8GoodGoodGoodGood-700
July 200385.0GoodGoodGoodGood-570
July 200185.0GoodGoodGoodGood-600
July 199984.8GoodGoodGoodGood-670
July 199785.8GoodGoodGoodGood-670
July 199576.3GoodGoodGoodGood-520
September 199376.4GoodGoodGoodGood-500
July 199176.3GoodGoodGoodVery Good-540
July 198978.2GoodGoodGoodVery Good-600