Share:

US 78 over POLK SWAMP

Map

Coordinates:
+33.20020, -80.62963
33°12'01" N, 80°37'47" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 78 over POLK SWAMP
Structure number:000000000001621
Old structure number:001820007800200 (from 1992 edition)
Location:4 MI NW OF ST GEORGE
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:27.9 ft. [8.5 m]
Total length:102.0 ft. [31.1 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Owner:State Highway Agency [01]
Year built:1949
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 continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,900 [as of 2017]
Truck traffic:8% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:50.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$651,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018FairFairFairGood490050.0
April 2016FairFairFairGood360050.4
May 2014FairFairFairGood460050.1
July 2012FairFairFairGood470050.0
June 2010FairFairFairGood460050.1
May 2008FairFairFairGood550049.8
July 2006FairFairFairGood540049.8
April 2004FairSatisfactorySatisfactoryGood580061.1
March 1998FairSatisfactorySatisfactoryVery Good540059.3
March 1990GoodGoodVery GoodVery Good381675.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Substructure
Reinforced Concrete Pileeach2525000
Reinforced Concrete Pier Caplinear ft.145145000
Joints
Pourable Jointlinear ft.8787000
Bearings
Elastomeric Bearingeach55000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.204204000
Deck
Reinforced Concrete Slabsq. ft.2,9582,8660920