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US 278 EBL over MACKAY CREEK

Map

Coordinates:
+32.23051, -80.79184
32°13'50" N, 80°47'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 278 EBL over MACKAY CREEK
Structure number:000000000002297
Old structure number:000720027820300 (from 1992 edition)
Location:@ HILTON HEAD ISLAND
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:69.9 ft. [21.3 m]
Total length:2190.1 ft. [667.5 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:39.4 ft. [12.0 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Owner:State Highway Agency [01]
Year built:1956
Year reconstructed:1984
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 13.5 / HS 15 [3]
Main span material:Steel [3]
Main span 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: October 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:27,350 [as of 2015]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:72.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,573,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2016PoorSatisfactoryPoorPoor2735072.7
October 2014PoorSatisfactoryPoorPoor2610069.1
November 2012PoorSatisfactoryPoorPoor2495069.3
November 2010PoorSatisfactoryPoorPoor2380069.4
December 2008PoorSatisfactoryPoorPoor2395069.4
November 2006PoorGoodSatisfactoryPoor2500069.3
October 2004PoorGoodSatisfactoryPoor2550069.2
July 1998FairVery GoodSatisfactoryGood1925097.9
September 1990GoodVery GoodGoodGood1009891.7