SR-A1A over Hillsboro Inlet


+26.26144, -80.08317
26°15'41" N, 80°04'59" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR-A1A over Hillsboro Inlet
Structure number:860011
Location:.8mi North of SR 844
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Collector (Urban) [17]
Length of largest span:74.5 ft. [22.7 m]
Total length:351.4 ft. [107.1 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:38.4 ft. [11.7 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Owner:State Highway Agency [01]
Year built:1966
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:7,700 [as of 2018]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:76.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairSatisfactoryGoodGood770076.7
August 2016FairSatisfactoryGoodGood930076.4
October 2014FairSatisfactoryGoodGood990076.3
October 2012FairSatisfactoryGoodGood890076.4
November 2010FairSatisfactoryGoodGood1020076.2
November 2009FairSatisfactoryGoodGood1420074.8
November 2008FairSatisfactoryGoodGood1540074.6
November 2006FairSatisfactoryGoodGood1300075.0
November 2004FairSatisfactoryGoodGood1350074.9
September 2002FairSatisfactoryGoodGood990070.4
August 2001GoodGoodVery GoodVery Good900071.6
September 2000GoodGoodGoodGood930066.1
September 1998GoodGoodGoodGood760056.6
September 1996GoodGoodGoodGood890054.9
May 1994GoodGoodGoodGood310067.9
March 1992GoodGoodGoodGood692768.5
March 1990FairGoodSatisfactoryGood794967.5