Share:

SR-574 (M.L. KING) over HILLSBOROUGH RIVER

Map 

Coordinates:
+27.98139, -82.47667
27°58'53" N, 82°28'36" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:SR-574 (M.L. KING) over HILLSBOROUGH RIVER
Structure number:100500
Location:1.3 MILES WEST OF I-275
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:110.6 ft. [33.7 m]
Total length:872.4 ft. [265.9 m]
Roadway width between curbs:42.3 ft. [12.9 m]
Deck width edge-to-edge:55.4 ft. [16.9 m]
Vertical clearance below bridge:35.8 ft. [10.9 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1960
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans 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: June 2014 

Status:Open, no restriction [A]
Average daily traffic:35,500 [as of 2013]
Truck traffic:3% 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:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:63.9 tons [58.1 metric tons]
Inventory rating:38.4 tons [34.9 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:72.4

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201472.4Functionally obsoleteSatisfactorySatisfactoryGood35500
June 201273.2Functionally obsoleteSatisfactoryGoodGood31000
January 201273.0Functionally obsoleteSatisfactoryGoodGood32000
June 201070.8Functionally obsoleteSatisfactoryGoodGood33000
June 200870.2Functionally obsoleteSatisfactoryGoodGood36500
June 200669.7Functionally obsoleteSatisfactoryGoodGood34000
June 200469.7Functionally obsoleteSatisfactoryGoodGood34000
February 200270.8Functionally obsoleteSatisfactoryGoodGood38500
February 200072.2Functionally obsoleteSatisfactoryGoodGood37000
February 199871.1Functionally obsoleteSatisfactoryGoodGood37000
February 199671.5Functionally obsoleteSatisfactoryGoodGood35000
December 199467.8Functionally obsoleteSatisfactorySatisfactoryGood51370
November 199271.2Functionally obsoleteGoodSatisfactoryGood34247
February 199171.2Functionally obsoleteGoodSatisfactoryGood34247