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MIA Off Ramp 4 over MIA Interchange

Map

Coordinates:
+25.79278, -80.26500
25°47'34" N, 80°15'54" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MIA Off Ramp 4 over MIA Interchange
Structure number:874639
Location:Ramp to SR 836 & 953
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Local (Urban) [19]
Length of largest span:216.9 ft. [66.1 m]
Total length:1248.4 ft. [380.5 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:43.0 ft. [13.1 m]
Vertical clearance below bridge:18.0 ft. [5.5 m]
Owner:State Toll Authority [31]
Year built:2008
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:6
Main spans material:Steel continuous [4]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:5,225 [as of 2005]
Truck traffic:6% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Superior to present desirable criteria [9]
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: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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:61.1 tons [55.5 metric tons]
Inventory rating:36.6 tons [33.3 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201598.0GoodVery GoodVery GoodVery Good-5225
November 201398.0GoodVery GoodVery GoodVery Good-5225
May 201298.0GoodVery GoodVery GoodVery Good-5225
June 201098.0GoodVery GoodVery GoodVery Good-5225
July 200898.0GoodExcellentExcellentExcellent-5225