SW 1 St over Miami River


+25.77278, -80.20028
25°46'22" N, 80°12'01" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SW 1 St over Miami River
Structure number:870660
Location:800ft West of I-95
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:156.5 ft. [47.7 m]
Total length:650.6 ft. [198.3 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:62.3 ft. [19.0 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:1929
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
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]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,100 [as of 2016]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 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 replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Superior to present desirable criteria [9]
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 foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:50.5 tons [45.9 metric tons]
Inventory rating:36.3 tons [33.0 metric tons]
Sufficiency rating:57.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$373,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201657.1FairSatisfactoryFairFairFO8100
September 201447.2PoorSatisfactoryFairPoorSD8300
September 201247.1PoorSatisfactoryFairPoorSD8400
September 201056.7FairSatisfactoryFairFairFO9900
August 200956.8FairSatisfactoryFairFairFO9400
October 200867.9FairSatisfactorySatisfactorySatisfactoryFO11000
October 200668.7FairSatisfactorySatisfactorySatisfactoryFO6600
October 200468.6FairSatisfactorySatisfactorySatisfactoryFO7500
November 200272.4FairSatisfactorySatisfactorySatisfactoryFO9100
April 200171.8GoodVery GoodGoodGoodFO12000
December 199874.8GoodVery GoodGoodGoodFO6700
May 199872.8GoodVery GoodGoodGoodFO6700
February 199671.4GoodVery GoodGoodVery GoodFO13249
August 199359.9FairSatisfactorySatisfactoryFairFO13249
July 199161.1FairSatisfactorySatisfactoryFairFO8298