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:60.0 ft. [18.3 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 2014 

Status:Open, no restriction [A]
Average daily traffic:8,300 [as of 2014]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 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: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]
Evaluation:Structurally deficient [1]
Sufficiency rating:47.2
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$373,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201447.2Structurally deficientSatisfactoryFairPoor8300
September 201247.1Structurally deficientSatisfactoryFairPoor8400
September 201056.7Functionally obsoleteSatisfactoryFairFair9900
August 200956.8Functionally obsoleteSatisfactoryFairFair9400
October 200867.9Functionally obsoleteSatisfactorySatisfactorySatisfactory11000
October 200668.7Functionally obsoleteSatisfactorySatisfactorySatisfactory6600
October 200468.6Functionally obsoleteSatisfactorySatisfactorySatisfactory7500
November 200272.4Functionally obsoleteSatisfactorySatisfactorySatisfactory9100
April 200171.8Functionally obsoleteVery GoodGoodGood12000
December 199874.8Functionally obsoleteVery GoodGoodGood6700
May 199872.8Functionally obsoleteVery GoodGoodGood6700
February 199671.4Functionally obsoleteVery GoodGoodVery Good13249
August 199359.9Functionally obsoleteSatisfactorySatisfactoryFair13249
July 199161.1Functionally obsoleteSatisfactorySatisfactoryFair8298