NW 17th Avenue over Miami River


+25.78861, -80.23111
25°47'19" N, 80°13'52" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:NW 17th Avenue over Miami River
Structure number:874161
Location:0.2 Mile North of SR 836
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:132.9 ft. [40.5 m]
Total length:393.1 ft. [119.8 m]
Roadway width between curbs:47.2 ft. [14.4 m]
Deck width edge-to-edge:60.0 ft. [18.3 m]
Vertical clearance below bridge:12.8 ft. [3.9 m]
Owner:County Highway Agency [02]
Year built:1928
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:Open Grating [3]

Latest Available Inspection: January 2016 

Status:Open, no restriction [A]
Average daily traffic:21,073 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 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]
Water adequacy appraisal:Better than present minimum criteria [7]
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 but re-evaluation of design suggested [4]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:39.5 tons [35.9 metric tons]
Inventory rating:23.5 tons [21.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:44.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
January 201644.2Functionally obsoleteFairFairSatisfactory21073
January 201456.4Functionally obsoleteSatisfactorySatisfactorySatisfactory21073
January 201256.4Functionally obsoleteSatisfactorySatisfactorySatisfactory21073
January 201056.4Functionally obsoleteSatisfactorySatisfactorySatisfactory21073
April 200844.2Functionally obsoleteFairFairSatisfactory21073
November 20074.0Structurally deficientPoorSeriousSatisfactory21073
November 20064.0Structurally deficientPoorSeriousSatisfactory21073
January 200618.4Functionally obsoleteFairFairSatisfactory21073
January 200418.4Functionally obsoleteFairFairSatisfactory21073
March 200253.6Functionally obsoleteFairFairSatisfactory21073
September 200051.4Structurally deficientPoorFairSatisfactory21073
October 199951.4Structurally deficientPoorFairSatisfactory21073
July 199752.0Structurally deficientPoorFairSatisfactory20080
August 199531.4Structurally deficientPoorFairSatisfactory19513
February 199467.9Functionally obsoleteFairSatisfactorySatisfactory19513
December 199254.0Structurally deficientPoorFairSatisfactory19320
October 199146.8Structurally deficientSatisfactoryPoorGood19320