National Bridge Inventory: Florida

  • Of the 12,435 bridges in the state, 328, or 2.6 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 219 bridges classified as structurally deficient in 2014.
  • 5 of the structurally deficient bridges are on the Interstate Highway System.
  • 927 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 962 bridges at an estimated cost of $2.0 billion.
  • This compares to 898 bridges that needed work in 2014.

County Year Built Daily Crossings Type of Bridge Location
Escambia 1960 54,156 Urban other principal arterial Pensacola Bay Bridge
Broward 1975 53,500 Urban other principal arterial Oakland Park Blvd. over Canal C-13
Okaloosa 1964 51,000 Urban other principal arterial US98 SR30 over ICWW & Brooks St.
St. Johns 1958 47,500 Urban other principal arterial US-1 (SR-5) over Oyster Creek
Duval 1967 39,250 Rural Interstate I-95 NB (SR-9) over Nassau River
Duval 1967 39,250 Rural Interstate I-95 SB (SR-9) over Nassau River
Pinellas 1961 32,500 Urban collector 40th Avenue NE over Placido Bayou
Bradford 1948 29,500 Urban other principal arterial US-301 (SR-2) over Alligator Creek
Duval 1957 29,000 Urban minor arterial SR-115 over Trout River
Palm Beach 1975 28,500 Urban minor arterial 10th Ave. North over I 95 SR 9
Miami-Dade 1960 28,291 Urban minor arterial NW 67th Avenue over Biscayne Canal (C-8)
Brevard 1982 27,000 Urban minor arterial SR-507 over SR-507
Escambia 1965 26,500 Urban minor arterial Sr289 over Carpenters Creek
Palm Beach 1956 26,500 Urban minor arterial US-1 (SR-5) over Earman River (C-17)
Volusia 1944 26,000 Urban other principal arterial US-92 over Little Haw Creek
Duval 1961 25,547 Urban Interstate I-10 WB (SR-8) over CSXrr
Madison 1973 25,500 Rural Interstate I-10 (SR-8) over Piddlin Creek
Miami-Dade 1966 24,725 Urban minor arterial NW 22nd Ave. over Little River Canal (C7)
Miami-Dade 1971 22,750 Urban other principal arterial Sr934 WB (870550) over East Biscayne Bay
Miami-Dade 1973 22,750 Urban other principal arterial Sr934 EB (8783) over West Biscayne Bay
Miami-Dade 1971 22,750 Urban other principal arterial Sr934 WB (870549) over West Biscayne Bay
Miami-Dade 1963 20,849 Urban minor arterial Caribbean Blvd. over Bel Aire Canal C-1-N
Bay 1965 20,500 Urban other principal arterial US98 SR30 over St. Andrews Bay (Icww)
Monroe 1985 20,500 Urban other principal arterial US-1 (SR-5) over Cow Key Channel
Monroe 1978 20,500 Urban other principal arterial US-1 (SR 5) NB over Cow Key Channel
Type of Bridge Number of Bridges Area of All Bridges
(sq. meters)
Daily Crossings on All Bridges Number of Structurally Deficient Bridges Area of Structurally Deficient Bridges
(sq. meters)
Daily Crossings on Structurally Deficient Bridges
Rural Interstate 570 764,645 13,838,810 3 7,305 104,000
Rural arterial 1,007 1,236,385 9,278,390 2 1,262 12,900
Rural minor arterial 600 646,595 3,575,614 14 17,848 62,219
Rural major collector 780 511,101 2,203,411 32 8,617 44,319
Rural minor collector 539 214,846 978,156 30 8,153 36,144
Rural local road 1,497 341,535 1,393,940 166 45,596 46,040
Urban Interstate 1,296 4,063,676 77,067,932 2 2,632 39,797
Urban freeway/expressway 1,320 2,679,300 50,534,231 0 0 0
Urban other principal arterial 1,389 3,437,689 36,324,629 18 138,391 470,856
Urban minor arterial 1,113 2,251,315 19,853,833 16 29,854 308,566
Urban collector 1,103 801,679 10,134,683 18 12,504 115,740
Urban local road 1,221 567,448 4,427,224 27 8,232 82,804
Total 12,435 17,516,213 229,610,853 328 280,394 1,323,385
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 149 $281 567,307 208,049
Widening & rehabilitation 61 $27 590,043 47,153
Rehabilitation 312 $80 1,497,413 261,899
Deck rehabilitation/replacement 3 $2 134,900 4,289
Other structural work 437 $1,645 10,000,129 2,137,451
Total 962 $2,035 12,789,792 2,658,840

About the data:

Data from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), released March 15, 2019. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

Effective January 1, 2018, FHWA changed the definition of structurally deficient as part of the final rule on highway and bridge performance measures, published May 20, 2017 pursuant to the 2012 federal aid highway bill Moving Ahead for Progress in the 21st Century Act (MAP-21). Two measures that were previously used to classify bridges as structurally deficient are no longer used. This includes bridges where the overall structural evaluation was rated in poor or worse condition, or where the adequacy of waterway openings was insufficient.

The new definition limits the classification to bridges where one of the key structural elements—the deck, superstructure, substructure or culverts, are rated in poor or worse condition. During inspection, the conditions of a variety of bridge elements are rated on a scale of 0 (failed condition) to 9 (excellent condition). A rating of 4 is considered “poor” condition.

Cost estimates have been derived by ARTBA, based on 2017 average bridge replacement costs for structures on and off the National Highway System, published by FHWA. Bridge rehabilitation costs are estimated to be 68 percent of replacement costs. A bridge is considered to need repair if the structure has identified repairs as part of the NBI, a cost estimate is supplied by the bridge owner or the bridge is classified as structurally deficient.

Bridges are classified by FHWA into types based on the functional classification of the roadway on the bridge. Interstates comprise routes officially designated by the Secretary of Transportation. Other principal arterials serve major centers of urban areas or provide mobility through rural areas. Freeways and expressways have directional lanes generally separated by a physical barrier, and access/egress points generally limited to on- and off-ramps. Minor arterials serve smaller areas and are used for trips of moderate length. Collectors funnel traffic from local roads to the arterial network; major collectors have higher speed limits and traffic volumes and are longer in length and spaced at greater intervals, while minor collectors are shorter and provide service to smaller communities. Local roads do not carry through traffic and are intended for short distance travel.

from 50 in 2017

in the nation in % of structurally deficient bridges

1. Rhode Island 23.1%
46. District of Columbia 3.3%
47. Florida 2.6%
48. Vermont 2.4%

from 41 in 2017

in the nation in # of structurally deficient bridges

1. Iowa 4,675
34. Washington 382
35. Florida 328
36. Maine 325
Full State Ranking

  • Source: Bridge data is from the 2018 National Bridge Inventory ASCII files, released by the Federal Highway Administration on March 14, 2019. Note that specific conditions on bridges may have changed as a result of recent work. ARTBA is a non-partisan federation whose primary goal is to aggressively grow and protect transportation infrastructure investment to meet the public and business demand for safe and efficient travel.
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