National Bridge Inventory: Florida

  • Of the 12,592 bridges in the state, 408, or 3.2 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 233 bridges classified as structurally deficient in 2016.
  • The deck area of structurally deficient bridges accounts for 1.4 percent of total deck area on all structures.
  • 7 of the structurally deficient bridges are on the Interstate Highway System. A total of 94.4 percent of the structurally deficient bridges are not on the National Highway System, which includes the Interstate and other key roads linking major airports, ports, rail and truck terminals.
  • 955 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 1,003 bridges at an estimated cost of $2.7 billion.
  • This compares to 878 bridges that needed work in 2016.

County Year Built Daily Crossings Type of Bridge Location
Broward 1973 102,000 Urban Interstate NB I-95 (SR-9) over Hillsboro Canal
Broward 1973 102,000 Urban Interstate SB I-95 (SR-9) over Hillsboro Canal
Okaloosa 1964 51,500 Urban other principal arterial US98 SR30 over ICWW & Brooks St.
St. Johns 1958 49,500 Urban other principal arterial US-1 (SR-5) over Oyster Creek
Escambia 1961 45,494 Urban Interstate I10 Sr8 over US90A SR10
Lee 1965 43,000 Urban collector Del Prado Blvd NB over Lido Canal
Duval 1967 43,000 Rural Interstate I-95 NB (SR-9) over Nassau River
Duval 1967 43,000 Rural Interstate I-95 SB (SR-9) over Nassau River
Miami-Dade 1943 34,503 Urban minor arterial Sw 42nd Avenue over Coral Gables Canal
Pinellas 1961 33,500 Urban collector 40th Avenue NE over Placido Bayou
Bradford 1948 32,000 Urban other principal arterial US-301 (SR-2) over Alligator Creek
Duval 1957 30,500 Urban minor arterial SR-115 over Trout River
Duval 1960 30,000 Urban minor arterial SR-13 over New Rose Creek
Broward 1970 29,471 Urban minor arterial NW 31St Ave over C-13 Canal
Miami-Dade 1960 28,291 Urban minor arterial NW 67th Avenue over Biscayne Canal (C-8)
Madison 1973 28,000 Rural Interstate I-10 (SR-8) over Piddlin Creek
Pinellas 1961 27,413 Urban minor arterial SR-679 over Boca Ciega Bay
Gadsden 1975 26,500 Rural Interstate I10 Sr8 over Mill Dam
Miami-Dade 1964 25,364 Urban minor arterial NW 32nd Avenue over Little River Canal (C-7)
Miami-Dade 1966 24,725 Urban minor arterial NW 22nd Ave. over Little River Canal (C7)
Escambia 1965 24,500 Urban minor arterial Sr289 over Carpenters Creek
Sarasota 1990 24,000 Urban collector Tuttle Ave. over Phillippi Creek
Miami-Dade 1963 23,500 Urban minor arterial Kane Concourse over Indian Creek
Monroe 1985 23,500 Urban other principal arterial US-1 SB (9086) over Cow Key Channel
Monroe 1978 23,500 Urban other principal arterial US-1 NB (9125) 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 571 769,335 14,730,840 4 7,510 140,500
Rural arterial 1,022 1,279,703 9,898,703 3 1,832 15,600
Rural minor arterial 573 639,805 3,613,005 20 24,701 87,341
Rural major collector 746 511,356 2,259,115 38 9,777 73,662
Rural minor collector 528 217,442 984,918 34 9,317 43,850
Rural local road 1,491 364,778 1,391,125 172 54,594 64,770
Urban Interstate 1,333 4,193,033 83,192,330 3 4,341 249,494
Urban freeway/expressway 1,354 2,780,191 53,578,609 2 2,548 2,002
Urban other principal arterial 1,431 3,401,226 38,262,822 16 49,638 365,950
Urban minor arterial 1,122 2,291,327 20,775,383 31 40,601 527,118
Urban collector 1,173 850,530 11,022,938 37 20,530 315,068
Urban local road 1,248 596,422 4,435,294 48 17,199 118,019
Total 12,592 17,895,147 244,145,082 408 242,587 2,003,374
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 120 $218 459,684 118,131
Widening & rehabilitation 62 $60 591,340 52,205
Rehabilitation 401 $396 2,177,691 300,990
Deck rehabilitation/replacement 4 $9 143,870 7,428
Other structural work 416 $1,998 9,629,973 2,086,132
Total 1,003 $2,682 13,002,558 2,564,886

About the data:

Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on March 11, 2021. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections. Cost estimates were downloaded by ARTBA on March 11, 2021.

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 2019 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 repair cost estimate is supplied by the bridge owner or the bridge is classified as structurally deficient. Please note that for a few states, the number of bridges needing to be repaired can vary significantly from year to year, and reflects the data entered by the state.

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.

Compared to 47 in 2019

in the nation in % of structurally deficient bridges

1. West Virginia 21.2%
44. District of Columbia 3.3%
45. Florida 3.2%
46. Georgia 2.5%

Compared to 35 in 2019

in the nation in # of structurally deficient bridges

1. Iowa 4,571
31. Washington 416
32. Florida 408
33. Oregon 395

Compared to 49 in 2019

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 21.0%
49. Texas 1.0%
50. Florida 1.0%
51. Nevada 1.0%
Full State Ranking


  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on March 11, 2021. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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