National Bridge Inventory: Oklahoma



  • Of the 23,220 bridges in the state, 2,296, or 9.9 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is down from 2,684 bridges classified as structurally deficient in 2017.
  • The deck area of structurally deficient bridges accounts for 4.5 percent of total deck area on all structures.
  • 12 of the structurally deficient bridges are on the Interstate Highway System. A total of 98.6 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.
  • 4,010 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 21,269 bridges at an estimated cost of $11.3 billion.
  • This compares to 21,631 bridges that needed work in 2017.

County Year Built Daily Crossings Type of Bridge Location
Oklahoma 1975 62,800 Urban Interstate I-44 S.B. over Oklahoma River/ Co. Rd.
Oklahoma 1975 61,950 Urban Interstate I-44 over Oklahoma River/ Co. Rd.
Oklahoma 1974 55,650 Urban Interstate I-44 NB over Independence Ave Under
Tulsa 1972 46,000 Urban Interstate I-444 WB Ramp over I-244 Under
Oklahoma 1962 40,300 Urban Interstate I-235 SB over I-44 Under
Oklahoma 1960 39,000 Urban Interstate I-40 EB over FAU 9481 (Sooner Rd) Und
Oklahoma 1960 39,000 Urban Interstate I-40 EB over FAU 9440 (Se 15 St) Und
Oklahoma 1960 39,000 Urban Interstate I-40 EB over Crutcho Creek
Oklahoma 1960 35,000 Urban Interstate I-40 WB over FAU 9481 (Sooner Rd) Und
Oklahoma 1960 35,000 Urban Interstate I-40 WB over Crutcho Creek
Oklahoma 1971 22,800 Urban minor arterial NW 122nd St. over Spring Creek
Oklahoma 1974 22,500 Urban minor arterial Macarthur Blvd. over N. Canadian River
Oklahoma 1952 22,000 Urban minor arterial May Ave. over Northwest Expy Under
Oklahoma 1954 21,300 Urban minor arterial SE 29th St(E1090) over Kuhlman Creek
Oklahoma 1942 20,500 Rural major collector SE 29th St(1090) over Crutcho Creek
Oklahoma 1945 20,000 Urban minor arterial S.W 59th Street over Lightning Creek
Tulsa 1965 19,481 Urban collector Fau 83(E 31St S over Mingo Creek
Tulsa 1975 19,279 Urban collector Fau 83(E.31St.) over Brookhollow Creek
Oklahoma 1972 17,900 Urban local road Sw 29th St. over I-44 Under
Oklahoma 1971 17,000 Urban minor arterial NW 10th St. W.B. over Street-Ramp-Creek Under
Oklahoma 1975 15,620 Urban minor arterial Council Rd. over N. Canadian River
Tulsa 1980 15,400 Urban local road E0670 (81St St) over Little Haikey Creek
Oklahoma 1974 15,000 Urban collector E1070 (Reno Ave.) over Cherry Creek
Tulsa 1965 14,523 Urban collector Fau 8220 (E 71St S over Joe Creek
Oklahoma 1971 14,400 Urban minor arterial E.B. NW 10 St. over Street--Creek Under
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 595 554,695 8,542,651 2 3,128 12,600
Rural arterial 1,399 1,151,449 7,584,073 9 11,578 44,000
Rural minor arterial 1,210 804,162 3,703,611 18 24,531 60,070
Rural major collector 7,148 2,235,902 6,087,424 586 129,132 216,616
Rural minor collector 5 9,489 3,950 1 4,132 1,700
Rural local road 9,546 1,399,966 1,845,788 1,500 135,352 185,968
Urban Interstate 524 856,947 19,118,847 10 16,991 453,700
Urban freeway/expressway 420 530,364 11,249,220 2 2,383 14,700
Urban other principal arterial 354 410,095 4,158,778 4 4,095 27,300
Urban minor arterial 706 451,502 4,755,584 49 24,801 347,427
Urban collector 579 441,357 3,442,750 53 36,126 229,446
Urban local road 734 169,492 1,237,422 62 15,626 80,552
Total 23,220 9,015,419 71,730,098 2,296 407,875 1,674,079
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 15,525 $10,334 44,828,315 6,940,338
Widening & rehabilitation 4,945 $791 21,696,265 782,991
Rehabilitation 93 $42 285,068 41,436
Deck rehabilitation/replacement 0 $0 0 0
Other structural work 706 $108 665,785 117,712
Total 21,269 $11,275 67,475,433 7,882,477

About the data:

Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. 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 January 3, 2022.

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 2020 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.

11
Compared to 9 in 2020

in the nation in % of structurally deficient bridges

1. West Virginia 20.4%
10. Michigan 11.0%
11. Oklahoma 9.9%
12. New York 9.5%

4
Compared to 3 in 2020

in the nation in # of structurally deficient bridges

1. Iowa 4,504
3. Illinois 2,405
4. Oklahoma 2,296
5. Missouri 2,218

31
Compared to 24 in 2020

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 19.5%
30. New Mexico 4.7%
31. Oklahoma 4.5%
32. South Carolina 4.4%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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