National Bridge Inventory: Oklahoma

  • Of the 23,197 bridges in the state, 2,207, or 9.5 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is down from 2,540 bridges classified as structurally deficient in 2018.
  • The deck area of structurally deficient bridges accounts for 4.2 percent of total deck area on all structures.
  • 6 of the structurally deficient bridges are on the Interstate Highway System. A total of 99.2 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.
  • 4,062 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 21,115 bridges at an estimated cost of $11.2 billion.
  • This compares to 21,454 bridges that needed work in 2018.

County Year Built Daily Crossings Type of Bridge Location
Tulsa 1972 46,000 Urban Interstate I-444 WB Ramp over I-244 Under
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 39,000 Urban Interstate I-40 EB over FAU 9481 (Sooner Rd) Und
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 1940 20,000 Urban minor arterial NW 136th St. over Creek
Oklahoma 1945 20,000 Urban minor arterial S.W 59th Street over Lightning Creek
Craig 1957 19,900 Rural Interstate Will Rogers Tpi-44 over U.S. 60 Under
Craig 1957 19,900 Rural Interstate Will Rogers Tpi-44 over I-44 Ramp Under
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 1971 17,000 Urban minor arterial NW 10th St. W.B. over Street-Ramp-Creek Under
Pottawatomie 1961 16,100 Rural minor arterial U.S. 270 Ramp S-W over I-40 /U.S. 177 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
Cleveland 1971 15,050 Rural arterial S.H. 9 over Bishop 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
Oklahoma 1940 14,100 Urban collector Portland Ave. over Deep Fork Creek
Oklahoma 2000 14,000 Urban minor arterial Western Ave. over Brock Creek
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 602 566,569 8,644,811 2 2,760 39,800
Rural arterial 1,403 1,157,567 7,674,933 7 12,762 35,450
Rural minor arterial 1,208 809,278 3,690,175 8 19,513 36,330
Rural major collector 7,137 2,257,467 6,105,029 573 130,395 221,791
Rural minor collector 5 9,489 3,650 1 4,132 1,400
Rural local road 9,491 1,405,117 1,834,265 1,443 133,830 189,702
Urban Interstate 548 928,366 19,628,952 4 3,607 163,000
Urban freeway/expressway 422 536,567 11,254,490 2 2,383 14,700
Urban other principal arterial 361 418,236 4,159,691 3 694 24,800
Urban minor arterial 707 456,728 4,778,044 55 26,021 390,592
Urban collector 579 447,441 3,452,088 48 35,153 221,321
Urban local road 734 171,797 1,235,130 61 15,022 58,046
Total 23,197 9,164,623 72,461,258 2,207 386,273 1,396,932
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 15,302 $10,262 44,501,421 6,911,889
Widening & rehabilitation 4,927 $791 21,657,806 784,305
Rehabilitation 102 $43 287,940 42,575
Deck rehabilitation/replacement 0 $0 0 0
Other structural work 784 $125 802,293 129,994
Total 21,115 $11,221 67,249,460 7,868,763

About the data:

Data and cost estimates are from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on February 1, 2023. 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 2021 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 11 in 2021

in the nation in % of structurally deficient bridges

1. West Virginia 20.0%
10. North Dakota 11.0%
11. Oklahoma 10.0%
12. New York 9.0%

Compared to 4 in 2021

in the nation in # of structurally deficient bridges

1. Iowa 4,604
4. Missouri 2,230
5. Oklahoma 2,207
6. New York 1,611

Compared to 31 in 2021

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 17.0%
31. Wisconsin 5.0%
32. Oklahoma 4.0%
33. New Mexico 4.0%
Full State Ranking


  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on February 1, 2023. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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