National Bridge Inventory: Utah

  • The state has identified needed repairs on 138 bridges.
  • This compares to 127 bridges that needed work in 2019.
  • Over the life of the IIJA, Utah will receive a total of $225.0 million in bridge formula funds, which will help make needed repairs.
  • Utah currently has access to $90.0 million of that total, and has committed $9.7 million towards 12 projects as of June 2023.
  • Of the 3,109 bridges in the state, 75, or 2.4 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 66 bridges classified as structurally deficient in 2019.
  • The deck area of structurally deficient bridges accounts for 1.5 percent of total deck area on all structures.

County Year Built Daily Crossings Type of Bridge Location
Salt Lake 1964 90,775 Urban Interstate I-80 (SR-80) WBL over 20 East Street
Salt Lake 1980 87,931 Urban freeway/expressway SR-201,(21 S.St) over 32 West St. Int. X-Rd.
Salt Lake 1979 23,677 Urban minor arterial 106 So over East Jordan Canal
Salt Lake 1980 18,661 Urban other principal arterial SR-172 (56 W St) over I-80 (SR-80) EBL & ; W
Weber 1967 18,512 Urban Interstate I-84 (SR-84) WBL over 44 South Street
Salt Lake 1936 18,276 Urban minor arterial Highland Drive over Big Cottonwood Creek
Salt Lake 1965 14,993 Urban minor arterial 650 North Street over Jordan River
Salt Lake 1980 14,979 Urban collector 3 East Street over Mill Creek
Washington 1998 13,851 Urban collector Foremaster Drive over Rim Rock Wash
Salt Lake 1966 13,623 Urban other principal arterial SR-186,Foothill Dr over I-80 (SR-80) EBL and WB
Morgan 1967 10,313 Rural Interstate I-84 (SR-84) over Weber River
Salt Lake 1935 8,988 Urban minor arterial 134 South Street over Utah & Salt Lake Canal
Weber 1966 8,922 Urban collector 44 South Street over I-15 (SR-15) NBL and SBl
Salt Lake 1973 7,905 Urban Interstate Mt. Aire Road over I-80 (SR-80) EBL and WB
Cache 1983 7,449 Urban collector Logan City Street over Logan River
Salt Lake 1940 6,523 Urban minor arterial 56 South Street over Jordan Salt Lake Canal
Weber 1965 6,300 Urban local road Parker Drive-Ogden over Weber River
Davis 1974 3,715 Urban collector 5 E.St.-So.Weber over I-84 (SR-84) EBL & W
Salt Lake 1960 2,293 Urban local road 5 South Street over Jordan River
Weber 1972 2,067 Rural major collector County Road over North Fork Ogden River
Cache 1925 2,000 Rural local road County Road over Bear River
Salt Lake 1972 1,994 Urban collector 3 West Street over I-215 (SR-215) EBL &
Summit 1955 1,805 Rural minor arterial SR-32 over Weber River
Utah 1975 1,260 Urban local road 4 East Street over American Fork Creek
Millard 1966 1,241 Rural major collector SR-161,Int.X-Rd over I-15 (SR-15) NBL & ; S
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 414 272,616 5,822,680 1 6,243 10,313
Rural arterial 179 109,626 1,424,335 0 0 0
Rural minor arterial 144 51,201 326,473 2 623 2,336
Rural major collector 300 90,513 392,622 8 1,363 5,941
Rural minor collector 149 32,677 149,002 7 802 2,058
Rural local road 534 91,297 221,370 32 2,826 5,013
Urban Interstate 471 640,545 40,086,613 3 1,874 117,192
Urban freeway/expressway 68 78,631 1,912,651 1 3,463 87,931
Urban other principal arterial 278 330,437 6,138,077 2 4,166 32,284
Urban minor arterial 168 169,358 1,912,425 5 1,437 72,457
Urban collector 205 100,562 940,025 7 5,161 51,410
Urban local road 199 59,298 466,547 7 1,827 13,006
Total 3,109 2,026,760 59,792,820 75 29,785 399,941
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 26 $56 619,930 15,430
Widening & rehabilitation 1 $1 3,000 263
Rehabilitation 91 $103 437,472 35,890
Deck rehabilitation/replacement 2 $0 350 80
Other structural work 18 $8 1,345 2,417
Total 138 $168 1,062,097 54,080

About the data:

Data and cost estimates are from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on July 3, 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 2022 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 46 in 2022

in the nation in % of structurally deficient bridges

1. West Virginia 20.0%
45. Vermont 3.0%
46. Utah 2.0%
47. District of Columbia 2.0%

Compared to 49 in 2022

in the nation in # of structurally deficient bridges

1. Iowa 4,558
48. Vermont 75
49. Utah 75
50. Nevada 25

Compared to 52 in 2022

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 15.0%
46. Florida 2.0%
47. Utah 2.0%
48. Alabama 1.0%
Full State Ranking


  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on July 3, 2023. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

    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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