National Bridge Inventory: Utah



  • The state has identified needed repairs on 167 bridges.
  • This compares to 128 bridges that needed work in 2021.
  • 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 $180.0 million of that total, and has committed $72.2 million towards 38 projects as of June 2025.
  • Of the 3,144 bridges in the state, 109, or 3.5 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 63 bridges classified as structurally deficient in 2021.
  • The deck area of structurally deficient bridges accounts for 2.4 percent of total deck area on all structures.

Top Most Traveled Structurally Deficient Bridges in Utah

County Year Built Daily Crossings Type of Bridge Location
Salt Lake 1966 127,090 Urban Interstate I-80 (SR-80) over SR-89 (US-89) State St.
Salt Lake 1976 102,805 Urban Interstate I-215 (SR-215) WBL over SR-68 Redwood Road
Salt Lake 1980 99,668 Urban freeway/expressway SR-201,(21 S.St) over 32 West St. Int. X-Rd.
Salt Lake 1976 91,400 Urban Interstate I-215 (SR-215) NBL over SR-173,54 So. Street
Salt Lake 1979 37,101 Urban minor arterial 106 So over East Jordan Canal
Juab 1984 34,167 Rural Interstate I-15 (SR-15) NBL over Deer Crossing
Salt Lake 1979 27,800 Urban minor arterial 106 S.St.Fa#2078 over Jordan and Salt Lake C
Salt Lake 1973 25,770 Urban other principal arterial SR-71 (9E. St.) over Little Cottonwood Creek
Weber 1967 22,044 Urban Interstate I-84 (SR-84) WBL over 44 South Street
Salt Lake 1985 21,510 Urban other principal arterial SR-154SB,(Bngtr.H) over 7 South Street
Salt Lake 1985 21,510 Urban other principal arterial SR-154NB,(Bngtr.H) over 7 South Street
Salt Lake 1980 21,152 Urban other principal arterial SR-172 (56 W St) over I-80 (SR-80) EBL & ; W
Salt Lake 1964 20,828 Urban minor arterial 4 South Street over Jordan River
Salt Lake 1936 20,009 Urban minor arterial Highland Drive over Big Cottonwood Creek
Morgan 1965 19,585 Rural Interstate I-84 (SR-84) WBL over Weber River and Uprr
Salt Lake 1965 19,158 Urban minor arterial 650 North Street over Jordan River
Weber 1967 18,995 Urban Interstate I-84 (SR-84) EBL over US-89 (SR-89) NBL & SBl
Salt Lake 1966 18,995 Urban other principal arterial SR-186,Foothill Dr over I-80 (SR-80) EBL and WB
Salt Lake 1980 16,400 Urban collector 3 East Street over Mill Creek
Summit 1967 14,685 Rural Interstate I-80 (SR-80) over Echo Creek
Davis 1973 11,728 Urban collector State Street over I-15,(SR-15),UPRR & ;
Weber 1966 9,768 Urban collector 44 South Street over I-15 (SR-15) NBL and SBl
Morgan 1967 8,760 Rural Interstate I-84 (SR-84) over Weber River
Box Elder 1968 8,412 Urban other principal arterial SR-126 over I-15 (SR-15) NBL and SBl
Weber 1970 7,420 Urban other principal arterial SR-39, 12th Street over Weber River

Bridge Inventory: Utah

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 418 273,499 7,801,054 7 10,843 83,294
Rural arterial 187 118,445 1,620,054 1 178 1,559
Rural minor arterial 142 50,809 303,523 2 393 2,900
Rural major collector 298 91,682 394,561 10 2,443 8,188
Rural minor collector 149 33,549 58,773 6 722 563
Rural local road 532 92,838 142,758 42 3,918 5,740
Urban Interstate 471 642,908 46,740,165 7 7,729 363,174
Urban freeway/expressway 71 93,133 2,276,855 1 3,463 99,668
Urban other principal arterial 292 343,271 6,719,510 7 7,933 124,769
Urban minor arterial 169 170,053 2,236,387 8 4,600 133,618
Urban collector 212 100,913 969,622 9 4,314 56,664
Urban local road 203 62,136 489,613 9 2,937 24,315
Total 3,144 2,073,235 69,752,875 109 49,473 904,452

Proposed Bridge Work

Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 25 $57 657,812 15,498
Widening & rehabilitation 2 $3 30,341 1,013
Rehabilitation 113 $142 805,037 49,268
Deck rehabilitation/replacement 2 $0 350 80
Other structural work 25 $19 10,439 5,359
Total 167 $221 1,503,979 71,218

About the data:

Data and cost estimates are from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on June 24, 2025. 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 2023 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.

43
Compared to 44 in 2024

in the nation in % of structurally deficient bridges

1. Iowa 19.0%
42. Vermont 4.0%
43. Utah 4.0%
44. Virginia 3.0%

47
Compared to 47 in 2024

in the nation in # of structurally deficient bridges

1. Iowa 4,424
46. Rhode Island 110
47. Utah 109
48. Arizona 95

45
Compared to 47 in 2024

in the nation in % of structurally deficient bridge deck area

1. West Virginia 13.0%
44. Hawaii 3.0%
45. Utah 2.0%
46. Alabama 2.0%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on June 24, 2025. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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