National Bridge Inventory: Nevada



  • The state has identified needed repairs on 266 bridges.
  • This compares to 270 bridges that needed work in 2020.
  • Over the life of the IIJA, Nevada will receive a total of $225.0 million in bridge formula funds, which will help make needed repairs.
  • Nevada currently has access to $135.0 million of that total, and has committed $30.2 million towards 5 projects as of June 2024.
  • Of the 2,099 bridges in the state, 24, or 1.1 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is down from 28 bridges classified as structurally deficient in 2020.
  • The deck area of structurally deficient bridges accounts for 0.8 percent of total deck area on all structures.

Top Most Traveled Structurally Deficient Bridges in Nevada

County Year Built Daily Crossings Type of Bridge Location
Washoe 1966 69,000 Urban Interstate I 80 over City Streets(Nugget)
Clark 1971 36,000 Urban other principal arterial Paradise Rd over Tropicana Wash
Washoe 1966 12,800 Urban minor arterial Keystone Av over Truckee River
Washoe 1980 11,200 Urban minor arterial Greg St over Truckee River
Washoe 1938 10,000 Urban minor arterial Arlington Av over Truckee Rvr
Humboldt 1970 9,000 Rural local road Cross Road over I 80
Washoe 1937 7,600 Urban minor arterial Sierra St over Truckee Rvr
Elko 1974 6,700 Urban other principal arterial Idaho St over Dry Wash
Clark 1977 4,325 Rural arterial US 95 over Eldorado Lake
Elko 1976 3,150 Rural Interstate I 80 over Uprr
Washoe 1962 1,300 Rural major collector Fr Wa09 Canyon Way over Sprr
Storey 1997 1,050 Rural local road Six mile Canyon Rd over Six mile Canyon Crk
Washoe 1991 605 Urban local road Evans Creek Dr over Evans Crk
Lyon 1955 274 Rural local road Rural Road over Truckee-Carson Canal
Elko 1965 260 Rural major collector SR 229/Halleck Rd over Humboldt River
Storey 1995 139 Rural local road Ave De Couleurs over Lousetown Crk
Lyon 1945 128 Rural local road Shady Av over Gold Canyon Crk
Lyon 1970 85 Rural minor collector Old SR 3C E. Wk.R over East Fork Walker Rvr
Lyon 1976 70 Rural minor collector Old SR 3C over East Walker River
Humboldt 1976 55 Rural local road IRR Ft Mcdermitt over Quinn Rvr
Storey 1998 50 Rural local road Connect Div Forest over Long Valley Crk
Elko 1991 30 Rural local road 1096: Marys River over Marys River
Elko 1940 20 Rural local road IRR BIA Rte 12 over Highland Canal
Elko 1933 12 Rural local road Fr El49 over Uprr

Bridge Inventory: Nevada

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 315 233,010 3,919,325 1 1,606 3,150
Rural arterial 150 68,185 955,180 1 113 4,325
Rural minor arterial 37 18,920 175,620 0 0 0
Rural major collector 97 38,192 179,905 2 638 1,560
Rural minor collector 63 27,499 124,908 2 174 155
Rural local road 174 43,521 161,818 10 2,762 10,758
Urban Interstate 292 600,824 18,205,180 1 4,629 69,000
Urban freeway/expressway 85 138,300 4,532,795 0 0 0
Urban other principal arterial 154 181,411 3,936,075 2 1,037 42,700
Urban minor arterial 215 275,725 3,861,646 4 4,532 41,600
Urban collector 222 230,406 2,082,603 0 0 0
Urban local road 295 126,062 1,364,444 1 54 605
Total 2,099 1,982,055 39,499,499 24 15,545 173,853

Proposed Bridge Work

Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 231 $689 6,763,905 253,293
Widening & rehabilitation 3 $4 12,300 2,263
Rehabilitation 14 $22 253,229 11,982
Deck rehabilitation/replacement 0 $0 0 0
Other structural work 18 $8 29,574 3,751
Total 266 $723 7,059,008 271,289

About the data:

Data and cost estimates are from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on August 20, 2024. 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.

52
Compared to 51 in 2023

in the nation in % of structurally deficient bridges

1. Iowa 19.0%
51. Arizona 1.0%
52. Nevada 1.0%

50
Compared to 50 in 2023

in the nation in # of structurally deficient bridges

1. Iowa 4,544
49. Hawaii 78
50. Nevada 24
51. Delaware 11

52
Compared to 52 in 2023

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 14.0%
51. Georgia 1.0%
52. Nevada 1.0%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on August 20, 2024. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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