National Bridge Inventory: Vermont



  • The state has identified needed repairs on 1,259 bridges.
  • This compares to 1,229 bridges that needed work in 2021.
  • Over the life of the IIJA, Vermont will receive a total of $225.0 million in bridge formula funds, which will help make needed repairs.
  • Vermont currently has access to $180.0 million of that total, and has committed $128.3 million towards 70 projects as of June 2025.
  • Of the 2,866 bridges in the state, 114, or 4.0 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 68 bridges classified as structurally deficient in 2021.
  • The deck area of structurally deficient bridges accounts for 4.6 percent of total deck area on all structures.

Top Most Traveled Structurally Deficient Bridges in Vermont

County Year Built Daily Crossings Type of Bridge Location
Windsor 1967 21,000 Rural Interstate I 091 ML over US 4 VT 14 Necr Whtr
Windsor 1966 20,105 Urban Interstate I-89 NB over Connecticut River,Necrr
Windsor 1966 19,185 Urban Interstate I-89 SB over Connecticut River,Necrr
Windham 1959 18,300 Urban Interstate I 091 ML over I 91 over US 5
Chittenden 1964 17,800 Urban other principal arterial US 2 ML over I 89 under US 2
Orange 1970 16,700 Rural Interstate I 089 ML over I 89 over Th No 1
Windsor 1968 15,800 Rural Interstate I 089 ML over I 89 over Wr&Necr&107
Windham 1963 15,000 Rural Interstate I 091 ML over I 91 over VT 103
Windsor 1965 13,000 Rural Interstate I 091 ML over I 91 over US 5
Windsor 1965 13,000 Rural Interstate I 091 ML over I 91 over US 5
Windsor 1968 12,500 Rural Interstate I 091 ML over I 91 over VT 10A
Windsor 1968 12,500 Rural Interstate I 091 ML over I 91 over VT 10A
Addison 1934 10,700 Rural minor arterial VT 22A Alt over Otter Creek
Windsor 1911 8,900 Rural arterial US 4 ML over Ottauquechee River
Windham 1920 7,103 Urban collector Nh119 over Connecticut River
Windham 1930 6,100 Urban collector Bridge Street over Connecticut River
Washington 1961 5,600 Rural major collector US 2 ML over Little River
Windsor 1962 5,600 Rural arterial VT 103 ML over Williams R. & Gmrr
Orange 1939 5,000 Rural major collector US 5 ML over Waits River
Windham 1934 4,400 Rural arterial VT 9 ML over N. Br. Deerfield River
Washington 1926 4,200 Rural major collector VT 012 ML over Dog River
Lamoille 1932 4,100 Rural minor arterial VT 1 ML over Gihon River
Windham 1961 3,500 Rural major collector VT 960 Spur over I 91 Under Putney Sh
Windsor 1866 2,655 Rural major collector Cornish Toll Br Rd over Connecticut River
Orleans 1929 2,600 Rural minor arterial VT 1 ML over East Branch Missisquoi

Bridge Inventory: Vermont

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 258 210,794 3,838,847 8 11,466 119,500
Rural arterial 123 102,688 888,010 3 2,497 18,900
Rural minor arterial 299 140,725 1,246,636 6 2,029 22,000
Rural major collector 546 162,365 1,021,150 18 10,390 34,049
Rural minor collector 174 30,051 97,245 12 1,478 5,944
Rural local road 1,259 155,250 295,608 60 6,314 10,353
Urban Interstate 56 60,660 1,613,090 3 6,272 57,590
Urban freeway/expressway 2 977 19,800 0 0 0
Urban other principal arterial 56 51,315 601,500 1 1,029 17,800
Urban minor arterial 13 7,102 56,526 0 0 0
Urban collector 44 21,118 151,338 2 1,417 13,203
Urban local road 36 7,382 29,859 1 738 600
Total 2,866 950,427 9,859,609 114 43,628 299,939

Proposed Bridge Work

Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 252 $427 295,681 76,247
Widening & rehabilitation 3 $41 11,475 10,287
Rehabilitation 1,001 $1,155 4,072,224 317,058
Deck rehabilitation/replacement 1 $1 78 130
Other structural work 2 $2 670 472
Total 1,259 $1,626 4,380,128 404,194

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.

42
Compared to 45 in 2024

in the nation in % of structurally deficient bridges

1. Iowa 19.0%
41. New Mexico 4.0%
42. Vermont 4.0%
43. Utah 4.0%

45
Compared to 48 in 2024

in the nation in # of structurally deficient bridges

1. Iowa 4,424
44. Alaska 124
45. Vermont 114
46. Rhode Island 110

30
Compared to 34 in 2024

in the nation in % of structurally deficient bridge deck area

1. West Virginia 13.0%
29. Minnesota 5.0%
30. Vermont 5.0%
31. Wisconsin 4.0%
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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