National Bridge Inventory: Tennessee Congressional District 8


  • Of the 4,683 bridges in the counties of this district, 178, or 3.8 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is down from 232 bridges classified as structurally deficient in 2017.
  • 617 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • Repairs are needed on 1,585 bridges in the district, which will cost an estimated $919.4 million.
  • This compares to 1,628 bridges that needed work in 2017.

County Year Built Daily Crossings Type of Bridge Location
Shelby 1966 89,400 Urban Interstate I-240SB 348605B over I-240 EB / Agnes Pl & RR
Shelby 1968 68,590 Urban freeway/expressway Fau 4032 over Waring Rd
Shelby 1969 40,530 Urban freeway/expressway Fau 4032 over N Highland St
Shelby 1968 40,530 Urban minor arterial Fau 4032 over Holmes St
Shelby 1968 40,530 Urban freeway/expressway Fau 4032 over Holmes St
Shelby 1969 40,530 Urban freeway/expressway Fau 4032 over N. Highland St.
Shelby 1978 39,760 Urban other principal arterial Fau 2810 over Winchester Rd
Shelby 1954 39,510 Urban other principal arterial Fas 176 over Nonconnah Creek
Shelby 1929 37,310 Urban other principal arterial Fap 14 297767K over IC RR & Nonconnah Creek
Shelby 1983 34,040 Urban other principal arterial Fas 15 over W. Fk. Fletcher Creek
Shelby 1970 33,320 Urban other principal arterial Fau 2830 over Johns Creek
Shelby 1958 32,000 Urban minor arterial Fau 2825 over Cherry Creek
Shelby 1956 31,150 Urban minor arterial Fau 1 over Lick Creek
Shelby 1979 30,490 Urban other principal arterial Fas 175 over Branch of Johns Creek
Shelby 1963 26,320 Urban minor arterial Fau 2878 over Branch
Shelby 1954 25,590 Urban other principal arterial Fau 2810 663402M over Airways Blvd/Yale Yards
Shelby 1928 24,620 Urban other principal arterial Fau 57 299598G over SR 23 CSX & Cnic RR
Shelby 1958 24,450 Urban other principal arterial Fau 23 299599N over CSX & Cnic RR
Shelby 1964 24,190 Urban other principal arterial Fap 14 over SR-14 / I-55
Fayette 1992 22,660 Rural arterial Fap 15 over Branch
Shelby 1968 22,520 Urban minor arterial Fau 2814 over Sam Cooper Blvd.
Shelby 1970 22,520 Urban minor arterial Fau 2814 348583D over pedestrian walkway
Shelby 1978 21,500 Urban other principal arterial Fau 2813 over Plough Blvd. SB. Lanes
Shelby 1965 21,500 Urban other principal arterial Fau 2813 over Days Creek
Shelby 1968 20,540 Urban minor arterial White Station Rd. over Sam Cooper Blvd.
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 83 149,849 1,826,121 0 0 0
Rural arterial 342 343,102 3,721,510 6 12,053 51,100
Rural minor arterial 316 226,540 1,301,970 5 1,670 31,840
Rural major collector 646 231,182 926,360 11 8,686 16,400
Rural minor collector 678 166,025 506,220 35 5,812 19,830
Rural local road 1,350 218,384 343,684 64 9,832 12,800
Urban Interstate 209 459,943 13,940,790 2 3,218 94,320
Urban freeway/expressway 60 116,155 3,051,800 4 3,132 190,180
Urban other principal arterial 296 409,932 6,242,680 14 56,969 393,110
Urban minor arterial 279 265,744 3,431,090 21 23,064 336,090
Urban collector 142 51,655 602,360 3 1,508 6,470
Urban local road 282 103,736 507,890 13 6,913 26,780
Total 4,683 2,742,247 36,402,475 178 132,856 1,178,920
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 211 $122.8 998,610 93,897
Widening & rehabilitation 599 $276.8 4,509,550 312,683
Rehabilitation 698 $412.9 10,214,040 456,939
Deck rehabilitation/replacement 15 $96.6 242,520 105,564
Other structural work 62 $10.3 175,490 11,819
Total 1,585 $919.4 16,140,210 980,903

Data includes information for the following area(s): Benton County, Carroll County, Crockett County, Dyer County, Fayette County, Gibson County, Haywood County, Henry County, Lake County, Lauderdale County, Madison County, Obion County, Shelby County, Tipton County, Weakley County

About the data:

Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections. Cost estimates were downloaded by ARTBA on January 3, 2022.

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 2020 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.

41
Compared to 42 in 2020

in the nation in % of structurally deficient bridges

1. West Virginia 20.4%
40. Minnesota 4.6%
41. Tennessee 4.1%
42. Virginia 3.8%

20
Compared to 20 in 2020

in the nation in # of structurally deficient bridges

1. Iowa 4,504
19. Wisconsin 987
20. Tennessee 841
21. Texas 789

29
Compared to 39 in 2020

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 19.5%
28. Kentucky 4.8%
29. Tennessee 4.7%
30. New Mexico 4.7%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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