National Bridge Inventory: Georgia



  • Of the 14,879 bridges in the state, 494, or 3.3 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is down from 622 bridges classified as structurally deficient in 2014.
  • 4 of the structurally deficient bridges are on the Interstate Highway System.
  • 1,703 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 13,626 bridges at an estimated cost of $5.7 billion.
  • This compares to 13,524 bridges that needed work in 2014.

County Year Built Daily Crossings Type of Bridge Location
Cobb 1967 225,340 Urban Interstate I-75 over Sope Creek
Fulton 1966 137,730 Urban Interstate I-285 over South Utoy Creek
Cobb 1978 79,670 Urban Interstate I-285 over Ramp I-285C to I-75 NBl
Cobb 1978 79,670 Urban Interstate I-285 over Rmp I-285 Ccbl to I-75S
Clayton 1959 41,630 Urban local road I-285 Ramp over I-285 Rmp to I-75 NBl
Bibb 1924 34,880 Urban other principal arterial US 41 SBL, SR 49 over Rocky Creek
DeKalb 1922 31,650 Urban other principal arterial Ponce De Leon over Lullwater Creek
Muscogee 1962 31,400 Urban other principal arterial US 280, SR 520 Cor over M-87- Chatt. River- RR
Cobb 1980 28,760 Urban collector Windy Hill Road over Rottenwood Creek
Muscogee 1924 27,180 Urban other principal arterial Buena Vista Road over Bull Creek
Muscogee 1988 26,920 Urban freeway/expressway US 80 over Flatrock Creek
Gwinnett 1973 24,710 Urban minor arterial US 29- Sr8 over Jackson Creek
Floyd 1947 23,080 Urban other principal arterial SR 1 - US 27 over Big Dry Creek
Glynn 1986 22,740 Urban other principal arterial Torras Causeway over Mackay River
Fulton 1924 21,890 Urban minor arterial Mcdonough Blvd. over Norfolk-Southern RR
Troup 1984 20,350 Urban other principal arterial SR 109 over CSX Railroad
Fulton 1948 18,610 Urban collector Howell Mill Road over Peachtree Creek
Wayne 1957 18,520 Urban other principal arterial US 84 (WBl) over Little Mcmullen Creek
Fulton 1923 16,410 Urban minor arterial Ted Turner Drive ( over Ns-CSX RR (340316X)
Bibb 1968 15,650 Urban other principal arterial US 23/SR 87 over I-75 @ Milepost 164.92N
Gwinnett 1976 14,180 Urban local road New Hope Road over Alcovy River
Forsyth 1955 14,130 Rural minor arterial Browns Bridge Rd over Six MI Crk (Lake Lanier)
Whitfield 1962 13,870 Rural major collector Carbondale Road over I-75
Muscogee 1950 13,290 Urban minor arterial Forrest Road over Bull Creek
Floyd 1915 13,060 Urban minor arterial Broad Street over Etowah River
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 421 754,566 14,898,549 0 0 0
Rural arterial 1,005 1,070,228 6,917,020 5 8,999 30,290
Rural minor arterial 1,368 934,357 5,221,659 22 29,090 104,730
Rural major collector 2,640 1,117,014 3,605,337 74 35,894 83,740
Rural minor collector 1,180 312,051 618,006 59 16,259 24,118
Rural local road 3,409 649,206 1,288,103 248 45,583 68,163
Urban Interstate 573 1,235,327 52,614,148 4 8,453 522,410
Urban freeway/expressway 223 343,435 9,962,980 1 148 26,920
Urban other principal arterial 838 1,301,624 16,395,528 11 48,040 239,020
Urban minor arterial 1,253 1,214,599 15,058,146 21 20,667 183,240
Urban collector 619 435,408 3,935,016 11 9,875 78,280
Urban local road 1,350 710,299 4,928,739 38 12,944 112,911
Total 14,879 10,078,114 135,443,231 494 235,953 1,473,822
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 1,378 $739 4,360,314 550,314
Widening & rehabilitation 1,161 $285 7,697,470 673,173
Rehabilitation 167 $70 1,299,286 134,744
Deck rehabilitation/replacement 171 $125 1,112,175 238,311
Other structural work 10,749 $4,530 103,500,000 7,523,453
Total 13,626 $5,749 118,000,000 9,119,996

About the data:

Data from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), released March 15, 2019. 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 2017 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 cost estimate is supplied by the bridge owner or the bridge is classified as structurally deficient.

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.

45
from 45 in 2017

in the nation in % of structurally deficient bridges

1. Rhode Island 23.1%
44. Delaware 3.9%
45. Georgia 3.3%
46. District of Columbia 3.3%

28
from 28 in 2017

in the nation in # of structurally deficient bridges

1. Iowa 4,675
27. New Jersey 544
28. Georgia 494
29. Massachusetts 481
Full State Ranking

  • Source: Bridge data is from the 2018 National Bridge Inventory ASCII files, released by the Federal Highway Administration on March 14, 2019. Note that specific conditions on bridges may have changed as a result of recent work. 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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