County profile · official public datasets

Thomas County, GA

179 public highway bridges tracked in the FHWA National Bridge Inventory: 90.5% rated Good, 9.5% Fair, 0% Poor.

Compiled by PlainBridges

179
Public bridges: 90.5%
Good condition: 0%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Thomas County posts a top-5% lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 3%
lowest Poor share in state: 0%
Poor-condition share: 179
public highway bridges: 1978
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Thomas County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Thomas County ranks #5 of 159 Georgia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Thomas County, Georgia contains 179 public highway bridges. Roughly 90.5% are rated “Good,” 9.5% “Fair,” and 0% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

179

Public highway bridges in Thomas County

Good condition

90.5%

162 of 179 rated 7-9

Fair condition

9.5%

17 of 179 rated 5-6

Poor condition

0 of 179 rated 4 or below

In-state Poor-share rank

#5 of 159

Among Georgia counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 179 NBI-tracked bridges by lowest applicable component rating.

Good

90.5% (162)

Fair

9.5% (17)

Poor

0% (0)

39.1% of Thomas County's bridges have passed the 50-year mark

70 of the 179 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 90.5% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

1920s

1
1930s

10
1940s

8
1950s

19
1960s

21
1970s

25
1980s

35
1990s

23
2000s

32
2010s

5

What this shows Construction peaked in the 1980s, when 35 of the county's bridges still in the inventory were built, which is 19.6% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1978) matches the Georgia average (1977).

How Thomas County compares with Georgia's closest counties by inventory size

The 5 Georgia counties nearest Thomas County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1978 against a peer-group mean of 1981 is in line with the group.

Showing the 5 closest of 158 Georgia counties eligible for comparison.

Bridge inventory size and condition shares for Thomas County and the 5 Georgia counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Richmond County	183	89.6%	8.7%	1.6%	1984
Thomas County (this page)	179	90.5%	9.5%	0%	1978
Coweta County	173	80.3%	19.1%	0.6%	1988
Laurens County	169	69.8%	26.6%	3.6%	1972
Carroll County	168	72.6%	26.8%	0.6%	1977
Clayton County	168	82.7%	16.1%	1.2%	1982

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Thomas County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Thomas County, both outside Georgia so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside GA (179 bridges here).

Graham County, AZ · 179 bridges
Carroll County, IL · 179 bridges
Fremont County, IA · 179 bridges
Morris County, KS · 179 bridges

Similar average build year

Nearest mean year-built outside GA (1978 here).

Orange County, CA · avg 1978 · 1,164 bridges
Sumner County, KS · avg 1978 · 659 bridges
Allen County, IN · avg 1978 · 613 bridges
Livingston County, IL · avg 1978 · 579 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 179 Good 162 Fair 17 Poor 0

All bridges (179)

Sort:

Thomas County Bridge Snapshot

Condition distribution

39.1% of Thomas County's bridges have passed the 50-year mark

How Thomas County compares with Georgia's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (179)

PINE TREE BLVD

US 84 WBL SR 38

MAGNOLIA ROAD

MEIGS POST ROAD

LEE WHITE ROAD

SR 3 ALT

CR 226

REICHERTVILLE RD

STAGE ROAD

SR 188

POPE ROAD

OLD QUITMAN ROAD

STEPHENSON ROAD

MEIGS POST ROAD

SR188

WOODHAVEN ROAD

EGG-BUTTER ROAD

POPE ROAD

MAIN STREET ROAD

HALL ROAD

CLYDE GRIFFIN RD

SPRING HILL ROAD

PATTEN-COOLIDGE RD

GATLING CREEK ROAD

BANISTER ROAD

McKINNON ROAD

BANISTER ROAD

SALEM ROAD

CASSIDY ROAD

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