County profile · official public datasets

Troup County, GA

168 public highway bridges tracked in the FHWA National Bridge Inventory: 73.8% rated Good, 25.6% Fair, 0.6% Poor.

168
Public bridges: 73.8%
Good condition: 0.6%
Poor condition

The verdict

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

Troup County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 47%
lowest Poor share in state: 0.6%
Poor-condition share: 168
public highway bridges: 1980
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.

Troup County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Troup County ranks #75 of 159 Georgia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.6%). Troup County, Georgia contains 168 public highway bridges. Roughly 73.8% are rated “Good,” 25.6% “Fair,” and 0.6% “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

168

Public highway bridges in Troup County

Good condition

73.8%

124 of 168 rated 7-9

Fair condition

25.6%

43 of 168 rated 5-6

Poor condition

0.6%

1 of 168 rated 4 or below

In-state Poor-share rank

#75 of 159

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

Condition distribution

Share of 168 NBI-tracked bridges by lowest applicable component rating.

Good

73.8% (124)

Fair

25.6% (43)

Poor

0.6% (1)

Troup County's Poor-condition bridges carry 970 vehicle crossings a day

That is 0% of the county's reported daily bridge traffic on 0.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 970 crossings a day against 12,586 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 168 of 168 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.9% of Troup County's bridges have passed the 50-year mark

62 of the 168 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 73.8% 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.

One structure carries 100% of the county's Poor-condition bridge traffic

MOBLEY BRIDGE RD over YELLOW JACKET CREEK TRIB, built 1950, carries 970 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 1-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 970 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

2
1940s

3
1950s

4
1960s

31
1970s

66
1980s

19
1990s

13
2000s

11
2010s

11
2020s

6

What this shows Construction peaked in the 1970s, when 66 of the county's bridges still in the inventory were built, which is 39.3% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1980) matches the Georgia average (1977).

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

The 5 Georgia counties nearest Troup County in number of bridges, with their condition splits. Its 0.6% Poor share is the 4th-lowest of these 6. Its average build year of 1980 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 Troup County and the 5 Georgia counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
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
Troup County (this page)	168	73.8%	25.6%	0.6%	1980
Cherokee County	164	84.8%	15.2%	0%	1985

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 Troup 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 Troup County, both outside Georgia so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside GA (168 bridges here).

Wilcox County, AL · 168 bridges
Kings County, CA · 168 bridges
Clarke County, IA · 168 bridges
Greene County, IA · 168 bridges

Similar average build year

Nearest mean year-built outside GA (1980 here).

Tulsa County, OK · avg 1980 · 1,135 bridges
Miami-Dade County, FL · avg 1980 · 1,057 bridges
Pulaski County, AR · avg 1980 · 721 bridges
McLennan County, TX · avg 1980 · 714 bridges

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

All 168 Good 124 Fair 43 Poor 1

All bridges (168)

Sort:

Troup County Bridge Snapshot

Condition distribution

Troup County's Poor-condition bridges carry 970 vehicle crossings a day

36.9% of Troup County's bridges have passed the 50-year mark

One structure carries 100% of the county's Poor-condition bridge traffic

How Troup 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 (168)

US 27 (NBL)/ SR 1

I-85 (SBL)

I-85 (NBL)

I-85 (SBL)

3RD AVENUE

US 29/ SR 14

I-85 (NBL)

I-85 (SBL)

I-85 (NBL)

CR 415 SALEM ROAD

I-85 (SBL)

I-85 (SBL)

FINNEY ROAD

YOUNGS MILL ROAD

CR 78 BAUGHS CROSS

US 27/ SR 1

SR 14 SPUR

OAK GROVE ROAD

I-85 (NBL)

I-85 (SBL)

I-85 (NBL)

I-85 (SBL)

I-85 (NBL)

FAS 740 SPUR

FLOYD ROAD

ROBERTSON ROAD

VULCAN MATERIAL RD

EDGEWOOD AVENUE

SR 219

WILDWOOD ROAD

PEGASUS PARKWAY

US 27 (NBL)

DENNIS SMITH RD

LOWER BIG SPRINGS

N. HUTCHINSON MILL

FORT DRIVE

US 27 (SBL)/ SR 1

I-85 (NBL)

I-85 (SBL)

I-185 (NBL)

I-185 (SBL)

DALLAS MILL ROAD

SR 18

ROCK MILL ROAD

LOWER BIG SPRINGS

SALEM ROAD

US 29 CONN./ SR 29

I-85 (NBL)

UPPER BIG SPGS RD

US 27/ SR 1

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