Total bridges
69
Public highway bridges in Irwin County
County profile · official public datasets
Irwin County, GA
69 public highway bridges tracked in the FHWA National Bridge Inventory: 75.4% rated Good, 24.6% Fair, 0% Poor.
- 69
- Public bridges
- 75.4%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Irwin County pairs a top-quartile lowest Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 22%
- lowest Poor share in state
- 0%
- Poor-condition share
- 69
- public highway bridges
- 1971
- 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.
Irwin County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Irwin County ranks #35 of 159 Georgia counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Irwin County, Georgia contains 69 public highway bridges. Roughly 75.4% are rated “Good,” 24.6% “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.
Good condition
75.4%
52 of 69 rated 7-9
Fair condition
24.6%
17 of 69 rated 5-6
Poor condition
0%
0 of 69 rated 4 or below
In-state Poor-share rank
#35 of 159
Among Georgia counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 69 NBI-tracked bridges by lowest applicable component rating.
Good 75.4% (52)
Fair 24.6% (17)
Poor 0% (0)
68.1% of Irwin County's bridges have passed the 50-year mark
47 of the 69 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 75.4% 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.
When Irwin County's bridges were built
69 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 1
1930–1939
1 bridges
- 1940s 5
1940–1949
5 bridges
- 1950s
1950–1959
11 bridges
- 1960s
1960–1969
27 bridges
- 1970s 4
1970–1979
4 bridges
- 1980s 2
1980–1989
2 bridges
- 1990s
1990–1999
14 bridges
- 2010s 3
2010–2019
3 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1960s, when 27 of the county's bridges still in the inventory were built, which is 39.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1971, 6 years older than the Georgia average of 1977.
How Irwin County compares with Georgia's closest counties by inventory size
The 5 Georgia counties nearest Irwin County in number of bridges, with their condition splits. Its 0% Poor share is the 3rd-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1973 is in line with the group.
Showing the 5 closest of 158 Georgia counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Jasper County | 70 | 57.1% | 38.6% | 4.3% | 1975 |
| Treutlen County | 70 | 85.7% | 14.3% | 0% | 1971 |
| Turner County | 70 | 92.9% | 7.1% | 0% | 1969 |
| Irwin County (this page) | 69 | 75.4% | 24.6% | 0% | 1971 |
| Columbia County | 68 | 91.2% | 8.8% | 0% | 1977 |
| Talbot County | 68 | 66.2% | 26.5% | 7.4% | 1973 |
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 Irwin 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 Irwin County, both outside Georgia so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside GA (69 bridges here).
- Edwards County, KS · 69 bridges
- Barry County, MI · 69 bridges
- Maries County, MO · 69 bridges
- Bowman County, ND · 69 bridges
Similar average build year
Nearest mean year-built outside GA (1971 here).
- Wayne County, MI · avg 1971 · 1,026 bridges
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (17)
MEADOWLARK ROAD
FairOver: SATILLA CREEK
2 MI W OF OSIERFIELD, Irwin, GA
Built 1950 Load: 16.3 t ADT: 370
SATILLA ROAD
FairOver: WILLACOOCHEE RIVER O/F
5.2 MI SE OF OCILLA, Irwin, GA
Built 1968 Load: 17.2 t ADT: 370
BETHLEHEM CH ROAD
FairOver: REEDY CREEK
APP 6 MI S OF OCILLA, Irwin, GA
Built 1959 Load: 19.0 t ADT: 160
5 BRIDGE ROAD
FairOver: REEDY CREEK
APP 5 MI SW OF OCILLA, Irwin, GA
Built 1959 Load: 19.0 t ADT: 810
JOE FLETCHER ROAD
FairOver: HAT CREEK
12 MI W OF OCILLA, Irwin, GA
Built 1966 Load: 19.0 t ADT: 300
5 BRIDGE ROAD
FairOver: ALAPAHA RIVER TRIB.
APP 9.5 MI SW OF OCILLA, Irwin, GA
Built 1951 Load: 19.9 t ADT: 720
SR 90
FairOver: LITTLE BRUSHY CREEK
APP 3.9 MI SE OF OCILLA, Irwin, GA
Built 1952 Load: 21.7 t ADT: 880
PLEASANT GROVE RD
FairOver: SATILLA CREEK
6.4 MI NE OF OCILLA, Irwin, GA
Built 1950 Load: 21.7 t ADT: 20
JEFF DAVIS ROAD
FairOver: BIG CREEK
APP 3 MI N OF IRWINVILLE, Irwin, GA
Built 1949 Load: 22.6 t ADT: 650
FRANK CHURCH ROAD
FairOver: WILLACOOCHEE CREEK
3.1 MI N OF OCILLA, Irwin, GA
Built 1965 Load: 22.6 t ADT: 320
5 BRIDGE ROAD
FairOver: MILL CREEK
APP 7 MI SW OF OCILLA, Irwin, GA
Built 1956 Load: 24.4 t ADT: 720
S BOULEVARD STREET
FairOver: STUMP CREEK
OCILLA - SOUTHSIDE, Irwin, GA
Built 1959 Load: 24.4 t ADT: 1,200
REBECCA-WATERLOO R
FairOver: SAND CREEK
APP 5 MI N OF WATERLOO, Irwin, GA
Built 1962 Load: 24.4 t ADT: 220
BRUSHY CRK ROAD
FairOver: STUMP CREEK
2 MI S OF OCILLA, Irwin, GA
Built 1968 Load: 28.1 t ADT: 350
BUGLE LANE ROAD
FairOver: REEDY CREEK
5.2 MI W OF OCILLA, Irwin, GA
Built 1962 Load: 28.1 t ADT: 450
JOE FLETCHER ROAD
FairOver: SAND CREEK
11 MI W OF OCILLA, Irwin, GA
Built 1966 Load: 29.9 t ADT: 240
SR 32
FairOver: STUMP CREEK
APP 1 MI W OF OCILLA, Irwin, GA
Built 1964 Load: 32.6 t ADT: 1,980
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.