Total bridges
146
Public highway bridges in Jackson County
County profile · official public datasets
Jackson County, FL
146 public highway bridges tracked in the FHWA National Bridge Inventory: 21.2% rated Good, 71.2% Fair, 7.5% Poor.
- 146
- Public bridges
- 21.2%
- Good condition
- 7.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Jackson County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 56th
- of 67 on Poor share
- 7.5%
- Poor-condition share
- 146
- public highway bridges
- 1982
- 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.
Jackson County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Jackson County ranks #56 of 67 Florida counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.5%). Jackson County, Florida contains 146 public highway bridges. Roughly 21.2% are rated “Good,” 71.2% “Fair,” and 7.5% “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
21.2%
31 of 146 rated 7-9
Fair condition
71.2%
104 of 146 rated 5-6
Poor condition
7.5%
11 of 146 rated 4 or below
In-state Poor-share rank
#56 of 67
Among Florida counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 146 NBI-tracked bridges by lowest applicable component rating.
Good 21.2% (31)
Fair 71.2% (104)
Poor 7.5% (11)
Jackson County's Poor-condition bridges carry 25,589 vehicle crossings a day
That is 5.2% of the county's reported daily bridge traffic on 7.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,326 crossings a day against 4,363 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 146 of 146 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
24.7% of Jackson County's bridges have passed the 50-year mark
36 of the 146 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 21.2% 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 91.8% of the county's Poor-condition bridge traffic
US90 SR10 over Chipola River, built 1943, carries 23,500 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 11-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 25,589 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Jackson County's bridges were built
146 bridges with a recorded construction year, grouped by decade
- 1930s 2
1930–1939
2 bridges
- 1940s 7
1940–1949
7 bridges
- 1950s 11
1950–1959
11 bridges
- 1960s 12
1960–1969
12 bridges
- 1970s
1970–1979
31 bridges
- 1980s 11
1980–1989
11 bridges
- 1990s
1990–1999
59 bridges
- 2000s 11
2000–2009
11 bridges
- 2010s 1
2010–2019
1 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1990s, when 59 of the county's bridges still in the inventory were built, which is 40.4% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1982) matches the Florida average (1983).
How Jackson County compares with Florida's closest counties by inventory size
The 5 Florida counties nearest Jackson County in number of bridges, with their condition splits. Its 7.5% Poor share is the 4th-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1987 is 5 years older.
Showing the 5 closest of 66 Florida counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Holmes County | 156 | 30.8% | 51.3% | 17.9% | 1987 |
| Pasco County | 151 | 81.5% | 17.2% | 1.3% | 1994 |
| St. Lucie County | 151 | 74.8% | 22.5% | 2.6% | 1981 |
| Jackson County (this page) | 146 | 21.2% | 71.2% | 7.5% | 1982 |
| St. Johns County | 141 | 61% | 37.6% | 1.4% | 1988 |
| Bay County | 130 | 30.8% | 59.2% | 10% | 1984 |
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 Jackson 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 Jackson County, both outside Florida so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside FL (146 bridges here).
- Dixon County, NE · 146 bridges
- Frio County, TX · 146 bridges
- La Salle County, TX · 146 bridges
- Barren County, KY · 147 bridges
Similar average build year
Nearest mean year-built outside FL (1982 here).
- Oklahoma County, OK · avg 1982 · 1,216 bridges
- Jackson County, MO · avg 1982 · 930 bridges
- Milwaukee County, WI · avg 1982 · 893 bridges
- Champaign County, IL · avg 1982 · 727 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (11)
Cliff Street
PoorOver: Little Creek
0.26 Mi North of Prim Ave, Jackson, FL
Built 1980 Load: 2.1 t ADT: 120
Grissett Road
PoorOver: Stump Creek
1.0 Mi S CR 276/Park Rd, Jackson, FL
Built 1972 Load: 2.9 t ADT: 44
Iron Bridge Road
PoorOver: Pelt Creek
2.0 Miles East of SR73, Jackson, FL
Built 1995 Load: 3.9 t ADT: 22
Bradley Road
PoorOver: Carpenter Sink Creek
0.6 Miles West of SR 69, Jackson, FL
Built 1991 Load: 5.4 t ADT: 39
Dock Road
PoorOver: Little Dry Creek
0.85 Mi East US231/SR75, Jackson, FL
Built 1998 Load: 6.5 t ADT: 50
Prim Avenue
PoorOver: Holmes Creek
0.93 Miles West of SR 77, Jackson, FL
Built 1994 Load: 17.3 t ADT: 72
New Bridge Road
PoorOver: Cowarts Creek
0.6 Miles West of CR 167, Jackson, FL
Built 1992 Load: 20.0 t ADT: 48
US90 SR10
PoorOver: Chipola River
0.6Mi. East of SR73, Jackson, FL
Built 1943 Load: 24.5 t ADT: 23,500
Tobacco Road
PoorOver: Unnamed Slough
1.27 Mi East of Odom Road, Jackson, FL
Built 1995 Load: 24.5 t ADT: 44
CR 278
PoorOver: Chipola River
0.96 Miles East of SR 73, Jackson, FL
Built 1966 Load: 39.9 t ADT: 1,600
Freeman Road
PoorOver: Econfina Creek
1.7 Mi E of US231/SR75, Jackson, FL
Built 1979 Load: 99.9 t ADT: 50
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.