Total bridges
126
Public highway bridges in Bibb County
County profile · official public datasets
Bibb County, AL
126 public highway bridges tracked in the FHWA National Bridge Inventory: 45.2% rated Good, 54% Fair, 0.8% Poor.
- 126
- Public bridges
- 45.2%
- Good condition
- 0.8%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Bibb 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 13%
- lowest Poor share in state
- 0.8%
- Poor-condition share
- 126
- public highway bridges
- 1965
- 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.
Bibb County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Bibb County ranks #9 of 67 Alabama counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.8%). Bibb County, Alabama contains 126 public highway bridges. Roughly 45.2% are rated “Good,” 54% “Fair,” and 0.8% “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
45.2%
57 of 126 rated 7-9
Fair condition
54%
68 of 126 rated 5-6
Poor condition
0.8%
1 of 126 rated 4 or below
In-state Poor-share rank
#9 of 67
Among Alabama counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 126 NBI-tracked bridges by lowest applicable component rating.
Good 45.2% (57)
Fair 54% (68)
Poor 0.8% (1)
Bibb County's Poor-condition bridges carry 50 vehicle crossings a day
That is 0% of the county's reported daily bridge traffic on 0.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 50 crossings a day against 1,135 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 126 of 126 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
63.5% of Bibb County's bridges have passed the 50-year mark
80 of the 126 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 45.2% 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 100% of the county's Poor-condition bridge traffic
726 over RAGLAND BRANCH, built 1965, carries 50 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 50 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Bibb County's bridges were built
126 bridges with a recorded construction year, grouped by decade
- 1920s
1920–1929
11 bridges
- 1930s 5
1930–1939
5 bridges
- 1940s
1940–1949
16 bridges
- 1950s
1950–1959
27 bridges
- 1960s
1960–1969
21 bridges
- 1970s 7
1970–1979
7 bridges
- 1980s
1980–1989
21 bridges
- 1990s
1990–1999
12 bridges
- 2000s 4
2000–2009
4 bridges
- 2010s 1
2010–2019
1 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1950s, when 27 of the county's bridges still in the inventory were built, which is 21.4% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year is 1965, 9 years older than the Alabama average of 1974.
How Bibb County compares with Alabama's closest counties by inventory size
The 5 Alabama counties nearest Bibb County in number of bridges, with their condition splits. Its 0.8% Poor share is the 2nd-lowest of these 6. Its average build year of 1965 against a peer-group mean of 1972 is 7 years older.
Showing the 5 closest of 66 Alabama counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Bullock County | 136 | 20.6% | 77.9% | 1.5% | 1970 |
| Henry County | 133 | 41.4% | 58.6% | 0% | 1975 |
| Clay County | 129 | 25.6% | 67.4% | 7% | 1966 |
| Coosa County | 126 | 20.6% | 75.4% | 4% | 1970 |
| Bibb County (this page) | 126 | 45.2% | 54% | 0.8% | 1965 |
| Autauga County | 118 | 39% | 58.5% | 2.5% | 1977 |
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 Bibb 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 Bibb County, both outside Alabama so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside AL (126 bridges here).
- Lawrence County, AR · 126 bridges
- Coffee County, GA · 126 bridges
- Twin Falls County, ID · 126 bridges
- Iron County, MO · 126 bridges
Similar average build year
Nearest mean year-built outside AL (1965 here).
- Windsor County, VT · avg 1965 · 483 bridges
- Bedford County, PA · avg 1965 · 417 bridges
- Crawford County, PA · avg 1965 · 399 bridges
- Harper County, KS · avg 1965 · 372 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (68)
US 82
FairOver: Hubbard Springs Branch
0.1 MI E TUSC CO LINE, Bibb, AL
Built 1929 Load: 38.9 t ADT: 6,350
AL 382
FairOver: UT SANDY CREEK
3.3 MI E OF CENTREVILLE, Bibb, AL
Built 1935 Load: 42.9 t ADT: 4,220
BIBB CO.44
FairOver: YEAGER BRANCH
S.W.BIBB NEAR P.C.LCO.44, Bibb, AL
Built 1980 Load: 43.0 t ADT: 85
AL 219
FairOver: GULLEY CREEK
0.4 MI N CO RD 51, Bibb, AL
Built 1957 Load: 43.5 t ADT: 1,090
731
FairOver: AFFONEE CREEK
OAKMULGEE DISTRICT, Bibb, AL
Built 1987 Load: 43.7 t ADT: 50
AL 5
FairOver: HILL CREEK
WEST BLOCTON, Bibb, AL
Built 1957 Load: 53.1 t ADT: 4,897
AL 139
FairOver: UT SIXMILE CREEK
4.3 MI N OF RANDOLPH, Bibb, AL
Built 1958 Load: 53.3 t ADT: 1,575
AL 25
FairOver: UT SIXMILE CREEK
5.5 MI S SHELBY CO LINE, Bibb, AL
Built 1940 Load: 61.9 t ADT: 2,750
AL 25
FairOver: UT SIXMILE CREEK
6.5 MI S SHELBY CO LINE, Bibb, AL
Built 1940 Load: 64.7 t ADT: 2,850
AL 5
FairOver: CONGO CREEK
1.6 MI N JCT SR 25, Bibb, AL
Built 1928 Load: 72.8 t ADT: 5,141
AL 5
FairOver: CONGO CREEK RELIEF
1.6 MI N JCT SR 25, Bibb, AL
Built 1928 Load: 76.6 t ADT: 5,141
AL 25
FairOver: MACK BRANCH
0.5 MI N PONDVILLE, Bibb, AL
Built 1954 Load: 79.4 t ADT: 600
US 11
FairOver: Banks Creek
0.1 MI N TUSC CO LINE, Bibb, AL
Built 1945 Load: 79.7 t ADT: 4,650
AL 25
FairOver: Smith Creek
CENTREVILLE, Bibb, AL
Built 1940 Load: 85.3 t ADT: 5,520
F.A.S.17
FairOver: BLACK CREEK
7.6MI N AL 15 MARVLRD, Bibb, AL
Built 1932 Load: 88.9 t ADT: 135
AL 5
FairOver: UT BLUE GIRTH CREEK
1.0 MI N OF PERRY CO LINE, Bibb, AL
Built 1942 Load: 88.9 t ADT: 3,201
AL 139
FairOver: UT ELAM CREEK
0.3 MI N CHILTON CO LINE, Bibb, AL
Built 1960 Load: 88.9 t ADT: 1,356
US 82
FairOver: Mooney Creek
2.4 MI E TUSC CO LINE, Bibb, AL
Built 1929 Load: 88.9 t ADT: 6,350
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.