Total bridges
172
Public highway bridges in Marshall County
County profile · official public datasets
Marshall County, AL
172 public highway bridges tracked in the FHWA National Bridge Inventory: 38.4% rated Good, 52.9% Fair, 8.7% Poor.
- 172
- Public bridges
- 38.4%
- Good condition
- 8.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Marshall County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 63rd
- of 67 on Poor share
- 8.7%
- Poor-condition share
- 172
- public highway bridges
- 1970
- 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.
Marshall County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Marshall County ranks #63 of 67 Alabama counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.7%). Marshall County, Alabama contains 172 public highway bridges. Roughly 38.4% are rated “Good,” 52.9% “Fair,” and 8.7% “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
38.4%
66 of 172 rated 7-9
Fair condition
52.9%
91 of 172 rated 5-6
Poor condition
8.7%
15 of 172 rated 4 or below
In-state Poor-share rank
#63 of 67
Among Alabama counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 172 NBI-tracked bridges by lowest applicable component rating.
Good 38.4% (66)
Fair 52.9% (91)
Poor 8.7% (15)
Marshall County's Poor-condition bridges carry 3,357 vehicle crossings a day
That is 0.8% of the county's reported daily bridge traffic on 8.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 224 crossings a day against 1,773 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 172 of 172 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
61% of Marshall County's bridges have passed the 50-year mark
105 of the 172 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 38.4% 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.
One structure carries 25.3% of the county's Poor-condition bridge traffic
COUNTY HWY 1131 over SLAB CREEK, built 1958, carries 850 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 15-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 3,357 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Marshall County's bridges were built
172 bridges with a recorded construction year, grouped by decade
- 1920s 5
1920–1929
5 bridges
- 1930s
1930–1939
17 bridges
- 1940s 9
1940–1949
9 bridges
- 1950s
1950–1959
40 bridges
- 1960s
1960–1969
26 bridges
- 1970s 15
1970–1979
15 bridges
- 1980s 13
1980–1989
13 bridges
- 1990s
1990–1999
18 bridges
- 2000s 15
2000–2009
15 bridges
- 2010s 12
2010–2019
12 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1950s, when 40 of the county's bridges still in the inventory were built, which is 23.3% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1970) matches the Alabama average (1974).
How Marshall County compares with Alabama's closest counties by inventory size
The 5 Alabama counties nearest Marshall County in number of bridges, with their condition splits. Its 8.7% Poor share is the 5th-lowest of these 6. Its average build year of 1970 against a peer-group mean of 1974 is in line with the group.
Showing the 5 closest of 66 Alabama counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Hale County | 177 | 49.2% | 45.8% | 5.1% | 1972 |
| Colbert County | 172 | 31.4% | 66.9% | 1.7% | 1972 |
| Marshall County (this page) | 172 | 38.4% | 52.9% | 8.7% | 1970 |
| Crenshaw County | 171 | 45% | 53.2% | 1.8% | 1978 |
| Pike County | 169 | 59.8% | 39.1% | 1.2% | 1975 |
| Wilcox County | 168 | 29.2% | 57.1% | 13.7% | 1974 |
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 Marshall 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 Marshall County, both outside Alabama so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside AL (172 bridges here).
- Moultrie County, IL · 172 bridges
- Newton County, IN · 172 bridges
- Pike County, IN · 172 bridges
- Houston County, MN · 172 bridges
Similar average build year
Nearest mean year-built outside AL (1970 here).
- Hamilton County, OH · avg 1970 · 783 bridges
- Yavapai County, AZ · avg 1970 · 543 bridges
- Garfield County, OK · avg 1970 · 504 bridges
- San Luis Obispo County, CA · avg 1970 · 401 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (15)
COUNTY HWY 1175
PoorOver: BIG SPRING CREEK
841 FT E JCT 79, Marshall, AL
Built 1925 Load: 0.0 t ADT: 30
COUNTY HWY 1291
PoorOver: BRANCH
3755 FT N JCT 1464, Marshall, AL
Built 1938 Load: 0.0 t ADT: 50
COCHRAN AVE.
PoorOver: TURKEY CREEK
Cochran Avenue, Marshall, AL
Built 1974 Load: 0.0 t ADT: 700
COUNTY HWY 1140
PoorOver: CREEK
2611 FT S JCT 1096, Marshall, AL
Built 1925 Load: 1.8 t ADT: 100
COUNTY HWY 1178
PoorOver: BIG SPRING CREEK
40 FT E JCT 79, Marshall, AL
Built 1958 Load: 1.8 t ADT: 52
CO RD 1214
PoorOver: BROCK BRANCH
3M N HWY 69, Marshall, AL
Built 1958 Load: 1.8 t ADT: 115
COUNTY ROAD 75A
PoorOver: TURKEY CREEK
250FT SE ALA HWY 75, Marshall, AL
Built 1965 Load: 1.8 t ADT: 5
Bethsaida Rd
PoorOver: Horseshoe Creek
2900 FT SE AL HWY 168, Marshall, AL
Built 1965 Load: 1.8 t ADT: 100
WOLF CREEK RD.
PoorOver: WOLF CREEK
Wolf Creek Road, Marshall, AL
Built 1985 Load: 2.7 t ADT: 100
COUNTY HWY 1415
PoorOver: BERRY BRANCH
639 FT N JCT 1312, Marshall, AL
Built 1951 Load: 3.6 t ADT: 280
COUNTY HWY 1102
PoorOver: CLEAR CREEK
5106 FT S JCT 1096, Marshall, AL
Built 1974 Load: 3.6 t ADT: 75
COUNTY ROAD 1222
PoorOver: Peachtree Creek
1M S CO RD 1211, Marshall, AL
Built 1990 Load: 9.1 t ADT: 100
COUNTY HWY 1131
PoorOver: SLAB CREEK
5996 FT S JCT 1073, Marshall, AL
Built 1958 Load: 10.2 t ADT: 850
COUNTY HIGHWAY115
PoorOver: SLAB CREEK
4170 FT N JCT 1073, Marshall, AL
Built 1960 Load: 11.8 t ADT: 200
GEORGE WALLACE DR
PoorOver: DRUM CREEK
George Wallace Drive, Marshall, AL
Built 1997 Load: 13.7 t ADT: 600
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.