Total bridges
70
Public highway bridges in Catahoula County
County profile · official public datasets
Catahoula County, LA
70 public highway bridges tracked in the FHWA National Bridge Inventory: 45.7% rated Good, 45.7% Fair, 8.6% Poor.
- 70
- Public bridges
- 45.7%
- Good condition
- 8.6%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Catahoula County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- Top 38%
- lowest Poor share in state
- 8.6%
- Poor-condition share
- 70
- public highway bridges
- 1984
- 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.
Catahoula County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Catahoula County ranks #24 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.6%). Catahoula County, Louisiana contains 70 public highway bridges. Roughly 45.7% are rated “Good,” 45.7% “Fair,” and 8.6% “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.
Good condition
45.7%
32 of 70 rated 7-9
Fair condition
45.7%
32 of 70 rated 5-6
Poor condition
8.6%
6 of 70 rated 4 or below
In-state Poor-share rank
#24 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 70 NBI-tracked bridges by lowest applicable component rating.
Good 45.7% (32)
Fair 45.7% (32)
Poor 8.6% (6)
Catahoula County's Poor-condition bridges carry 6,193 vehicle crossings a day
That is 10.2% of the county's reported daily bridge traffic on 8.6% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,032 crossings a day against 827 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 70 of 70 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
27.1% of Catahoula County's bridges have passed the 50-year mark
19 of the 70 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 45.7% 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 74.1% of the county's Poor-condition bridge traffic
LA0015 over TENSAS RIVER @ CLAYTON, built 1971, carries 4,592 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 6-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 6,193 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Catahoula County's bridges were built
70 bridges with a recorded construction year, grouped by decade
- 1950s 1
1950–1959
1 bridges
- 1960s
1960–1969
11 bridges
- 1970s
1970–1979
18 bridges
- 1980s
1980–1989
18 bridges
- 1990s
1990–1999
11 bridges
- 2000s 6
2000–2009
6 bridges
- 2010s 4
2010–2019
4 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1970s, when 18 of the county's bridges still in the inventory were built, which is 25.7% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1984) matches the Louisiana average (1982).
How Catahoula County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest Catahoula County in number of bridges, with their condition splits. Its 8.6% Poor share is the 2nd-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1978 is 6 years newer.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| St. Charles County | 82 | 59.8% | 39% | 1.2% | 1981 |
| Iberville County | 80 | 33.8% | 51.3% | 15% | 1975 |
| West Baton Rouge County | 73 | 32.9% | 52.1% | 15.1% | 1969 |
| Catahoula County (this page) | 70 | 45.7% | 45.7% | 8.6% | 1984 |
| Assumption County | 68 | 48.5% | 41.2% | 10.3% | 1984 |
| Red River County | 63 | 22.2% | 47.6% | 30.2% | 1982 |
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 Catahoula 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 Catahoula County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (70 bridges here).
- Jefferson County, FL · 70 bridges
- Jasper County, GA · 70 bridges
- Treutlen County, GA · 70 bridges
- Turner County, GA · 70 bridges
Similar average build year
Nearest mean year-built outside LA (1984 here).
- Hennepin County, MN · avg 1984 · 936 bridges
- Duval County, FL · avg 1984 · 831 bridges
- El Paso County, CO · avg 1984 · 686 bridges
- Bell County, TX · avg 1984 · 660 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (70)
LA0126
GoodOver: FORDS CREEK
6.6 MI SOUTH OF LA 459, Catahoula, LA
Built 1983 Load: 39.0 t ADT: 544
LA0126
GoodOver: BENS CREEK
1.48 M N of LA 8, Catahoula, LA
Built 1983 Load: 39.0 t ADT: 544
LA0923
GoodOver: CREEK
2.2 MI NORTH OF LA 126, Catahoula, LA
Built 1979 Load: 39.0 t ADT: 550
LA0008
GoodOver: YELLOW BRANCH CREEK
0.29 M E of LA 772, Catahoula, LA
Built 1994 Load: 39.9 t ADT: 1,527
E Ratcliff Road
GoodOver: Billys Bayou
2.4 Mi. S. of US 425, Catahoula, LA
Built 2018 Load: 42.1 t ADT: 190
Ratcliff Road
GoodOver: Duck Creek
3.38 Mi. S. of US 425, Catahoula, LA
Built 2018 Load: 42.1 t ADT: 172
LA0008
GoodOver: BIRDS CREEK
3.5 MI EAST OF THE EAST I, Catahoula, LA
Built 1996 Load: 42.6 t ADT: 1,527
LA0008
GoodOver: STOKES CREEK
6.5 MI EAST OF THE EAST I, Catahoula, LA
Built 1996 Load: 42.6 t ADT: 1,527
LA0008
GoodOver: FLATS CREEK
3.8 MI EAST OF US 84, Catahoula, LA
Built 1977 Load: 42.6 t ADT: 1,606
LA0015
GoodOver: CREEK
2.5 MI NORTH OF LA 8, Catahoula, LA
Built 2002 Load: 44.5 t ADT: 4,592
LA0115
GoodOver: CREEK
2.5 MI NORTH OF LA 8, Catahoula, LA
Built 2002 Load: 44.5 t ADT: 4,987
Doughty Rd
GoodOver: Louis Bayou
2.42 M S of LA 922, Catahoula, LA
Built 1997 Load: 45.4 t ADT: 90
Amyx Gravel Pit Rd
GoodOver: SALEM CREEK
1.8 MI N of LA 772, Catahoula, LA
Built 2015 Load: 46.3 t ADT: 100
LA0124
GoodOver: HOOTER CREEK
2.9 MI E OF LA 126, Catahoula, LA
Built 2022 Load: 46.3 t ADT: 117
LA0124
PoorOver: CREEK
2.1 MI NORTH OF LA 3102, Catahoula, LA
Built 1960 Load: 5.4 t ADT: 410
OLSON DR
PoorOver: BAYOU BARRIERE
0.8 MI S OF BARRIERE RD, Catahoula, LA
Built 1960 Load: 10.4 t ADT: 300
LA0124
PoorOver: BROKE LEG BAYOU
0.6 MI NORTH OF LA 3102, Catahoula, LA
Built 1960 Load: 20.9 t ADT: 287
LA 124
PoorOver: LARTO LAKE BAYOU
27.4 MI S OF US 84, Catahoula, LA
Built 1958 Load: 27.2 t ADT: 514
Doughty Rd
PoorOver: HAHA BAYOU
3.2 M NW of LA 922, Catahoula, LA
Built 1987 Load: 32.4 t ADT: 90
LA0015
PoorOver: TENSAS RIVER @ CLAYTON
.01 MI WEST OF LA 566, Catahoula, LA
Built 1971 Load: 35.4 t ADT: 4,592
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.