Total bridges
58
Public highway bridges in Cameron County
County profile · official public datasets
Cameron County, LA
58 public highway bridges tracked in the FHWA National Bridge Inventory: 19% rated Good, 55.2% Fair, 25.9% Poor.
- 58
- Public bridges
- 19%
- Good condition
- 25.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Cameron County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- 61st
- of 64 on Poor share
- 25.9%
- Poor-condition share
- 58
- public highway bridges
- 1985
- 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.
Cameron County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Cameron County ranks #61 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 25.9%). Cameron County, Louisiana contains 58 public highway bridges. Roughly 19% are rated “Good,” 55.2% “Fair,” and 25.9% “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
19%
11 of 58 rated 7-9
Fair condition
55.2%
32 of 58 rated 5-6
Poor condition
25.9%
15 of 58 rated 4 or below
In-state Poor-share rank
#61 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 58 NBI-tracked bridges by lowest applicable component rating.
Good 19% (11)
Fair 55.2% (32)
Poor 25.9% (15)
Cameron County's Poor-condition bridges carry 23,289 vehicle crossings a day
That is 31.6% of the county's reported daily bridge traffic on 25.9% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,553 crossings a day against 1,418 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 58 of 58 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
37.9% of Cameron County's bridges have passed the 50-year mark
22 of the 58 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 19% 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 19.9% of the county's Poor-condition bridge traffic
LA0385 over S FORK BLACK BAYOU, built 1954, carries 4,633 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 23,289 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Cameron County's bridges were built
58 bridges with a recorded construction year, grouped by decade
- 1950s
1950–1959
7 bridges
- 1960s
1960–1969
14 bridges
- 1970s 5
1970–1979
5 bridges
- 1980s
1980–1989
6 bridges
- 1990s
1990–1999
6 bridges
- 2000s
2000–2009
10 bridges
- 2010s
2010–2019
9 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1960s, when 14 of the county's bridges still in the inventory were built, which is 24.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1985) matches the Louisiana average (1982).
How Cameron County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest Cameron County in number of bridges, with their condition splits. Its 25.9% Poor share is the 4th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1979 is 6 years newer.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Assumption County | 68 | 48.5% | 41.2% | 10.3% | 1984 |
| Red River County | 63 | 22.2% | 47.6% | 30.2% | 1982 |
| Cameron County (this page) | 58 | 19% | 55.2% | 25.9% | 1985 |
| East Carroll County | 55 | 29.1% | 50.9% | 20% | 1980 |
| Tensas County | 52 | 57.7% | 38.5% | 3.8% | 1979 |
| Pointe Coupee County | 50 | 22% | 52% | 26% | 1970 |
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 Cameron 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 Cameron County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (58 bridges here).
- Wrangell City and County, AK · 58 bridges
- Jeff Davis County, GA · 58 bridges
- Putnam County, GA · 58 bridges
- Union County, IN · 58 bridges
Similar average build year
Nearest mean year-built outside LA (1985 here).
- Hillsborough County, FL · avg 1985 · 840 bridges
- Lancaster County, NE · avg 1985 · 661 bridges
- Nueces County, TX · avg 1985 · 528 bridges
- Grayson County, TX · avg 1985 · 513 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (32)
S. ALLADIN RD.
FairOver: LULU CANAL
NO. 664 0.65 MI. S, Cameron, LA
Built 1964 Load: 13.3 t ADT: 27
N PUMPKIN RDGE RD
FairOver: CATTLE CROSSING
2.7 MI N of INT LA 82, Cameron, LA
Built 1976 Load: 15.2 t ADT: 658
LA0384
FairOver: ICWW-SWEET/GRAND LAKE
0.9 MI. W OF INT LA 385, Cameron, LA
Built 1964 Load: 15.4 t ADT: 1,601
LA0717
FairOver: KLONDIKE CANAL
5.6 MI W of LA 14, Cameron, LA
Built 1966 Load: 17.2 t ADT: 511
OFF HIGHWAY 27
FairOver: ROADSIDE CANAL
NATURE TRAIL, Cameron, LA
Built 1985 Load: 20.9 t ADT: 76
S PUMPKIN RIDGE RD
FairOver: CATTLE CROSSING
1.0 MI N OF LA 82, Cameron, LA
Built 1976 Load: 25.3 t ADT: 658
N. ALLADIN RD.
FairOver: CANAL
0.05 MI. W. OF INT. LA 27, Cameron, LA
Built 1964 Load: 25.4 t ADT: 90
LAKE BREEZE RD.
FairOver: CANAL
0.1 MI. E. OF INT. LA 27, Cameron, LA
Built 1964 Load: 25.4 t ADT: 832
LA0027
FairOver: CANAL
4.58 MI. N OF INT LA1143, Cameron, LA
Built 1974 Load: 26.2 t ADT: 3,506
LA0384
FairOver: DRAIN
3.1 MI N of LA1144, Cameron, LA
Built 2004 Load: 30.5 t ADT: 195
LA0082
FairOver: SABINE LAKE
LA 82 @ TEXAS LINE, Cameron, LA
Built 2010 Load: 32.4 t ADT: 1,900
LA0082
FairOver: NORTH LABOVE BAYOU
1.2 MI. SOUTH OF LA 1143, Cameron, LA
Built 2013 Load: 32.4 t ADT: 2,899
LA0027
FairOver: DRAIN
2.2 MI E OF LA 1142, Cameron, LA
Built 1953 Load: 32.4 t ADT: 1,696
LA0027
FairOver: CREOLE CANAL
0.01 MI W of LA 1143, Cameron, LA
Built 1955 Load: 32.4 t ADT: 2,194
LA0027
FairOver: DRAIN
0.98 MI. NORTH OF LA 384, Cameron, LA
Built 1957 Load: 32.4 t ADT: 2,488
FRUGE RD.
FairOver: DRAIN
0.5 MI N of LA 384, Cameron, LA
Built 1988 Load: 32.7 t ADT: 248
OFF HIGHWAY 27
FairOver: ROADSIDE CANAL
POOLS 1A/1B, Cameron, LA
Built 1985 Load: 35.4 t ADT: 58
LA0717
FairOver: KLONDIKE CANAL
1.4 MI. W OF LA 14, Cameron, LA
Built 1960 Load: 39.9 t ADT: 511
TROSCLAIR RD.
FairOver: CREOLE CANAL
.01 MI W of LA 82, Cameron, LA
Built 2006 Load: 40.2 t ADT: 334
LA0384
FairOver: NORTH CANAL
4.5 MI E of LA27, Cameron, LA
Built 1985 Load: 40.8 t ADT: 109
LA0027
FairOver: BIG CROSS CREEK
7.1 MI N of LA 82, Cameron, LA
Built 1999 Load: 41.7 t ADT: 1,226
LA0027
FairOver: LITTLE CROSS CREEK
9.6 MI N of LA 82, Cameron, LA
Built 1999 Load: 41.7 t ADT: 1,226
LA0027
FairOver: HOG ISLAND GULLY
12.78 MI. N OF INT LA82, Cameron, LA
Built 2000 Load: 41.7 t ADT: 1,226
LA0027
FairOver: LONG POINT BAYOU
14.24 MI. N OF INT LA82, Cameron, LA
Built 2000 Load: 41.7 t ADT: 1,226
LA0027
FairOver: KAYO BAYOU
14.5 MI N of LA82, Cameron, LA
Built 2000 Load: 41.7 t ADT: 1,226
LA0027
FairOver: CANAL
1.21 MI. N OF INT LA1143, Cameron, LA
Built 1998 Load: 42.6 t ADT: 2,575
LA0027
FairOver: CANAL
3.06 MI. N OF INT LA1143, Cameron, LA
Built 1998 Load: 42.6 t ADT: 2,575
LA0027
FairOver: FIRST BAYOU
2.1 MI N of LA 82, Cameron, LA
Built 1999 Load: 47.2 t ADT: 1,226
LA0027
FairOver: SECOND BAYOU
3.5 MI N of LA 82, Cameron, LA
Built 1999 Load: 47.2 t ADT: 1,226
MERMENTAU RIVER RD
FairOver: KINGS BAYOU
0.60 MILES NORTH OF LA 82, Cameron, LA
Built 2015 Load: 50.5 t ADT: 82
SWEETLAKE CAMP RD.
FairOver: CREEK
0.8 MI S OF LA 384, Cameron, LA
Built 2015 Load: 50.5 t ADT: 128
CHENIER PERDUE RD.
FairOver: LITTLE CHENIER BAYOU
0.01 MILES E OF LA 1143, Cameron, LA
Built 2015 Load: 51.8 t ADT: 341
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.