County profile · official public datasets

Red River County, LA

63 public highway bridges tracked in the FHWA National Bridge Inventory: 22.2% rated Good, 47.6% Fair, 30.2% Poor.

63
Public bridges
22.2%
Good condition
30.2%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Red River County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

64th
of 64 on Poor share
30.2%
Poor-condition share
63
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.

Red River County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Red River County ranks #64 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 30.2%). Red River County, Louisiana contains 63 public highway bridges. Roughly 22.2% are rated “Good,” 47.6% “Fair,” and 30.2% “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.

Total bridges

63

Public highway bridges in Red River County

Good condition

22.2%

14 of 63 rated 7-9

Fair condition

47.6%

30 of 63 rated 5-6

Poor condition

30.2%

19 of 63 rated 4 or below

In-state Poor-share rank

#64 of 64

Among Louisiana counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 63 NBI-tracked bridges by lowest applicable component rating.

Good
22.2% (14)
Fair
47.6% (30)
Poor
30.2% (19)

Red River County's Poor-condition bridges carry 15,471 vehicle crossings a day

That is 21.9% of the county's reported daily bridge traffic on 30.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 814 crossings a day against 379 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 63 of 63 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

30.2% of Red River County's bridges have passed the 50-year mark

19 of the 63 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 22.2% 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 13% of the county's Poor-condition bridge traffic

US0084 over BAYOU PIERRE, built 1955, carries 2,013 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 19-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 15,471 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Red River County's bridges were built

63 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 26 of the county's bridges still in the inventory were built, which is 41.3% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1982) matches the Louisiana average (1982).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Red River County compares with Louisiana's closest counties by inventory size

The 5 Louisiana counties nearest Red River County in number of bridges, with their condition splits. Its 30.2% Poor share is the 6th-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1980 is in line with the group.

Showing the 5 closest of 63 Louisiana counties eligible for comparison.

Bridge inventory size and condition shares for Red River County and the 5 Louisiana counties closest to it in inventory size
County Bridges Poor
West Baton Rouge County 73 15.1%
Catahoula County 70 8.6%
Assumption County 68 10.3%
Red River County (this page) 63 30.2%
Cameron County 58 25.9%
East Carroll County 55 20%

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 Red River 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 Red River County, both outside Louisiana so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside LA (63 bridges here).

Similar average build year

Nearest mean year-built outside LA (1982 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

Good-condition bridges (14)

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.