County profile · official public datasets

Vermilion County, LA

261 public highway bridges tracked in the FHWA National Bridge Inventory: 45.6% rated Good, 43.3% Fair, 11.1% Poor.

261
Public bridges
45.6%
Good condition
11.1%
Poor condition

The verdict

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

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

35th
of 64 on Poor share
11.1%
Poor-condition share
261
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.

Vermilion County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Vermilion County ranks #35 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.1%). Vermilion County, Louisiana contains 261 public highway bridges. Roughly 45.6% are rated “Good,” 43.3% “Fair,” and 11.1% “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

261

Public highway bridges in Vermilion County

Good condition

45.6%

119 of 261 rated 7-9

Fair condition

43.3%

113 of 261 rated 5-6

Poor condition

11.1%

29 of 261 rated 4 or below

In-state Poor-share rank

#35 of 64

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

Condition distribution

Share of 261 NBI-tracked bridges by lowest applicable component rating.

Good
45.6% (119)
Fair
43.3% (113)
Poor
11.1% (29)

Vermilion County's Poor-condition bridges carry 60,910 vehicle crossings a day

That is 14.1% of the county's reported daily bridge traffic on 11.1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 2,100 crossings a day against 1,618 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 261 of 261 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

42.1% of Vermilion County's bridges have passed the 50-year mark

110 of the 261 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 45.6% 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 32.5% of the county's Poor-condition bridge traffic

LA0014-B over VERMILION R/ABBEVILLE, built 1964, carries 19,800 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 29-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 60,910 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Vermilion County's bridges were built

261 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2010s, when 69 of the county's bridges still in the inventory were built, which is 26.4% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year (1985) matches the Louisiana average (1982).

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

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

The 5 Louisiana counties nearest Vermilion County in number of bridges, with their condition splits. Its 11.1% Poor share is the 3rd-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1980 is 5 years newer.

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

Bridge inventory size and condition shares for Vermilion County and the 5 Louisiana counties closest to it in inventory size
County Bridges Poor
Washington County 285 11.6%
Acadia County 282 8.9%
Bossier County 270 14.8%
Vermilion County (this page) 261 11.1%
Livingston County 253 9.5%
Jefferson Davis County 240 18.8%

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

Similar inventory size

Nearest county inventories outside LA (261 bridges here).

Similar average build year

Nearest mean year-built outside LA (1985 here).

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

All bridges (261)

LA0697

Fair

Over: STREAM

1.2 MI W. OF LA 343, Vermilion, LA

Built 1976 Load: 38.1 t ADT: 970

LA0697

Fair

Over: STREAM

2.1 MI E. OF LA 343, Vermilion, LA

Built 1976 Load: 38.1 t ADT: 970

LA3147

Fair

Over: DRAINAGE CANAL

3.84 MI S. OF LA 82, Vermilion, LA

Built 1982 Load: 39.0 t ADT: 221

Prairie Rd

Fair

Over: SEVENTH WARD CANAL

2.3 Mi N of Community Rd, Vermilion, LA

Built 2010 Load: 39.9 t ADT: 241

Lopez Rd

Fair

Over: COULEE

0.72 MI. W. OF LA 89, Vermilion, LA

Built 2012 Load: 39.9 t ADT: 400

LA0014

Fair

Over: BAYOU TIGRE

1. E Of LA 14B, Vermilion, LA

Built 1999 Load: 41.1 t ADT: 12,903

LA0014

Fair

Over: COULEE KENNY

1.6 MI E. OF LA 343, Vermilion, LA

Built 1963 Load: 43.5 t ADT: 2,533

LA0035

Fair

Over: BAYOU GRAND MARAIS

0.3 MI N. OF LA 699, Vermilion, LA

Built 1976 Load: 43.5 t ADT: 1,034

LA3147

Fair

Over: PIPELINE CANAL

9.0 MI S. OF LA 82, Vermilion, LA

Built 1982 Load: 44.5 t ADT: 221

LA3147

Fair

Over: OIL FIELD CANAL

8.82 MI S. OF LA 82, Vermilion, LA

Built 1982 Load: 44.5 t ADT: 221

LA0014

Fair

Over: CREEK

2.1 Miles West of LA 91, Vermilion, LA

Built 1958 Load: 51.2 t ADT: 1,717

LA0082

Fair

Over: LANGLINOIS DITCH

5.1 Miles North of LA 14, Vermilion, LA

Built 1963 Load: 74.5 t ADT: 2,000

LA0082

Fair

Over: CREEK

6.4 Miles North of LA 14, Vermilion, LA

Built 1963 Load: 74.5 t ADT: 2,000

S John M Hardy Dr

Good

Over: YOUNGS NORTH COULEE

0.1 Mi S of La 14, Vermilion, LA

Built 1970 Load: 11.3 t ADT: 2,000

Juniper Rd

Good

Over: ROBINS CANAL

0.7 Mi E of LA 3093, Vermilion, LA

Built 2011 Load: 11.8 t ADT: 46

Romeal Rd

Good

Over: SLEDGE CANAL

1.6 Mi W of Joe Rd, Vermilion, LA

Built 1977 Load: 13.9 t ADT: 150

W. Beech Rd

Good

Over: Coulee

1.5 Mi E of Farmers Rd, Vermilion, LA

Built 2023 Load: 15.9 t ADT: 50

S. Aladin Rd

Good

Over: TIGRE BAYOU

0.3 Mi S of Jude Rd, Vermilion, LA

Built 1987 Load: 18.5 t ADT: 324

Aladin Rd

Good

Over: TIGRE BAYOU

0.3 Mi. W of Jude Rd, Vermilion, LA

Built 2013 Load: 20.0 t ADT: 324

Eddie Rd

Good

Over: COULEE

0.6 Mi W of LA 3093, Vermilion, LA

Built 1965 Load: 20.1 t ADT: 125

River Rd

Good

Over: COULEE

0.3 Mi E of US 167, Vermilion, LA

Built 1970 Load: 20.1 t ADT: 250

Suire Rd

Good

Over: LAPORT COULEE

0.1 MI. S OF LA 14, Vermilion, LA

Built 2014 Load: 20.4 t ADT: 574

Prairie Rd

Good

Over: BULL HOLE CANAL

1.2 Mi N of Community Rd, Vermilion, LA

Built 2000 Load: 20.4 t ADT: 241

LA1246

Good

Over: VERMILION RIVER

0.1 MI W. OF LA 82, Vermilion, LA

Built 1992 Load: 20.7 t ADT: 80

G. Simon Rd

Good

Over: QUE DE TORTUE

0.3 Mi N of Gib Rd, Vermilion, LA

Built 2014 Load: 20.9 t ADT: 112

LA0330

Good

Over: Boston Canal

0.4 Mi W of LA 331, Vermilion, LA

Built 1959 Load: 21.7 t ADT: 1,923

LONGLEAF RD

Good

Over: BAYOU

1.9 Mi E of La 13, Vermilion, LA

Built 2013 Load: 22.7 t ADT: 243

LA0014

Good

Over: VINCENT CANAL

0.6 MI W. OF LA 13, Vermilion, LA

Built 1959 Load: 22.7 t ADT: 3,212

LA0014

Good

Over: COULEE BAYOU

2.1 MI E. OF LA 35, Vermilion, LA

Built 1959 Load: 22.7 t ADT: 7,329

Elmo Rd

Good

Over: TIGRE BAYOU

1.02 MI. W. OF LA 330, Vermilion, LA

Built 2012 Load: 23.6 t ADT: 845

LA0330

Good

Over: RAMSEY CANAL

4.58 MI S. OF LA 82, Vermilion, LA

Built 1959 Load: 23.6 t ADT: 1,814

Zaunbrecher Rd.

Good

Over: COULEE

4.4 Mi W of La 91, Vermilion, LA

Built 2015 Load: 23.8 t ADT: 12

LA0700

Good

Over: HUNTER CANAL

0.5 MI E of LA 35, Vermilion, LA

Built 1955 Load: 24.0 t ADT: 1,685

DOTSAY RD

Good

Over: COULEE BATON CANAL

0.4 Mi W of Lionel Rd, Vermilion, LA

Built 2018 Load: 24.5 t ADT: 133

Melrose Rd

Good

Over: GALLEQUE COULEE

0.3 Mi W of La 335, Vermilion, LA

Built 2012 Load: 24.5 t ADT: 77

Wright Rd

Good

Over: COULEE

2.8 Mi S of La 14, Vermilion, LA

Built 1969 Load: 24.5 t ADT: 150

Dalton Rd

Good

Over: Isle Marrone Canal

2.3 Mi W of LA 695, Vermilion, LA

Built 1987 Load: 24.9 t ADT: 830

Romeal Rd

Good

Over: ROBINS CANAL

3.1 Mi W of Joe Rd, Vermilion, LA

Built 2010 Load: 25.9 t ADT: 150

LOCK ACCESS ROAD

Good

Over: BAYOU CHENE

END OF LA 333, Vermilion, LA

Built 1982 Load: 26.6 t ADT: 100

LA0092

Good

Over: COULEE GRANGES

2.43 MI E. OF LA 343, Vermilion, LA

Built 1961 Load: 27.2 t ADT: 5,170

LA0014

Good

Over: DRAINAGE

1.6 MI E of LA 338, Vermilion, LA

Built 1999 Load: 27.5 t ADT: 12,903

NOEL RD

Good

Over: NOEL DITCH

1.7 Mi W of La 694, Vermilion, LA

Built 1965 Load: 27.5 t ADT: 360

Cossinade Rd

Good

Over: Coulee Des Iles

0.6 Mi N. of La 13, Vermilion, LA

Built 2000 Load: 28.4 t ADT: 240

LA3267

Good

Over: YOUNGS NORTH COULEE

0.62 MI S of LA 14, Vermilion, LA

Built 2009 Load: 28.8 t ADT: 3,084

Chestnut Rd

Good

Over: COULEE

0.4 MI. W OF La 708, Vermilion, LA

Built 2011 Load: 30.7 t ADT: 160

Dudley Rd

Good

Over: PARC PERDU BAYOU

0.9 Mi N of Germain Rd, Vermilion, LA

Built 2011 Load: 31.8 t ADT: 966

Jude Rd

Good

Over: BAYOU TIGRE

0.9 MI S OF LA 14, Vermilion, LA

Built 2010 Load: 32.1 t ADT: 1,832

Junius Rd

Good

Over: GALLEQUE COULEE

1.5 Mi W of La 335, Vermilion, LA

Built 1986 Load: 32.1 t ADT: 345

Bluebonnet Rd

Good

Over: COULEE

0.2 MI W OF LA 13, Vermilion, LA

Built 2011 Load: 32.4 t ADT: 105

Dennis Rd

Good

Over: COULEE DES ILES

1.3 Mi W. of La 35, Vermilion, LA

Built 2011 Load: 32.4 t ADT: 46
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.