County profile · official public datasets

Bienville County, LA

190 public highway bridges tracked in the FHWA National Bridge Inventory: 20% rated Good, 51.6% Fair, 28.4% Poor.

190
Public bridges
20%
Good condition
28.4%
Poor condition

The verdict

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

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

63rd
of 64 on Poor share
28.4%
Poor-condition share
190
public highway bridges
1979
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.

Bienville County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Bienville County ranks #63 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 28.4%). Bienville County, Louisiana contains 190 public highway bridges. Roughly 20% are rated “Good,” 51.6% “Fair,” and 28.4% “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

190

Public highway bridges in Bienville County

Good condition

20%

38 of 190 rated 7-9

Fair condition

51.6%

98 of 190 rated 5-6

Poor condition

28.4%

54 of 190 rated 4 or below

In-state Poor-share rank

#63 of 64

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

Condition distribution

Share of 190 NBI-tracked bridges by lowest applicable component rating.

Good
20% (38)
Fair
51.6% (98)
Poor
28.4% (54)

Bienville County's Poor-condition bridges carry 118,404 vehicle crossings a day

That is 11.9% of the county's reported daily bridge traffic on 28.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,193 crossings a day against 642 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 190 of 190 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

41.6% of Bienville County's bridges have passed the 50-year mark

79 of the 190 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 20% 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 31.7% of the county's Poor-condition bridge traffic

I0020 over CROWS CR RELIEF, built 1960, carries 37,514 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 54-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 118,404 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Bienville County's bridges were built

190 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 46 of the county's bridges still in the inventory were built, which is 24.2% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1979) matches the Louisiana average (1982).

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

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

The 5 Louisiana counties nearest Bienville County in number of bridges, with their condition splits. Its 28.4% Poor share is the 6th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1981 is in line with the group.

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

Bridge inventory size and condition shares for Bienville County and the 5 Louisiana counties closest to it in inventory size
County Bridges Poor
De Soto County 201 5%
LaSalle County 195 5.6%
Sabine County 195 10.8%
Webster County 194 25.3%
Bienville County (this page) 190 28.4%
Allen County 178 12.4%

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

Similar inventory size

Nearest county inventories outside LA (190 bridges here).

Similar average build year

Nearest mean year-built outside LA (1979 here).

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

All bridges (190)

LA0154

Fair

Over: CREEK

0.8 MI N. of LA 516, Bienville, LA

Built 1972 Load: 38.1 t ADT: 429

LA0793

Fair

Over: SLOUGH

.93 MI WEST OF LA 794, Bienville, LA

Built 1977 Load: 38.1 t ADT: 125

LA0154

Fair

Over: BLACK LAKE RELIEF

.57 MI NORTH OF US 80, Bienville, LA

Built 1971 Load: 38.2 t ADT: 1,489

LA0009

Fair

Over: LA 9 OVER I-20 @ ARCADIA

0.5 MI N. OF US 80, Bienville, LA

Built 1964 Load: 39.0 t ADT: 4,151

LA0517

Fair

Over: BEAR CREEK

0.06 MI W JCT LA 9, Bienville, LA

Built 1983 Load: 39.0 t ADT: 301

LA0516

Fair

Over: CREEK

2.64 MI EAST OF LA 154, Bienville, LA

Built 1980 Load: 39.0 t ADT: 178

LA0790

Fair

Over: GRAND BAYOU

0.5 MI WEST OF US 371, Bienville, LA

Built 1983 Load: 39.0 t ADT: 50

Pleasant Rd

Fair

Over: FOUR MILE BAYOU

1.8 MI N.E. OF LA 4, Bienville, LA

Built 1986 Load: 39.2 t ADT: 70

Bear Creek Rd

Fair

Over: BEAR CREEK ROAD

1.9 MI NORTH OF LA 507, Bienville, LA

Built 1986 Load: 39.2 t ADT: 150

LA0516

Fair

Over: DAVIS CREEK

1.4 MI EAST OF US 371, Bienville, LA

Built 1961 Load: 39.9 t ADT: 177

I0020

Fair

Over: BEAR CR RELIEF

.32 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: BEAR CREEK

.54 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: CANEY CREEK

3.5 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: CANEY CREEK

3.5 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: DRAIN

3.9 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: DRAIN

3.9 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: BLACK LAKE CREEK

1.31 M WEST OF JCT OF LA9, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

I0020

Fair

Over: BLACK LAKE CREEK

1.31 M WEST OF JCT OF LA9, Bienville, LA

Built 1964 Load: 39.9 t ADT: 37,514

US0080

Fair

Over: BEAR CREEK

1.0 MI SOUTH OF I-20, Bienville, LA

Built 1984 Load: 40.8 t ADT: 780

US0080

Fair

Over: LEATHERMAN CREEK

4.0 MI SOUTH OF I-20, Bienville, LA

Built 1984 Load: 40.8 t ADT: 780

US0080

Fair

Over: BRINSON CREEK

4.8 MI SOUTH OF I-20, Bienville, LA

Built 1984 Load: 40.8 t ADT: 780

US0080

Fair

Over: BLACK LAKE CREEK

5.2 MI SOUTH OF I-20, Bienville, LA

Built 1984 Load: 40.8 t ADT: 780

LA0004

Fair

Over: BLACK LAKE BAYOU

6.3 MI EAST OF LA 154, Bienville, LA

Built 1982 Load: 40.8 t ADT: 1,087

LA0004

Fair

Over: BLACK LAKE BAYOU RELIEF

6.7 MI EAST OF LA 154, Bienville, LA

Built 1982 Load: 40.8 t ADT: 1,087

LA0004

Fair

Over: SLOUGH BRIDGE

7.0 MI EAST OF LA 154, Bienville, LA

Built 1982 Load: 40.8 t ADT: 1,087

LA0507

Fair

Over: KEPLER CREEK

2.9 MI EAST OF LA 154, Bienville, LA

Built 1986 Load: 40.8 t ADT: 396

LA0507

Fair

Over: SALINE BAYOU

1.0 MILE EAST OF LA HWY 9, Bienville, LA

Built 1986 Load: 40.8 t ADT: 540

LA0793

Fair

Over: CROWS CREEK

2.0 MI WEST OF LA 794, Bienville, LA

Built 1986 Load: 40.8 t ADT: 125

LA0009

Fair

Over: BLACK LAKE CREEK

1.2 MI NORTH OF I-20, Bienville, LA

Built 1975 Load: 42.6 t ADT: 2,360

LA0153

Fair

Over: CASTOR CREEK

8.34 MI NORTH OF LA 155, Bienville, LA

Built 1974 Load: 42.6 t ADT: 1,377

LA0153

Fair

Over: CASTOR CR. RELIEF

8.62 MI NORTH OF LA 155, Bienville, LA

Built 1974 Load: 42.6 t ADT: 1,377

I0020

Fair

Over: LEATHERMAN CREEK

1.86 MI WEST OF LA 154, Bienville, LA

Built 1964 Load: 42.6 t ADT: 37,514

I0020

Fair

Over: LEATHERMAN CREEK

1.86 MI WEST OF LA 154, Bienville, LA

Built 1964 Load: 42.6 t ADT: 37,514

US0080

Fair

Over: BLACK LAKE CREEK

4.67 MI E. OF LA 154, Bienville, LA

Built 1995 Load: 43.5 t ADT: 2,140

US0080

Fair

Over: SALINE BAYOU RELIEF

1.02 MI. E. OF JUNC. LA 9, Bienville, LA

Built 1995 Load: 43.5 t ADT: 2,378

US0080

Fair

Over: SALINE BAYOU

1.62 MI. E. OF JUNC. LA 9, Bienville, LA

Built 1995 Load: 43.5 t ADT: 2,378

LA0154

Fair

Over: BLACK LAKE CREEK

.64 MI NORTH OF US 80, Bienville, LA

Built 1971 Load: 43.5 t ADT: 1,489

I0020

Fair

Over: BEAR CR RELIEF

.32 MI EAST OF US 80, Bienville, LA

Built 1964 Load: 43.5 t ADT: 37,514

I0020

Fair

Over: SALINE BAYOU

3.1 MI EAST OF LA 9, Bienville, LA

Built 1963 Load: 49.9 t ADT: 37,514

LA0154

Fair

Over: BRANCH

0.18 MI S OF LA 516, Bienville, LA

Built 1951 Load: 50.5 t ADT: 429

I0020

Fair

Over: BLACK LAKE BAYOU

.01 MI EAST WEBSTER/BIENV, Bienville, LA

Built 1960 Load: 51.7 t ADT: 37,514

I0020

Fair

Over: BLACK LAKE BAYOU

.01 MI EAST WEBSTER/BIENV, Bienville, LA

Built 1960 Load: 51.7 t ADT: 37,514

I0020

Fair

Over: CROWS CR RELIEF

0.30M EAST WEBSTER PH, Bienville, LA

Built 1960 Load: 51.7 t ADT: 37,514

LA0004

Fair

Over: CARTER BRANCH

6.78 MI NE JCT US 71, Bienville, LA

Built 1983 Load: 55.7 t ADT: 1,270

Punkin Center Rd

Fair

Over: TOPY CREEK

3.0 MI. EAST OF LA 153, Bienville, LA

Built 1986 Load: 56.7 t ADT: 120

LA0796

Fair

Over: DUKEDALL CREEK

0.23 MI E OF LA 508, Bienville, LA

Built 1989 Load: 57.2 t ADT: 472

LA0507

Fair

Over: BLACKLAKE BAYOU RELIEF

4.31 MI WEST OF LA 153, Bienville, LA

Built 2000 Load: 58.1 t ADT: 582

LA0154

Fair

Over: CANAL

9.00 MI EAST OF US 71, Bienville, LA

Built 2003 Load: 74.5 t ADT: 1,559

Madden Mill Crk Rd

Good

Over: MADDEN MILL CREEK

2.6 MI NORTH OF LA 154, Bienville, LA

Built 1986 Load: 27.9 t ADT: 70

Foster Arbor Rd

Good

Over: TOPY CREEK

3.1 MI. WEST OF LA 153, Bienville, LA

Built 2000 Load: 28.2 t ADT: 100
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.