Total bridges
190
Public highway bridges in Bienville County
County profile · official public datasets
190 public highway bridges tracked in the FHWA National Bridge Inventory: 20% rated Good, 51.6% Fair, 28.4% Poor.
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.
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.
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
Share of 190 NBI-tracked bridges by lowest applicable component rating.
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.
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.
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.
190 bridges with a recorded construction year, grouped by decade
1920–1929
2 bridges
1930–1939
1 bridges
1940–1949
5 bridges
1950–1959
9 bridges
1960–1969
44 bridges
1970–1979
46 bridges
1980–1989
34 bridges
1990–1999
13 bridges
2000–2009
9 bridges
2010–2019
22 bridges
2020–2029
5 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).
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| De Soto County | 201 | 27.9% | 67.2% | 5% | 1980 |
| LaSalle County | 195 | 60% | 34.4% | 5.6% | 1983 |
| Sabine County | 195 | 57.4% | 31.8% | 10.8% | 1983 |
| Webster County | 194 | 21.6% | 53.1% | 25.3% | 1975 |
| Bienville County (this page) | 190 | 20% | 51.6% | 28.4% | 1979 |
| Allen County | 178 | 15.2% | 72.5% | 12.4% | 1983 |
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.
Two NBI-derived peer sets for Bienville County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Nearest county inventories outside LA (190 bridges here).
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.
Over: TRIBUTARY TO SALING BAYO
1.8 MI. NO. OF LA 50, Bienville, LA
Over: TRIBUTARY TO BEAR CREEK
0.2 MI E OF LA 9, Bienville, LA
Over: TRIBUTARY TO SALINE BAYO
1.0 MI. S.E. OF U.S., Bienville, LA
Over: WILLIAMS CREEK
3.6 MI. S.E. OF U.S., Bienville, LA
Over: TRIB. TO BLACKLAKE CREEK
1.0 MI. S.E. OF U.S., Bienville, LA
Over: CREEK
2.0M SW OF LA 797, Bienville, LA
Over: TOPY CREEK
3.3 MI. WEST OF LA 1, Bienville, LA
Over: TOPY CREEK RELIEF
2.79 MI NORTH OF LA 155, Bienville, LA
Over: DRAIN
3.59 MI NORTH OF LA 155, Bienville, LA
Over: SLOUGH BRIDGE
0.6 MI EAST OF LA 154, Bienville, LA
Over: POLAND BRANCH
4.4 MI EAST OF LA 792, Bienville, LA
Over: SIX MILE CREEK
4.7 MI W OF LA 9, Bienville, LA
Over: DRAIN
.01 MI NORTH OF LA 4, Bienville, LA
Over: MILL CREEK
2.3 MI. SOUTH OF LA 155, Bienville, LA
Over: CREEK
1.90 MI SOUTH OF LA 4, Bienville, LA
Over: SALINE BAYOU TRIBUTARY
0.4 M NORTH OF LA 147, Bienville, LA
Over: CROWS CREEK
1.98 MI NORTH OF I-20, Bienville, LA
Over: BLOOMS MILL CREEK
4.3 MI NORTH OF NORTH INT, Bienville, LA
Over: CASTOR CREEK
1.8 MI. EAST OF LA 4, Bienville, LA
Over: BAKER CREEK
2.7 MI. S.E. OF U.S., Bienville, LA
Over: CREEK
3.61 MI SOUTH OF LA 4, Bienville, LA
Over: SPRAWLS MILL CREEK
1.0 MI N. OF LA 155, Bienville, LA
Over: CREEK
0.1M SW OF LA 797, Bienville, LA
Over: TOPY CREEK RELIEF
2.60 MI NORTH OF LA 155, Bienville, LA
Over: CHOCTAW CREEK
1.5 MI W OF LA 147, Bienville, LA
Over: DRY CREEK
0.4 MI S OF LA 507, Bienville, LA
Over: DRY CREEK
2.4 MI. EAST OF LA 4, Bienville, LA
Over: SIX MILE CREEK
2.7 MI. NO. OF LA 4, Bienville, LA
Over: DRAIN
9.4 MI EAST OF LA 154, Bienville, LA
Over: SALINE BAYOU
1.2 MI EAST OF LA 9, Bienville, LA
Over: DRAIN
4.19 MI NORTH OF LA 155, Bienville, LA
Over: DUKEDALL CREEK
1.3 MI NORTH OF LA 508, Bienville, LA
Over: I-20
0.5 MI N OF LA 798-2, Bienville, LA
Over: BRUSH CREEK
3.5 MI NORTH OF LA 4, Bienville, LA
Over: SLOUGH
.57 MI WEST OF LA 794, Bienville, LA
Over: BRUSHY CREEK
3.1 MI N. of LA 516, Bienville, LA
Over: I-20
LA 151 OVER I-20, Bienville, LA
Over: CREEK
3.99 MI WEST OF LA 9, Bienville, LA
Over: LA 519 OVER I 20 ARCADI
LA 519 OVER I-20, Bienville, LA
Over: DRAIN
4.1 MI EAST OF LA 155, Bienville, LA
Over: BURNT CABIN CREEK
1.27 MI SOUTH OF LA 4, Bienville, LA
Over: EDWARDS MILL CREEK
1.0 MI W JCT LA 9, Bienville, LA
Over: BEAR CREEK
.54 MI EAST OF US 80, Bienville, LA
Over: GRAND BAYOU
1.0 MI NORTH OF LA 790, Bienville, LA
Over: SALINE BAYOU
2.0 MI WEST OF LA 9, Bienville, LA
Over: BRANCH
1.2 MI NORTH OF LA 4, Bienville, LA
Over: CANEY CREEK
1.2 MI EAST OF LA 147, Bienville, LA
Over: LA 154 OVER I-20
1.2 MI N OF US 80, Bienville, LA
Over: READHIMER CREEK
2.43 M. N of 155, Bienville, LA
Over: SIX MILE CREEK
1.6 MI NORTH OF LA 4, Bienville, LA
Read our methodology - how this data is sourced, computed, and verified.
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.