Total bridges
207
Public highway bridges in Richland County
County profile · official public datasets
Richland County, LA
207 public highway bridges tracked in the FHWA National Bridge Inventory: 21.3% rated Good, 67.6% Fair, 11.1% Poor.
- 207
- Public bridges
- 21.3%
- Good condition
- 11.1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Richland County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 36th
- of 64 on Poor share
- 11.1%
- Poor-condition share
- 207
- 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.
Richland County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Richland County ranks #36 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.1%). Richland County, Louisiana contains 207 public highway bridges. Roughly 21.3% are rated “Good,” 67.6% “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.
Good condition
21.3%
44 of 207 rated 7-9
Fair condition
67.6%
140 of 207 rated 5-6
Poor condition
11.1%
23 of 207 rated 4 or below
In-state Poor-share rank
#36 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 207 NBI-tracked bridges by lowest applicable component rating.
Good 21.3% (44)
Fair 67.6% (140)
Poor 11.1% (23)
Richland County's Poor-condition bridges carry 12,496 vehicle crossings a day
That is 1.1% of the county's reported daily bridge traffic on 11.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 543 crossings a day against 638 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 207 of 207 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
53.6% of Richland County's bridges have passed the 50-year mark
111 of the 207 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 21.3% 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 22% of the county's Poor-condition bridge traffic
US0080 over BOEUF RIVER, built 1958, carries 2,747 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 23-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 12,496 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Richland County's bridges were built
207 bridges with a recorded construction year, grouped by decade
- 1930s 15
1930–1939
15 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s
1950–1959
21 bridges
- 1960s
1960–1969
49 bridges
- 1970s
1970–1979
30 bridges
- 1980s 18
1980–1989
18 bridges
- 1990s 17
1990–1999
17 bridges
- 2000s
2000–2009
31 bridges
- 2010s
2010–2019
21 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1960s, when 49 of the county's bridges still in the inventory were built, which is 23.7% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1979) matches the Louisiana average (1982).
How Richland County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest Richland County in number of bridges, with their condition splits. Its 11.1% Poor share is the 4th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1982 is in line with the group.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Ascension County | 216 | 41.2% | 45.8% | 13% | 1981 |
| Terrebonne County | 215 | 42.3% | 47% | 10.7% | 1983 |
| Grant County | 209 | 41.6% | 42.6% | 15.8% | 1982 |
| Richland County (this page) | 207 | 21.3% | 67.6% | 11.1% | 1979 |
| De Soto County | 201 | 27.9% | 67.2% | 5% | 1980 |
| LaSalle County | 195 | 60% | 34.4% | 5.6% | 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 Richland 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 Richland County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (207 bridges here).
- Marin County, CA · 207 bridges
- Las Animas County, CO · 207 bridges
- Shelby County, IA · 207 bridges
- Washington County, IA · 207 bridges
Similar average build year
Nearest mean year-built outside LA (1979 here).
- Pima County, AZ · avg 1979 · 1,150 bridges
- Jefferson County, KY · avg 1979 · 662 bridges
- Spartanburg County, SC · avg 1979 · 638 bridges
- McPherson County, KS · avg 1979 · 586 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (140)
LA0132
FairOver: MUDDY BAYOU
.3 MI EAST OF LA 135, Richland, LA
Built 1972 Load: 7.5 t ADT: 1,913
LA0132
FairOver: HORSE BAYOU
1.4 MI EAST OF LA 135, Richland, LA
Built 1972 Load: 12.3 t ADT: 1,913
OVERLAND STAGE RD
FairOver: CREEK
0.64 MI. W. OF LA 133, Richland, LA
Built 1935 Load: 14.3 t ADT: 163
LA0134
FairOver: CREEK
1.5 MI EAST OF LA 583, Richland, LA
Built 1957 Load: 14.5 t ADT: 473
US0080
FairOver: DRAIN
2.0 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 14.9 t ADT: 1,451
LA3048
FairOver: BEE BAYOU
2.0 MI NORTH OF LA 584, Richland, LA
Built 1960 Load: 15.4 t ADT: 1,594
LA3048
FairOver: BURNS BAYOU
2.4 MI NORTH OF LA 584, Richland, LA
Built 1960 Load: 15.9 t ADT: 1,594
LA0576
FairOver: MUDDY BAYOU
6.0 MI SOUTH OF LA 132, Richland, LA
Built 1968 Load: 16.3 t ADT: 162
BURKE RD
FairOver: BIG CREEK
0.6 MI N of LA 132, Richland, LA
Built 1991 Load: 18.5 t ADT: 340
LA0576
FairOver: CREEK
5.1 MI SOUTH OF LA 132, Richland, LA
Built 1968 Load: 19.1 t ADT: 162
LA0576
FairOver: CREEK
.6 MI EAST OF LA 622, Richland, LA
Built 1968 Load: 19.3 t ADT: 162
SUMMERS RD
FairOver: COW BAYOU
0.63 MI FROM 208 TO 214, Richland, LA
Built 1989 Load: 19.4 t ADT: 40
LA0015
FairOver: BR. OVER DRAINAGE CANAL
2.1 MI WEST OF LA 133, Richland, LA
Built 1951 Load: 20.0 t ADT: 2,382
LA0015
FairOver: FLAT SLOUGH BRIDGE
12.0 MI NW FRANKLIN PAR, Richland, LA
Built 1954 Load: 20.0 t ADT: 2,382
LA0015
FairOver: SLOUGH
4.2 MI WEST OF LA 133, Richland, LA
Built 1954 Load: 20.0 t ADT: 2,382
LA0015
FairOver: B LAFOURCHE RELIEF
5.2 MI WEST OF LA 133, Richland, LA
Built 1954 Load: 20.0 t ADT: 2,382
US0080
FairOver: DRAIN
3.2 MI WEST OF SOUTH INT, Richland, LA
Built 1955 Load: 20.1 t ADT: 2,747
US0080
FairOver: COW BAYOU
1.9 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 20.9 t ADT: 1,451
US0080
FairOver: CREEK
2.6 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 20.9 t ADT: 1,451
LA0134
FairOver: COLEWA CREEK
1.3 MI EAST OF LA 183, Richland, LA
Built 1953 Load: 21.1 t ADT: 733
FORTENBERRY RD
FairOver: CYPRESS CREEK
LOG MI 2.61 FR 443 TO ODE, Richland, LA
Built 1987 Load: 21.1 t ADT: 22
LITTLE RD
FairOver: BIG CREEK
LOGMI 4.08 FR 1DE TO, Richland, LA
Built 1976 Load: 21.4 t ADT: 100
LA0134
FairOver: BEOUF RIVER
2.1 MI WEST OF LA 583, Richland, LA
Built 1967 Load: 22.7 t ADT: 540
LA3048
FairOver: DRAIN
1.6 MI NORTH OF LA 584, Richland, LA
Built 1960 Load: 23.6 t ADT: 1,594
LA3048
FairOver: LA 3048 OVER I-20
LA 3048 OVER I-20, Richland, LA
Built 1969 Load: 23.6 t ADT: 1,594
US0080
FairOver: DRAIN
2.0 MI EAST OF LA 609, Richland, LA
Built 1930 Load: 23.7 t ADT: 1,451
LEGGINS RD
FairOver: TURKEY CREEK
0.5 MI NW of US 80, Richland, LA
Built 2007 Load: 24.0 t ADT: 25
LA0015
FairOver: MUDDY BAYOU
4.03 MI WEST OF LA 137, Richland, LA
Built 1938 Load: 24.3 t ADT: 2,198
LA0584
FairOver: COW BAYOU
4.0 MI EAST OF US 425, Richland, LA
Built 1954 Load: 24.5 t ADT: 990
DELCHO RD
FairOver: DRY FORK CREEK
0.5 MI W OF US 425, Richland, LA
Built 2016 Load: 24.6 t ADT: 103
LA0015
FairOver: DRAIN
1.16 MI WEST OF LA 137, Richland, LA
Built 1938 Load: 24.9 t ADT: 2,198
STATEPRK
FairOver: CANAL
0.3 MI EAST OF LA 17, Richland, LA
Built 2004 Load: 25.4 t ADT: 300
VENABLE RD
FairOver: I-20
1.74 MI EAST OF LA 133, Richland, LA
Built 1968 Load: 25.4 t ADT: 3,010
US0080
FairOver: BEE BAYOU
.2 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 27.2 t ADT: 1,451
LA0584
FairOver: BEE BAYOU
1.8 MI EAST OF US 425, Richland, LA
Built 1954 Load: 27.2 t ADT: 990
LA0183
FairOver: HURRICANE BAYOU
1.2 MI NORTH OF US 80, Richland, LA
Built 1950 Load: 28.1 t ADT: 1,467
US0080
FairOver: DRAIN
1.1 MI EAST OF LA 583, Richland, LA
Built 1953 Load: 28.2 t ADT: 1,451
LA0017
FairOver: RESERVOIR
.28 MI NORTH OF LA 854, Richland, LA
Built 2000 Load: 28.2 t ADT: 3,890
I0020
FairOver: I-20 OVER LA 17
I-20 OVER LA 17, Richland, LA
Built 1970 Load: 28.2 t ADT: 38,890
I0020
FairOver: I-20 OVER LA 17
I-20 OVER LA 17, Richland, LA
Built 1970 Load: 28.2 t ADT: 16,997
FRAGALA ST
FairOver: LITTLE CREEK
0.4 MI W of US 425, Richland, LA
Built 1991 Load: 28.5 t ADT: 570
MADELINE ST
FairOver: LITTLE CREEK
LOGMI 0.24 FR 4 TO 5, Richland, LA
Built 1984 Load: 28.8 t ADT: 250
US0080
FairOver: CYPRESS BAYOU
2.9 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 29.0 t ADT: 1,451
US0080
FairOver: HURRICANE
3.3 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 29.0 t ADT: 1,451
US0080
FairOver: CREEK
1.2 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 29.0 t ADT: 1,451
US0080
FairOver: LITTLE CREEK
2.7 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 29.0 t ADT: 1,451
LA0583
FairOver: LA 583 OVER I-20
LA 583 OVER I-20, Richland, LA
Built 1969 Load: 29.9 t ADT: 1,108
SECTION RD
FairOver: I-20
3.2 MI EAST OF LA 609, Richland, LA
Built 1970 Load: 29.9 t ADT: 2,390
MONROE RD
FairOver: LITTLE COLEWA BAYOU
3.2 MI N of LA 854, Richland, LA
Built 2003 Load: 30.1 t ADT: 100
MENGEL RD
FairOver: I-20
1.7 MI EAST OF LA 583, Richland, LA
Built 1969 Load: 30.8 t ADT: 2,730
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.