Total bridges
382
Public highway bridges in Orleans County
County profile · official public datasets
Orleans County, LA
382 public highway bridges tracked in the FHWA National Bridge Inventory: 43.7% rated Good, 46.3% Fair, 9.9% Poor.
- 382
- Public bridges
- 43.7%
- Good condition
- 9.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Orleans County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 48%
- lowest Poor share in state
- 9.9%
- Poor-condition share
- 382
- public highway bridges
- 1976
- 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.
Orleans County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Orleans County ranks #31 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.9%). Orleans County, Louisiana contains 382 public highway bridges. Roughly 43.7% are rated “Good,” 46.3% “Fair,” and 9.9% “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
43.7%
167 of 382 rated 7-9
Fair condition
46.3%
177 of 382 rated 5-6
Poor condition
9.9%
38 of 382 rated 4 or below
In-state Poor-share rank
#31 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 382 NBI-tracked bridges by lowest applicable component rating.
Good 43.7% (167)
Fair 46.3% (177)
Poor 9.9% (38)
Orleans County's Poor-condition bridges carry 572,775 vehicle crossings a day
That is 8.1% of the county's reported daily bridge traffic on 7.1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 30,146 crossings a day against 15,720 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 266 of 382 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
52.6% of Orleans County's bridges have passed the 50-year mark
201 of the 382 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 43.7% 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 26.9% of the county's Poor-condition bridge traffic
I0010 over SERVICE RD & UPT R/R, built 1960, carries 154,311 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 38-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 572,775 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Orleans County's bridges were built
382 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s 13
1930–1939
13 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 27
1950–1959
27 bridges
- 1960s
1960–1969
121 bridges
- 1970s
1970–1979
74 bridges
- 1980s 37
1980–1989
37 bridges
- 1990s
1990–1999
62 bridges
- 2000s 21
2000–2009
21 bridges
- 2010s 19
2010–2019
19 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1960s, when 121 of the county's bridges still in the inventory were built, which is 31.7% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1976, 6 years older than the Louisiana average of 1982.
How Orleans County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest Orleans County in number of bridges, with their condition splits. Its 9.9% Poor share is the 5th-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1983 is 7 years older.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Orleans County (this page) | 382 | 43.7% | 46.3% | 9.9% | 1976 |
| Jefferson County | 379 | 58.6% | 36.9% | 4.5% | 1984 |
| St. Tammany County | 360 | 33.3% | 60.6% | 6.1% | 1976 |
| Vernon County | 341 | 57.8% | 34.6% | 7.6% | 1989 |
| Ouachita County | 337 | 27.9% | 59.3% | 12.8% | 1981 |
| Lafayette County | 322 | 44.7% | 47.5% | 7.8% | 1986 |
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 Orleans 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 Orleans County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (382 bridges here).
- Jasper County, IA · 382 bridges
- Stephens County, OK · 382 bridges
- Trumbull County, OH · 383 bridges
- Webb County, TX · 383 bridges
Similar average build year
Nearest mean year-built outside LA (1976 here).
- Marion County, IN · avg 1976 · 958 bridges
- Mohave County, AZ · avg 1976 · 641 bridges
- Comanche County, OK · avg 1976 · 593 bridges
- Prince George's County, MD · avg 1976 · 576 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (382)
Earhart to S Broad
FairOver: STREETS
2.0 MI S OF TULANE AVENUE, Orleans, LA
Built 1951 Load: 27.5 t ADT: 5,441
A. TOUSSAINT BLVD
FairOver: BAYOU ST. JOHN
0.6 MI S OF LAKESHOR, Orleans, LA
Built 1963 Load: 27.9 t
Wall BLVD
FairOver: MAGELLEN CANAL
1.0 MILE NORTH OF LA 428, Orleans, LA
Built 1979 Load: 28.8 t
Wall BLVD
FairOver: MAGELLEN CANAL
1.0 MILE NORTH OF LA 428, Orleans, LA
Built 1979 Load: 28.8 t
US0090
FairOver: SP. RR. & CITY STRS.
.6 MI SOUTH OF MISS. RIVE, Orleans, LA
Built 1988 Load: 28.8 t ADT: 154,311
Earhart to S Broad
FairOver: CITY STREET
2.0 MI S OF TULANE AVENUE, Orleans, LA
Built 1951 Load: 28.8 t
US0090
FairOver: CITY STS I10 RAMPS US9
.91 MI SOUTH OF I-10, Orleans, LA
Built 1994 Load: 29.0 t ADT: 3,803
Anseman Ave
FairOver: CITY PARK LAGOON
0.06 M N OF CITY PK AVE, Orleans, LA
Built 1938 Load: 29.2 t
I0010
FairOver: CARROLTON AVE
1.98 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 29.9 t ADT: 29,280
US0090
FairOver: OVER CITY STREETS
.62 MI EAST OF US 90, Orleans, LA
Built 1960 Load: 29.9 t ADT: 49,920
ALMONASTER AVE RR
FairOver: FLORIDA AVE.
0.05 MI N OF N DORGENOIS, Orleans, LA
Built 1960 Load: 30.5 t
US0011
FairOver: I-10
5.35 MI NORTH OF US 90, Orleans, LA
Built 1967 Load: 30.8 t ADT: 3,912
US0090
FairOver: CITY STREETS
.78 MI SOUTH OF I-10, Orleans, LA
Built 1994 Load: 30.8 t ADT: 7,620
I0010
FairOver: AIRLINE HWY US 61
1.7 MI EAST OF I-610, Orleans, LA
Built 1977 Load: 30.8 t ADT: 132,500
PALMETTO ST
FairOver: AIRLINE HWY. KCS RR
.50 MI.W.OF CARROLTON AVE, Orleans, LA
Built 1960 Load: 30.8 t
PALMETTO ST
FairOver: AIRLINE HWY. KCS RR
.50 MI.W.OF CARROLTON AVE, Orleans, LA
Built 1960 Load: 30.8 t
LA0406
FairOver: DRAIN CANAL
.59 MI EAST OF LA 407, Orleans, LA
Built 1954 Load: 31.1 t ADT: 12,412
I0010
FairOver: DRAIN CANAL
6.9 MI EAST OF I-510, Orleans, LA
Built 1967 Load: 31.1 t ADT: 1,600
HARRISON AVE
FairOver: CITY PARK LAGOON
0.6MI.W.OF WISNER BL, Orleans, LA
Built 1939 Load: 31.1 t
I0010
FairOver: S. CARROLTON AVE.
1.79 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 31.8 t ADT: 7,620
I0010
FairOver: S. CARROLTON AVE.
1.8 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 31.8 t ADT: 7,620
I0010
FairOver: CITY STREETS
1.0 MI EAST OF US 90, Orleans, LA
Built 1969 Load: 31.8 t ADT: 7,620
Lake Forest BLVD
FairOver: BENSON CANAL
0.3 MI. E. OF CROWDE, Orleans, LA
Built 1975 Load: 31.8 t
MIRABEAU AVE
FairOver: BAYOU ST. JOHN
0.1 MI E OF WISNER BLVD., Orleans, LA
Built 2004 Load: 32.1 t
US0090
FairOver: DRAIN CANAL
9.9 MI NORTH OF I-10, Orleans, LA
Built 1965 Load: 32.4 t ADT: 1,215
Pace BLVD
FairOver: MAGELLAN CANAL
0.2MI.N.OF WALL BLVD, Orleans, LA
Built 1960 Load: 32.4 t
LA0039
FairOver: N O P B RR (ROBERTSON ST
.6 MI EAST OF LA 3021, Orleans, LA
Built 1962 Load: 32.7 t ADT: 47,739
US0090-B
FairOver: CITY STS.US.90BN/B RMPS
.98 MI SOUTH OF I-10, Orleans, LA
Built 1996 Load: 32.7 t ADT: 14,010
US0090-B
FairOver: SP. RR. & CITY STS.
1.1 MI SOUTH OF MISS. RIV, Orleans, LA
Built 1986 Load: 32.7 t ADT: 154,311
I0010
FairOver: METAIRIE ROAD
1.2 MI S OF US 610, Orleans, LA
Built 1962 Load: 32.7 t ADT: 169,357
I0010
FairOver: METAIRIE ROAD
4.5 MI NW MISSISSIPPI R., Orleans, LA
Built 1962 Load: 32.7 t ADT: 1,600
I0010
FairOver: INNER HARBOR /CITY STS
2.5 MI EAST OF LA 39, Orleans, LA
Built 1966 Load: 32.7 t ADT: 181,400
MORRISON RD
FairOver: I-10
1.2 MI EAST OF US 90, Orleans, LA
Built 1966 Load: 32.7 t ADT: 5,173
LA0407
FairOver: (NEW)ALGIERS CUTOFF CANA
1.6 MI SE OF LA 428, Orleans, LA
Built 1985 Load: 32.7 t ADT: 11,240
S. Broad St Exit
FairOver: STREETS
1.5 MI S OF TULANE AVENUE, Orleans, LA
Built 1951 Load: 32.7 t ADT: 5,441
Alvar St
FairOver: ALMONASTER L&N RAILROAD
0.1 MI. S. OF DOWNMAN RD, Orleans, LA
Built 1978 Load: 32.7 t
Alvar St
FairOver: ALMONASTER L&N RAILROAD
0.1 MI. S. OF DOWNMAN RD, Orleans, LA
Built 1978 Load: 32.7 t
Golf Dr.
FairOver: CITY PARK LAGOON
0.1 MI.N.OF STADIUM, Orleans, LA
Built 1939 Load: 33.4 t
I0010
FairOver: CITY STREETS
0.5 MI NE OF US 90B, Orleans, LA
Built 1969 Load: 33.6 t ADT: 47,100
US0090-B
FairOver: R/R CITY STS
.4 MI SOUTH OF I-10, Orleans, LA
Built 1960 Load: 33.6 t ADT: 67,143
US0090-B
FairOver: CITY STREETS
1.22 MI SOUTH OF I-10, Orleans, LA
Built 1995 Load: 33.6 t ADT: 154,311
US0090-B
FairOver: LA.428 AND CITY STREETS
0.6 MI NW OF LA 428, Orleans, LA
Built 1995 Load: 33.6 t ADT: 8,940
I0610
FairOver: ON RAMP I-610E.
.5 MI EAST OF I-10, Orleans, LA
Built 1963 Load: 33.6 t ADT: 7,620
I0010
FairOver: I-610
.5 MI EAST OF I-10, Orleans, LA
Built 1963 Load: 33.6 t ADT: 3,803
I0510
FairOver: CITY STREETS
0.95M NORTH OF US 90, Orleans, LA
Built 1992 Load: 33.6 t ADT: 29,280
I0010
FairOver: ON RAMP TO I10 W.
1.74 MI EAST OF I-610, Orleans, LA
Built 1963 Load: 33.6 t ADT: 7,620
I0010
FairOver: OFF RAMP I-10/CAROLTON
1.93 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 33.6 t ADT: 7,620
I0010
FairOver: ON RAMP (I-10E FR AIR)
1.94 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 33.6 t ADT: 3,803
I0010
FairOver: ON RAMP I-10/CARRLOTON
1.96 MI EAST OF I-610, Orleans, LA
Built 1961 Load: 33.6 t ADT: 7,620
I0010
FairOver: CITY STREETS
3.14 MI EAST OF I-610, Orleans, LA
Built 1960 Load: 33.6 t ADT: 85,050
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.