County profile · official public datasets

LaSalle County, LA

195 public highway bridges tracked in the FHWA National Bridge Inventory: 60% rated Good, 34.4% Fair, 5.6% Poor.

195
Public bridges
60%
Good condition
5.6%
Poor condition

The verdict

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

LaSalle County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 13%
lowest Poor share in state
5.6%
Poor-condition share
195
public highway bridges
1983
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.

LaSalle County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, LaSalle County ranks #8 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.6%). LaSalle County, Louisiana contains 195 public highway bridges. Roughly 60% are rated “Good,” 34.4% “Fair,” and 5.6% “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

195

Public highway bridges in LaSalle County

Good condition

60%

117 of 195 rated 7-9

Fair condition

34.4%

67 of 195 rated 5-6

Poor condition

5.6%

11 of 195 rated 4 or below

In-state Poor-share rank

#8 of 64

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

Condition distribution

Share of 195 NBI-tracked bridges by lowest applicable component rating.

Good
60% (117)
Fair
34.4% (67)
Poor
5.6% (11)

LaSalle County's Poor-condition bridges carry 16,925 vehicle crossings a day

That is 6.8% of the county's reported daily bridge traffic on 5.8% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,539 crossings a day against 1,019 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 191 of 195 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

33.3% of LaSalle County's bridges have passed the 50-year mark

65 of the 195 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 60% 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 27.8% of the county's Poor-condition bridge traffic

US0165 over LITTLE RIVER, built 1956, carries 4,700 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 11-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 16,925 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When LaSalle County's bridges were built

195 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 39 of the county's bridges still in the inventory were built, which is 20% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1983) matches the Louisiana average (1982).

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

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

The 5 Louisiana counties nearest LaSalle County in number of bridges, with their condition splits. Its 5.6% Poor share is the 2nd-lowest of these 6. Its average build year of 1983 against a peer-group mean of 1979 is in line with the group.

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

Bridge inventory size and condition shares for LaSalle County and the 5 Louisiana counties closest to it in inventory size
County Bridges Poor
Richland County 207 11.1%
De Soto County 201 5%
Sabine County 195 10.8%
LaSalle County (this page) 195 5.6%
Webster County 194 25.3%
Bienville County 190 28.4%

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

Similar inventory size

Nearest county inventories outside LA (195 bridges here).

Similar average build year

Nearest mean year-built outside LA (1983 here).

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

All bridges (195)

LA0460

Fair

Over: GRAY CREEK

4.4 MI EAST OF LA 127, LaSalle, LA

Built 1974 Load: 39.0 t ADT: 776

LA0459

Fair

Over: HAIRS CREEK

1.60 M N of US 84, LaSalle, LA

Built 1983 Load: 39.0 t ADT: 1,160

LA0459

Fair

Over: BRUSHLEY CREEK

10.1 MI NORTH OS US 84, LaSalle, LA

Built 1981 Load: 39.0 t ADT: 1,160

LA0770

Fair

Over: LITTLE CHICKSAW

1.4 MI WEST OF LA 127, LaSalle, LA

Built 1984 Load: 39.0 t ADT: 129

LA0773

Fair

Over: CREEK

.5 MI NORTH OF LA 774, LaSalle, LA

Built 1981 Load: 39.0 t ADT: 1,537

LA3071

Fair

Over: ROCKY CREEK

2.9 MI EAST OF LA 503, LaSalle, LA

Built 1979 Load: 39.0 t ADT: 429

LA3259

Fair

Over: CREEK

.7 MI SOUTH OF LA 125, LaSalle, LA

Built 1977 Load: 39.0 t ADT: 1,236

US0165

Fair

Over: COCKERHAM CREEK

2.4 MI SOUTH OF US 84, LaSalle, LA

Built 1956 Load: 41.7 t ADT: 3,518

US0084

Fair

Over: DOYLE CREEK

.3 MI EAST OF LA 8, LaSalle, LA

Built 1967 Load: 43.5 t ADT: 2,479

West Bradford St

Fair

Over: WEST HEMPHILL CREEK

0.2 MILES WEST OF LA 8, LaSalle, LA

Built 1985 Load: 46.7 t ADT: 370

US0165

Fair

Over: LITTLE RIVER RELIEF

2.6 MI SOUTH OF US 84, LaSalle, LA

Built 1956 Load: 49.9 t ADT: 3,518

LA0028

Fair

Over: LITTLE SALINE B

14.5 MI SOUTH OF LA 84, LaSalle, LA

Built 1960 Load: 61.7 t ADT: 5,026

US0165

Fair

Over: LITTLE RIVER RELIEF

0.32 MILES FROM GRANT PAR, LaSalle, LA

Built 2008 Load: 74.5 t ADT: 4,538

Randall Lane

Fair

Over: BUSHY CREEK

0.5 MILES EAST OF LA.3071, LaSalle, LA

Built 2015 Load: 74.5 t ADT: 100

Tingle Rd

Fair

Over: MUDDY PRONG

0.8 MILES SOUTH OF LA 8, LaSalle, LA

Built 1984 Load: 74.5 t ADT: 70

Melody Acres

Fair

Over: KITCHEN CREEK

LOG MI 2.45 FR 541 TO 543, LaSalle, LA

Built 2001 Load: 74.5 t ADT: 20

Pleasant Ridge Rd

Fair

Over: FRANKLIN BRANCH

LOG MI. 1.4 FR 636 TO 638, LaSalle, LA

Built 2000 Load: 74.5 t ADT: 50

Janet Rd

Good

Over: DEVILS CREEK

LOGMI 0.06 FR ODE TO, LaSalle, LA

Built 1975 Load: 12.5 t

US0084

Good

Over: WEST PRONG HEMP CREEK

.2 MI WEST OF LA 127, LaSalle, LA

Built 1956 Load: 20.0 t ADT: 6,905

LA0127

Good

Over: LITTLE CHICKASAW

6.2 MI NORTH OF LA 503, LaSalle, LA

Built 1950 Load: 20.9 t ADT: 3,888

LA0459

Good

Over: GREENS CREEK

3.9 MI NORTH OS US 84, LaSalle, LA

Built 1958 Load: 20.9 t ADT: 1,160

MAGNOLIA LOOP

Good

Over: ROUTH CREEK

0.9 MI SE OF LA 776, LaSalle, LA

Built 2005 Load: 21.4 t ADT: 73

LA0008

Good

Over: LITTLE RIVER

8.0 MI SOUTH OF LA 774, LaSalle, LA

Built 1981 Load: 21.7 t ADT: 1,590

LA0460

Good

Over: CREEK

6.7 MI EAST OF LA 127, LaSalle, LA

Built 1978 Load: 23.3 t ADT: 776

Mt. Sinai

Good

Over: TROUT CREEK

LOGMI 4.60 FR 518 TO 450, LaSalle, LA

Built 1998 Load: 24.3 t ADT: 180

Zimmer Creek Rd

Good

Over: Thunderbird Creek

0.6 m North of US 84E, LaSalle, LA

Built 1997 Load: 24.3 t ADT: 110

Zimmer Creek Rd

Good

Over: Zimmer Creek

1.1miles southwest LA 127, LaSalle, LA

Built 1999 Load: 24.6 t ADT: 50

Garan Dr

Good

Over: CREEK

450 south of US 84E, LaSalle, LA

Built 1969 Load: 24.9 t ADT: 105

Sunshine Rd

Good

Over: BAYOU FUNNY LOUIS

0.07M FROM 468 TO 649, LaSalle, LA

Built 1992 Load: 24.9 t ADT: 60

Windmill Rd

Good

Over: RHINEHART CREEK

.1 mile fr blade loop jct, LaSalle, LA

Built 2002 Load: 25.6 t ADT: 60

Magnolia Loop

Good

Over: ROUTH CREEK

LOGMI 0.66 FR 80 TO ODE, LaSalle, LA

Built 2000 Load: 25.9 t ADT: 50

Moffett Rd

Good

Over: DEVILS CREEK

LOGMI 0.83 FR ODE TO 63, LaSalle, LA

Built 2000 Load: 25.9 t ADT: 100

Wh Sulphur Spr Rd

Good

Over: KITTERLINE CREEK

LOGMI 2.87 FR 94 TO 101, LaSalle, LA

Built 1999 Load: 25.9 t ADT: 200

Wh Sulphur Spr Rd

Good

Over: HURRICANE CREEK

LOGMI 4.05 FR 94 TO 101, LaSalle, LA

Built 1998 Load: 25.9 t ADT: 220

Snyder Rd

Good

Over: TROUT CREEK

LOGMI 4.35 FR 507 TO 172, LaSalle, LA

Built 2000 Load: 25.9 t ADT: 100

W Baker St

Good

Over: CREEK

0.3 M W of US 84/LA 8, LaSalle, LA

Built 1997 Load: 25.9 t ADT: 25

Tram Rd

Good

Over: BAYOU FUNNY LOUIS

1.45 LOG MI FR 518 TO 450, LaSalle, LA

Built 1987 Load: 25.9 t ADT: 50

Cowart St

Good

Over: ELI COOPER BRIDGE CREEK

LOG MI 1.15 FR 358 TO ODE, LaSalle, LA

Built 1998 Load: 25.9 t ADT: 40

Taylor Chapel Rd

Good

Over: FUNNY LOUIS BAYOU

1.2 MI W of La 127, LaSalle, LA

Built 1999 Load: 25.9 t ADT: 110

Reeves Cutoff

Good

Over: Bayou Funny Louis

05. MI N of La 503, LaSalle, LA

Built 1997 Load: 25.9 t ADT: 50

Rainey Arena Rd

Good

Over: BAYOU FUNNY LOUIS

LOGMI 0.38 FR 648 TO 467, LaSalle, LA

Built 1999 Load: 25.9 t ADT: 60

Mixon Rd

Good

Over: CHICKASAW CREEK

LOGMI 1.67 FR 612 TO 618, LaSalle, LA

Built 1999 Load: 25.9 t ADT: 50

Sandy Dr

Good

Over: SANDY CREEK

NORTH OF LA 125, LaSalle, LA

Built 1992 Load: 25.9 t ADT: 120

Sandy Dr

Good

Over: SANDY CREEK

LOGMI 1.91 FR 594 TO 598, LaSalle, LA

Built 2000 Load: 25.9 t ADT: 210

Elm St

Good

Over: WEST PRONG HEMPHILL CREE

160 East of US 84, LaSalle, LA

Built 1998 Load: 26.6 t ADT: 28

Indian Bluff Rd

Good

Over: CREEK

LOG MI. 1.15 FR 70 TO ODE, LaSalle, LA

Built 1998 Load: 26.9 t ADT: 70

COOPER LOOP ROAD

Good

Over: COOPER LOOP CREEK

0.02 MI S OF LA 8, LaSalle, LA

Built 2011 Load: 27.2 t ADT: 63

LA0008

Good

Over: HEMPS CREEK WEST

.01 MI NORTH OF LA 127, LaSalle, LA

Built 2007 Load: 27.2 t ADT: 1,628

US0165

Good

Over: CREEK

0.91 MILES NORTH OF THE L, LaSalle, LA

Built 2009 Load: 28.8 t ADT: 4,538

Sparrow Rd

Good

Over: TROUT CREEK

0.5 Miles North of LA 8, LaSalle, LA

Built 2013 Load: 29.2 t ADT: 300
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.