Terrebonne County, LA

215 public highway bridges

Terrebonne County Bridge Snapshot

Terrebonne County, Louisiana contains 215 public highway bridges in the FHWA National Bridge Inventory. Roughly 40.5% are rated “Good,” 42.8% “Fair,” 10.7% “Poor,” and 10.7% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in LA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

215
Total Bridges
40.5%
Good
10.7%
Poor
10.7%
Structurally Deficient

Condition Distribution

Good
40.5% (87)
Fair
42.8% (92)
Poor
10.7% (23)
SD
10.7% (23)

All Bridges (215)

Security Blvd

Fair

Over: LITTLE BLACK BAYOU

0001 LOG MI FROM INT, Terrebonne, LA

Built 1979 Load: 20.7 t ADT: 468

LA0055

Fair

Over: ST LOUIS CANAL

.5 MI SOUTH OF LA 24, Terrebonne, LA

Built 1953 Load: 20.9 t ADT: 4,035

LA0055

Fair

Over: MADISON CANAL

8.8 MI SOUTH OF LA 58, Terrebonne, LA

Built 1970 Load: 21.1 t ADT: 276

ST LOUIS CANAL RD

Fair

Over: ST LOUIS CANAL

0166 LOG MI FROM IN, Terrebonne, LA

Built 1976 Load: 21.4 t ADT: 6,313

ST LOUIS CANAL RD

Fair

Over: ST LOUIS CANAL

2.3 MI N OF LA 3040, Terrebonne, LA

Built 1976 Load: 21.4 t ADT: 3,492

LA0057

Fair

Over: DULAC BAYOU

8 MI NORTH OF LA 56, Terrebonne, LA

Built 1971 Load: 21.7 t ADT: 952

LA0182

Fair

Over: CARO CANAL

.06 MI WEST OF LA 316, Terrebonne, LA

Built 1957 Load: 21.8 t ADT: 3,687

KENNY STREET

Fair

Over: ST LOUIS CANAL

0.2 MI E OF BROADMOOR AVE, Terrebonne, LA

Built 1976 Load: 22.4 t ADT: 1,471

PROSPECT BLVD

Fair

Over: DRAIN CANAL

0.6 MI S OF LA 24, Terrebonne, LA

Built 1995 Load: 22.7 t ADT: 10,390

LA0058

Fair

Over: PETIT CAILLOU

.01 MI EAST OF LA 56, Terrebonne, LA

Built 1964 Load: 23.3 t ADT: 5,194

WATERPROOF BRIDGE

Fair

Over: BLACK BAYOU

LA 182 SOUTHDOWN-MANDALAY, Terrebonne, LA

Built 2009 Load: 24.0 t ADT: 610

Savanne Rd

Fair

Over: BLACK BAYOU

0.01 MI NE OF LA 182, Terrebonne, LA

Built 2001 Load: 24.6 t ADT: 2,114

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1941 Load: 25.4 t ADT: 8,922

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 25.6 t ADT: 259

E WOODLAWN RANCH R

Fair

Over: PETIT GAILLOU BAYOU

1.2 MI E OF LA 57, Terrebonne, LA

Built 2011 Load: 25.6 t ADT: 2,248

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 25.9 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1975 Load: 25.9 t ADT: 2,800

LA0024

Fair

Over: ST LOUIS CANAL

LA0024, Terrebonne, LA

Built 1959 Load: 26.3 t ADT: 14,232

LA0182

Fair

Over: DRAIN CANAL

11.09 MI EAST OF LA 20, Terrebonne, LA

Built 1931 Load: 27.2 t ADT: 3,687

THERIOT VOISIN BR

Fair

Over: DU LARGE BAYOU

0001 LOG MI FROM IN, Terrebonne, LA

Built 2011 Load: 28.2 t ADT: 1,156

CEDAR GROVE RD

Fair

Over: PELTON BAYOU

0.01 MI N OF LA 57, Terrebonne, LA

Built 1960 Load: 28.2 t ADT: 58

LA0024

Fair

Over: BAYOU TERREBONNE

0.4 MI. E OF INTRACOASTAL, Terrebonne, LA

Built 2006 Load: 28.5 t ADT: 30,800

ST LOUIS CANAL RD

Fair

Over: ST LOUIS CANAL

0.75 N OF LA 3040, Terrebonne, LA

Built 1976 Load: 28.5 t ADT: 6,487

Shrimpers Rowe

Fair

Over: CANAL

1.0 M N OF FALGOUT CA RD, Terrebonne, LA

Built 1991 Load: 28.8 t ADT: 517

US0090

Fair

Over: ST. LOUIS CANAL

02554240718181, Terrebonne, LA

Built 1981 Load: 29.5 t ADT: 12,998

US0090

Fair

Over: ST. LOUIS CANAL

02554240718182, Terrebonne, LA

Built 1981 Load: 29.5 t ADT: 11,661

US0090

Fair

Over: SWAMP

.1 MI.FROM LA.20, Terrebonne, LA

Built 1995 Load: 29.8 t ADT: 2,629

LA3087

Fair

Over: INTRACOASTAL WW

.1 MI EAST OF LA 659, Terrebonne, LA

Built 1980 Load: 30.8 t ADT: 13,617

MORGAN ST

Fair

Over: TERREBONNE BAYOU

0.01 MI S OF LA 24, Terrebonne, LA

Built 2003 Load: 30.8 t ADT: 3,837

St Charles St

Fair

Over: BAYOU BLACK

P5529353904461, Terrebonne, LA

Built 2003 Load: 32.4 t ADT: 14,665

US0090

Fair

Over: DEADWOOD RD, TIGER BAYOU

.04 MI EAST OF LA 3052, Terrebonne, LA

Built 1994 Load: 32.7 t ADT: 4,014

COMBON BRIDGE RD

Fair

Over: GRAND CAILLOU BAYOU

0.08 MI WEST OF LA 57, Terrebonne, LA

Built 1990 Load: 33.4 t ADT: 1,566

US0090

Fair

Over: DRAINAGE CANAL NO 1

1.00 MI E OF LA 311, Terrebonne, LA

Built 1987 Load: 34.0 t ADT: 8,789

US0090

Fair

Over: DRAINAGE CANAL NO 1

1.0 MI E OF LA 311, Terrebonne, LA

Built 1987 Load: 34.0 t ADT: 11,661

LA0020

Fair

Over: DONNER CANAL

2.2 MI EAST OF LA 182, Terrebonne, LA

Built 1984 Load: 34.7 t ADT: 2,471

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 35.4 t ADT: 259

LA0661

Fair

Over: BAYOU TERREBONNE

0.05 MI NORTH OF LA 24, Terrebonne, LA

Built 1999 Load: 37.2 t ADT: 5,780

BAYOUSIDE DR

Fair

Over: BAYOU PETIT CAILLOU

.03 MILES NORTH OF LA 56, Terrebonne, LA

Built 2010 Load: 37.6 t ADT: 2,912

LA0024

Fair

Over: BAYOU TERREBONNE

LA 24, Terrebonne, LA

Built 1975 Load: 39.0 t ADT: 322

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

0.02 MI. E of LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

LA0024

Fair

Over: BAYOU TERREBONNE

02550650405259, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 258

LA0024

Fair

Over: BAYOU TERREBONNE

LA0024, Terrebonne, LA

Built 1974 Load: 39.0 t ADT: 259

SHRIMPERS ROW RD

Fair

Over: KINGS BAYOU/COULEE CANAL

1.1 MI N OF LA 57, Terrebonne, LA

Built 2017 Load: 42.1 t ADT: 517

LA0316

Fair

Over: ST.LOUIS CANAL

0.50 NORTH OF LA.24, Terrebonne, LA

Built 1996 Load: 42.6 t ADT: 7,165

LA0056

Fair

Over: ST LOUIS CANAL

5.96 MI SOUTH OF LA 58, Terrebonne, LA

Built 1969 Load: 43.5 t ADT: 7,379

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial