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.
Condition Distribution
All Bridges (215)
LA0058
PoorOver: DRAINAGE CANAL
.36 MI EAST OF LA 56, Terrebonne, LA
ROUSSELL ST
PoorOver: BAYOU TERREBONNE
0.01 M W OF EAST PARK, Terrebonne, LA
LA0315
PoorOver: FALGOUT CANAL
11.0 MI SOUTH OF LA 661, Terrebonne, LA
LA0315
PoorOver: PROVOST BAYOU
8.6 MI SOUTH OF LA 661, Terrebonne, LA
9th St
PoorOver: ST LOUIS CANAL
0005 LOG MI FROM INT, Terrebonne, LA
N. HOLLYWOOD RD
PoorOver: DRAIN CANAL
0.6 MI. W. OF LA 182, Terrebonne, LA
BRADY BRIDGE RD
PoorOver: DU LARGE BAYOU
0.01 MI W OF LA 315, Terrebonne, LA
MANDALAY BRIDGE
Structurally DeficientOver: BLACK BAYOU
0.005 MI N OF LA 182, Terrebonne, LA
LA0056
Structurally DeficientOver: ROBINSON CANAL
1.7 MI NORTH OF LA 57, Terrebonne, LA
LA0056
Structurally DeficientOver: BOUDREAUX CANAL
7.2 MI SOUTH OF LA 58, Terrebonne, LA
LA0182
Structurally DeficientOver: BAYOU TERREBONNE
0.1 MI EAST OF LA 24 WEST, Terrebonne, LA
LA0024
Structurally DeficientOver: CO. CANAL (BOURG)
1.20 MI W OF LA 24, Terrebonne, LA
FALGOUT CANAL RD
Structurally DeficientOver: GRAND CAILLOU BAYOU
0.04 MI W OF LA 57, Terrebonne, LA
LA3197
Structurally DeficientOver: HOUMA CANAL
.4 MI EAST OF LA 182, Terrebonne, LA
NORTH ST
Structurally DeficientOver: CHACAHOULA CANAL
0.01M W OF DEADWOOD RD, Terrebonne, LA
Read our methodology — how this data is sourced, computed, and verified.
Related
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |