Terrebonne County Bridge Report Card

Terrebonne County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C72 / 100

Local infrastructure snapshot

Terrebonne County, Louisiana

Terrebonne County has 214 bridges in the National Bridge Inventory, with 22 rated poor and 2 rated scour-critical. Its poor-condition share of 10.3% is at or below the 11.2% statewide average. Poor-condition bridges carry about 77,665 daily vehicle crossings.

214Total Bridges

22Poor (10.3%)

101Fair (47.2%)

2Scour-Critical

Quote-Ready Local Facts

10.3%of county bridges are in poor condition, compared with 11.2% statewide and 6.7% nationally.

77,665daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 0.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Terrebonne County a Bridge Condition Exposure Score of 72/100 (C). The county has 214 bridges in the National Bridge Inventory, including 22 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 77,665 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	10.3%	20.6
Poor-condition traffic exposure	25	7.8% of measured traffic	5.8
Scour-critical bridge share	20	0.9%	1.9
Average age vs national baseline	10	42 years vs 48 nationally	0.0
Traffic-data completeness	5	998,751 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	10.3%
State Poor-Condition Share	11.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.9%
Average Bridge Age	42 years
Poor-Condition Traffic Exposure	77,665 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeN. Hollywood RD over Drain Canal — 13,934 vehicles/day Oldest Listed BridgeLa0182 over Drain Canal — built in 1931 All County BridgesBrowse every bridge record in Terrebonne County.

Top Bridges to Watch in Terrebonne County

Bridge	Reason	Condition	Daily Traffic	Year Built
N. Hollywood RD over Drain Canal	Poor condition + traffic exposure	Poor	13,934	1965
La0182 over Bayou Terrebonne	Poor condition + traffic exposure	Poor	9,001	1968
La0024 over Co. Canal (bourg)	Poor condition + traffic exposure	Poor	8,645	1951
La0315 over Provost Bayou	Poor condition + traffic exposure	Poor	6,715	1953
La0058 over Drainage Canal	Poor condition + traffic exposure	Poor	5,194	1966
Moffet RD over Chauvin Bayou	Poor condition + traffic exposure	Poor	5,123	1979
E Woodlawn Ranch R over Grand Caillou Bayou	Poor condition + traffic exposure	Poor	4,278	1980
La0056 over Boudreaux Canal	Poor condition + traffic exposure	Poor	3,872	1959
La0182 over Bayou Terrebonne	Poor condition + traffic exposure	Poor	3,687	1954
9th ST over ST Louis Canal	Poor condition + traffic exposure	Poor	3,492	1965

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.