St. Bernard County Bridge Report Card

St. Bernard County scores 56 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F56 / 100

Local infrastructure snapshot

St. Bernard County, Louisiana

St. Bernard County has 47 bridges in the National Bridge Inventory, with 3 rated poor and 7 rated scour-critical. Its poor-condition share of 6.4% is at or below the 11.2% statewide average. Poor-condition bridges carry about 53,192 daily vehicle crossings.

47Total Bridges

3Poor (6.4%)

18Fair (38.3%)

7Scour-Critical

Quote-Ready Local Facts

6.4%of county bridges are in poor condition, compared with 11.2% statewide and 6.7% nationally.

53,192daily vehicle crossings are on poor-condition bridges in the county.

7bridges are rated scour-critical, or 14.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives St. Bernard County a Bridge Condition Exposure Score of 56/100 (F). The county has 47 bridges in the National Bridge Inventory, including 3 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 53,192 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	6.4%	12.8
Poor-condition traffic exposure	25	14.6% of measured traffic	11.0
Scour-critical bridge share	20	14.9%	20.0
Average age vs national baseline	10	27 years vs 48 nationally	0.0
Traffic-data completeness	5	363,501 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	6.4%
State Poor-Condition Share	11.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	14.9%
Average Bridge Age	27 years
Poor-Condition Traffic Exposure	53,192 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeLa0039 over Rr Canal — 47,739 vehicles/day Oldest Listed BridgeLa0046 over Bayou La Loutre — built in 1957 All County BridgesBrowse every bridge record in St. Bernard County.

Top Bridges to Watch in St. Bernard County

Bridge	Reason	Condition	Daily Traffic	Year Built
La0039 over Rr Canal	Poor condition + traffic exposure	Poor	47,739	1991
Patricia ST over Chalmette Vista Canal	Poor condition + traffic exposure	Poor	4,562	1960
La0300 over Bayou Laloutre	Poor condition + traffic exposure	Poor	891	1967
Deer Creek DR over 20 Arpent Canal	Scour-critical foundation rating	Fair	880	1985
Jacob DR over 20 Arpent Canal	Scour-critical foundation rating	Fair	863	1997
Marietta DR over 20 Arpent Canal	Scour-critical foundation rating	Good	516	2015
Oak Ridge BLVD over 20 Arpent Canal	Scour-critical foundation rating	Fair	450	1986
Despaux DR over 20 Arpent Canal	Scour-critical foundation rating	Fair	216	1994
Thelma ST over 20 Arpent Canal	Scour-critical foundation rating	Good	195	2015
Florida AVE over Corinne Canal	Scour-critical foundation rating	Fair	90	2011

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.