Iberville County Bridge Report Card

Iberville County scores 66 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D66 / 100

Local infrastructure snapshot

Iberville County, Louisiana

Iberville County has 80 bridges in the National Bridge Inventory, with 10 rated poor and 2 rated scour-critical. Its poor-condition share of 12.5% is above the 11.2% statewide average. Poor-condition bridges carry about 29,858 daily vehicle crossings.

80Total Bridges

10Poor (12.5%)

43Fair (53.8%)

2Scour-Critical

Quote-Ready Local Facts

12.5%of county bridges are in poor condition, compared with 11.2% statewide and 6.7% nationally.

29,858daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 2.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Iberville County a Bridge Condition Exposure Score of 66/100 (D). The county has 80 bridges in the National Bridge Inventory, including 10 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 29,858 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	12.5%	25.0
Poor-condition traffic exposure	25	4.3% of measured traffic	3.2
Scour-critical bridge share	20	2.5%	5.0
Average age vs national baseline	10	50 years vs 48 nationally	0.7
Traffic-data completeness	5	689,903 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	12.5%
State Poor-Condition Share	11.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.5%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	29,858 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeLa0001 over Bayou Plaquemine — 10,843 vehicles/day Oldest Listed BridgeLa0001 over Bayou Plaquemine — built in 1950 All County BridgesBrowse every bridge record in Iberville County.

Top Bridges to Watch in Iberville County

Bridge	Reason	Condition	Daily Traffic	Year Built
La0001 over Bayou Plaquemine	Poor condition + traffic exposure	Poor	10,843	1950
La0076 over Stream No Name	Poor condition + traffic exposure	Poor	7,562	1952
La0077 over Port Allen Lock	Poor condition + traffic exposure	Poor	4,376	1961
La0075 over Bayou Breaux	Poor condition + traffic exposure	Poor	2,943	1969
La3066 over Centennial Canal	Poor condition + traffic exposure	Poor	2,052	1968
La0997 over B Pigeon/lower Grand R.	Poor condition + traffic exposure	Poor	845	1957
La0404 over Bayou Tigris	Poor condition + traffic exposure	Poor	551	1955
Sidney RD over Port Allen Lock	Poor condition + traffic exposure	Poor	400	1966
La0995 over False Branch	Poor condition + traffic exposure	Poor	196	1964
Grand RD over Drainage Canal	Poor condition + traffic exposure	Poor	90	1975

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.