Allen County Bridge Report Card

Allen County scores 60 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D60 / 100

Local infrastructure snapshot

Allen County, Louisiana

Allen County has 178 bridges in the National Bridge Inventory, with 22 rated poor and 10 rated scour-critical. Its poor-condition share of 12.4% is above the 11.2% statewide average. Poor-condition bridges carry about 21,529 daily vehicle crossings.

178Total Bridges

22Poor (12.4%)

130Fair (73.0%)

10Scour-Critical

Quote-Ready Local Facts

12.4%of county bridges are in poor condition, compared with 11.2% statewide and 6.7% nationally.

21,529daily vehicle crossings are on poor-condition bridges in the county.

10bridges are rated scour-critical, or 5.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Allen County a Bridge Condition Exposure Score of 60/100 (D). The county has 178 bridges in the National Bridge Inventory, including 22 in poor condition and 10 rated scour-critical. Poor-condition bridges carry about 21,529 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	12.4%	24.7
Poor-condition traffic exposure	25	5.5% of measured traffic	4.1
Scour-critical bridge share	20	5.6%	11.2
Average age vs national baseline	10	41 years vs 48 nationally	0.0
Traffic-data completeness	5	391,785 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	12.4%
State Poor-Condition Share	11.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.6%
Average Bridge Age	41 years
Poor-Condition Traffic Exposure	21,529 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUs0190 over West Calcasieu River Rel — 3,923 vehicles/day Oldest Listed BridgeLa0026 over Brushy Branch — built in 1927 All County BridgesBrowse every bridge record in Allen County.

Top Bridges to Watch in Allen County

Bridge	Reason	Condition	Daily Traffic	Year Built
La0026 over Creek	Poor condition + traffic exposure	Poor	2,151	1968
La0026 over Creek	Poor condition + traffic exposure	Poor	1,931	1968
La0026 over Creek	Poor condition + traffic exposure	Poor	1,931	1968
Us0190 over West Calcasieu River Rel	Poor condition + traffic exposure	Poor	3,923	1980
Us0190 over West Calcasieu River Rel	Poor condition + traffic exposure	Poor	3,923	1980
Us0190 over Bear Creek	Poor condition + traffic exposure	Poor	3,263	1991
Poplar ST over Mill Creek	Poor condition + traffic exposure	Poor	750	1965
Topsy Bel RD over Barnes Creek	Poor condition + traffic exposure	Poor	664	1972
Park RD over Creek	Poor condition + traffic exposure	Poor	642	1965
La1156 over Mill Creek	Poor condition + traffic exposure	Poor	550	1966

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.