Logan County Bridge Report Card

Logan County scores 48 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F48 / 100

Local infrastructure snapshot

Logan County, Oklahoma

Logan County has 280 bridges in the National Bridge Inventory, with 55 rated poor and 13 rated scour-critical. Its poor-condition share of 19.6% is above the 7.5% statewide average. Poor-condition bridges carry about 10,544 daily vehicle crossings.

280Total Bridges

55Poor (19.6%)

169Fair (60.4%)

13Scour-Critical

Quote-Ready Local Facts

19.6%of county bridges are in poor condition, compared with 7.5% statewide and 6.7% nationally.

10,544daily vehicle crossings are on poor-condition bridges in the county.

13bridges are rated scour-critical, or 4.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Logan County a Bridge Condition Exposure Score of 48/100 (F). The county has 280 bridges in the National Bridge Inventory, including 55 in poor condition and 13 rated scour-critical. Poor-condition bridges carry about 10,544 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	19.6%	39.3
Poor-condition traffic exposure	25	2.4% of measured traffic	1.8
Scour-critical bridge share	20	4.6%	9.3
Average age vs national baseline	10	51 years vs 48 nationally	1.4
Traffic-data completeness	5	432,494 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	19.6%
State Poor-Condition Share	7.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.6%
Average Bridge Age	51 years
Poor-Condition Traffic Exposure	10,544 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeS.h. 74 over Cottonwood Creek — 5,400 vehicles/day Oldest Listed BridgeN3270 over Bear Creek — built in 1908 All County BridgesBrowse every bridge record in Logan County.

Top Bridges to Watch in Logan County

Bridge	Reason	Condition	Daily Traffic	Year Built
Triple X Rd. over Fitzgerald Creek	Poor condition + traffic exposure	Poor	450	1954
E0750 over Creek	Poor condition + traffic exposure	Poor	100	1937
E0630 over Spring Creek	Poor condition + traffic exposure	Poor	100	1940
E0640 over Middle Beaver Creek	Poor condition + traffic exposure	Poor	100	1947
E0690 over Creek	Poor condition + traffic exposure	Poor	100	1949
E0680 over Shawnee Creek	Poor condition + traffic exposure	Poor	100	1950
E0640 over Creek	Poor condition + traffic exposure	Poor	100	1950
E0650 over Bridge Creek	Poor condition + traffic exposure	Poor	100	1950
N3140 over Creek	Poor condition + traffic exposure	Poor	100	1957
E0600 over Otter Creek	Poor condition + traffic exposure	Poor	100	1960

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.