Marshall County Bridge Report Card

Marshall County scores 71 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C71 / 100

Local infrastructure snapshot

Marshall County, Oklahoma

Marshall County has 79 bridges in the National Bridge Inventory, with 9 rated poor and 1 rated scour-critical. Its poor-condition share of 11.4% is above the 7.5% statewide average. Poor-condition bridges carry about 800 daily vehicle crossings.

79Total Bridges

9Poor (11.4%)

29Fair (36.7%)

1Scour-Critical

Quote-Ready Local Facts

11.4%of county bridges are in poor condition, compared with 7.5% statewide and 6.7% nationally.

800daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 1.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Marshall County a Bridge Condition Exposure Score of 71/100 (C). The county has 79 bridges in the National Bridge Inventory, including 9 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 800 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	11.4%	22.8
Poor-condition traffic exposure	25	0.8% of measured traffic	0.6
Scour-critical bridge share	20	1.3%	2.5
Average age vs national baseline	10	57 years vs 48 nationally	3.5
Traffic-data completeness	5	104,497 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	11.4%
State Poor-Condition Share	7.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.3%
Average Bridge Age	57 years
Poor-Condition Traffic Exposure	800 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeN3580 Moore RD over Rock Creek — 100 vehicles/day Oldest Listed BridgeS.h. 99 over Creek — built in 1932 All County BridgesBrowse every bridge record in Marshall County.

Top Bridges to Watch in Marshall County

Bridge	Reason	Condition	Daily Traffic	Year Built
E2030 Smiley Rd. over Creek	Poor condition + traffic exposure	Poor	50	1939
N3580 Moore RD over Rock Creek	Poor condition + traffic exposure	Poor	100	1936
N3057 3rd St. over Whiskey Creek	Poor condition + traffic exposure	Poor	100	1937
N3560 over Rooster Creek	Poor condition + traffic exposure	Poor	100	1940
D3538 over Little Glasses Creek	Poor condition + traffic exposure	Poor	100	1940
Fas 4814 over Creek	Poor condition + traffic exposure	Poor	100	1986
4820c Mcmillan RD over Little Hauani Creek	Poor condition + traffic exposure	Poor	100	1988
IRR E1970 over Wolf Creek	Poor condition + traffic exposure	Poor	100	2004
E2040 over Turkey Creek	Poor condition + traffic exposure	Poor	50	1989
U.s. 70 over Whiskey Creek	High traffic	Fair	10,200	1933

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.