McClain County Bridge Report Card

McClain County scores 88 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B88 / 100

Local infrastructure snapshot

McClain County, Oklahoma

McClain County has 242 bridges in the National Bridge Inventory, with 11 rated poor and 1 rated scour-critical. Its poor-condition share of 4.5% is at or below the 7.5% statewide average. Poor-condition bridges carry about 23,750 daily vehicle crossings.

242Total Bridges

11Poor (4.5%)

132Fair (54.5%)

1Scour-Critical

Quote-Ready Local Facts

4.5%of county bridges are in poor condition, compared with 7.5% statewide and 6.7% nationally.

23,750daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives McClain County a Bridge Condition Exposure Score of 88/100 (B). The county has 242 bridges in the National Bridge Inventory, including 11 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 23,750 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	4.5%	9.1
Poor-condition traffic exposure	25	2.2% of measured traffic	1.6
Scour-critical bridge share	20	0.4%	0.8
Average age vs national baseline	10	42 years vs 48 nationally	0.0
Traffic-data completeness	5	1,098,939 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	4.5%
State Poor-Condition Share	7.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.4%
Average Bridge Age	42 years
Poor-Condition Traffic Exposure	23,750 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI-35 over S.h. 39 Under — 14,950 vehicles/day Oldest Listed BridgeU.s. 77 over Creek — built in 1926 All County BridgesBrowse every bridge record in McClain County.

Top Bridges to Watch in McClain County

Bridge	Reason	Condition	Daily Traffic	Year Built
E1470 over Creek	Poor condition + traffic exposure	Poor	100	1988
I-35 over S.h. 39 Under	Poor condition + traffic exposure	Poor	14,950	1968
S.h. 74 over I-35 Under	Poor condition + traffic exposure	Poor	5,400	1959
N3095 over Walnut Creek	Poor condition + traffic exposure	Poor	2,400	1927
S.h. 24 over Finn Creek	Poor condition + traffic exposure	Poor	300	1969
E1240 over Stinson Creek	Poor condition + traffic exposure	Poor	100	1985
N3035 over Buffalo Creek	Poor condition + traffic exposure	Poor	100	1985
N2990 over Creek	Poor condition + traffic exposure	Poor	100	1985
N2990 over Walnut Creek	Poor condition + traffic exposure	Poor	100	1987
E1370 over Red Blanket Creek	Poor condition + traffic exposure	Poor	100	1991

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.