Maries County Bridge Report Card

Maries County scores 61 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D61 / 100

Local infrastructure snapshot

Maries County, Missouri

Maries County has 69 bridges in the National Bridge Inventory, with 10 rated poor and 1 rated scour-critical. Its poor-condition share of 14.5% is above the 8.8% statewide average. Poor-condition bridges carry about 2,685 daily vehicle crossings.

69Total Bridges

10Poor (14.5%)

37Fair (53.6%)

1Scour-Critical

Quote-Ready Local Facts

14.5%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.

2,685daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 1.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Maries County a Bridge Condition Exposure Score of 61/100 (D). The county has 69 bridges in the National Bridge Inventory, including 10 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 2,685 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	14.5%	29.0
Poor-condition traffic exposure	25	7.9% of measured traffic	5.9
Scour-critical bridge share	20	1.4%	2.9
Average age vs national baseline	10	51 years vs 48 nationally	1.3
Traffic-data completeness	5	34,115 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	14.5%
State Poor-Condition Share	8.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.4%
Average Bridge Age	51 years
Poor-Condition Traffic Exposure	2,685 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeMo 42 E over Fly CR — 457 vehicles/day Oldest Listed BridgeMo 28 E over CR — built in 1926 All County BridgesBrowse every bridge record in Maries County.

Top Bridges to Watch in Maries County

Bridge	Reason	Condition	Daily Traffic	Year Built
Mo 42 E over Fly CR	Poor condition + traffic exposure	Poor	457	1962
Mo 42 E over Maries Rvr	Poor condition + traffic exposure	Poor	457	1963
Mo 42 E over Gasconade Rvr	Poor condition + traffic exposure	Poor	455	1970
RT M E over Buck Elk CR	Poor condition + traffic exposure	Poor	371	1935
RT Aa S over Little Maries Rvr	Poor condition + traffic exposure	Poor	360	1966
RT Aa S over Maries Rvr	Poor condition + traffic exposure	Poor	360	1966
County RD 213 over Fly CR	Poor condition + traffic exposure	Poor	100	1940
County RD 519 over Spring CR	Poor condition + traffic exposure	Poor	45	1930
County RD 614 over Maries Rvr	Poor condition + traffic exposure	Poor	40	1940
County RD 405 over Br Of Lower Peavin	Poor condition + traffic exposure	Poor	40	1940

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.