Osceola County Bridge Report Card

Osceola County scores 62 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D62 / 100

Local infrastructure snapshot

Osceola County, Michigan

Osceola County has 103 bridges in the National Bridge Inventory, with 7 rated poor and 13 rated scour-critical. Its poor-condition share of 6.8% is at or below the 11.0% statewide average. Poor-condition bridges carry about 15,442 daily vehicle crossings.

103Total Bridges

7Poor (6.8%)

60Fair (58.3%)

13Scour-Critical

Quote-Ready Local Facts

6.8%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

15,442daily vehicle crossings are on poor-condition bridges in the county.

13bridges are rated scour-critical, or 12.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Osceola County a Bridge Condition Exposure Score of 62/100 (D). The county has 103 bridges in the National Bridge Inventory, including 7 in poor condition and 13 rated scour-critical. Poor-condition bridges carry about 15,442 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	6.8%	13.6
Poor-condition traffic exposure	25	5.3% of measured traffic	4.0
Scour-critical bridge share	20	12.6%	20.0
Average age vs national baseline	10	43 years vs 48 nationally	0.0
Traffic-data completeness	5	289,074 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	6.8%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	12.6%
Average Bridge Age	43 years
Poor-Condition Traffic Exposure	15,442 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeM-115 over West Branch River — 4,184 vehicles/day Oldest Listed BridgeM-66 over Doc & Tom Creek — built in 1924 All County BridgesBrowse every bridge record in Osceola County.

Top Bridges to Watch in Osceola County

Bridge	Reason	Condition	Daily Traffic	Year Built
M-115 over West Branch River	Poor condition + traffic exposure	Poor	4,184	1937
M-66 over Middle Branch River	Poor condition + traffic exposure	Poor	3,158	1939
M-66 over Muskegon River	Poor condition + traffic exposure	Poor	1,990	1940
Old M-61 over Middle Branch River	Poor condition + traffic exposure	Poor	3,600	1939
M-66 over Doc & Tom Creek	Poor condition + traffic exposure	Poor	1,990	1924
70th Avenue over Franz Creek	Poor condition + traffic exposure	Poor	367	1965
17 Mile Road over Middle Branch River	Poor condition + traffic exposure	Poor	153	1965
Us-131 NB over Hersey Creek	Scour-critical foundation rating	Fair	11,841	1985
Us-131 SB over Hersey Creek	Scour-critical foundation rating	Fair	11,841	1985
Us-10 over Hersey River	Scour-critical foundation rating	Fair	6,569	1958

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.