Gladwin County Bridge Report Card

Gladwin County scores 60 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D60 / 100

Local infrastructure snapshot

Gladwin County, Michigan

Gladwin County has 63 bridges in the National Bridge Inventory, with 4 rated poor and 12 rated scour-critical. Its poor-condition share of 6.3% is at or below the 11.0% statewide average. Poor-condition bridges carry about 7,400 daily vehicle crossings.

63Total Bridges

4Poor (6.3%)

35Fair (55.6%)

12Scour-Critical

Quote-Ready Local Facts

6.3%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

7,400daily vehicle crossings are on poor-condition bridges in the county.

12bridges are rated scour-critical, or 19.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Gladwin County a Bridge Condition Exposure Score of 60/100 (D). The county has 63 bridges in the National Bridge Inventory, including 4 in poor condition and 12 rated scour-critical. Poor-condition bridges carry about 7,400 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	6.3%	12.7
Poor-condition traffic exposure	25	9.5% of measured traffic	7.1
Scour-critical bridge share	20	19.0%	20.0
Average age vs national baseline	10	45 years vs 48 nationally	0.0
Traffic-data completeness	5	77,973 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	6.3%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	19.0%
Average Bridge Age	45 years
Poor-Condition Traffic Exposure	7,400 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeM-18 over Tobacco River — 6,100 vehicles/day Oldest Listed BridgePorter Street over Tobacco River — built in 1917 All County BridgesBrowse every bridge record in Gladwin County.

Top Bridges to Watch in Gladwin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Bard RD over S Br Of Tobacco Riv	Poor condition + traffic exposure	Poor	220	1970
M-18 over Tobacco River	Poor condition + traffic exposure	Poor	6,100	1939
Dale Road over Tobacco River	Poor condition + traffic exposure	Poor	585	1970
Highwood Road over Tittabawasee River	Poor condition + traffic exposure	Poor	495	1984
M-18 over Farm Drain	Scour-critical foundation rating	Fair	5,052	1937
M-61 over Tittabawassee River	Scour-critical foundation rating	Fair	3,302	1958
M-30 over Tittabawassee River	Scour-critical foundation rating	Fair	2,536	1928
M-30 over Sugar River	Scour-critical foundation rating	Fair	2,536	1954
M-30 over W Br Tittabawassee River	Scour-critical foundation rating	Fair	2,536	1954
M-30 over Little Tobacco River	Scour-critical foundation rating	Fair	2,536	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.