Genesee County Bridge Report Card

Genesee County scores 41 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F41 / 100

Local infrastructure snapshot

Genesee County, Michigan

Genesee County has 369 bridges in the National Bridge Inventory, with 53 rated poor and 80 rated scour-critical. Its poor-condition share of 14.4% is above the 11.0% statewide average. Poor-condition bridges carry about 477,257 daily vehicle crossings.

369Total Bridges

53Poor (14.4%)

227Fair (61.5%)

80Scour-Critical

Quote-Ready Local Facts

14.4%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

477,257daily vehicle crossings are on poor-condition bridges in the county.

80bridges are rated scour-critical, or 21.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Genesee County a Bridge Condition Exposure Score of 41/100 (F). The county has 369 bridges in the National Bridge Inventory, including 53 in poor condition and 80 rated scour-critical. Poor-condition bridges carry about 477,257 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	14.4%	28.7
Poor-condition traffic exposure	25	9.1% of measured traffic	6.8
Scour-critical bridge share	20	21.7%	20.0
Average age vs national baseline	10	56 years vs 48 nationally	3.4
Traffic-data completeness	5	5,240,003 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	14.4%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	21.7%
Average Bridge Age	56 years
Poor-Condition Traffic Exposure	477,257 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI-475 over Chavez DR — 63,400 vehicles/day Oldest Listed BridgeLeroy Street over Shiawassee River — built in 1906 All County BridgesBrowse every bridge record in Genesee County.

Top Bridges to Watch in Genesee County

Bridge	Reason	Condition	Daily Traffic	Year Built
I-75 Ramp H & M over Swartz Creek	Poor condition + traffic exposure	Poor	33,600	1969
M-54 over Thread Creek	Poor condition + traffic exposure	Poor	20,772	1976
Baldwin Road over Swartz Creek	Poor condition + traffic exposure	Poor	12,678	1938
Center Road over Thread River	Poor condition + traffic exposure	Poor	7,716	1928
Mt Morris Road over Brent Run	Poor condition + traffic exposure	Poor	6,864	1929
North Road over Shiawassee River	Poor condition + traffic exposure	Poor	5,647	1928
Baldwin Road over Thread River	Poor condition + traffic exposure	Poor	4,097	1928
Seymour Road over Shiawassee River	Poor condition + traffic exposure	Poor	3,587	1930
Morrish Road over Alger Creek	Poor condition + traffic exposure	Poor	3,044	1928
Dodge Road over Brent Run	Poor condition + traffic exposure	Poor	2,595	1926

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.