Muskegon County Bridge Report Card

Muskegon 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

Muskegon County, Michigan

Muskegon County has 143 bridges in the National Bridge Inventory, with 16 rated poor and 8 rated scour-critical. Its poor-condition share of 11.2% is above the 11.0% statewide average. Poor-condition bridges carry about 30,962 daily vehicle crossings.

143Total Bridges

16Poor (11.2%)

99Fair (69.2%)

8Scour-Critical

Quote-Ready Local Facts

11.2%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

30,962daily vehicle crossings are on poor-condition bridges in the county.

8bridges are rated scour-critical, or 5.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Muskegon County a Bridge Condition Exposure Score of 61/100 (D). The county has 143 bridges in the National Bridge Inventory, including 16 in poor condition and 8 rated scour-critical. Poor-condition bridges carry about 30,962 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	11.2%	22.4
Poor-condition traffic exposure	25	2.7% of measured traffic	2.0
Scour-critical bridge share	20	5.6%	11.2
Average age vs national baseline	10	57 years vs 48 nationally	3.6
Traffic-data completeness	5	1,144,664 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	11.2%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.6%
Average Bridge Age	57 years
Poor-Condition Traffic Exposure	30,962 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUs-31br over White River — 8,531 vehicles/day Oldest Listed BridgeSternberg Road over Norris Creek — built in 1900 All County BridgesBrowse every bridge record in Muskegon County.

Top Bridges to Watch in Muskegon County

Bridge	Reason	Condition	Daily Traffic	Year Built
M-46 over Crockery Creek	Poor condition + traffic exposure	Poor	5,976	1958
Us-31br over White River	Poor condition + traffic exposure	Poor	8,531	1986
White Lake Drive over Us-31 SB	Poor condition + traffic exposure	Poor	3,898	1964
White Lake Drive over Us-31 NB	Poor condition + traffic exposure	Poor	3,898	1964
Amity ST over C O Railroad	Poor condition + traffic exposure	Poor	1,972	1900
Ryerson Road over Cedar Creek	Poor condition + traffic exposure	Poor	1,800	1940
Evanston RD over Black Creek	Poor condition + traffic exposure	Poor	1,406	1963
Lakewood RD over Us-31 SB	Poor condition + traffic exposure	Poor	1,304	1964
Ottawa ST over Muskegon River S Branch	Poor condition + traffic exposure	Poor	599	1929
Farr RD over Norris Creek	Poor condition + traffic exposure	Poor	500	1972

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.