Alcona County Bridge Report Card

Alcona County scores 45 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F45 / 100

Local infrastructure snapshot

Alcona County, Michigan

Alcona County has 27 bridges in the National Bridge Inventory, with 5 rated poor and 1 rated scour-critical. Its poor-condition share of 18.5% is above the 11.0% statewide average. Poor-condition bridges carry about 3,338 daily vehicle crossings.

27Total Bridges

5Poor (18.5%)

9Fair (33.3%)

1Scour-Critical

Quote-Ready Local Facts

18.5%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

3,338daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 3.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Alcona County a Bridge Condition Exposure Score of 45/100 (F). The county has 27 bridges in the National Bridge Inventory, including 5 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 3,338 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	18.5%	37.0
Poor-condition traffic exposure	25	14.6% of measured traffic	11.0
Scour-critical bridge share	20	3.7%	7.4
Average age vs national baseline	10	43 years vs 48 nationally	0.0
Traffic-data completeness	5	22,831 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	18.5%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.7%
Average Bridge Age	43 years
Poor-Condition Traffic Exposure	3,338 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeHurbert Road over Thunder Bay River — 1,730 vehicles/day Oldest Listed BridgeUs-23 over Black River — built in 1935 All County BridgesBrowse every bridge record in Alcona County.

Top Bridges to Watch in Alcona County

Bridge	Reason	Condition	Daily Traffic	Year Built
Hubbard Lake Road over Sucker Creek	Poor condition + traffic exposure	Poor	830	1936
Hurbert Road over Thunder Bay River	Poor condition + traffic exposure	Poor	1,730	1955
Cruzen Road over So Branch Of Pine River	Poor condition + traffic exposure	Poor	339	1984
Lakeshore Drive over Black River	Poor condition + traffic exposure	Poor	280	1984
Mcconnel Road over East Branch Pine River	Poor condition + traffic exposure	Poor	159	1935
Us-23 over Black River	High traffic	Fair	4,714	1935
County HWY F41 over Van Etten Creek	High traffic	Fair	2,770	1956
County HWY F41 over Van Etten Creek	High traffic	Fair	2,770	1956
County HWY F41 over Pine River	High traffic	Fair	2,250	1956
Mikado Glennie RD over Pine River	High traffic	Fair	1,450	1995

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.