Delta County Bridge Report Card

Delta County scores 95 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A95 / 100

Local infrastructure snapshot

Delta County, Michigan

Delta County has 86 bridges in the National Bridge Inventory, with 0 rated poor and 2 rated scour-critical. Its poor-condition share of 0.0% is at or below the 11.0% statewide average.

86Total Bridges

0Poor (0.0%)

52Fair (60.5%)

2Scour-Critical

Quote-Ready Local Facts

0.0%of county bridges are in poor condition, compared with 11.0% statewide and 6.7% nationally.

0daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 2.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Delta County a Bridge Condition Exposure Score of 95/100 (A). The county has 86 bridges in the National Bridge Inventory, including 0 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 0 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	0.0%	0.0
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	2.3%	4.7
Average age vs national baseline	10	50 years vs 48 nationally	0.8
Traffic-data completeness	5	187,107 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	0.0%
State Poor-Condition Share	11.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.3%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	0 vehicles/day

Bridges to Watch

Oldest Listed BridgeUs-2|us-41 over Portage Creek — built in 1928 All County BridgesBrowse every bridge record in Delta County.

Top Bridges to Watch in Delta County

Bridge	Reason	Condition	Daily Traffic	Year Built
Us-2 Us-41 over Ford River	Scour-critical foundation rating	Fair	13,600	1941
Us-2 over Big Fishdam River	Scour-critical foundation rating	Fair	3,462	1936
Us-2\|us-41\|m-35 over Escanaba River	High traffic	Good	21,906	2016
Us-2\|us-41 over Portage Creek	High traffic	Fair	14,094	1928
Us-2\|us-41 over Willow Creek	High traffic	Fair	12,255	1979
Us-2 over Rapid River	High traffic	Fair	8,505	1931
Us-2 over Tacoosh River	High traffic	Fair	8,505	1990
Us-2 over Canadian National Rr	High traffic	Fair	8,019	1935
Us-2\|us-41 over Bark River	High traffic	Good	7,896	1931
6th Avenue North over Willow Creek	High traffic	Good	7,500	2007

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.