Ogemaw County Bridge Report Card
Ogemaw County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Ogemaw County, Michigan
Ogemaw County has 31 bridges in the National Bridge Inventory, with 1 rated poor and 3 rated scour-critical. Its poor-condition share of 3.2% is at or below the 11.0% statewide average. Poor-condition bridges carry about 643 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Ogemaw County a Bridge Condition Exposure Score of 70/100 (C). The county has 31 bridges in the National Bridge Inventory, including 1 in poor condition and 3 rated scour-critical. Poor-condition bridges carry about 643 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 3.2% | 6.5 |
| Poor-condition traffic exposure | 25 | 0.6% of measured traffic | 0.5 |
| Scour-critical bridge share | 20 | 9.7% | 19.4 |
| Average age vs national baseline | 10 | 56 years vs 48 nationally | 3.4 |
| Traffic-data completeness | 5 | 102,327 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 | 3.2% |
| State Poor-Condition Share | 11.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 9.7% |
| Average Bridge Age | 56 years |
| Poor-Condition Traffic Exposure | 643 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Ogemaw County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Peach Lake RD over W Br Rifle River | Poor condition + traffic exposure | Poor | 643 | 1948 |
| M-55 over Rifle River | Scour-critical foundation rating | Fair | 6,120 | 1937 |
| M-33 over Klacking Creek | Scour-critical foundation rating | Fair | 4,423 | 1936 |
| Peters Road over Rifle River | Scour-critical foundation rating | Good | 366 | 1980 |
| I-75 Bl|county 23 over Ogemaw Creek | High traffic | Fair | 13,157 | 1932 |
| I-75 SB over M-55 | High traffic | Fair | 7,700 | 1972 |
| I-75 NB over M-55 | High traffic | Fair | 7,700 | 1972 |
| I-75 NB over Ski Park RD | High traffic | Fair | 7,368 | 1972 |
| I-75 SB over Ski Park RD | High traffic | Fair | 7,368 | 1972 |
| I-75 SB over I-75 Bl|cook RD | High traffic | Fair | 6,301 | 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.