Livingston County Bridge Report Card
Livingston County scores 51 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Livingston County, Michigan
Livingston County has 165 bridges in the National Bridge Inventory, with 23 rated poor and 11 rated scour-critical. Its poor-condition share of 13.9% is above the 11.0% statewide average. Poor-condition bridges carry about 203,930 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Livingston County a Bridge Condition Exposure Score of 51/100 (F). The county has 165 bridges in the National Bridge Inventory, including 23 in poor condition and 11 rated scour-critical. Poor-condition bridges carry about 203,930 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 | 13.9% | 27.9 |
| Poor-condition traffic exposure | 25 | 9.0% of measured traffic | 6.8 |
| Scour-critical bridge share | 20 | 6.7% | 13.3 |
| Average age vs national baseline | 10 | 52 years vs 48 nationally | 1.5 |
| Traffic-data completeness | 5 | 2,257,140 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 | 13.9% |
| State Poor-Condition Share | 11.0% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 6.7% |
| Average Bridge Age | 52 years |
| Poor-Condition Traffic Exposure | 203,930 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Livingston County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Dunham Road over Ore Creek | Poor condition + traffic exposure | Poor | 730 | 1923 |
| Us-23 over M-36 | Poor condition + traffic exposure | Poor | 64,800 | 1960 |
| I-96 EB over Grand River AVE | Poor condition + traffic exposure | Poor | 44,600 | 1962 |
| I-96 WB over Grand River AVE | Poor condition + traffic exposure | Poor | 44,600 | 1962 |
| Dexter-pinckney RD over Honey Creek | Poor condition + traffic exposure | Poor | 8,901 | 1985 |
| Faussett Road over Bogue Creek | Poor condition + traffic exposure | Poor | 8,772 | 1925 |
| Michigan AVE over Mdot Rr Corridor | Poor condition + traffic exposure | Poor | 6,900 | 1980 |
| Rickett Road over Huron River | Poor condition + traffic exposure | Poor | 5,910 | 1973 |
| Mason Road over Red Cedar River Imp. Drn | Poor condition + traffic exposure | Poor | 5,110 | 1990 |
| I-96 Bl (on Rmp) over I-96 WB | Poor condition + traffic exposure | Poor | 4,897 | 1961 |
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.