Bridge conditions in Livingston County, Michigan
165 inventoried bridges · 23 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Livingston County has 23 bridges rated poor out of 165 inventoried, a 13.9% share that puts it well above the national rate of about 7%.
- 23 of the 165 bridges in Livingston County, Michigan, are rated in poor condition (13.9%) in the 2025 National Bridge Inventory, as of .
- 47 bridges (28.5%) are rated good and 95 (57.6%) fair.
- The median Livingston County bridge was built in 1962.
- The busiest poor-rated bridge is US-23 over M-36 (built 1960), carrying about 64,800 vehicles a day.
Good 28.5% · Fair 57.6% · Poor 13.9% of 165 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-23 over M-36 | 1960 | 64,800 | Poor |
| I-96 WB Cd over US-23 SB | 2016 | 51,600 | Good |
| I-96 WB over US-23 SB | 2015 | 51,600 | Fair |
| I-96 EB over US-23 NB | 2015 | 51,600 | Fair |
| I-96 WB over US-23 NB | 2015 | 51,600 | Fair |
| I-96 EB Cd over US-23 SB | 2016 | 51,588 | Good |
| I-96 EB Cd over Old US-23 | 2016 | 51,588 | Good |
| I-96 WB Cd over Old US-23 | 2016 | 51,588 | Good |
| I-96 EB over US-23 SB | 2015 | 51,588 | Good |
| I-96 EB over Old US-23 | 2015 | 51,588 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Livingston County → - all 165, busiest first, each with its own condition record.
All of Michigan: Michigan bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.