M-120 over Markle Drain
Muskegon County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M-120 over Markle Drain in Muskegon County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 6,670 vehicles a day (traffic count year 2007).
- Its listed owner is the state highway agency.
- It is one of 28 of the 143 inventoried bridges in Muskegon County rated good (19.6%); 16 (11.2%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.42786, -86.03926)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 39 ft |
| Location | 2.8 Mi S of M-82 |
| NBI structure number | 000000000007552 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Muskegon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-31 over I-96 | 1959 | 62,644 | Fair |
| US-31 NB over Mi Shore RR & Laketon Av | 1960 | 32,065 | Fair |
| US-31 NB over Black Creek | 1959 | 31,322 | Fair |
| US-31 SB over Black Creek | 1949 | 31,322 | Fair |
| I-96 over Hile Rd | 1961 | 31,000 | Fair |
| I-96 EB over Airline Road | 1961 | 29,245 | Fair |
All bridges nearby: Muskegon County, MI bridge conditions · every bridge in Muskegon County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.