Route 420 over Escanaba River
FairDelta County, Michigan · 2 MI West of Gladstone · Structure no. 000000000002120
- Built
- 1974
- 51 years old, rebuilt 2015
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 244 ft
- 2 main spans
- Daily traffic
- 1,539
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Route 420 over Escanaba River is a steel continuous stringer/multi-beam or girder carrying Route 420 over Escanaba River in Delta County, Michigan. It was built in 1974 and reconstructed in 2015, so it is 51 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,539 vehicles a day, roughly 5% of them trucks, projected to reach 1,600 by 2040. The structure is 244 ft (74.5 m) long and 37 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 420 over Escanaba River built?
It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2015.
What condition is Route 420 over Escanaba River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does Route 420 over Escanaba River carry?
About 1,539 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Route 420 over Escanaba River?
The structure is 244 ft (74.5 m) long with a longest span of 120 ft (36.6 m) and a deck 37 ft wide.
Who owns Route 420 over Escanaba River?
It is owned by the County Highway Agency.