Warren RD over US-23
FairWashtenaw County, Michigan · 0.5 MI N of M-14 · Structure no. 000000000010879
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 187 ft
- 4 main spans
- Daily traffic
- 100
- 1997 count
- Owner
- State
- State Highway Agency
About this bridge
Warren RD over US-23 is a prestressed concrete stringer/multi-beam or girder carrying Warren RD over US-23 in Washtenaw County, Michigan. It was built in 1962, so it is 63 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 5 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 60 by 2017. The structure is 187 ft (57 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Warren RD over US-23 built?
It was built in 1962, making it 63 years old in 2025.
What condition is Warren RD over US-23 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 October 2023.
How much traffic does Warren RD over US-23 carry?
About 100 vehicles per day (1997 count), of which roughly 3% are trucks.
How long is Warren RD over US-23?
The structure is 187 ft (57 m) long with a longest span of 58 ft (17.6 m) and a deck 31 ft wide.
Who owns Warren RD over US-23?
It is owned by the State Highway Agency.