Polk Road over Shad Creek Drain
PoorGratiot County, Michigan · Sec 19-30 Lafayette Twp · Structure no. 000000000003210
- Built
- 1936
- 89 years old, rebuilt 1986
- Condition
- Poor
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 24 ft
- 1 main span
- Daily traffic
- 83
- 2004 count
- Owner
- County
- County Highway Agency
About this bridge
Polk Road over Shad Creek Drain is a prestressed concrete box beam or girders - multiple carrying Polk Road over Shad Creek Drain in Gratiot County, Michigan. It was built in 1936 and reconstructed in 1986, so it is 89 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 83 vehicles a day, projected to reach 103 by 2024. The structure is 24 ft (7.3 m) long and 24 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Polk Road over Shad Creek Drain built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1986.
What condition is Polk Road over Shad Creek Drain in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Polk Road over Shad Creek Drain carry?
About 83 vehicles per day (2004 count).
How long is Polk Road over Shad Creek Drain?
The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.
Who owns Polk Road over Shad Creek Drain?
It is owned by the County Highway Agency.