Six Mile Creek RD over Porter Creek
FairShiawassee County, Michigan · 2.5 MI SW of New Lothrop · Structure no. 000000000009837
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 40
- 1996 count
- Owner
- County
- County Highway Agency
About this bridge
Six Mile Creek RD over Porter Creek is a prestressed concrete box beam or girders - multiple carrying Six Mile Creek RD over Porter Creek in Shiawassee County, Michigan. It was built in 1998, so it is 27 years old, younger 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 75 by 2016. The structure is 43 ft (13 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Six Mile Creek RD over Porter Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is Six Mile Creek RD over Porter Creek 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 April 2024.
How much traffic does Six Mile Creek RD over Porter Creek carry?
About 40 vehicles per day (1996 count), of which roughly 5% are trucks.
How long is Six Mile Creek RD over Porter Creek?
The structure is 43 ft (13 m) long with a longest span of 39 ft (11.8 m) and a deck 31 ft wide.
Who owns Six Mile Creek RD over Porter Creek?
It is owned by the County Highway Agency.