77 ST over Prairie Creek
GoodBenton County, Iowa · 082102001 · Structure no. 000000000070271
- Built
- 2000
- 25 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 204 ft
- 3 main spans
- Daily traffic
- 800
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
77 ST over Prairie Creek is a prestressed concrete stringer/multi-beam or girder carrying 77 ST over Prairie Creek in Benton County, Iowa. It was built in 2000, so it is 25 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 800 vehicles a day, projected to reach 800 by 2043. The structure is 204 ft (62.2 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 77 ST over Prairie Creek built?
It was built in 2000, making it 25 years old in 2025.
What condition is 77 ST over Prairie Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does 77 ST over Prairie Creek carry?
About 800 vehicles per day (2021 count).
How long is 77 ST over Prairie Creek?
The structure is 204 ft (62.2 m) long with a longest span of 72 ft (21.9 m) and a deck 33 ft wide.
Who owns 77 ST over Prairie Creek?
It is owned by the County Highway Agency.