100th ST over S.English River
GoodMahaska County, Iowa · 077140201 · Structure no. 000000000237721
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected December 2022
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 110
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
100th ST over S.English River is a prestressed concrete tee beam carrying 100th ST over S.English River in Mahaska County, Iowa. It was built in 1997, so it is 28 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 110 vehicles a day, projected to reach 110 by 2043. The structure is 52 ft (15.9 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| 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 100th ST over S.English River built?
It was built in 1997, making it 28 years old in 2025.
What condition is 100th ST over S.English River 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 December 2022.
How much traffic does 100th ST over S.English River carry?
About 110 vehicles per day (2022 count).
How long is 100th ST over S.English River?
The structure is 52 ft (15.9 m) long with a longest span of 51 ft (15.5 m) and a deck 32 ft wide.
Who owns 100th ST over S.English River?
It is owned by the County Highway Agency.