R21 E Emerson ST over Clanton Creek
GoodMadison County, Iowa · 074271100 · Structure no. 000000000004411
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 192 ft
- 3 main spans
- Daily traffic
- 397
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
R21 E Emerson ST over Clanton Creek is a prestressed concrete stringer/multi-beam or girder carrying R21 E Emerson ST over Clanton Creek in Madison County, Iowa. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 397 vehicles a day, roughly 16% of them trucks, projected to reach 397 by 2044. The structure is 192 ft (58.5 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was R21 E Emerson ST over Clanton Creek built?
It was built in 2023, making it 2 years old in 2025.
What condition is R21 E Emerson ST over Clanton 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 August 2024.
How much traffic does R21 E Emerson ST over Clanton Creek carry?
About 397 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is R21 E Emerson ST over Clanton Creek?
The structure is 192 ft (58.5 m) long with a longest span of 69 ft (21 m) and a deck 33 ft wide.
Who owns R21 E Emerson ST over Clanton Creek?
It is owned by the County Highway Agency.