Dunn Street over Drainage Ditch #70
GoodStory County, Iowa · Dunn Street · Structure no. 000000000505705
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected December 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 170
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Dunn Street over Drainage Ditch #70 is a concrete continuous culvert carrying Dunn Street over Drainage Ditch #70 in Story County, Iowa. It was built in 1969, so it is 56 years old, older 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 170 vehicles a day, projected to reach 170 by 2043. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dunn Street over Drainage Ditch #70 built?
It was built in 1969, making it 56 years old in 2025.
What condition is Dunn Street over Drainage Ditch #70 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 Dunn Street over Drainage Ditch #70 carry?
About 170 vehicles per day (2022 count).
How long is Dunn Street over Drainage Ditch #70?
The structure is 25 ft (7.7 m) long with a longest span of 12 ft (3.7 m).
Who owns Dunn Street over Drainage Ditch #70?
It is owned by the City or Municipal Highway Agency.