Cotter RD over Trib to Miller Creek
GoodBlack Hawk County, Iowa · 87-12-04-02-20 · Structure no. 000000000073971
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected November 2021
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 59
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Cotter RD over Trib to Miller Creek is a steel stringer/multi-beam or girder carrying Cotter RD over Trib to Miller Creek in Black Hawk County, Iowa. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 59 vehicles a day, projected to reach 59 by 2043. The structure is 41 ft (12.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | 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 Cotter RD over Trib to Miller Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is Cotter RD over Trib to Miller 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 November 2021.
How much traffic does Cotter RD over Trib to Miller Creek carry?
About 59 vehicles per day (2022 count).
How long is Cotter RD over Trib to Miller Creek?
The structure is 41 ft (12.6 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.
Who owns Cotter RD over Trib to Miller Creek?
It is owned by the County Highway Agency.