Ia 128 over Dry Mill Creek
GoodClayton County, Iowa · 2.4 Mi. E of Jct. Ia 13 · Structure no. 000000000020691
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 202 ft
- 3 main spans
- Daily traffic
- 1,420
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 128 over Dry Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 128 over Dry Mill Creek in Clayton County, Iowa. It was built in 1979, so it is 46 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 1,420 vehicles a day, roughly 20% of them trucks, projected to reach 1,420 by 2044. The structure is 202 ft (61.6 m) long and 39 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 7 Good | Some minor problems. |
| 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 Ia 128 over Dry Mill Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is Ia 128 over Dry Mill 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 2024.
How much traffic does Ia 128 over Dry Mill Creek carry?
About 1,420 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is Ia 128 over Dry Mill Creek?
The structure is 202 ft (61.6 m) long with a longest span of 97 ft (29.6 m) and a deck 39 ft wide.
Who owns Ia 128 over Dry Mill Creek?
It is owned by the State Highway Agency.