N28 690th ST over Whistlers Branch
GoodCass County, Iowa · 074350302 · Structure no. 000000000096851
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected March 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 44 ft
- 3 main spans
- Daily traffic
- 190
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N28 690th ST over Whistlers Branch is a concrete continuous culvert carrying N28 690th ST over Whistlers Branch in Cass County, Iowa. It was built in 2016, so it is 9 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 190 vehicles a day, roughly 19% of them trucks, projected to reach 190 by 2043. The structure is 44 ft (13.4 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N28 690th ST over Whistlers Branch built?
It was built in 2016, making it 9 years old in 2025.
What condition is N28 690th ST over Whistlers Branch 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 March 2022.
How much traffic does N28 690th ST over Whistlers Branch carry?
About 190 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is N28 690th ST over Whistlers Branch?
The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).
Who owns N28 690th ST over Whistlers Branch?
It is owned by the County Highway Agency.