Ia 9 over W Fork Little Sioux Rvr
PoorDickinson County, Iowa · 4.9 Mi. W of Ia 86 · Structure no. 000000000023700
- Built
- 1929
- 96 years old, rebuilt 1963
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 67 ft
- 2 main spans
- Daily traffic
- 4,310
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 9 over W Fork Little Sioux Rvr is a steel continuous stringer/multi-beam or girder carrying Ia 9 over W Fork Little Sioux Rvr in Dickinson County, Iowa. It was built in 1929 and reconstructed in 1963, so it is 96 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 4,310 vehicles a day, roughly 11% of them trucks, projected to reach 4,310 by 2043. The structure is 67 ft (20.4 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 9 over W Fork Little Sioux Rvr built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1963.
What condition is Ia 9 over W Fork Little Sioux Rvr in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does Ia 9 over W Fork Little Sioux Rvr carry?
About 4,310 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is Ia 9 over W Fork Little Sioux Rvr?
The structure is 67 ft (20.4 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.
Who owns Ia 9 over W Fork Little Sioux Rvr?
It is owned by the State Highway Agency.