W40 over Des Moines River
PoorVan Buren County, Iowa · 068081704 · Structure no. 000000000050350
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected July 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 937 ft
- 7 main spans
- Daily traffic
- 970
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
W40 over Des Moines River is a steel continuous girder and floorbeam system carrying W40 over Des Moines River in Van Buren County, Iowa. It was built in 1960, so it is 65 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 970 vehicles a day, roughly 22% of them trucks, projected to reach 970 by 2043. The structure is 937 ft (285.6 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W40 over Des Moines River built?
It was built in 1960, making it 65 years old in 2025.
What condition is W40 over Des Moines River 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 July 2023.
How much traffic does W40 over Des Moines River carry?
About 970 vehicles per day (2022 count), of which roughly 22% are trucks.
How long is W40 over Des Moines River?
The structure is 937 ft (285.6 m) long with a longest span of 145 ft (44.2 m) and a deck 35 ft wide.
Who owns W40 over Des Moines River?
It is owned by the County Highway Agency.