S 40 over Drainage
PoorWayne County, Iowa · 068211502 · Structure no. 000000000339051
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected October 2022
- Type
- Slab
- Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 680
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
S 40 over Drainage is a concrete continuous slab carrying S 40 over Drainage in Wayne County, Iowa. It was built in 1972, so it is 53 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 680 vehicles a day, roughly 19% of them trucks, projected to reach 680 by 2042. The structure is 128 ft (39 m) long and 32 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 40 over Drainage built?
It was built in 1972, making it 53 years old in 2025.
What condition is S 40 over Drainage 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 October 2022.
How much traffic does S 40 over Drainage carry?
About 680 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is S 40 over Drainage?
The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.
Who owns S 40 over Drainage?
It is owned by the County Highway Agency.