W 35 over US 20
FairBuchanan County, Iowa · 2.5 Mi. E of Jct. 150 · Structure no. 000000000603635
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 300 ft
- 4 main spans
- Daily traffic
- 776
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
W 35 over US 20 is a prestressed concrete stringer/multi-beam or girder carrying W 35 over US 20 in Buchanan County, Iowa. It was built in 1978, so it is 47 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 776 vehicles a day, roughly 24% of them trucks, projected to reach 776 by 2043. The structure is 300 ft (91.4 m) long and 34 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W 35 over US 20 built?
It was built in 1978, making it 47 years old in 2025.
What condition is W 35 over US 20 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.
How much traffic does W 35 over US 20 carry?
About 776 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is W 35 over US 20?
The structure is 300 ft (91.4 m) long with a longest span of 96 ft (29.3 m) and a deck 34 ft wide.
Who owns W 35 over US 20?
It is owned by the State Highway Agency.