W63 100th Ave over U.S. 20
FairDelaware County, Iowa · 3.5 Mi. E of Jct. Ia 187 · Structure no. 000000000023370
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 270 ft
- 4 main spans
- Daily traffic
- 373
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
W63 100th Ave over U.S. 20 is a steel continuous stringer/multi-beam or girder carrying W63 100th Ave over U.S. 20 in Delaware County, Iowa. It was built in 1970, so it is 55 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 373 vehicles a day, roughly 26% of them trucks, projected to reach 373 by 2044. The structure is 270 ft (82.3 m) long and 33 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 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 W63 100th Ave over U.S. 20 built?
It was built in 1970, making it 55 years old in 2025.
What condition is W63 100th Ave over U.S. 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 May 2024.
How much traffic does W63 100th Ave over U.S. 20 carry?
About 373 vehicles per day (2022 count), of which roughly 26% are trucks.
How long is W63 100th Ave over U.S. 20?
The structure is 270 ft (82.3 m) long with a longest span of 85 ft (25.9 m) and a deck 33 ft wide.
Who owns W63 100th Ave over U.S. 20?
It is owned by the State Highway Agency.