299th Ave over Wash
GoodMaricopa County, Arizona · 0.33 Mi/N of Patton RD · Structure no. 11721
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 701
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
299th Ave over Wash is a concrete continuous culvert carrying 299th Ave over Wash in Maricopa County, Arizona. It was built in 1990, so it is 35 years old, younger than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 701 vehicles a day, roughly 5% of them trucks, projected to reach 711 by 2041. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 299th Ave over Wash built?
It was built in 1990, making it 35 years old in 2025.
What condition is 299th Ave over Wash in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.
How much traffic does 299th Ave over Wash carry?
About 701 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is 299th Ave over Wash?
The structure is 45 ft (13.7 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.
Who owns 299th Ave over Wash?
It is owned by the County Highway Agency.