99th Ave over Rid Canal
GoodMaricopa County, Arizona · 0.25 MI N/ Mcdowell RD · Structure no. 09672
- Built
- 1981
- 44 years old, rebuilt 1984
- Condition
- Good
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 14,316
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
99th Ave over Rid Canal is a prestressed concrete box beam or girders - multiple carrying 99th Ave over Rid Canal in Maricopa County, Arizona. It was built in 1981 and reconstructed in 1984, so it is 44 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 14,316 vehicles a day, roughly 10% of them trucks, projected to reach 14,326 by 2042. The structure is 37 ft (11.3 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 99th Ave over Rid Canal built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1984.
What condition is 99th Ave over Rid Canal 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 November 2024.
How much traffic does 99th Ave over Rid Canal carry?
About 14,316 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is 99th Ave over Rid Canal?
The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 80 ft wide.
Who owns 99th Ave over Rid Canal?
It is owned by the County Highway Agency.