Missouri Ave over SR 51
FairMaricopa County, Arizona · SR 51 & Missouri Ave · Structure no. 02425
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected December 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 194 ft
- 2 main spans
- Daily traffic
- 12,790
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Missouri Ave over SR 51 is a prestressed concrete continuous box beam or girders - single or spread carrying Missouri Ave over SR 51 in Maricopa County, Arizona. It was built in 1988, so it is 37 years old, younger than the Arizona average of 47.8 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 12,790 vehicles a day, roughly 5% of them trucks, projected to reach 12,800 by 2039. The structure is 194 ft (59.1 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 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 Missouri Ave over SR 51 built?
It was built in 1988, making it 37 years old in 2025.
What condition is Missouri Ave over SR 51 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 December 2023.
How much traffic does Missouri Ave over SR 51 carry?
About 12,790 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is Missouri Ave over SR 51?
The structure is 194 ft (59.1 m) long with a longest span of 95 ft (29 m) and a deck 82 ft wide.
Who owns Missouri Ave over SR 51?
It is owned by the State Highway Agency.