Alder Street over Parker Horn
FairGrant County, Washington · Moses Lake City · Structure no. 085202000000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected November 2023
- Type
- Slab
- Concrete
- Length
- 148 ft
- 7 main spans
- Daily traffic
- 29,630
- 2017 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Alder Street over Parker Horn is a concrete slab carrying Alder Street over Parker Horn in Grant County, Washington. It was built in 1958, so it is 67 years old, older than the Washington average of 49.8 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 29,630 vehicles a day, roughly 2% of them trucks, projected to reach 40,000 by 2039. The structure is 148 ft (45.1 m) long and 67 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alder Street over Parker Horn built?
It was built in 1958, making it 67 years old in 2025.
What condition is Alder Street over Parker Horn 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 November 2023.
How much traffic does Alder Street over Parker Horn carry?
About 29,630 vehicles per day (2017 count), of which roughly 2% are trucks.
How long is Alder Street over Parker Horn?
The structure is 148 ft (45.1 m) long with a longest span of 22 ft (6.7 m) and a deck 67 ft wide.
Who owns Alder Street over Parker Horn?
It is owned by the City or Municipal Highway Agency.