Monument Hill Road over Irrigation Canal
GoodGrant County, Washington · P NW 0.6 North of 12 NW · Structure no. 086340000000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected January 2023
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 38 ft
- 1 main span
- Daily traffic
- 298
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Monument Hill Road over Irrigation Canal is a prestressed concrete channel beam carrying Monument Hill Road over Irrigation Canal in Grant County, Washington. It was built in 1996, so it is 29 years old, younger than the Washington average of 49.8 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 298 vehicles a day, roughly 21% of them trucks, projected to reach 450 by 2042. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Monument Hill Road over Irrigation Canal built?
It was built in 1996, making it 29 years old in 2025.
What condition is Monument Hill Road over Irrigation 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 January 2023.
How much traffic does Monument Hill Road over Irrigation Canal carry?
About 298 vehicles per day (2020 count), of which roughly 21% are trucks.
How long is Monument Hill Road over Irrigation Canal?
The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 35 ft wide.
Who owns Monument Hill Road over Irrigation Canal?
It is owned by the County Highway Agency.