US Bridges

9 NW over Irrigation Lateral

Good

Grant County, Washington · .2 E of E NW · Structure no. 089507000000000

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

9 NW over Irrigation Lateral is a concrete slab carrying 9 NW over Irrigation Lateral in Grant County, Washington. It was built in 2024, so it is 1 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 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 200 vehicles a day, projected to reach 349 by 2044. The structure is 27 ft (8.1 m) long and 38 ft wide.

Carries9 NW
CrossesIrrigation Lateral
Location.2 E of E NW
RouteCounty Highway 0
Coordinates47.22114, -119.59353
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length27 ft (8.1 m)
Longest span27 ft (8.1 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic349 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 9 NW over Irrigation Lateral built?

It was built in 2024, making it 1 years old in 2025.

What condition is 9 NW over Irrigation Lateral 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 June 2024.

How much traffic does 9 NW over Irrigation Lateral carry?

About 200 vehicles per day (2024 count).

How long is 9 NW over Irrigation Lateral?

The structure is 27 ft (8.1 m) long with a longest span of 27 ft (8.1 m) and a deck 38 ft wide.

Who owns 9 NW over Irrigation Lateral?

It is owned by the County Highway Agency.