US Bridges

U.7 over Usbr Lateral

Good

Grant County, Washington · U.7 .2 N of SR 28 · Structure no. 080876000000000

Built
1954
71 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
1 main span
Daily traffic
278
2023 count
Owner
County
County Highway Agency

About this bridge

U.7 over Usbr Lateral is a wood or timber stringer/multi-beam or girder carrying U.7 over Usbr Lateral in Grant County, Washington. It was built in 1954, so it is 71 years old, older 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 278 vehicles a day, roughly 22% of them trucks, projected to reach 400 by 2045. The structure is 27 ft (8.2 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesU.7
CrossesUsbr Lateral
LocationU.7 .2 N of SR 28
RouteCounty Highway 32150
Coordinates47.23367, -119.95819
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating52 US tons
Inventory rating36 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic278 (2023)
Projected traffic400 by 2045
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
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 relocation of road
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was U.7 over Usbr Lateral built?

It was built in 1954, making it 71 years old in 2025.

What condition is U.7 over Usbr 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 February 2023.

How much traffic does U.7 over Usbr Lateral carry?

About 278 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is U.7 over Usbr Lateral?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns U.7 over Usbr Lateral?

It is owned by the County Highway Agency.