US Bridges

White Trail over Lat 39.9 Blk 75

Good

Grant County, Washington · 5 NW @ R NW · Structure no. 086062000000000

Built
1994
31 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
5,333
2019 count
Owner
County
County Highway Agency

About this bridge

White Trail over Lat 39.9 Blk 75 is a prestressed concrete stringer/multi-beam or girder carrying White Trail over Lat 39.9 Blk 75 in Grant County, Washington. It was built in 1994, so it is 31 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 5,333 vehicles a day, roughly 22% of them trucks, projected to reach 6,500 by 2041. The structure is 49 ft (14.9 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesWhite Trail
CrossesLat 39.9 Blk 75
Location5 NW @ R NW
RouteCounty Highway 93010
Coordinates47.16129, -119.87492
Functional classRural Major 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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating22.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width34 ft (10.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,333 (2019)
Projected traffic6,500 by 2041
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was White Trail over Lat 39.9 Blk 75 built?

It was built in 1994, making it 31 years old in 2025.

What condition is White Trail over Lat 39.9 Blk 75 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 December 2023.

How much traffic does White Trail over Lat 39.9 Blk 75 carry?

About 5,333 vehicles per day (2019 count), of which roughly 22% are trucks.

How long is White Trail over Lat 39.9 Blk 75?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 34 ft wide.

Who owns White Trail over Lat 39.9 Blk 75?

It is owned by the County Highway Agency.