US Bridges

Sohm Road over East Lateral 85

Good

Franklin County, Washington · 0.02 East of Warehouse · Structure no. 086544000000000

Built
2000
25 years old
Condition
Good
inspected November 2022
Type
Slab
Concrete
Length
38 ft
1 main span
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Sohm Road over East Lateral 85 is a concrete slab carrying Sohm Road over East Lateral 85 in Franklin County, Washington. It was built in 2000, so it is 25 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 41 vehicles a day, roughly 53% of them trucks, projected to reach 61 by 2042. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSohm Road
CrossesEast Lateral 85
Location0.02 East of Warehouse
RouteCounty Highway 2220
Coordinates46.67813, -118.94163
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating52.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic61 by 2042
Trucks53%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sohm Road over East Lateral 85 built?

It was built in 2000, making it 25 years old in 2025.

What condition is Sohm Road over East Lateral 85 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 November 2022.

How much traffic does Sohm Road over East Lateral 85 carry?

About 41 vehicles per day (2022 count), of which roughly 53% are trucks.

How long is Sohm Road over East Lateral 85?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns Sohm Road over East Lateral 85?

It is owned by the County Highway Agency.