US Bridges

Greenville RD over Winnett Canyon

Good

Walla Walla County, Washington · 01.16N SR 124 · Structure no. 084609000000000

Built
1986
39 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
70 ft
1 main span
Daily traffic
40
2021 count
Owner
County
County Highway Agency

About this bridge

Greenville RD over Winnett Canyon is a concrete stringer/multi-beam or girder carrying Greenville RD over Winnett Canyon in Walla Walla County, Washington. It was built in 1986, so it is 39 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 40 vehicles a day, roughly 8% of them trucks, projected to reach 45 by 2043. The structure is 70 ft (21.3 m) long and 35 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesGreenville RD
CrossesWinnett Canyon
Location01.16N SR 124
RouteCounty Highway 42470
Coordinates46.30578, -118.54456
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating30.3 US tons

Structure

MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span69 ft (21 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2021)
Projected traffic45 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Greenville RD over Winnett Canyon built?

It was built in 1986, making it 39 years old in 2025.

What condition is Greenville RD over Winnett Canyon 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 September 2023.

How much traffic does Greenville RD over Winnett Canyon carry?

About 40 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Greenville RD over Winnett Canyon?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 35 ft wide.

Who owns Greenville RD over Winnett Canyon?

It is owned by the County Highway Agency.