US Bridges

Swegle RD over Walla Walla River

Good

Walla Walla County, Washington · 00.224N Stovall RD · Structure no. 086128000000000

Built
1995
30 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
199 ft
1 main span
Daily traffic
54
2020 count
Owner
County
County Highway Agency

About this bridge

Swegle RD over Walla Walla River is a concrete continuous tee beam carrying Swegle RD over Walla Walla River in Walla Walla County, Washington. It was built in 1995, so it is 30 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 54 vehicles a day, roughly 10% of them trucks, projected to reach 98 by 2040. The structure is 199 ft (60.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSwegle RD
CrossesWalla Walla River
Location00.224N Stovall RD
RouteCounty Highway 21670
Coordinates46.03714, -118.4715
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length199 ft (60.8 m)
Longest span140 ft (42.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2020)
Projected traffic98 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$7.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Swegle RD over Walla Walla River built?

It was built in 1995, making it 30 years old in 2025.

What condition is Swegle RD over Walla Walla River 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 Swegle RD over Walla Walla River carry?

About 54 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Swegle RD over Walla Walla River?

The structure is 199 ft (60.8 m) long with a longest span of 140 ft (42.8 m) and a deck 35 ft wide.

Who owns Swegle RD over Walla Walla River?

It is owned by the County Highway Agency.