US Bridges

SR 823 over Naches River

Good

Yakima County, Washington · 0.3 N JCT US 12 · Structure no. 0015137D0000000

Built
1999
26 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
291 ft
2 main spans
Daily traffic
5,356
2023 count
Owner
State
State Highway Agency

About this bridge

SR 823 over Naches River is a steel continuous stringer/multi-beam or girder carrying SR 823 over Naches River in Yakima County, Washington. It was built in 1999, so it is 26 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 5,356 vehicles a day, roughly 3% of them trucks, projected to reach 9,181 by 2039. The structure is 291 ft (88.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 823
CrossesNaches River
Location0.3 N JCT US 12
RouteState Highway 823
Coordinates46.62995, -120.51508
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length291 ft (88.7 m)
Longest span176 ft (53.6 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,356 (2023)
Projected traffic9,181 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 823 over Naches River built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR 823 over Naches 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 June 2023.

How much traffic does SR 823 over Naches River carry?

About 5,356 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR 823 over Naches River?

The structure is 291 ft (88.7 m) long with a longest span of 176 ft (53.6 m) and a deck 41 ft wide.

Who owns SR 823 over Naches River?

It is owned by the State Highway Agency.