US Bridges

SR 410 over Little Naches River

Good

Yakima County, Washington · 22.8 E Pierce CO · Structure no. 0011866A0000000

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
171 ft
3 main spans
Daily traffic
881
2023 count
Owner
State
State Highway Agency

About this bridge

SR 410 over Little Naches River is a steel continuous stringer/multi-beam or girder carrying SR 410 over Little Naches River in Yakima County, Washington. It was built in 1980, so it is 45 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 881 vehicles a day, roughly 5% of them trucks, projected to reach 1,086 by 2039. The structure is 171 ft (52.1 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR 410
CrossesLittle Naches River
Location22.8 E Pierce CO
RouteState Highway 410
Coordinates46.98873, -121.09774
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length171 ft (52.1 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic881 (2023)
Projected traffic1,086 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 410 over Little Naches River built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 410 over Little 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 2024.

How much traffic does SR 410 over Little Naches River carry?

About 881 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 410 over Little Naches River?

The structure is 171 ft (52.1 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns SR 410 over Little Naches River?

It is owned by the State Highway Agency.