US Bridges

SR 410 over Union Creek

Good

Yakima County, Washington · 9.4 E Pierce CO · Structure no. 0013347A0000000

Built
1988
37 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
721
2023 count
Owner
State
State Highway Agency

About this bridge

SR 410 over Union Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 410 over Union Creek in Yakima County, Washington. It was built in 1988, so it is 37 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 721 vehicles a day, roughly 5% of them trucks, projected to reach 888 by 2039. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR 410
CrossesUnion Creek
Location9.4 E Pierce CO
RouteState Highway 410
Coordinates46.93333, -121.35833
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span87 ft (26.5 m)
Deck width35 ft (10.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic721 (2023)
Projected traffic888 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 410 over Union Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR 410 over Union Creek 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 July 2024.

How much traffic does SR 410 over Union Creek carry?

About 721 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 410 over Union Creek?

The structure is 90 ft (27.4 m) long with a longest span of 87 ft (26.5 m) and a deck 35 ft wide.

Who owns SR 410 over Union Creek?

It is owned by the State Highway Agency.