US Bridges

Terrace Hts Drive over Yakima River

Fair

Yakima County, Washington · 0.18 W Butterfield · Structure no. 082730000000000

Built
1979
46 years old
Condition
Fair
inspected November 2022
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
620 ft
3 main spans
Daily traffic
22,500
2020 count
Owner
County
County Highway Agency

About this bridge

Terrace Hts Drive over Yakima River is a concrete continuous box beam or girders - multiple carrying Terrace Hts Drive over Yakima River in Yakima County, Washington. It was built in 1979, so it is 46 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 22,500 vehicles a day, roughly 5% of them trucks, projected to reach 25,000 by 2040. The structure is 620 ft (189 m) long and 75 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTerrace Hts Drive
CrossesYakima River
Location0.18 W Butterfield
RouteCounty Highway 40500
Coordinates46.605, -120.475
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length620 ft (189 m)
Longest span290 ft (88.4 m)
Deck width75 ft (23 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2020)
Projected traffic25,000 by 2040
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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$37.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Terrace Hts Drive over Yakima River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Terrace Hts Drive over Yakima River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2022.

How much traffic does Terrace Hts Drive over Yakima River carry?

About 22,500 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Terrace Hts Drive over Yakima River?

The structure is 620 ft (189 m) long with a longest span of 290 ft (88.4 m) and a deck 75 ft wide.

Who owns Terrace Hts Drive over Yakima River?

It is owned by the County Highway Agency.