US Bridges

I-84 (hwy 002) over Fifteen Mile Creek

Good

Wasco County, Oregon · 023 MI E the Dalles · Structure no. 20875 002 08804

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
300 ft
2 main spans
Daily traffic
17,317
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 002) over Fifteen Mile Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I-84 (hwy 002) over Fifteen Mile Creek in Wasco County, Oregon. It was built in 2010, so it is 15 years old, younger than the Oregon average of 49.9 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 17,317 vehicles a day, roughly 29% of them trucks, projected to reach 19,300 by 2042. The structure is 300 ft (91.4 m) long and 88 ft wide.

CarriesI-84 (hwy 002)
CrossesFifteen Mile Creek
Location023 MI E the Dalles
RouteInterstate 84
StateOregon
Coordinates45.61176, -121.12257
Functional classRural Principal Arterial - Interstate

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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length300 ft (91.4 m)
Longest span150 ft (45.7 m)
Deck width88 ft (26.8 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,317 (2022)
Projected traffic19,300 by 2042
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-84 (hwy 002) over Fifteen Mile Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-84 (hwy 002) over Fifteen Mile 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 August 2024.

How much traffic does I-84 (hwy 002) over Fifteen Mile Creek carry?

About 17,317 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is I-84 (hwy 002) over Fifteen Mile Creek?

The structure is 300 ft (91.4 m) long with a longest span of 150 ft (45.7 m) and a deck 88 ft wide.

Who owns I-84 (hwy 002) over Fifteen Mile Creek?

It is owned by the State Highway Agency.