US Bridges

C-564 Huckleberry over Powder River

Good

Baker County, Oregon · 0.2 MI S JCT Ore 220 · Structure no. 16798 C52100023

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
94
2020 count
Owner
County
County Highway Agency

About this bridge

C-564 Huckleberry over Powder River is a prestressed concrete slab carrying C-564 Huckleberry over Powder River in Baker County, Oregon. It was built in 1985, so it is 40 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 94 vehicles a day, projected to reach 108 by 2025. The structure is 42 ft (12.8 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesC-564 Huckleberry
CrossesPowder River
Location0.2 MI S JCT Ore 220
RouteCounty Highway CO521
StateOregon
Coordinates44.71951, -118.18059
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94 (2020)
Projected traffic108 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C-564 Huckleberry over Powder River built?

It was built in 1985, making it 40 years old in 2025.

What condition is C-564 Huckleberry over Powder 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 October 2024.

How much traffic does C-564 Huckleberry over Powder River carry?

About 94 vehicles per day (2020 count).

How long is C-564 Huckleberry over Powder River?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.

Who owns C-564 Huckleberry over Powder River?

It is owned by the County Highway Agency.