US Bridges

Birch Creek Road over Dry Creek

Good

Umatilla County, Oregon · 0.2 MI E of Spofford Road · Structure no. 59C446055000291

Built
1988
37 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
562
2020 count
Owner
County
County Highway Agency

About this bridge

Birch Creek Road over Dry Creek is a prestressed concrete slab carrying Birch Creek Road over Dry Creek in Umatilla County, Oregon. It was built in 1988, so it is 37 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 562 vehicles a day, roughly 20% of them trucks, projected to reach 597 by 2025. The structure is 37 ft (11.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBirch Creek Road
CrossesDry Creek
Location0.2 MI E of Spofford Road
RouteCounty Highway 0
StateOregon
Coordinates45.97666, -118.33159
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic562 (2020)
Projected traffic597 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Birch Creek Road over Dry Creek built?

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

What condition is Birch Creek Road over Dry 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 2023.

How much traffic does Birch Creek Road over Dry Creek carry?

About 562 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Birch Creek Road over Dry Creek?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 28 ft wide.

Who owns Birch Creek Road over Dry Creek?

It is owned by the County Highway Agency.