US Bridges

Birch Creek Road over Drainage Ditch

GoodPosted for load

Umatilla County, Oregon · 0.8 MI W of Spofford Road · Structure no. 59C456 550 0500

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
562
2020 count
Owner
County
County Highway Agency

About this bridge

Birch Creek Road over Drainage Ditch is a steel stringer/multi-beam or girder carrying Birch Creek Road over Drainage Ditch in Umatilla County, Oregon. It was built in 1992, so it is 33 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. Its operating status is: posted for load restriction.

It carries about 562 vehicles a day, roughly 10% of them trucks, projected to reach 597 by 2025. The structure is 33 ft (10.2 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBirch Creek Road
CrossesDrainage Ditch
Location0.8 MI W of Spofford Road
RouteCounty Highway 0
StateOregon
Coordinates45.97667, -118.35292
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating18.5 US tons
Inventory rating14.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span32 ft (9.8 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
Trucks10%
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 Drainage Ditch built?

It was built in 1992, making it 33 years old in 2025.

What condition is Birch Creek Road over Drainage Ditch 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 Drainage Ditch carry?

About 562 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Birch Creek Road over Drainage Ditch?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Birch Creek Road over Drainage Ditch?

It is owned by the County Highway Agency.