US Bridges

Wyland Road over Rock Creek

FairPosted for load

Clackamas County, Oregon · 0001 MI W of Wilhoit Road · Structure no. 05C02 000 001

Built
1960
65 years old, rebuilt 1978
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
47
2020 count
Owner
County
County Highway Agency

About this bridge

Wyland Road over Rock Creek is a steel stringer/multi-beam or girder carrying Wyland Road over Rock Creek in Clackamas County, Oregon. It was built in 1960 and reconstructed in 1978, so it is 65 years old, older than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.

It carries about 47 vehicles a day, projected to reach 52 by 2025. The structure is 38 ft (11.6 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesWyland Road
CrossesRock Creek
Location0001 MI W of Wilhoit Road
RouteCounty Highway C0265
CountyClackamas County
StateOregon
Coordinates45.07044, -122.59579
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating9.3 US tons
Inventory rating7.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2020)
Projected traffic52 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Wyland Road over Rock Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1978.

What condition is Wyland Road over Rock Creek 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 September 2024.

How much traffic does Wyland Road over Rock Creek carry?

About 47 vehicles per day (2020 count).

How long is Wyland Road over Rock Creek?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 14 ft wide.

Who owns Wyland Road over Rock Creek?

It is owned by the County Highway Agency.