US Bridges

Henry Creek RD over Henry Creek

FairPosted for load

Clackamas County, Oregon · 00.36 MI N of HWY 26 · Structure no. 06397 000 035

Built
1959
66 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
41
2020 count
Owner
County
County Highway Agency

About this bridge

Henry Creek RD over Henry Creek is a concrete channel beam carrying Henry Creek RD over Henry Creek in Clackamas County, Oregon. It was built in 1959, so it is 66 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 5 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 other load-capacity restriction.

It carries about 41 vehicles a day, roughly 9% of them trucks, projected to reach 44 by 2025. The structure is 24 ft (7.3 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHenry Creek RD
CrossesHenry Creek
Location00.36 MI N of HWY 26
RouteCounty Highway C1308
StateOregon
Coordinates45.3298, -121.9045
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width19 ft (5.8 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2020)
Projected traffic44 by 2025
Trucks9%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$123,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Henry Creek RD over Henry Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Henry Creek RD over Henry 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 July 2024.

How much traffic does Henry Creek RD over Henry Creek carry?

About 41 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Henry Creek RD over Henry Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 19 ft wide.

Who owns Henry Creek RD over Henry Creek?

It is owned by the County Highway Agency.