US Bridges

Or 22 (hwy 32) over Alder Creek

FairPosted for load

Tillamook County, Oregon · 073 MI SE Hebo · Structure no. 04678 032 00732

Built
1935
90 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
1,194
2022 count
Owner
State
State Highway Agency

About this bridge

Or 22 (hwy 32) over Alder Creek is a concrete continuous slab carrying Or 22 (hwy 32) over Alder Creek in Tillamook County, Oregon. It was built in 1935, so it is 90 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 1,194 vehicles a day, roughly 19% of them trucks, projected to reach 1,300 by 2042. The structure is 44 ft (13.4 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOr 22 (hwy 32)
CrossesAlder Creek
Location073 MI SE Hebo
RouteState Highway 22
StateOregon
Coordinates45.14665, -123.79954
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length44 ft (13.4 m)
Longest span18 ft (5.5 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,194 (2022)
Projected traffic1,300 by 2042
Trucks19%
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

OwnerState Highway Agency
Maintained byState 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 Or 22 (hwy 32) over Alder Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Or 22 (hwy 32) over Alder 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 March 2024.

How much traffic does Or 22 (hwy 32) over Alder Creek carry?

About 1,194 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Or 22 (hwy 32) over Alder Creek?

The structure is 44 ft (13.4 m) long with a longest span of 18 ft (5.5 m) and a deck 27 ft wide.

Who owns Or 22 (hwy 32) over Alder Creek?

It is owned by the State Highway Agency.