US Bridges

Or 22 (hwy 162) over Little N. Fk. Santiam R.

Fair

Marion County, Oregon · 070 MI W Mill City · Structure no. 07347 162 02328

Built
1952
73 years old, rebuilt 1990
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
387 ft
1 main span
Daily traffic
8,303
2022 count
Owner
State
State Highway Agency

About this bridge

Or 22 (hwy 162) over Little N. Fk. Santiam R. is a concrete arch - deck carrying Or 22 (hwy 162) over Little N. Fk. Santiam R. in Marion County, Oregon. It was built in 1952 and reconstructed in 1990, so it is 73 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.

It carries about 8,303 vehicles a day, roughly 17% of them trucks, projected to reach 9,600 by 2042. The structure is 387 ft (118.1 m) long and 62 ft wide. If it were closed, the detour would be 46.6 mi (75 km).

Location

Open in Google Maps
CarriesOr 22 (hwy 162)
CrossesLittle N. Fk. Santiam R.
Location070 MI W Mill City
RouteState Highway 22
CountyMarion County
StateOregon
Coordinates44.79045, -122.60093
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.1 US tons
Inventory rating16.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20
Structure length387 ft (118.1 m)
Longest span207 ft (63.2 m)
Deck width62 ft (18.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,303 (2022)
Projected traffic9,600 by 2042
Trucks17%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed46.6 mi (75 km)
TollOn a free road
National Highway SystemYes

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 162) over Little N. Fk. Santiam R. built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1990.

What condition is Or 22 (hwy 162) over Little N. Fk. Santiam R. 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 August 2023.

How much traffic does Or 22 (hwy 162) over Little N. Fk. Santiam R. carry?

About 8,303 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Or 22 (hwy 162) over Little N. Fk. Santiam R.?

The structure is 387 ft (118.1 m) long with a longest span of 207 ft (63.2 m) and a deck 62 ft wide.

Who owns Or 22 (hwy 162) over Little N. Fk. Santiam R.?

It is owned by the State Highway Agency.