US Bridges

US 20 (hwy 16) over Mt. States Power Canal

Fair

Linn County, Oregon · 006 MI NW Lebanon · Structure no. 01162A016 01189

Built
1950
75 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
10,847
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 16) over Mt. States Power Canal is a concrete continuous stringer/multi-beam or girder carrying US 20 (hwy 16) over Mt. States Power Canal in Linn County, Oregon. It was built in 1950, so it is 75 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 10,847 vehicles a day, roughly 11% of them trucks, projected to reach 13,600 by 2042. The structure is 93 ft (28.3 m) long and 35 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesUS 20 (hwy 16)
CrossesMt. States Power Canal
Location006 MI NW Lebanon
RouteU.S. Route 20
CountyLinn County
StateOregon
Coordinates44.5586, -122.91169
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width35 ft (10.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,847 (2022)
Projected traffic13,600 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed12.4 mi (20 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$476,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 (hwy 16) over Mt. States Power Canal built?

It was built in 1950, making it 75 years old in 2025.

What condition is US 20 (hwy 16) over Mt. States Power Canal 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 February 2024.

How much traffic does US 20 (hwy 16) over Mt. States Power Canal carry?

About 10,847 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US 20 (hwy 16) over Mt. States Power Canal?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 35 ft wide.

Who owns US 20 (hwy 16) over Mt. States Power Canal?

It is owned by the State Highway Agency.