US Bridges

Ankeny Hill Road over HWY 1 (I-5)

FairPosted for load

Marion County, Oregon · 093 MI N of Albany · Structure no. 08114 001C24354

Built
1958
67 years old, rebuilt 1990
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
277 ft
5 main spans
Daily traffic
66,672
2022 count
Owner
State
State Highway Agency

About this bridge

Ankeny Hill Road over HWY 1 (I-5) is a concrete continuous tee beam carrying Ankeny Hill Road over HWY 1 (I-5) in Marion County, Oregon. It was built in 1958 and reconstructed in 1990, so it is 67 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 other load-capacity restriction.

It carries about 66,672 vehicles a day, roughly 15% of them trucks, projected to reach 71,500 by 2042. The structure is 277 ft (84.4 m) long and 31 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesAnkeny Hill Road
CrossesHWY 1 (I-5)
Location093 MI N of Albany
RouteCounty Highway 0
CountyMarion County
StateOregon
Coordinates44.77755, -123.04135
Functional classRural Major Collector

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.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating17.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length277 ft (84.4 m)
Longest span59 ft (18 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,672 (2022)
Projected traffic71,500 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.3 mi (23 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ankeny Hill Road over HWY 1 (I-5) built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1990.

What condition is Ankeny Hill Road over HWY 1 (I-5) 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 December 2023.

How much traffic does Ankeny Hill Road over HWY 1 (I-5) carry?

About 66,672 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Ankeny Hill Road over HWY 1 (I-5)?

The structure is 277 ft (84.4 m) long with a longest span of 59 ft (18 m) and a deck 31 ft wide.

Who owns Ankeny Hill Road over HWY 1 (I-5)?

It is owned by the State Highway Agency.