US Bridges

Boones Ferry Road over I-5 (hwy 1)

Fair

Clackamas County, Oregon · 022 MI N Marion-Clackamas · Structure no. 07624A001 28259

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
326 ft
2 main spans
Daily traffic
127,233
2022 count
Owner
State
State Highway Agency

About this bridge

Boones Ferry Road over I-5 (hwy 1) is a prestressed concrete continuous box beam or girders - multiple carrying Boones Ferry Road over I-5 (hwy 1) in Clackamas County, Oregon. It was built in 1971, so it is 54 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 127,233 vehicles a day, roughly 13% of them trucks, projected to reach 155,000 by 2042. The structure is 326 ft (99.4 m) long and 51 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesBoones Ferry Road
CrossesI-5 (hwy 1)
Location022 MI N Marion-Clackamas
RouteCounty Highway 0
CountyClackamas County
StateOregon
Coordinates45.28429, -122.7694
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length326 ft (99.4 m)
Longest span141 ft (43 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127,233 (2022)
Projected traffic155,000 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed12.4 mi (20 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 Boones Ferry Road over I-5 (hwy 1) built?

It was built in 1971, making it 54 years old in 2025.

What condition is Boones Ferry Road over I-5 (hwy 1) 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 2024.

How much traffic does Boones Ferry Road over I-5 (hwy 1) carry?

About 127,233 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Boones Ferry Road over I-5 (hwy 1)?

The structure is 326 ft (99.4 m) long with a longest span of 141 ft (43 m) and a deck 51 ft wide.

Who owns Boones Ferry Road over I-5 (hwy 1)?

It is owned by the State Highway Agency.