US Bridges

Conn 7(MONTGOMERY) over HWY 61

Fair

Multnomah County, Oregon · Sunset Interchange · Structure no. 09254F061C00152

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
121 ft
2 main spans
Daily traffic
1,222
2022 count
Owner
State
State Highway Agency

About this bridge

Conn 7(MONTGOMERY) over HWY 61 is a concrete continuous box beam or girders - multiple carrying Conn 7(MONTGOMERY) over HWY 61 in Multnomah County, Oregon. It was built in 1967, so it is 58 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 5 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 1,222 vehicles a day, roughly 6% of them trucks, projected to reach 2,000 by 2030. The structure is 121 ft (36.8 m) long and 55 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesConn 7(MONTGOMERY)
CrossesHWY 61
LocationSunset Interchange
RouteState Highway 405
StateOregon
Coordinates45.51361, -122.68946
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 rating39.2 US tons
Inventory rating30.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length121 ft (36.8 m)
Longest span63 ft (19.1 m)
Deck width55 ft (16.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,222 (2022)
Projected traffic2,000 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed4.3 mi (7 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 Conn 7(MONTGOMERY) over HWY 61 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Conn 7(MONTGOMERY) over HWY 61 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 July 2023.

How much traffic does Conn 7(MONTGOMERY) over HWY 61 carry?

About 1,222 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Conn 7(MONTGOMERY) over HWY 61?

The structure is 121 ft (36.8 m) long with a longest span of 63 ft (19.1 m) and a deck 55 ft wide.

Who owns Conn 7(MONTGOMERY) over HWY 61?

It is owned by the State Highway Agency.