US Bridges

US 30 by (hwy 123) over Private Driveway

Fair

Multnomah County, Oregon · 6.0 MI NW Portland Cc · Structure no. 06498 123 00027

Built
1931
94 years old
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel
Length
210 ft
5 main spans
Daily traffic
14,210
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 by (hwy 123) over Private Driveway is a steel girder and floorbeam system carrying US 30 by (hwy 123) over Private Driveway in Multnomah County, Oregon. It was built in 1931, so it is 94 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 14,210 vehicles a day, roughly 7% of them trucks, projected to reach 18,800 by 2042. The structure is 210 ft (64 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 30 by (hwy 123)
CrossesPrivate Driveway
Location6.0 MI NW Portland Cc
RouteU.S. Route 30
CountyMultnomah County
StateOregon
Coordinates45.58454, -122.77071
Functional classUrban Minor Arterial

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.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length210 ft (64 m)
Longest span90 ft (27.4 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,210 (2022)
Projected traffic18,800 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 by (hwy 123) over Private Driveway built?

It was built in 1931, making it 94 years old in 2025.

What condition is US 30 by (hwy 123) over Private Driveway 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 September 2023.

How much traffic does US 30 by (hwy 123) over Private Driveway carry?

About 14,210 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is US 30 by (hwy 123) over Private Driveway?

The structure is 210 ft (64 m) long with a longest span of 90 ft (27.4 m) and a deck 40 ft wide.

Who owns US 30 by (hwy 123) over Private Driveway?

It is owned by the State Highway Agency.