US Bridges

Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR

FairPosted for load

Multnomah County, Oregon · NE End of Steel Bridge · Structure no. 06683D01WX00044

Built
1952
73 years old, rebuilt 1985
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
318 ft
6 main spans
Daily traffic
8,742
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR is a concrete continuous tee beam carrying Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR in Multnomah County, Oregon. It was built in 1952 and reconstructed in 1985, so it is 73 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 load restriction.

It carries about 8,742 vehicles a day, roughly 7% of them trucks, projected to reach 12,448 by 2025. The structure is 318 ft (96.9 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOr 99W/HOLLADAY Rp
CrossesB-146 Steel Br Rp X UPRR
LocationNE End of Steel Bridge
RouteCity Street 99
CountyMultnomah County
StateOregon
Coordinates45.5288, -122.66714
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating11 US tons
Inventory rating8.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length318 ft (96.9 m)
Longest span101 ft (30.8 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,742 (2020)
Projected traffic12,448 by 2025
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1985.

What condition is Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR 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 June 2023.

How much traffic does Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR carry?

About 8,742 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR?

The structure is 318 ft (96.9 m) long with a longest span of 101 ft (30.8 m) and a deck 40 ft wide.

Who owns Or 99W/HOLLADAY Rp over B-146 Steel Br Rp X UPRR?

It is owned by the City or Municipal Highway Agency.