US Bridges

North Shore Drive over Lakewood Bay

Good

Clackamas County, Oregon · 005 MI West of HWY 43 · Structure no. 05C01A000000000

Built
1929
96 years old, rebuilt 1983
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
2,952
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Shore Drive over Lakewood Bay is a prestressed concrete slab carrying North Shore Drive over Lakewood Bay in Clackamas County, Oregon. It was built in 1929 and reconstructed in 1983, so it is 96 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,952 vehicles a day, roughly 10% of them trucks, projected to reach 3,256 by 2025. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth Shore Drive
CrossesLakewood Bay
Location005 MI West of HWY 43
RouteCity Street C0000
StateOregon
Coordinates45.41484, -122.6716
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width27 ft (8.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,952 (2020)
Projected traffic3,256 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$138,000
NavigationNo navigation control on waterway

Frequently asked questions

When was North Shore Drive over Lakewood Bay built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1983.

What condition is North Shore Drive over Lakewood Bay in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does North Shore Drive over Lakewood Bay carry?

About 2,952 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is North Shore Drive over Lakewood Bay?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 27 ft wide.

Who owns North Shore Drive over Lakewood Bay?

It is owned by the City or Municipal Highway Agency.