US Bridges

SE Luther RD over Johnson Creek

FairPosted for load

Clackamas County, Oregon · .2MI East of 82nd Street · Structure no. 06591D000

Built
1938
87 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
60 ft
3 main spans
Daily traffic
3,502
2020 count
Owner
County
County Highway Agency

About this bridge

SE Luther RD over Johnson Creek is a steel continuous stringer/multi-beam or girder carrying SE Luther RD over Johnson Creek in Clackamas County, Oregon. It was built in 1938, so it is 87 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 3,502 vehicles a day, roughly 4% of them trucks, projected to reach 3,552 by 2025. The structure is 60 ft (18.3 m) long and 29 ft wide.

CarriesSE Luther RD
CrossesJohnson Creek
Location.2MI East of 82nd Street
RouteCounty Highway C0649
StateOregon
Coordinates45.46114, -122.58397
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span26 ft (7.9 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,502 (2020)
Projected traffic3,552 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$307,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SE Luther RD over Johnson Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is SE Luther RD over Johnson Creek 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 2024.

How much traffic does SE Luther RD over Johnson Creek carry?

About 3,502 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SE Luther RD over Johnson Creek?

The structure is 60 ft (18.3 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.

Who owns SE Luther RD over Johnson Creek?

It is owned by the County Highway Agency.