US Bridges

SE Circle Ave No 1 over Johnson Creek

FairPosted for load

Multnomah County, Oregon · 001 W of Jenne Road · Structure no. 51C15 125400001

Built
1954
71 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
54
2020 count
Owner
County
County Highway Agency

About this bridge

SE Circle Ave No 1 over Johnson Creek is a steel stringer/multi-beam or girder carrying SE Circle Ave No 1 over Johnson Creek in Multnomah County, Oregon. It was built in 1954, so it is 71 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 54 vehicles a day, projected to reach 60 by 2025. The structure is 51 ft (15.5 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSE Circle Ave No 1
CrossesJohnson Creek
Location001 W of Jenne Road
RouteCounty Highway C1254
CountyMultnomah County
StateOregon
Coordinates45.4863, -122.48775
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2020)
Projected traffic60 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SE Circle Ave No 1 over Johnson Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is SE Circle Ave No 1 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 Circle Ave No 1 over Johnson Creek carry?

About 54 vehicles per day (2020 count).

How long is SE Circle Ave No 1 over Johnson Creek?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 30 ft wide.

Who owns SE Circle Ave No 1 over Johnson Creek?

It is owned by the County Highway Agency.