US Bridges

Wichita Avenue over Johnson Creek

Fair

Clackamas County, Oregon · 00.6 MI N of King RD · Structure no. 06034 000

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
529
2020 count
Owner
County
County Highway Agency

About this bridge

Wichita Avenue over Johnson Creek is a steel stringer/multi-beam or girder carrying Wichita Avenue over Johnson Creek in Clackamas County, Oregon. It was built in 1960, so it is 65 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.

It carries about 529 vehicles a day, roughly 11% of them trucks, projected to reach 584 by 2025. The structure is 35 ft (10.7 m) long and 21 ft wide.

Location

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CarriesWichita Avenue
CrossesJohnson Creek
Location00.6 MI N of King RD
RouteCounty Highway C0668
CountyClackamas County
StateOregon
Coordinates45.45582, -122.6008
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic529 (2020)
Projected traffic584 by 2025
Trucks11%
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$179,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wichita Avenue over Johnson Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Wichita Avenue 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 May 2023.

How much traffic does Wichita Avenue over Johnson Creek carry?

About 529 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Wichita Avenue over Johnson Creek?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 21 ft wide.

Who owns Wichita Avenue over Johnson Creek?

It is owned by the County Highway Agency.