US Bridges

SE 142nd Ave over B-51 over Johnson Creek

Fair

Multnomah County, Oregon · S of SE Foster Road · Structure no. 25B51 000

Built
1973
52 years old, rebuilt 1979
Condition
Fair
inspected July 2024
Type
Channel Beam
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
192
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

SE 142nd Ave over B-51 over Johnson Creek is a prestressed concrete channel beam carrying SE 142nd Ave over B-51 over Johnson Creek in Multnomah County, Oregon. It was built in 1973 and reconstructed in 1979, so it is 52 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 192 vehicles a day, roughly 1% of them trucks, projected to reach 206 by 2025. The structure is 44 ft (13.4 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSE 142nd Ave
CrossesB-51 over Johnson Creek
LocationS of SE Foster Road
RouteCity Street C0000
CountyMultnomah County
StateOregon
Coordinates45.47426, -122.51714
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192 (2020)
Projected traffic206 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$236,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SE 142nd Ave over B-51 over Johnson Creek built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1979.

What condition is SE 142nd Ave over B-51 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 142nd Ave over B-51 over Johnson Creek carry?

About 192 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is SE 142nd Ave over B-51 over Johnson Creek?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 18 ft wide.

Who owns SE 142nd Ave over B-51 over Johnson Creek?

It is owned by the City or Municipal Highway Agency.