US Bridges

SW 192nd Avenue over Butternut Creek

Fair

Washington County, Oregon · 003 MI N Rosa Road · Structure no. 671239099100030

Built
1974
51 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
2 main spans
Daily traffic
1,274
2020 count
Owner
County
County Highway Agency

About this bridge

SW 192nd Avenue over Butternut Creek is a wood or timber stringer/multi-beam or girder carrying SW 192nd Avenue over Butternut Creek in Washington County, Oregon. It was built in 1974, so it is 51 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 5 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 1,274 vehicles a day, roughly 5% of them trucks, projected to reach 1,405 by 2025. The structure is 26 ft (7.9 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesSW 192nd Avenue
CrossesButternut Creek
Location003 MI N Rosa Road
RouteCounty Highway C0755
CountyWashington County
StateOregon
Coordinates45.48371, -122.87502
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,274 (2020)
Projected traffic1,405 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$133,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 192nd Avenue over Butternut Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is SW 192nd Avenue over Butternut 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 September 2023.

How much traffic does SW 192nd Avenue over Butternut Creek carry?

About 1,274 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is SW 192nd Avenue over Butternut Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns SW 192nd Avenue over Butternut Creek?

It is owned by the County Highway Agency.