US Bridges

Or 47 (hwy 102) over Beaver Creek

Fair

Washington County, Oregon · 7.0 MI S Vernonia · Structure no. 01760 102 07051

Built
1932
93 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
48 ft
2 main spans
Daily traffic
2,642
2022 count
Owner
State
State Highway Agency

About this bridge

Or 47 (hwy 102) over Beaver Creek is a wood or timber stringer/multi-beam or girder carrying Or 47 (hwy 102) over Beaver Creek in Washington County, Oregon. It was built in 1932, so it is 93 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 2,642 vehicles a day, roughly 14% of them trucks, projected to reach 3,400 by 2042. The structure is 48 ft (14.6 m) long and 27 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

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CarriesOr 47 (hwy 102)
CrossesBeaver Creek
Location7.0 MI S Vernonia
RouteState Highway 47
CountyWashington County
StateOregon
Coordinates45.76184, -123.20863
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length48 ft (14.6 m)
Longest span23 ft (7 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,642 (2022)
Projected traffic3,400 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$246,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 47 (hwy 102) over Beaver Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Or 47 (hwy 102) over Beaver 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 October 2024.

How much traffic does Or 47 (hwy 102) over Beaver Creek carry?

About 2,642 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Or 47 (hwy 102) over Beaver Creek?

The structure is 48 ft (14.6 m) long with a longest span of 23 ft (7 m) and a deck 27 ft wide.

Who owns Or 47 (hwy 102) over Beaver Creek?

It is owned by the State Highway Agency.