US Bridges

West Shore Drive over Scoggins Creek

Fair

Washington County, Oregon · 0080 MI W Scoggin Valley · Structure no. 671401000000000

Built
1974
51 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
227 ft
3 main spans
Daily traffic
382
2020 count
Owner
County
County Highway Agency

About this bridge

West Shore Drive over Scoggins Creek is a prestressed concrete stringer/multi-beam or girder carrying West Shore Drive over Scoggins 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 382 vehicles a day, roughly 5% of them trucks, projected to reach 432 by 2025. The structure is 227 ft (69.2 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWest Shore Drive
CrossesScoggins Creek
Location0080 MI W Scoggin Valley
RouteCounty Highway A0680
CountyWashington County
StateOregon
Coordinates45.4992, -123.24906
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
Deck8 Very GoodNo problems noted.
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length227 ft (69.2 m)
Longest span75 ft (22.9 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic382 (2020)
Projected traffic432 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was West Shore Drive over Scoggins Creek built?

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

What condition is West Shore Drive over Scoggins 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 2024.

How much traffic does West Shore Drive over Scoggins Creek carry?

About 382 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is West Shore Drive over Scoggins Creek?

The structure is 227 ft (69.2 m) long with a longest span of 75 ft (22.9 m) and a deck 32 ft wide.

Who owns West Shore Drive over Scoggins Creek?

It is owned by the County Highway Agency.