US Bridges

West Side Road over Panther Creek

Fair

Yamhill County, Oregon · 021 MI N Mcminnville · Structure no. 11641A021 00778

Built
1958
67 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
6,338
2020 count
Owner
County
County Highway Agency

About this bridge

West Side Road over Panther Creek is a concrete continuous stringer/multi-beam or girder carrying West Side Road over Panther Creek in Yamhill County, Oregon. It was built in 1958, so it is 67 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 6,338 vehicles a day, roughly 15% of them trucks, projected to reach 7,088 by 2025. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWest Side Road
CrossesPanther Creek
Location021 MI N Mcminnville
RouteCounty Highway A0708
CountyYamhill County
StateOregon
Coordinates45.25342, -123.20151
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,338 (2020)
Projected traffic7,088 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$625,000
NavigationNo navigation control on waterway

Frequently asked questions

When was West Side Road over Panther Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is West Side Road over Panther 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 West Side Road over Panther Creek carry?

About 6,338 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is West Side Road over Panther Creek?

The structure is 122 ft (37.2 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns West Side Road over Panther Creek?

It is owned by the County Highway Agency.