US Bridges

Purkerson Road over A-2 Channel Scs

FairPosted for load

Lane County, Oregon · 045 MI SW Junction City · Structure no. 39C358360900197

Built
1970
55 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
77 ft
2 main spans
Daily traffic
181
2020 count
Owner
County
County Highway Agency

About this bridge

Purkerson Road over A-2 Channel Scs is a prestressed concrete slab carrying Purkerson Road over A-2 Channel Scs in Lane County, Oregon. It was built in 1970, so it is 55 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. Its operating status is: posted for other load-capacity restriction.

It carries about 181 vehicles a day, roughly 3% of them trucks, projected to reach 206 by 2025. The structure is 77 ft (23.5 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesPurkerson Road
CrossesA-2 Channel Scs
Location045 MI SW Junction City
RouteCounty Highway C3609
StateOregon
Coordinates44.16597, -123.23049
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic181 (2020)
Projected traffic206 by 2025
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Purkerson Road over A-2 Channel Scs built?

It was built in 1970, making it 55 years old in 2025.

What condition is Purkerson Road over A-2 Channel Scs 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 Purkerson Road over A-2 Channel Scs carry?

About 181 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Purkerson Road over A-2 Channel Scs?

The structure is 77 ft (23.5 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Purkerson Road over A-2 Channel Scs?

It is owned by the County Highway Agency.