US Bridges

2-8 over Chewaucan River

Good

Lake County, Oregon · 1.1 West HWY 31 Paisley · Structure no. 37C05002-800108

Built
1972
53 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
137 ft
1 main span
Daily traffic
544
2020 count
Owner
County
County Highway Agency

About this bridge

2-8 over Chewaucan River is a prestressed concrete box beam or girders - multiple carrying 2-8 over Chewaucan River in Lake County, Oregon. It was built in 1972, so it is 53 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 544 vehicles a day, roughly 15% of them trucks, projected to reach 559 by 2025. The structure is 137 ft (41.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries2-8
CrossesChewaucan River
Location1.1 West HWY 31 Paisley
RouteCounty Highway C02-8
StateOregon
Coordinates42.69339, -120.55916
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span78 ft (23.8 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic544 (2020)
Projected traffic559 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 2-8 over Chewaucan River built?

It was built in 1972, making it 53 years old in 2025.

What condition is 2-8 over Chewaucan River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does 2-8 over Chewaucan River carry?

About 544 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is 2-8 over Chewaucan River?

The structure is 137 ft (41.8 m) long with a longest span of 78 ft (23.8 m) and a deck 24 ft wide.

Who owns 2-8 over Chewaucan River?

It is owned by the County Highway Agency.