US Bridges

County Road 60B over Interstate 5

Fair

Glenn County, California · 03-GLE-005-R5.58 · Structure no. 11 0082

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
172 ft
2 main spans
Daily traffic
1,000
2014 count
Owner
State
State Highway Agency

About this bridge

County Road 60B over Interstate 5 is a concrete continuous box beam or girders - multiple carrying County Road 60B over Interstate 5 in Glenn County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,300 by 2045. The structure is 172 ft (52.4 m) long and 34 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesCounty Road 60B
CrossesInterstate 5
Location03-GLE-005-R5.58
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.46561, -122.19606
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating57.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span85 ft (25.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2014)
Projected traffic1,300 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed18 mi (29 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 60B over Interstate 5 built?

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

What condition is County Road 60B over Interstate 5 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 May 2024.

How much traffic does County Road 60B over Interstate 5 carry?

About 1,000 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is County Road 60B over Interstate 5?

The structure is 172 ft (52.4 m) long with a longest span of 85 ft (25.9 m) and a deck 34 ft wide.

Who owns County Road 60B over Interstate 5?

It is owned by the State Highway Agency.