US Bridges

Interstate 5 NB over Thomes Creek Overflow

Good

Tehama County, California · 02-TEH-005-R11.78 · Structure no. 08 0107R

Built
1965
60 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
60 ft
3 main spans
Daily traffic
14,500
2015 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over Thomes Creek Overflow is a concrete continuous slab carrying Interstate 5 NB over Thomes Creek Overflow in Tehama County, California. It was built in 1965, so it is 60 years old, older than the California average of 54.8 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 14,500 vehicles a day, roughly 21% of them trucks, projected to reach 28,000 by 2040. The structure is 60 ft (18.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 5 NB
CrossesThomes Creek Overflow
Location02-TEH-005-R11.78
RouteInterstate 5
Coordinates39.96873, -122.2005
Functional classRural Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span23 ft (7 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2015)
Projected traffic28,000 by 2040
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 5 NB over Thomes Creek Overflow built?

It was built in 1965, making it 60 years old in 2025.

What condition is Interstate 5 NB over Thomes Creek Overflow 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 April 2023.

How much traffic does Interstate 5 NB over Thomes Creek Overflow carry?

About 14,500 vehicles per day (2015 count), of which roughly 21% are trucks.

How long is Interstate 5 NB over Thomes Creek Overflow?

The structure is 60 ft (18.3 m) long with a longest span of 23 ft (7 m) and a deck 41 ft wide.

Who owns Interstate 5 NB over Thomes Creek Overflow?

It is owned by the State Highway Agency.