US Bridges

Oasis Road over UP RR & AMTRAK

Good

Shasta County, California · 0.5 MI E of Lake Bl. · Structure no. 06C0035

Built
1939
86 years old, rebuilt 1967
Condition
Good
inspected May 2021
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
4,570
2012 count
Owner
County
County Highway Agency

About this bridge

Oasis Road over UP RR & AMTRAK is a concrete continuous slab carrying Oasis Road over UP RR & AMTRAK in Shasta County, California. It was built in 1939 and reconstructed in 1967, so it is 86 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 4,570 vehicles a day, roughly 5% of them trucks, projected to reach 10,617 by 2043. The structure is 100 ft (30.5 m) long and 37 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesOasis Road
CrossesUP RR & AMTRAK
Location0.5 MI E of Lake Bl.
CountyShasta County
StateCalifornia
Coordinates40.63102, -122.39764
Functional classUrban Minor Arterial

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.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,570 (2012)
Projected traffic10,617 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed13 mi (21 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oasis Road over UP RR & AMTRAK built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1967.

What condition is Oasis Road over UP RR & AMTRAK 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 May 2021.

How much traffic does Oasis Road over UP RR & AMTRAK carry?

About 4,570 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Oasis Road over UP RR & AMTRAK?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.

Who owns Oasis Road over UP RR & AMTRAK?

It is owned by the County Highway Agency.