US Bridges

Orville-Grdley HWY over Sutter-Butte Canal

Fair

Butte County, California · 0.5 MI E/O Larkin RD · Structure no. 12C0222

Built
1920
105 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
5,298
2017 count
Owner
County
County Highway Agency

About this bridge

Orville-Grdley HWY over Sutter-Butte Canal is a concrete continuous culvert carrying Orville-Grdley HWY over Sutter-Butte Canal in Butte County, California. It was built in 1920, so it is 105 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 6 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 5,298 vehicles a day, roughly 9% of them trucks, projected to reach 10,904 by 2045. The structure is 30 ft (9.1 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOrville-Grdley HWY
CrossesSutter-Butte Canal
Location0.5 MI E/O Larkin RD
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.36355, -121.65086
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width39 ft (11.9 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,298 (2017)
Projected traffic10,904 by 2045
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Orville-Grdley HWY over Sutter-Butte Canal built?

It was built in 1920, making it 105 years old in 2025.

What condition is Orville-Grdley HWY over Sutter-Butte Canal 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 February 2025.

How much traffic does Orville-Grdley HWY over Sutter-Butte Canal carry?

About 5,298 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Orville-Grdley HWY over Sutter-Butte Canal?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 39 ft wide.

Who owns Orville-Grdley HWY over Sutter-Butte Canal?

It is owned by the County Highway Agency.