US Bridges

Cana HWY over Diannes Ditch #3

Fair

Butte County, California · 0.9 MI W of SH 99 · Structure no. 12C0094

Built
1967
58 years old
Condition
Fair
inspected July 2022
Type
Slab
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
210
2019 count
Owner
County
County Highway Agency

About this bridge

Cana HWY over Diannes Ditch #3 is a concrete continuous slab carrying Cana HWY over Diannes Ditch #3 in Butte County, California. It was built in 1967, so it is 58 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 210 vehicles a day, roughly 12% of them trucks, projected to reach 762 by 2042. The structure is 29 ft (8.9 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCana HWY
CrossesDiannes Ditch #3
Location0.9 MI W of SH 99
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.84039, -121.95455
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length29 ft (8.9 m)
Longest span14 ft (4.3 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2019)
Projected traffic762 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Cana HWY over Diannes Ditch #3 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Cana HWY over Diannes Ditch #3 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 July 2022.

How much traffic does Cana HWY over Diannes Ditch #3 carry?

About 210 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is Cana HWY over Diannes Ditch #3?

The structure is 29 ft (8.9 m) long with a longest span of 14 ft (4.3 m) and a deck 29 ft wide.

Who owns Cana HWY over Diannes Ditch #3?

It is owned by the County Highway Agency.