US Bridges

Road 61 over Princeton Codora Canal

Fair

Glenn County, California · 0.05 MI W of S.H. 45 · Structure no. 11C0065

Built
1930
95 years old, rebuilt 1979
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete
Length
21 ft
1 main span
Daily traffic
967
2018 count
Owner
County
County Highway Agency

About this bridge

Road 61 over Princeton Codora Canal is a concrete tee beam carrying Road 61 over Princeton Codora Canal in Glenn County, California. It was built in 1930 and reconstructed in 1979, so it is 95 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 967 vehicles a day, roughly 30% of them trucks, projected to reach 1,162 by 2042. The structure is 21 ft (6.4 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRoad 61
CrossesPrinceton Codora Canal
Location0.05 MI W of S.H. 45
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.45728, -122.0176
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width39 ft (11.9 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic967 (2018)
Projected traffic1,162 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Road 61 over Princeton Codora Canal built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1979.

What condition is Road 61 over Princeton Codora 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 2024.

How much traffic does Road 61 over Princeton Codora Canal carry?

About 967 vehicles per day (2018 count), of which roughly 30% are trucks.

How long is Road 61 over Princeton Codora Canal?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns Road 61 over Princeton Codora Canal?

It is owned by the County Highway Agency.