US Bridges

Danley Lateral RD over Glenn-Colusa Canal

Good

Colusa County, California · 0.3 MI West of Danley RD · Structure no. 15C0187

Built
2000
25 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
77
2015 count
Owner
County
County Highway Agency

About this bridge

Danley Lateral RD over Glenn-Colusa Canal is a concrete continuous slab carrying Danley Lateral RD over Glenn-Colusa Canal in Colusa County, California. It was built in 2000, so it is 25 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 77 vehicles a day, roughly 10% of them trucks, projected to reach 111 by 2046. The structure is 67 ft (20.3 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesDanley Lateral RD
CrossesGlenn-Colusa Canal
Location0.3 MI West of Danley RD
RouteCounty Highway 0
Coordinates39.22596, -122.25243
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length67 ft (20.3 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2015)
Projected traffic111 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Danley Lateral RD over Glenn-Colusa Canal built?

It was built in 2000, making it 25 years old in 2025.

What condition is Danley Lateral RD over Glenn-Colusa Canal 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 December 2024.

How much traffic does Danley Lateral RD over Glenn-Colusa Canal carry?

About 77 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Danley Lateral RD over Glenn-Colusa Canal?

The structure is 67 ft (20.3 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns Danley Lateral RD over Glenn-Colusa Canal?

It is owned by the County Highway Agency.