US Bridges

Hankins Road over Glenn-Colusa Canal

Good

Colusa County, California · 1 MI NE Then N Walnut DR · Structure no. 15C0104

Built
1930
95 years old, rebuilt 1997
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
180
2015 count
Owner
County
County Highway Agency

About this bridge

Hankins Road over Glenn-Colusa Canal is a wood or timber stringer/multi-beam or girder carrying Hankins Road over Glenn-Colusa Canal in Colusa County, California. It was built in 1930 and reconstructed in 1997, 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 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 180 vehicles a day, roughly 10% of them trucks, projected to reach 246 by 2044. The structure is 24 ft (7.3 m) long and 21 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesHankins Road
CrossesGlenn-Colusa Canal
Location1 MI NE Then N Walnut DR
RouteCounty Highway 0
Coordinates39.12739, -122.1798
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating26.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span23 ft (6.9 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2015)
Projected traffic246 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Hankins Road over Glenn-Colusa Canal built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1997.

What condition is Hankins Road 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 Hankins Road over Glenn-Colusa Canal carry?

About 180 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Hankins Road over Glenn-Colusa Canal?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (6.9 m) and a deck 21 ft wide.

Who owns Hankins Road over Glenn-Colusa Canal?

It is owned by the County Highway Agency.