US Bridges

Hankins Road over Spring Creek

Poor

Colusa County, California · 0.8 MI NW from Walnut DR · Structure no. 15C0103

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
118
2014 count
Owner
County
County Highway Agency

About this bridge

Hankins Road over Spring Creek is a concrete tee beam carrying Hankins Road over Spring Creek in Colusa County, California. It was built in 1960, so it is 65 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 118 vehicles a day, roughly 10% of them trucks, projected to reach 276 by 2046. The structure is 43 ft (13 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesHankins Road
CrossesSpring Creek
Location0.8 MI NW from Walnut DR
RouteCounty Highway 0
Coordinates39.12656, -122.19161
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (2014)
Projected traffic276 by 2046
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$193,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hankins Road over Spring Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Hankins Road over Spring Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Hankins Road over Spring Creek carry?

About 118 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Hankins Road over Spring Creek?

The structure is 43 ft (13 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Hankins Road over Spring Creek?

It is owned by the County Highway Agency.