US Bridges

Pomona Road over Little Chico Creek

Fair

Butte County, California · 0.4 MI Se/O Miller Ave · Structure no. 12C0328

Built
1917
108 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
1,100
2000 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pomona Road over Little Chico Creek is a concrete continuous tee beam carrying Pomona Road over Little Chico Creek in Butte County, California. It was built in 1917, so it is 108 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 1,100 vehicles a day, roughly 3% of them trucks, projected to reach 1,641 by 2042. The structure is 66 ft (20.2 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPomona Road
CrossesLittle Chico Creek
Location0.4 MI Se/O Miller Ave
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.71631, -121.84557
Functional classUrban 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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length66 ft (20.2 m)
Longest span30 ft (9.2 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2000)
Projected traffic1,641 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Pomona Road over Little Chico Creek built?

It was built in 1917, making it 108 years old in 2025.

What condition is Pomona Road over Little Chico Creek 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 October 2024.

How much traffic does Pomona Road over Little Chico Creek carry?

About 1,100 vehicles per day (2000 count), of which roughly 3% are trucks.

How long is Pomona Road over Little Chico Creek?

The structure is 66 ft (20.2 m) long with a longest span of 30 ft (9.2 m) and a deck 22 ft wide.

Who owns Pomona Road over Little Chico Creek?

It is owned by the City or Municipal Highway Agency.