US Bridges

Road 28 over Walker Creek

Fair

Glenn County, California · 1.0 MI E/O Road F · Structure no. 11C0105

Built
1974
51 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
169 ft
6 main spans
Daily traffic
235
2004 count
Owner
County
County Highway Agency

About this bridge

Road 28 over Walker Creek is a concrete continuous slab carrying Road 28 over Walker Creek in Glenn County, California. It was built in 1974, so it is 51 years old, younger 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 235 vehicles a day, roughly 20% of them trucks, projected to reach 310 by 2047. The structure is 169 ft (51.5 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRoad 28
CrossesWalker Creek
Location1.0 MI E/O Road F
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.66792, -122.21789
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length169 ft (51.5 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2004)
Projected traffic310 by 2047
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 28 over Walker Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Road 28 over Walker 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 February 2025.

How much traffic does Road 28 over Walker Creek carry?

About 235 vehicles per day (2004 count), of which roughly 20% are trucks.

How long is Road 28 over Walker Creek?

The structure is 169 ft (51.5 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Road 28 over Walker Creek?

It is owned by the County Highway Agency.