US Bridges

CO RD H \ Glenn Av over Hambright Creek

Fair

Glenn County, California · 0.5 MI South of RD 9 · Structure no. 11C0114

Built
1990
35 years old
Condition
Fair
inspected August 2022
Type
Slab
Concrete Continuous
Length
73 ft
3 main spans
Daily traffic
650
2007 count
Owner
County
County Highway Agency

About this bridge

CO RD H \ Glenn Av over Hambright Creek is a concrete continuous slab carrying CO RD H \ Glenn Av over Hambright Creek in Glenn County, California. It was built in 1990, so it is 35 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 6 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 650 vehicles a day, roughly 5% of them trucks, projected to reach 872 by 2044. The structure is 73 ft (22.3 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCO RD H \ Glenn Av
CrossesHambright Creek
Location0.5 MI South of RD 9
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.76582, -122.21544
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans3
Design loadHS 20 + Mod
Structure length73 ft (22.3 m)
Longest span28 ft (8.5 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2007)
Projected traffic872 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 CO RD H \ Glenn Av over Hambright Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is CO RD H \ Glenn Av over Hambright 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 August 2022.

How much traffic does CO RD H \ Glenn Av over Hambright Creek carry?

About 650 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is CO RD H \ Glenn Av over Hambright Creek?

The structure is 73 ft (22.3 m) long with a longest span of 28 ft (8.5 m) and a deck 29 ft wide.

Who owns CO RD H \ Glenn Av over Hambright Creek?

It is owned by the County Highway Agency.