US Bridges

Road E over Hambright Creek

Good

Glenn County, California · 1.0 MI N RD 200 · Structure no. 11C0115

Built
1940
85 years old
Condition
Good
inspected August 2024
Type
Girder and Floorbeam System
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
373
2011 count
Owner
County
County Highway Agency

About this bridge

Road E over Hambright Creek is a concrete continuous girder and floorbeam system carrying Road E over Hambright Creek in Glenn County, California. It was built in 1940, so it is 85 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 373 vehicles a day, roughly 10% of them trucks, projected to reach 423 by 2044. The structure is 60 ft (18.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoad E
CrossesHambright Creek
Location1.0 MI N RD 200
RouteCounty Highway 0
Coordinates39.77066, -122.23863
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating17.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic373 (2011)
Projected traffic423 by 2044
Trucks10%
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 Road E over Hambright Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Road E over Hambright Creek 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 August 2024.

How much traffic does Road E over Hambright Creek carry?

About 373 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Road E over Hambright Creek?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 22 ft wide.

Who owns Road E over Hambright Creek?

It is owned by the County Highway Agency.