Structure 11C0115 · Glenn County, CA

Road E over Hambright Creek

Carries Road E over Hambright Creek, 1.0 Mi N RD 200.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

60 ft end to end, longest span 30 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built194086 years old
Length60.0 ft18.3 m
Daily traffic373counted 2011
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyGlenn
Location1.0 Mi N RD 200
CarriesRoad E
CrossesHambright Creek
Coordinates39.77066, -122.23863

Physical Characteristics

MaterialConcrete Continuous
DesignGirder and Floorbeam
Total Length60.0 ft (18.3 m)
Max Span29.9 ft (9.1 m)
Deck Width22.3 ft (6.8 m)
Deck Area124.4 sq m
Main Spans2
Year Built1940

Traffic

Avg Daily Traffic373 (2011)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number11C0115

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges