Structure 8 0125R · Tehama County, CA

Interstate 5 NB over Sour Grass Creek

Carries Interstate 5 NB over Sour Grass Creek, 02-teh-005-r2.27.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT109 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

109 ft end to end, longest span 43 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 tee-beam bridge.

Built196660 years old
Length108.9 ft33.2 m
Daily traffic12,300counted 2015
Last inspectedFebruary 2024every 24 months

Location

StateCalifornia
CountyTehama
Location02-teh-005-r2.27
CarriesInterstate 5 NB
CrossesSour Grass Creek
Coordinates39.83086, -122.19974

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length108.9 ft (33.2 m)
Max Span43.0 ft (13.1 m)
Deck Width41.0 ft (12.5 m)
Deck Area415 sq m
Main Spans3
Year Built1966

Traffic

Avg Daily Traffic12,300 (2015)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number08 0125R

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.

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