Structure 5C0042 · Trinity County, CA

Tule Creek Road over Salt Creek

Carries Tule Creek Road over Salt Creek, 0.8 Mi West Of S.r. 3.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT122 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

122 ft end to end, longest span 48 ft. Lengths and the semi-truck 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.

Built194779 years old
Length122.0 ft37.2 m
Daily traffic670counted 2000
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountyTrinity
Location0.8 Mi West Of S.r. 3
CarriesTule Creek Road
CrossesSalt Creek
Coordinates40.54872, -123.20478

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length122.0 ft (37.2 m)
Max Span47.6 ft (14.5 m)
Deck Width27.9 ft (8.5 m)
Deck Area316.2 sq m
Main Spans2
Year Built1947

Traffic

Avg Daily Traffic670 (2000)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number05C0042

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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