Structure 46C0420 · Tulare County, CA

Road 108 over ST Johns River

Carries Road 108 over ST Johns River, 0.75 Mi S Of AVE 328.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT201 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

201 ft end to end, longest span 36 ft: about 3 semi-trucks nose to tail. 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 slab bridge.

Built196462 years old
Length201.1 ft61.3 m
Daily traffic2,000counted 1982
Last inspectedMarch 2024every 24 months

Location

StateCalifornia
CountyTulare
Location0.75 Mi S Of AVE 328
CarriesRoad 108
CrossesST Johns River
Coordinates36.37430, -119.33214

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length201.1 ft (61.3 m)
Max Span36.1 ft (11 m)
Deck Width28.5 ft (8.7 m)
Deck Area533.3 sq m
Main Spans6
Year Built1964

Traffic

Avg Daily Traffic2,000 (1982)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number46C0420

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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