Structure 8550002P0000000 · Tulare County, CA

Crystal Cave Road over Marble Fork Kaweah River

Carries Crystal Cave Road over Marble Fork Kaweah River, 14.3 Mi. NE Of Ash Mt. En.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT140 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

140 ft end to end. 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 box-beam bridge.

Built199333 years old
Length140.1 ft42.7 m
Daily traffic84counted 2013
Last inspectedJuly 2023every 24 months

Location

StateCalifornia
CountyTulare
Location14.3 Mi. NE Of Ash Mt. En
CarriesCrystal Cave Road
CrossesMarble Fork Kaweah River
Coordinates36.57581, -118.78637

Physical Characteristics

MaterialConcrete
DesignBox Beam - Single/Spread
Total Length140.1 ft (42.7 m)
Max Span75.1 ft (22.9 m)
Deck Width30.8 ft (9.4 m)
Deck Area401.4 sq m
Main Spans1
Year Built1993

Traffic

Avg Daily Traffic84 (2013)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number8550002P0000000

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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