Structure 29C0369 · San Joaquin County, CA

Mac Arthur DR over Corral Hollow Creek

Carries Mac Arthur DR over Corral Hollow Creek, 1.1 Mi S Linne RD.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 7/9

42 ft end to end, longest span 20 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 slab bridge.

Built196759 years old
Length42.0 ft12.8 m
Daily traffic2,165counted 2013
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountySan Joaquin
Location1.1 Mi S Linne RD
CarriesMac Arthur DR
CrossesCorral Hollow Creek
Coordinates37.68083, -121.41614

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length42.0 ft (12.8 m)
Max Span20.0 ft (6.1 m)
Deck Width40.7 ft (12.4 m)
Deck Area158.7 sq m
Main Spans2
Year Built1967

Traffic

Avg Daily Traffic2,165 (2013)
Truck Traffic30%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number29C0369

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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