Structure 19C0020 · Placer County, CA

Atlantic ST over Antelope Creek

Carries Atlantic ST over Antelope Creek, W/o Faith Home Road.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT78 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

78 ft end to end. 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 box-beam bridge.

Built198937 years old
Length78.4 ft23.9 m
Daily traffic25,330counted 2003
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountyPlacer
LocationW/o Faith Home Road
CarriesAtlantic ST
CrossesAntelope Creek
Coordinates38.75797, -121.26575

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length78.4 ft (23.9 m)
Max Span75.8 ft (23.1 m)
Deck Width99.7 ft (30.4 m)
Deck Area726.6 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic25,330 (2003)
Truck Traffic1%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number19C0020

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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