Structure 55C0224 · Orange County, CA

Basque AVE over Brea Creek Channel

Carries Basque AVE over Brea Creek Channel, 100 S/o Malvern AVE.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

44 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 slab bridge.

Built194086 years old
Length44.0 ft13.4 m
Daily traffic8,000counted 2017
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountyOrange
Location100 S/o Malvern AVE
CarriesBasque AVE
CrossesBrea Creek Channel
Coordinates33.87544, -117.95067

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length44.0 ft (13.4 m)
Max Span44.0 ft (13.4 m)
Deck Width42.0 ft (12.8 m)
Deck Area171.5 sq m
Main Spans1
Year Built1940

Traffic

Avg Daily Traffic8,000 (2017)
Truck Traffic1%
Lanes On Bridge3

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number55C0224

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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