Structure 53C2320 · Los Angeles County, CA

Newhall AVE over Elsmere Creek

Carries Newhall AVE over Elsmere Creek, 125feet S/o Sierra HWY.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT561 FT ACROSS100 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 561 ft across with 2 openings: about 1.6 football fields. 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, so those are drawn as typical for a culvert.

Built196957 years old
Length561.0 ft171 m
Daily traffic34,814counted 2023
Last inspectedFebruary 2024every 48 months

Location

StateCalifornia
CountyLos Angeles
Location125feet S/o Sierra HWY
CarriesNewhall AVE
CrossesElsmere Creek
Coordinates34.36542, -118.50527

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length561.0 ft (171 m)
Max Span9.8 ft (3 m)
Deck Width98.4 ft (30 m)
Deck Area5,130 sq m
Main Spans2
Year Built1969

Traffic

Avg Daily Traffic34,814 (2023)
Truck Traffic5%
Lanes On Bridge7

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C2320

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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