Structure 24C0099 · Sacramento County, CA

Northgate BLVD over Natomas E Main Drn Canal

Carries Northgate BLVD over Natomas E Main Drn Canal, 0.1 Mi S Of Garden HWY.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT275 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 7/9

275 ft end to end, longest span 43 ft: about 4 semi-trucks nose to tail. 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 slab bridge.

Built1970rebuilt 2006
Length274.9 ft83.8 m
Daily traffic19,991counted 2017
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountySacramento
Location0.1 Mi S Of Garden HWY
CarriesNorthgate BLVD
CrossesNatomas E Main Drn Canal
Coordinates38.60428, -121.47540

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length274.9 ft (83.8 m)
Max Span43.0 ft (13.1 m)
Deck Width85.6 ft (26.1 m)
Deck Area2187.2 sq m
Main Spans7
Year Built1970 (reconstructed 2006)

Traffic

Avg Daily Traffic19,991 (2017)
Truck Traffic10%
Lanes On Bridge5

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number24C0099

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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