Structure 24C0167 · Sacramento County, CA

River Road over Delta Cross Channel

Carries River Road over Delta Cross Channel, N Edge Walnut Grve S Lock.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT299 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

299 ft end to end, longest span 80 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 multi-beam bridge.

Built195175 years old
Length298.9 ft91.1 m
Daily traffic9,588counted 2009
Last inspectedOctober 2024every 24 months

Location

StateCalifornia
CountySacramento
LocationN Edge Walnut Grve S Lock
CarriesRiver Road
CrossesDelta Cross Channel
Coordinates38.24648, -121.51039

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length298.9 ft (91.1 m)
Max Span80.1 ft (24.4 m)
Deck Width40.4 ft (12.3 m)
Deck Area1120.5 sq m
Main Spans3
Year Built1951

Traffic

Avg Daily Traffic9,588 (2009)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number24C0167

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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