Structure 24 0128 · Sacramento County, CA

Greenback LN over Interstate 80

Carries Greenback LN over Interstate 80, 03-sac-080-14.45.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT295 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

295 ft end to end, longest span 146 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 box-beam bridge.

Built1973rebuilt 2000
Length294.6 ft89.8 m
Daily traffic100,000counted 2010
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountySacramento
Location03-sac-080-14.45
CarriesGreenback LN
CrossesInterstate 80
Coordinates38.68312, -121.33679

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length294.6 ft (89.8 m)
Max Span146.0 ft (44.5 m)
Deck Width131.9 ft (40.2 m)
Deck Area3610.0 sq m
Main Spans2
Year Built1973 (reconstructed 2000)

Traffic

Avg Daily Traffic100,000 (2010)
Truck Traffic2%
Lanes On Bridge8
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number24 0128

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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