Structure 24 4313 · Sacramento County, CA

I-5-RAMP C13-sb over Front Street

Carries I-5-RAMP C13-sb over Front Street, 03-sac-005-22.59-sac.

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 FT1,101 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,101 ft end to end, longest span 137 ft: about 3.1 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 or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built197155 years old
Length1101.0 ft335.6 m
Daily traffic21,750counted 2020
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountySacramento
Location03-sac-005-22.59-sac
CarriesI-5-RAMP C13-sb
CrossesFront Street
Coordinates38.56952, -121.51237

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length1101.0 ft (335.6 m)
Max Span137.1 ft (41.8 m)
Deck Width27.9 ft (8.5 m)
Deck Area2852.6 sq m
Main Spans10
Year Built1971

Traffic

Avg Daily Traffic21,750 (2020)
Truck Traffic20%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number24 4313

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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