Structure 22C0153 · Yolo County, CA

"i" Street over Sacramento Up Bnsf Amtra

Carries "i" Street over Sacramento Up Bnsf Amtra, At Sacramento Co. Line.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT854 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

854 ft end to end, longest span 390 ft: about 2.4 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 swing bridge (drawn closed).

Built1911115 years old
Length854.0 ft260.3 m
Daily traffic4,938counted 2017
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountyYolo
LocationAt Sacramento Co. Line
Carries"i" Street
CrossesSacramento Up Bnsf Amtra
Coordinates38.58668, -121.50816

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length854.0 ft (260.3 m)
Max Span390.1 ft (118.9 m)
Deck Width27.9 ft (8.5 m)
Deck Area2212.6 sq m
Main Spans4
Year Built1911

Traffic

Avg Daily Traffic4,938 (2017)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical5 — Stable for scour
Structure Number22C0153

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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