Structure 23C0144 · Solano County, CA

Depot ST over Ulatis Creek

Carries Depot ST over Ulatis Creek, 350 M S Monte Vista AVE.

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
CAR · 15 FT98 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

98 ft end to end, longest span 33 ft. Lengths and the car 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 1995
Length98.4 ft30 m
Daily traffic14,480counted 2012
Last inspectedOctober 2024every 24 months

Location

StateCalifornia
CountySolano
Location350 M S Monte Vista AVE
CarriesDepot ST
CrossesUlatis Creek
Coordinates38.35583, -121.98133

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length98.4 ft (30 m)
Max Span33.1 ft (10.1 m)
Deck Width129.9 ft (39.6 m)
Deck Area1,188 sq m
Main Spans3
Year Built1970 (reconstructed 1995)

Traffic

Avg Daily Traffic14,480 (2012)
Truck Traffic5%
Lanes On Bridge6

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number23C0144

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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