Structure 23 0205R · Solano County, CA

State RTE 37 EB over Fairgrounds Drive

Carries State RTE 37 EB over Fairgrounds Drive, 04-sol-037-10.94-val.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT226 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 7/9

226 ft end to end, longest span 126 ft: about 3 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.

Built199234 years old
Length226.0 ft68.9 m
Daily traffic32,000counted 2009
Last inspectedDecember 2023every 24 months

Location

StateCalifornia
CountySolano
Location04-sol-037-10.94-val
CarriesState RTE 37 EB
CrossesFairgrounds Drive
Coordinates38.14119, -122.23286

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length226.0 ft (68.9 m)
Max Span126.0 ft (38.4 m)
Deck Width42.3 ft (12.9 m)
Deck Area888.8 sq m
Main Spans3
Year Built1992

Traffic

Avg Daily Traffic32,000 (2009)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number23 0205R

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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