US Bridges

Dover Ave over Union Ave Diversion Chan

Fair

Solano County, California · 0.1 MI N Cement Hill RD · Structure no. 23C0112

Built
1988
37 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
8,678
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dover Ave over Union Ave Diversion Chan is a concrete continuous culvert carrying Dover Ave over Union Ave Diversion Chan in Solano County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,678 vehicles a day, roughly 1% of them trucks, projected to reach 17,100 by 2045. The structure is 23 ft (7 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesDover Ave
CrossesUnion Ave Diversion Chan
Location0.1 MI N Cement Hill RD
RouteCity Street 0
CountySolano County
StateCalifornia
Coordinates38.28083, -122.025
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width90 ft (27.3 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,678 (2007)
Projected traffic17,100 by 2045
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dover Ave over Union Ave Diversion Chan built?

It was built in 1988, making it 37 years old in 2025.

What condition is Dover Ave over Union Ave Diversion Chan in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Dover Ave over Union Ave Diversion Chan carry?

About 8,678 vehicles per day (2007 count), of which roughly 1% are trucks.

How long is Dover Ave over Union Ave Diversion Chan?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 90 ft wide.

Who owns Dover Ave over Union Ave Diversion Chan?

It is owned by the City or Municipal Highway Agency.