US Bridges

Cordelia Road over Suisun Creek

Poor

Solano County, California · West of Chadbourne RD · Structure no. 23C0257

Built
2007
18 years old
Condition
Poor
inspected August 2024
Type
Slab
Prestressed Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
4,277
2010 count
Owner
County
County Highway Agency

About this bridge

Cordelia Road over Suisun Creek is a prestressed concrete continuous slab carrying Cordelia Road over Suisun Creek in Solano County, California. It was built in 2007, so it is 18 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,277 vehicles a day, roughly 5% of them trucks, projected to reach 5,834 by 2042. The structure is 131 ft (40 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCordelia Road
CrossesSuisun Creek
LocationWest of Chadbourne RD
RouteCounty Highway 0
Coordinates38.22462, -122.10765
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length131 ft (40 m)
Longest span52 ft (16 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,277 (2010)
Projected traffic5,834 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$873,000 (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cordelia Road over Suisun Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Cordelia Road over Suisun Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Cordelia Road over Suisun Creek carry?

About 4,277 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Cordelia Road over Suisun Creek?

The structure is 131 ft (40 m) long with a longest span of 52 ft (16 m) and a deck 43 ft wide.

Who owns Cordelia Road over Suisun Creek?

It is owned by the County Highway Agency.