US Bridges

Rose Drive over Interstate 780

Fair

Solano County, California · 04-SOL-780-4.96-BEN · Structure no. 23 0116

Built
1960
65 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
158 ft
2 main spans
Daily traffic
1,155
2015 count
Owner
State
State Highway Agency

About this bridge

Rose Drive over Interstate 780 is a prestressed concrete tee beam carrying Rose Drive over Interstate 780 in Solano County, California. It was built in 1960, so it is 65 years old, older 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 5 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 1,155 vehicles a day, roughly 2% of them trucks, projected to reach 1,392 by 2042. The structure is 158 ft (48.2 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRose Drive
CrossesInterstate 780
Location04-SOL-780-4.96-BEN
RouteCity Street 0
CountySolano County
StateCalifornia
Coordinates38.08006, -122.19294
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length158 ft (48.2 m)
Longest span76 ft (23.2 m)
Deck width34 ft (10.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,155 (2015)
Projected traffic1,392 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rose Drive over Interstate 780 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Rose Drive over Interstate 780 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 Rose Drive over Interstate 780 carry?

About 1,155 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Rose Drive over Interstate 780?

The structure is 158 ft (48.2 m) long with a longest span of 76 ft (23.2 m) and a deck 34 ft wide.

Who owns Rose Drive over Interstate 780?

It is owned by the State Highway Agency.