US Bridges

Interstate 80 EB over Old Davis Road

Good

Solano County, California · 04-SOL-080-R43.50 · Structure no. 23 0155R

Built
1974
51 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
173 ft
2 main spans
Daily traffic
61,500
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 80 EB over Old Davis Road is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 80 EB over Old Davis Road in Solano County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 61,500 vehicles a day, roughly 7% of them trucks, projected to reach 95,921 by 2042. The structure is 173 ft (52.7 m) long and 92 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesInterstate 80 EB
CrossesOld Davis Road
Location04-SOL-080-R43.50
RouteInterstate 80
Coordinates38.52842, -121.7573
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length173 ft (52.7 m)
Longest span99 ft (30.2 m)
Deck width92 ft (28 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,500 (2020)
Projected traffic95,921 by 2042
Trucks7%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 80 EB over Old Davis Road built?

It was built in 1974, making it 51 years old in 2025.

What condition is Interstate 80 EB over Old Davis Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Interstate 80 EB over Old Davis Road carry?

About 61,500 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Interstate 80 EB over Old Davis Road?

The structure is 173 ft (52.7 m) long with a longest span of 99 ft (30.2 m) and a deck 92 ft wide.

Who owns Interstate 80 EB over Old Davis Road?

It is owned by the State Highway Agency.