US Bridges

Silverado Trail over Rector Creek

Fair

Napa County, California · 1 MI N Yountvile Cross RD · Structure no. 21C0019

Built
1957
68 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
5,450
2005 count
Owner
County
County Highway Agency

About this bridge

Silverado Trail over Rector Creek is a prestressed concrete tee beam carrying Silverado Trail over Rector Creek in Napa County, California. It was built in 1957, so it is 68 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 5,450 vehicles a day, roughly 10% of them trucks, projected to reach 8,365 by 2040. The structure is 52 ft (15.8 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSilverado Trail
CrossesRector Creek
Location1 MI N Yountvile Cross RD
RouteCounty Highway 0
CountyNapa County
StateCalifornia
Coordinates38.4383, -122.35044
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (2005)
Projected traffic8,365 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silverado Trail over Rector Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Silverado Trail over Rector Creek 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 May 2023.

How much traffic does Silverado Trail over Rector Creek carry?

About 5,450 vehicles per day (2005 count), of which roughly 10% are trucks.

How long is Silverado Trail over Rector Creek?

The structure is 52 ft (15.8 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Silverado Trail over Rector Creek?

It is owned by the County Highway Agency.