US Bridges

Ragatz Lane over Yountville Overflow

Fair

Napa County, California · 0.7 MI NE Washingtn ST · Structure no. 21C0085

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
161
2014 count
Owner
County
County Highway Agency

About this bridge

Ragatz Lane over Yountville Overflow is a steel stringer/multi-beam or girder carrying Ragatz Lane over Yountville Overflow in Napa County, California. It was built in 1940, so it is 85 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 161 vehicles a day, roughly 10% of them trucks, projected to reach 246 by 2041. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRagatz Lane
CrossesYountville Overflow
Location0.7 MI NE Washingtn ST
RouteCounty Highway 0
CountyNapa County
StateCalifornia
Coordinates38.3823, -122.33429
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic161 (2014)
Projected traffic246 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Ragatz Lane over Yountville Overflow built?

It was built in 1940, making it 85 years old in 2025.

What condition is Ragatz Lane over Yountville Overflow 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 August 2023.

How much traffic does Ragatz Lane over Yountville Overflow carry?

About 161 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Ragatz Lane over Yountville Overflow?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Ragatz Lane over Yountville Overflow?

It is owned by the County Highway Agency.