US Bridges

Devlin Road over Nv RR

Fair

Napa County, California · 0.5 MI W&s of SR 29 · Structure no. 21C0132

Built
2012
13 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
1
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Devlin Road over Nv RR is a prestressed concrete stringer/multi-beam or girder carrying Devlin Road over Nv RR in Napa County, California. It was built in 2012, so it is 13 years old, younger 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 vehicles a day, roughly 1% of them trucks, projected to reach 4 by 2042. The structure is 71 ft (21.6 m) long and 49 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesDevlin Road
CrossesNv RR
Location0.5 MI W&s of SR 29
RouteCity Street 0
CountyNapa County
StateCalifornia
Coordinates38.20237, -122.26122
Functional classUrban 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
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 inspectionMay 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width49 ft (14.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2012)
Projected traffic4 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Devlin Road over Nv RR built?

It was built in 2012, making it 13 years old in 2025.

What condition is Devlin Road over Nv RR 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 2024.

How much traffic does Devlin Road over Nv RR carry?

About 1 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Devlin Road over Nv RR?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 49 ft wide.

Who owns Devlin Road over Nv RR?

It is owned by the City or Municipal Highway Agency.