US Bridges

Lincoln Avenue over State Route 29

Fair

Napa County, California · 04-NAP-029-12.04-NAP · Structure no. 21 0089

Built
1967
58 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
269 ft
2 main spans
Daily traffic
5,259
2009 count
Owner
State
State Highway Agency

About this bridge

Lincoln Avenue over State Route 29 is a prestressed concrete continuous stringer/multi-beam or girder carrying Lincoln Avenue over State Route 29 in Napa County, California. It was built in 1967, so it is 58 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 5,259 vehicles a day, roughly 3% of them trucks, projected to reach 5,041 by 2041. The structure is 269 ft (82 m) long and 65 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLincoln Avenue
CrossesState Route 29
Location04-NAP-029-12.04-NAP
RouteCity Street 0
CountyNapa County
StateCalifornia
Coordinates38.30665, -122.30518
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length269 ft (82 m)
Longest span100 ft (30.5 m)
Deck width65 ft (19.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,259 (2009)
Projected traffic5,041 by 2041
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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 Lincoln Avenue over State Route 29 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Lincoln Avenue over State Route 29 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 April 2023.

How much traffic does Lincoln Avenue over State Route 29 carry?

About 5,259 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Lincoln Avenue over State Route 29?

The structure is 269 ft (82 m) long with a longest span of 100 ft (30.5 m) and a deck 65 ft wide.

Who owns Lincoln Avenue over State Route 29?

It is owned by the State Highway Agency.