US Bridges

State Route 29 over Lucerne Cut-Off

Fair

Lake County, California · 01-LAK-029-R47.85 · Structure no. 14 0072R

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
2,850
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 29 over Lucerne Cut-Off is a prestressed concrete box beam or girders - multiple carrying State Route 29 over Lucerne Cut-Off in Lake County, California. It was built in 1972, so it is 53 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 2,850 vehicles a day, roughly 10% of them trucks, projected to reach 9,321 by 2046. The structure is 109 ft (33.3 m) long and 41 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesState Route 29
CrossesLucerne Cut-Off
Location01-LAK-029-R47.85
RouteState Highway 29
CountyLake County
StateCalifornia
Coordinates39.11823, -122.90499
Functional classRural Principal Arterial - Other

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.
Last inspectionOctober 2024
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length109 ft (33.3 m)
Longest span108 ft (32.8 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,850 (2009)
Projected traffic9,321 by 2046
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemYes

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 State Route 29 over Lucerne Cut-Off built?

It was built in 1972, making it 53 years old in 2025.

What condition is State Route 29 over Lucerne Cut-Off 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 October 2024.

How much traffic does State Route 29 over Lucerne Cut-Off carry?

About 2,850 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is State Route 29 over Lucerne Cut-Off?

The structure is 109 ft (33.3 m) long with a longest span of 108 ft (32.8 m) and a deck 41 ft wide.

Who owns State Route 29 over Lucerne Cut-Off?

It is owned by the State Highway Agency.