US Bridges

Mockingbird Lane over Robinson Creek

Good

Lake County, California · 0.3 MI NW of Route 29 · Structure no. 14C0130

Built
2018
7 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
46
2011 count
Owner
County
County Highway Agency

About this bridge

Mockingbird Lane over Robinson Creek is a concrete slab carrying Mockingbird Lane over Robinson Creek in Lake County, California. It was built in 2018, so it is 7 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 46 vehicles a day, roughly 2% of them trucks, projected to reach 78 by 2042. The structure is 45 ft (13.8 m) long and 25 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesMockingbird Lane
CrossesRobinson Creek
Location0.3 MI NW of Route 29
RouteCounty Highway 0
Coordinates39.13972, -122.91341
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length45 ft (13.8 m)
Longest span43 ft (13.1 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2011)
Projected traffic78 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed61.5 mi (99 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mockingbird Lane over Robinson Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Mockingbird Lane over Robinson Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does Mockingbird Lane over Robinson Creek carry?

About 46 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Mockingbird Lane over Robinson Creek?

The structure is 45 ft (13.8 m) long with a longest span of 43 ft (13.1 m) and a deck 25 ft wide.

Who owns Mockingbird Lane over Robinson Creek?

It is owned by the County Highway Agency.