US Bridges

Highland Spring RD over Highland Creek

Good

Lake County, California · 4.4 MI Sw/O Bell Hill RD · Structure no. 14C0125

Built
2015
10 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
46 ft
1 main span
Daily traffic
52
2011 count
Owner
County
County Highway Agency

About this bridge

Highland Spring RD over Highland Creek is a concrete slab carrying Highland Spring RD over Highland Creek in Lake County, California. It was built in 2015, so it is 10 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 52 vehicles a day, roughly 2% of them trucks, projected to reach 94 by 2046. The structure is 46 ft (13.9 m) long and 19 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

CarriesHighland Spring RD
CrossesHighland Creek
Location4.4 MI Sw/O Bell Hill RD
RouteCounty Highway 0
Coordinates38.93816, -122.94143
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable 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 loadHL 93
Structure length46 ft (13.9 m)
Longest span41 ft (12.6 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52 (2011)
Projected traffic94 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed29.2 mi (47 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 Highland Spring RD over Highland Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Highland Spring RD over Highland 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 March 2024.

How much traffic does Highland Spring RD over Highland Creek carry?

About 52 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Highland Spring RD over Highland Creek?

The structure is 46 ft (13.9 m) long with a longest span of 41 ft (12.6 m) and a deck 19 ft wide.

Who owns Highland Spring RD over Highland Creek?

It is owned by the County Highway Agency.