US Bridges

Spruce Grove Road over Copsey Creek

Fair

Lake County, California · 0.3 MI East of SR 29 · Structure no. 14C0117

Built
1995
30 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
102 ft
3 main spans
Daily traffic
512
2008 count
Owner
County
County Highway Agency

About this bridge

Spruce Grove Road over Copsey Creek is a steel continuous stringer/multi-beam or girder carrying Spruce Grove Road over Copsey Creek in Lake County, California. It was built in 1995, so it is 30 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 512 vehicles a day, roughly 5% of them trucks, projected to reach 666 by 2045. The structure is 102 ft (31.1 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSpruce Grove Road
CrossesCopsey Creek
Location0.3 MI East of SR 29
RouteCounty Highway 0
Coordinates38.88865, -122.5977
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans3
Design loadHS 20 + Mod
Structure length102 ft (31.1 m)
Longest span34 ft (10.4 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic512 (2008)
Projected traffic666 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Spruce Grove Road over Copsey Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Spruce Grove Road over Copsey Creek 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 November 2023.

How much traffic does Spruce Grove Road over Copsey Creek carry?

About 512 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is Spruce Grove Road over Copsey Creek?

The structure is 102 ft (31.1 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns Spruce Grove Road over Copsey Creek?

It is owned by the County Highway Agency.