US Bridges

Lone Jack RD over Copper Creek

Fair

San Diego County, California · 1.36M E/O Rancho Santa Fe · Structure no. 57C0569

Built
1980
45 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
6,446
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lone Jack RD over Copper Creek is a concrete culvert carrying Lone Jack RD over Copper Creek in San Diego County, California. It was built in 1980, so it is 45 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 6 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 6,446 vehicles a day, roughly 2% of them trucks, projected to reach 7,193 by 2041. The structure is 30 ft (9.1 m) long and 53 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesLone Jack RD
CrossesCopper Creek
Location1.36M E/O Rancho Santa Fe
RouteCounty Highway 0
CountySan Diego County
StateCalifornia
Coordinates33.05923, -117.21592
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span12 ft (3.7 m)
Deck width53 ft (16.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,446 (2020)
Projected traffic7,193 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lone Jack RD over Copper Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Lone Jack RD over Copper 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 April 2024.

How much traffic does Lone Jack RD over Copper Creek carry?

About 6,446 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Lone Jack RD over Copper Creek?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.7 m) and a deck 53 ft wide.

Who owns Lone Jack RD over Copper Creek?

It is owned by the City or Municipal Highway Agency.