US Bridges

Carlsbad Blvd NB over Las Encinas Creek

Fair

San Diego County, California · 0.6MI S/O Palomar Airport · Structure no. 57C0214R

Built
1951
74 years old
Condition
Fair
inspected August 2021
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
12,300
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carlsbad Blvd NB over Las Encinas Creek is a concrete culvert carrying Carlsbad Blvd NB over Las Encinas Creek in San Diego County, California. It was built in 1951, so it is 74 years old, older 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 12,300 vehicles a day, roughly 1% of them trucks, projected to reach 16,033 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCarlsbad Blvd NB
CrossesLas Encinas Creek
Location0.6MI S/O Palomar Airport
RouteCity Street 0
Coordinates33.1159, -117.32402
Functional classUrban Minor Arterial

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 protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,300 (2016)
Projected traffic16,033 by 2038
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Carlsbad Blvd NB over Las Encinas Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is Carlsbad Blvd NB over Las Encinas 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 August 2021.

How much traffic does Carlsbad Blvd NB over Las Encinas Creek carry?

About 12,300 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Carlsbad Blvd NB over Las Encinas Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Carlsbad Blvd NB over Las Encinas Creek?

It is owned by the City or Municipal Highway Agency.