US Bridges

State Route 76 over LA Jolla Amago Creek

Good

San Diego County, California · 11-SD-076-39.86 · Structure no. 57 0169

Built
1939
86 years old
Condition
Good
inspected August 2022
Type
Arch - Deck
Concrete
Length
20 ft
1 main span
Daily traffic
2,050
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 76 over LA Jolla Amago Creek is a concrete arch - deck carrying State Route 76 over LA Jolla Amago Creek in San Diego County, California. It was built in 1939, so it is 86 years old, older 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 2,050 vehicles a day, roughly 1% of them trucks, projected to reach 5,135 by 2042. The structure is 20 ft (6.1 m) long and 36 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesState Route 76
CrossesLA Jolla Amago Creek
Location11-SD-076-39.86
RouteState Highway 76
Coordinates33.28786, -116.87476
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2022
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 rating69.7 US tons
Inventory rating41.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width36 ft (11 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,050 (2015)
Projected traffic5,135 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 76 over LA Jolla Amago Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is State Route 76 over LA Jolla Amago 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 August 2022.

How much traffic does State Route 76 over LA Jolla Amago Creek carry?

About 2,050 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is State Route 76 over LA Jolla Amago Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 36 ft wide.

Who owns State Route 76 over LA Jolla Amago Creek?

It is owned by the State Highway Agency.