US Bridges

State Route 76 over San Luis Rey River

Good

San Diego County, California · 11-SD-076-47.08 · Structure no. 57 0171

Built
1955
70 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
211 ft
3 main spans
Daily traffic
2,050
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 76 over San Luis Rey River is a steel stringer/multi-beam or girder carrying State Route 76 over San Luis Rey River in San Diego County, California. It was built in 1955, so it is 70 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 211 ft (64.3 m) long and 33 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesState Route 76
CrossesSan Luis Rey River
Location11-SD-076-47.08
RouteState Highway 76
Coordinates33.24362, -116.77949
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 rating78.3 US tons
Inventory rating46.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length211 ft (64.3 m)
Longest span85 ft (25.9 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.6 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 San Luis Rey River built?

It was built in 1955, making it 70 years old in 2025.

What condition is State Route 76 over San Luis Rey River 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 2024.

How much traffic does State Route 76 over San Luis Rey River carry?

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

How long is State Route 76 over San Luis Rey River?

The structure is 211 ft (64.3 m) long with a longest span of 85 ft (25.9 m) and a deck 33 ft wide.

Who owns State Route 76 over San Luis Rey River?

It is owned by the State Highway Agency.