US Bridges

Old HWY 80 over Horse Creek

Good

San Diego County, California · 1 MI W/O Carrizo Gorge · Structure no. 57C0229

Built
1932
93 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
727
2023 count
Owner
County
County Highway Agency

About this bridge

Old HWY 80 over Horse Creek is a concrete continuous culvert carrying Old HWY 80 over Horse Creek in San Diego County, California. It was built in 1932, so it is 93 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 727 vehicles a day, roughly 1% of them trucks, projected to reach 766 by 2045. The structure is 27 ft (8.2 m) long and 38 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesOld HWY 80
CrossesHorse Creek
Location1 MI W/O Carrizo Gorge
RouteCounty Highway 0
Coordinates32.61755, -116.17425
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic727 (2023)
Projected traffic766 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 80 over Horse Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Old HWY 80 over Horse 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 January 2025.

How much traffic does Old HWY 80 over Horse Creek carry?

About 727 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Old HWY 80 over Horse Creek?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 38 ft wide.

Who owns Old HWY 80 over Horse Creek?

It is owned by the County Highway Agency.