US Bridges

Mount Helix DR over Mount Helix DR

Fair

San Diego County, California · 0.36MI S/O Fuerte Drive · Structure no. 57C0376

Built
1934
91 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
859
2016 count
Owner
County
County Highway Agency

About this bridge

Mount Helix DR over Mount Helix DR is a steel stringer/multi-beam or girder carrying Mount Helix DR over Mount Helix DR in San Diego County, California. It was built in 1934, so it is 91 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 5 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 859 vehicles a day, roughly 2% of them trucks, projected to reach 962 by 2041. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

Location

Open in Google Maps
CarriesMount Helix DR
CrossesMount Helix DR
Location0.36MI S/O Fuerte Drive
RouteCounty Highway 0
CountySan Diego County
StateCalifornia
Coordinates32.76855, -116.9815
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic859 (2016)
Projected traffic962 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed61.5 mi (99 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mount Helix DR over Mount Helix DR built?

It was built in 1934, making it 91 years old in 2025.

What condition is Mount Helix DR over Mount Helix DR 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 Mount Helix DR over Mount Helix DR carry?

About 859 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Mount Helix DR over Mount Helix DR?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns Mount Helix DR over Mount Helix DR?

It is owned by the County Highway Agency.