US Bridges

Crest Drive over Telegraph Canyon Channel

Fair

San Diego County, California · 20 Ft N/O Telegraph Cyn · Structure no. 57C0499

Built
1979
46 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
2,950
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Crest Drive over Telegraph Canyon Channel is a concrete continuous culvert carrying Crest Drive over Telegraph Canyon Channel in San Diego County, California. It was built in 1979, so it is 46 years old, younger 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 2,950 vehicles a day, roughly 2% of them trucks, projected to reach 3,314 by 2047. The structure is 24 ft (7.3 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCrest Drive
CrossesTelegraph Canyon Channel
Location20 Ft N/O Telegraph Cyn
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.62813, -117.03661
Functional classUrban 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
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width72 ft (21.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2017)
Projected traffic3,314 by 2047
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Crest Drive over Telegraph Canyon Channel built?

It was built in 1979, making it 46 years old in 2025.

What condition is Crest Drive over Telegraph Canyon Channel 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 February 2025.

How much traffic does Crest Drive over Telegraph Canyon Channel carry?

About 2,950 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Crest Drive over Telegraph Canyon Channel?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 72 ft wide.

Who owns Crest Drive over Telegraph Canyon Channel?

It is owned by the City or Municipal Highway Agency.