US Bridges

Magnolia Avenue over Forester Creek Tributary

Good

San Diego County, California · Inersection of Vernon Wy · Structure no. 57C0741

Built
1978
47 years old, rebuilt 1991
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
13,231
2013 count
Owner
County
County Highway Agency

About this bridge

Magnolia Avenue over Forester Creek Tributary is a concrete continuous culvert carrying Magnolia Avenue over Forester Creek Tributary in San Diego County, California. It was built in 1978 and reconstructed in 1991, so it is 47 years old, younger 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 13,231 vehicles a day, roughly 2% of them trucks, projected to reach 14,358 by 2039. The structure is 33 ft (10 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMagnolia Avenue
CrossesForester Creek Tributary
LocationInersection of Vernon Wy
RouteCity Street 0
Coordinates32.81238, -116.96224
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
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
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10 m)
Longest span14 ft (4.2 m)
Deck width59 ft (18 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,231 (2013)
Projected traffic14,358 by 2039
Trucks2%
Lanes on structure2
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

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 Magnolia Avenue over Forester Creek Tributary built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1991.

What condition is Magnolia Avenue over Forester Creek Tributary 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 April 2022.

How much traffic does Magnolia Avenue over Forester Creek Tributary carry?

About 13,231 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Magnolia Avenue over Forester Creek Tributary?

The structure is 33 ft (10 m) long with a longest span of 14 ft (4.2 m) and a deck 59 ft wide.

Who owns Magnolia Avenue over Forester Creek Tributary?

It is owned by the County Highway Agency.