US Bridges

Prospect Ave over Forester Creek

Fair

San Diego County, California · 0.1MI W/O Cuyamaca ST · Structure no. 57C0533

Built
1970
55 years old, rebuilt 1987
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete Continuous
Length
118 ft
3 main spans
Daily traffic
21,891
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prospect Ave over Forester Creek is a concrete continuous tee beam carrying Prospect Ave over Forester Creek in San Diego County, California. It was built in 1970 and reconstructed in 1987, so it is 55 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 21,891 vehicles a day, roughly 6% of them trucks, projected to reach 26,235 by 2042. The structure is 118 ft (36 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesProspect Ave
CrossesForester Creek
Location0.1MI W/O Cuyamaca ST
RouteCity Street 0
Coordinates32.83138, -116.9859
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length118 ft (36 m)
Longest span46 ft (14 m)
Deck width78 ft (23.8 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,891 (2016)
Projected traffic26,235 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Prospect Ave over Forester Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1987.

What condition is Prospect Ave over Forester Creek 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 March 2024.

How much traffic does Prospect Ave over Forester Creek carry?

About 21,891 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is Prospect Ave over Forester Creek?

The structure is 118 ft (36 m) long with a longest span of 46 ft (14 m) and a deck 78 ft wide.

Who owns Prospect Ave over Forester Creek?

It is owned by the City or Municipal Highway Agency.