US Bridges

Greenfield Drive over Forester Creek

Good

San Diego County, California · 0.4 MI S/O I-8 · Structure no. 57C0743

Built
1986
39 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
19,153
2021 count
Owner
County
County Highway Agency

About this bridge

Greenfield Drive over Forester Creek is a concrete continuous culvert carrying Greenfield Drive over Forester Creek in San Diego County, California. It was built in 1986, so it is 39 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 19,153 vehicles a day, roughly 3% of them trucks, projected to reach 21,635 by 2043. The structure is 21 ft (6.4 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesGreenfield Drive
CrossesForester Creek
Location0.4 MI S/O I-8
RouteCity Street 0
Coordinates32.80802, -116.9116
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 protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2021
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 adequacy8: Equal 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 loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width52 ft (16 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,153 (2021)
Projected traffic21,635 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 Greenfield Drive over Forester Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Greenfield Drive over Forester 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 September 2021.

How much traffic does Greenfield Drive over Forester Creek carry?

About 19,153 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Greenfield Drive over Forester Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Greenfield Drive over Forester Creek?

It is owned by the County Highway Agency.