US Bridges

Greenfield Drive over SR-67 Magnolia Graves

Fair

San Diego County, California · 11-SD-067-R0.71 · Structure no. 57 0772

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
421 ft
4 main spans
Daily traffic
16,100
2018 count
Owner
State
State Highway Agency

About this bridge

Greenfield Drive over SR-67 Magnolia Graves is a concrete continuous box beam or girders - multiple carrying Greenfield Drive over SR-67 Magnolia Graves in San Diego County, California. It was built in 1971, so it is 54 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 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 16,100 vehicles a day, roughly 4% of them trucks, projected to reach 18,485 by 2045. The structure is 421 ft (128.3 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGreenfield Drive
CrossesSR-67 Magnolia Graves
Location11-SD-067-R0.71
RouteCity Street 0S282
CountySan Diego County
StateCalifornia
Coordinates32.81326, -116.96261
Functional classUrban Collector

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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length421 ft (128.3 m)
Longest span125 ft (38.1 m)
Deck width51 ft (15.5 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,100 (2018)
Projected traffic18,485 by 2045
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-67 Magnolia Graves built?

It was built in 1971, making it 54 years old in 2025.

What condition is Greenfield Drive over SR-67 Magnolia Graves 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 August 2024.

How much traffic does Greenfield Drive over SR-67 Magnolia Graves carry?

About 16,100 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Greenfield Drive over SR-67 Magnolia Graves?

The structure is 421 ft (128.3 m) long with a longest span of 125 ft (38.1 m) and a deck 51 ft wide.

Who owns Greenfield Drive over SR-67 Magnolia Graves?

It is owned by the State Highway Agency.