US Bridges

Vehicle Road over Boone Drive

Fair

San Diego County, California · Naval Medical Center · Structure no. 1CA0095

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
199 ft
5 main spans
Daily traffic
100
2015 count
Owner
Federal
Navy / Marines

About this bridge

Vehicle Road over Boone Drive is a concrete continuous stringer/multi-beam or girder carrying Vehicle Road over Boone Drive in San Diego County, California. It was built in 1985, so it is 40 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 100 vehicles a day, roughly 20% of them trucks, projected to reach 100 by 2042. The structure is 199 ft (60.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesVehicle Road
CrossesBoone Drive
LocationNaval Medical Center
CountySan Diego County
StateCalifornia
Coordinates32.72665, -117.14682
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89.6 US tons
Inventory rating53.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length199 ft (60.8 m)
Longest span62 ft (18.9 m)
Deck width35 ft (10.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2015)
Projected traffic100 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNavy / Marines
Maintained byNavy / Marines
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$19,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Vehicle Road over Boone Drive built?

It was built in 1985, making it 40 years old in 2025.

What condition is Vehicle Road over Boone Drive 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 June 2023.

How much traffic does Vehicle Road over Boone Drive carry?

About 100 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is Vehicle Road over Boone Drive?

The structure is 199 ft (60.8 m) long with a longest span of 62 ft (18.9 m) and a deck 35 ft wide.

Who owns Vehicle Road over Boone Drive?

It is owned by the Navy / Marines.