US Bridges

North Harbor DR over Navy Estuary

Fair

San Diego County, California · 0.75 MI E/O Rosecrans ST · Structure no. 57C0015

Built
1981
44 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
682 ft
3 main spans
Daily traffic
26,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Harbor DR over Navy Estuary is a prestressed concrete continuous stringer/multi-beam or girder carrying North Harbor DR over Navy Estuary in San Diego County, California. It was built in 1981, so it is 44 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 26,000 vehicles a day, roughly 1% of them trucks, projected to reach 37,533 by 2044. The structure is 682 ft (207.9 m) long and 115 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNorth Harbor DR
CrossesNavy Estuary
Location0.75 MI E/O Rosecrans ST
RouteCity Street 0
Coordinates32.72791, -117.21563
Functional classUrban Other Principal 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHS 20
Structure length682 ft (207.9 m)
Longest span130 ft (39.6 m)
Deck width115 ft (35.1 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2022)
Projected traffic37,533 by 2044
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was North Harbor DR over Navy Estuary built?

It was built in 1981, making it 44 years old in 2025.

What condition is North Harbor DR over Navy Estuary 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 April 2024.

How much traffic does North Harbor DR over Navy Estuary carry?

About 26,000 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is North Harbor DR over Navy Estuary?

The structure is 682 ft (207.9 m) long with a longest span of 130 ft (39.6 m) and a deck 115 ft wide.

Who owns North Harbor DR over Navy Estuary?

It is owned by the City or Municipal Highway Agency.