US Bridges

N. County Fair Dar over None

Good

San Diego County, California · 11-SD-015-M27.20-SD · Structure no. 57 1199

Built
2009
16 years old
Condition
Good
inspected November 2021
Type
Slab
Concrete
Length
53 ft
1 main span
Daily traffic
5,600
2019 count
Owner
State
State Highway Agency

About this bridge

N. County Fair Dar over None is a concrete slab carrying N. County Fair Dar over None in San Diego County, California. It was built in 2009, so it is 16 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 5,600 vehicles a day, roughly 1% of them trucks, projected to reach 7,855 by 2040. The structure is 53 ft (16.3 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesN. County Fair Dar
CrossesNone
Location11-SD-015-M27.20-SD
RouteInterstate 15
CountySan Diego County
StateCalifornia
Coordinates33.07387, -117.07002
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length53 ft (16.3 m)
Longest span53 ft (16.3 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2019)
Projected traffic7,855 by 2040
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 N. County Fair Dar over None built?

It was built in 2009, making it 16 years old in 2025.

What condition is N. County Fair Dar over None 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 November 2021.

How much traffic does N. County Fair Dar over None carry?

About 5,600 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is N. County Fair Dar over None?

The structure is 53 ft (16.3 m) long with a longest span of 53 ft (16.3 m) and a deck 54 ft wide.

Who owns N. County Fair Dar over None?

It is owned by the State Highway Agency.