US Bridges

Route 125 Northbou over Otay Mesa Road

Good

San Diego County, California · 11-SD-125-L0.73R · Structure no. 57 1202R

Built
2016
9 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
193 ft
1 main span
Daily traffic
5,550
2022 count
Owner
State
State Highway Agency

About this bridge

Route 125 Northbou over Otay Mesa Road is a prestressed concrete box beam or girders - single or spread carrying Route 125 Northbou over Otay Mesa Road in San Diego County, California. It was built in 2016, so it is 9 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 5,550 vehicles a day, roughly 1% of them trucks, projected to reach 7,559 by 2041. The structure is 193 ft (58.8 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRoute 125 Northbou
CrossesOtay Mesa Road
Location11-SD-125-L0.73R
RouteState Highway 125
Coordinates32.56756, -116.9485
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionMay 2024
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 alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length193 ft (58.8 m)
Longest span193 ft (58.8 m)
Deck width54 ft (16.4 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,550 (2022)
Projected traffic7,559 by 2041
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

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 Route 125 Northbou over Otay Mesa Road built?

It was built in 2016, making it 9 years old in 2025.

What condition is Route 125 Northbou over Otay Mesa Road 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 May 2024.

How much traffic does Route 125 Northbou over Otay Mesa Road carry?

About 5,550 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 125 Northbou over Otay Mesa Road?

The structure is 193 ft (58.8 m) long with a longest span of 193 ft (58.8 m) and a deck 54 ft wide.

Who owns Route 125 Northbou over Otay Mesa Road?

It is owned by the State Highway Agency.