US Bridges

Route 125 NB over San Miguel Creek

Fair

San Diego County, California · 11-SD-125-6.80 · Structure no. 57 1198R

Built
2007
18 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
215 ft
1 main span
Daily traffic
34,000
2022 count
Owner
State
State Highway Agency

About this bridge

Route 125 NB over San Miguel Creek is a prestressed concrete box beam or girders - multiple carrying Route 125 NB over San Miguel Creek in San Diego County, California. It was built in 2007, so it is 18 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 34,000 vehicles a day, roughly 1% of them trucks, projected to reach 35,000 by 2041. The structure is 215 ft (65.4 m) long and 41 ft wide.

CarriesRoute 125 NB
CrossesSan Miguel Creek
Location11-SD-125-6.80
RouteState Highway 125
Coordinates32.68099, -116.98814
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length215 ft (65.4 m)
Longest span215 ft (65.4 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,000 (2022)
Projected traffic35,000 by 2041
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 NB over San Miguel Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Route 125 NB over San Miguel Creek 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 May 2024.

How much traffic does Route 125 NB over San Miguel Creek carry?

About 34,000 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 125 NB over San Miguel Creek?

The structure is 215 ft (65.4 m) long with a longest span of 215 ft (65.4 m) and a deck 41 ft wide.

Who owns Route 125 NB over San Miguel Creek?

It is owned by the State Highway Agency.