US Bridges

N15-S215 Conn over Cajon Creek / Cajon Blvd

Good

San Bernardino County, California · 08-SBD-015-16.07 · Structure no. 54 1311G

Built
2016
9 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
528 ft
6 main spans
Daily traffic
1,001
2016 count
Owner
State
State Highway Agency

About this bridge

N15-S215 Conn over Cajon Creek / Cajon Blvd is a prestressed concrete continuous stringer/multi-beam or girder carrying N15-S215 Conn over Cajon Creek / Cajon Blvd in San Bernardino 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 1,001 vehicles a day, roughly 14% of them trucks, projected to reach 2,002 by 2042. The structure is 528 ft (160.9 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesN15-S215 Conn
CrossesCajon Creek / Cajon Blvd
Location08-SBD-015-16.07
RouteInterstate 15
Coordinates34.22047, -117.40971
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length528 ft (160.9 m)
Longest span125 ft (38.2 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deck20 ft (6.2 m)

Traffic and service

Average daily traffic1,001 (2016)
Projected traffic2,002 by 2042
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed5 mi (8 km)
TollToll bridge
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 N15-S215 Conn over Cajon Creek / Cajon Blvd built?

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

What condition is N15-S215 Conn over Cajon Creek / Cajon Blvd 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 January 2025.

How much traffic does N15-S215 Conn over Cajon Creek / Cajon Blvd carry?

About 1,001 vehicles per day (2016 count), of which roughly 14% are trucks.

How long is N15-S215 Conn over Cajon Creek / Cajon Blvd?

The structure is 528 ft (160.9 m) long with a longest span of 125 ft (38.2 m) and a deck 42 ft wide.

Who owns N15-S215 Conn over Cajon Creek / Cajon Blvd?

It is owned by the State Highway Agency.