US Bridges

N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc

Good

San Bernardino County, California · 08-SBD-015-43.48-VCTV · Structure no. 54 0484G

Built
2020
5 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
380 ft
6 main spans
Daily traffic
1,001
2020 count
Owner
State
State Highway Agency

About this bridge

N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc is a concrete continuous stringer/multi-beam or girder carrying N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc in San Bernardino County, California. It was built in 2020, so it is 5 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 5% of them trucks, projected to reach 3,000 by 2042. The structure is 380 ft (115.8 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN15 Conn from SR18
CrossesBNSF RY UP RR AMTRAK Etc
Location08-SBD-015-43.48-VCTV
RouteInterstate 15
Coordinates34.545, -117.30061
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 inspectionMarch 2024
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadGreater than HL 93
Structure length380 ft (115.8 m)
Longest span107 ft (32.5 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,001 (2020)
Projected traffic3,000 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free 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 N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc built?

It was built in 2020, making it 5 years old in 2025.

What condition is N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc 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 March 2024.

How much traffic does N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc carry?

About 1,001 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc?

The structure is 380 ft (115.8 m) long with a longest span of 107 ft (32.5 m) and a deck 42 ft wide.

Who owns N15 Conn from SR18 over BNSF RY UP RR AMTRAK Etc?

It is owned by the State Highway Agency.