US Bridges

W10-S15 Connector over I 10 I 15 & Conns

Fair

San Bernardino County, California · 08-SBD-010-9.98-ONT · Structure no. 54 0914F

Built
1975
50 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,350 ft
3 main spans
Daily traffic
29,000
2020 count
Owner
State
State Highway Agency

About this bridge

W10-S15 Connector over I 10 I 15 & Conns is a prestressed concrete continuous box beam or girders - multiple carrying W10-S15 Connector over I 10 I 15 & Conns in San Bernardino County, California. It was built in 1975, so it is 50 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 5 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 29,000 vehicles a day, roughly 10% of them trucks, projected to reach 36,000 by 2042. The structure is 1,350 ft (411.5 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesW10-S15 Connector
CrossesI 10 I 15 & Conns
Location08-SBD-010-9.98-ONT
RouteInterstate 10
CountySan Bernardino County
StateCalifornia
Coordinates34.06534, -117.54568
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHS 20 + Mod
Structure length1,350 ft (411.5 m)
Longest span249 ft (75.9 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic29,000 (2020)
Projected traffic36,000 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 W10-S15 Connector over I 10 I 15 & Conns built?

It was built in 1975, making it 50 years old in 2025.

What condition is W10-S15 Connector over I 10 I 15 & Conns 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 2023.

How much traffic does W10-S15 Connector over I 10 I 15 & Conns carry?

About 29,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is W10-S15 Connector over I 10 I 15 & Conns?

The structure is 1,350 ft (411.5 m) long with a longest span of 249 ft (75.9 m) and a deck 38 ft wide.

Who owns W10-S15 Connector over I 10 I 15 & Conns?

It is owned by the State Highway Agency.