US Bridges

Calico Road over Interstate 15

Fair

San Bernardino County, California · 08-SBD-015-R84.64 · Structure no. 54 0628

Built
1963
62 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
224 ft
4 main spans
Daily traffic
185
2019 count
Owner
State
State Highway Agency

About this bridge

Calico Road over Interstate 15 is a concrete continuous box beam or girders - single or spread carrying Calico Road over Interstate 15 in San Bernardino County, California. It was built in 1963, so it is 62 years old, older 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 185 vehicles a day, roughly 11% of them trucks, projected to reach 256 by 2041. The structure is 224 ft (68.3 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCalico Road
CrossesInterstate 15
Location08-SBD-015-R84.64
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates34.90955, -116.83852
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length224 ft (68.3 m)
Longest span77 ft (23.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2019)
Projected traffic256 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Calico Road over Interstate 15 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Calico Road over Interstate 15 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 September 2023.

How much traffic does Calico Road over Interstate 15 carry?

About 185 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Calico Road over Interstate 15?

The structure is 224 ft (68.3 m) long with a longest span of 77 ft (23.5 m) and a deck 43 ft wide.

Who owns Calico Road over Interstate 15?

It is owned by the State Highway Agency.