US Bridges

Interstate 15 NB over Ghost Town Road

Fair

San Bernardino County, California · 08-SBD-015-R81.83 · Structure no. 54 0627R

Built
1963
62 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
134 ft
3 main spans
Daily traffic
28,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 NB over Ghost Town Road is a concrete continuous box beam or girders - single or spread carrying Interstate 15 NB over Ghost Town Road 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 28,000 vehicles a day, roughly 20% of them trucks, projected to reach 29,400 by 2043. The structure is 134 ft (40.8 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesInterstate 15 NB
CrossesGhost Town Road
Location08-SBD-015-R81.83
RouteInterstate 15
CountySan Bernardino County
StateCalifornia
Coordinates34.90238, -116.88692
Functional classRural 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 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating35.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span76 ft (23.2 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,000 (2021)
Projected traffic29,400 by 2043
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Interstate 15 NB over Ghost Town Road built?

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

What condition is Interstate 15 NB over Ghost Town Road 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 Interstate 15 NB over Ghost Town Road carry?

About 28,000 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Interstate 15 NB over Ghost Town Road?

The structure is 134 ft (40.8 m) long with a longest span of 76 ft (23.2 m) and a deck 42 ft wide.

Who owns Interstate 15 NB over Ghost Town Road?

It is owned by the State Highway Agency.