US Bridges

State Route 127 over Interstate 15

Fair

San Bernardino County, California · 08-SBD-127-L0.01 · Structure no. 54 0610

Built
1965
60 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
243 ft
4 main spans
Daily traffic
6,800
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 127 over Interstate 15 is a steel stringer/multi-beam or girder carrying State Route 127 over Interstate 15 in San Bernardino County, California. It was built in 1965, so it is 60 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 6,800 vehicles a day, roughly 12% of them trucks, projected to reach 10,236 by 2045. The structure is 243 ft (74.1 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesState Route 127
CrossesInterstate 15
Location08-SBD-127-L0.01
RouteState Highway 127
CountySan Bernardino County
StateCalifornia
Coordinates35.26317, -116.0729
Functional classRural Principal Arterial - Other

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 inspectionDecember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span87 ft (26.5 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2016)
Projected traffic10,236 by 2045
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 State Route 127 over Interstate 15 built?

It was built in 1965, making it 60 years old in 2025.

What condition is State Route 127 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 December 2023.

How much traffic does State Route 127 over Interstate 15 carry?

About 6,800 vehicles per day (2016 count), of which roughly 12% are trucks.

How long is State Route 127 over Interstate 15?

The structure is 243 ft (74.1 m) long with a longest span of 87 ft (26.5 m) and a deck 34 ft wide.

Who owns State Route 127 over Interstate 15?

It is owned by the State Highway Agency.