US Bridges

State Route 66 over UP RR

Fair

San Bernardino County, California · 08-SBD-066-20.83-SBD · Structure no. 54 0834

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
125 ft
5 main spans
Daily traffic
19,700
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 66 over UP RR is a concrete continuous slab carrying State Route 66 over UP RR in San Bernardino County, California. It was built in 1967, so it is 58 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 19,700 vehicles a day, roughly 3% of them trucks, projected to reach 36,000 by 2040. The structure is 125 ft (38.1 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesState Route 66
CrossesUP RR
Location08-SBD-066-20.83-SBD
RouteState Highway 66
CountySan Bernardino County
StateCalifornia
Coordinates34.10669, -117.34101
Functional classUrban Other Principal Arterial

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 inspectionNovember 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 rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span39 ft (11.9 m)
Deck width100 ft (30.5 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,700 (2017)
Projected traffic36,000 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
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 66 over UP RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is State Route 66 over UP RR 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 November 2023.

How much traffic does State Route 66 over UP RR carry?

About 19,700 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is State Route 66 over UP RR?

The structure is 125 ft (38.1 m) long with a longest span of 39 ft (11.9 m) and a deck 100 ft wide.

Who owns State Route 66 over UP RR?

It is owned by the State Highway Agency.