US Bridges

State Highway 71 over Grand Avenue

Good

San Bernardino County, California · 08-SBD-071-R1.82-CHNH · Structure no. 54 1128

Built
1997
28 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
105,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Highway 71 over Grand Avenue is a prestressed concrete continuous box beam or girders - multiple carrying State Highway 71 over Grand Avenue in San Bernardino County, California. It was built in 1997, so it is 28 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 105,000 vehicles a day, roughly 10% of them trucks, projected to reach 122,420 by 2041. The structure is 240 ft (73 m) long and 170 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Highway 71
CrossesGrand Avenue
Location08-SBD-071-R1.82-CHNH
RouteState Highway 71
Coordinates34.00103, -117.72436
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length240 ft (73 m)
Longest span138 ft (42 m)
Deck width170 ft (51.7 m)
Roadway width164 ft (50.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105,000 (2020)
Projected traffic122,420 by 2041
Trucks10%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Highway 71 over Grand Avenue built?

It was built in 1997, making it 28 years old in 2025.

What condition is State Highway 71 over Grand Avenue in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does State Highway 71 over Grand Avenue carry?

About 105,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is State Highway 71 over Grand Avenue?

The structure is 240 ft (73 m) long with a longest span of 138 ft (42 m) and a deck 170 ft wide.

Who owns State Highway 71 over Grand Avenue?

It is owned by the State Highway Agency.