US Bridges

Maple Street over Route 91

Good

Riverside County, California · 08-RIV-091-4.16-COR · Structure no. 56 0869

Built
2017
8 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
307 ft
2 main spans
Daily traffic
28,500
2015 count
Owner
State
State Highway Agency

About this bridge

Maple Street over Route 91 is a prestressed concrete continuous box beam or girders - multiple carrying Maple Street over Route 91 in Riverside County, California. It was built in 2017, so it is 8 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 28,500 vehicles a day, roughly 5% of them trucks, projected to reach 35,831 by 2043. The structure is 307 ft (93.6 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMaple Street
CrossesRoute 91
Location08-RIV-091-4.16-COR
RouteCity Street 0R097
Coordinates33.88063, -117.60368
Functional classUrban Minor Arterial

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length307 ft (93.6 m)
Longest span160 ft (48.7 m)
Deck width78 ft (23.9 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,500 (2015)
Projected traffic35,831 by 2043
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 Maple Street over Route 91 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Maple Street over Route 91 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 February 2025.

How much traffic does Maple Street over Route 91 carry?

About 28,500 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Maple Street over Route 91?

The structure is 307 ft (93.6 m) long with a longest span of 160 ft (48.7 m) and a deck 78 ft wide.

Who owns Maple Street over Route 91?

It is owned by the State Highway Agency.