US Bridges

Route 91 over Brockton Avenue

Good

Riverside County, California · 08-RIV-091-17.43-RIV · Structure no. 56 0385

Built
1959
66 years old, rebuilt 2015
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
86 ft
1 main span
Daily traffic
168,000
2019 count
Owner
State
State Highway Agency

About this bridge

Route 91 over Brockton Avenue is a steel stringer/multi-beam or girder carrying Route 91 over Brockton Avenue in Riverside County, California. It was built in 1959 and reconstructed in 2015, so it is 66 years old, older 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 168,000 vehicles a day, roughly 5% of them trucks, projected to reach 235,195 by 2041. The structure is 86 ft (26.2 m) long and 156 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 91
CrossesBrockton Avenue
Location08-RIV-091-17.43-RIV
RouteState Highway 91
Coordinates33.94227, -117.39403
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 inspectionApril 2023
Inspection intervalevery 48 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 alignment9: Superior to present desirable criteria
Operating rating81 US tons
Inventory rating36.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span82 ft (25 m)
Deck width156 ft (47.6 m)
Roadway width151 ft (46.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168,000 (2019)
Projected traffic235,195 by 2041
Trucks5%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 Route 91 over Brockton Avenue built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2015.

What condition is Route 91 over Brockton 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 April 2023.

How much traffic does Route 91 over Brockton Avenue carry?

About 168,000 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Route 91 over Brockton Avenue?

The structure is 86 ft (26.2 m) long with a longest span of 82 ft (25 m) and a deck 156 ft wide.

Who owns Route 91 over Brockton Avenue?

It is owned by the State Highway Agency.