US Bridges

Interstate 10 WB over Route 177

Good

Riverside County, California · 08-RIV-010-R105.09 · Structure no. 56 0577L

Built
1967
58 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
23,000
2016 count
Owner
State
State Highway Agency

About this bridge

Interstate 10 WB over Route 177 is a concrete continuous tee beam carrying Interstate 10 WB over Route 177 in Riverside 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 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 23,000 vehicles a day, roughly 40% of them trucks, projected to reach 39,073 by 2042. The structure is 98 ft (29.9 m) long and 41 ft wide.

CarriesInterstate 10 WB
CrossesRoute 177
Location08-RIV-010-R105.09
RouteInterstate 10
Coordinates33.71064, -115.40045
Functional classRural Principal Arterial - Interstate

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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span44 ft (13.4 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2016)
Projected traffic39,073 by 2042
Trucks40%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 10 WB over Route 177 built?

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

What condition is Interstate 10 WB over Route 177 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 Interstate 10 WB over Route 177 carry?

About 23,000 vehicles per day (2016 count), of which roughly 40% are trucks.

How long is Interstate 10 WB over Route 177?

The structure is 98 ft (29.9 m) long with a longest span of 44 ft (13.4 m) and a deck 41 ft wide.

Who owns Interstate 10 WB over Route 177?

It is owned by the State Highway Agency.