US Bridges

State Route 86S SB over Arriba Ditch

Fair

Riverside County, California · 08-RIV-086-R2.79 · Structure no. 56 0774L

Built
2001
24 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
153,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 86S SB over Arriba Ditch is a concrete continuous slab carrying State Route 86S SB over Arriba Ditch in Riverside County, California. It was built in 2001, so it is 24 years old, younger 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 153,000 vehicles a day, roughly 14% of them trucks, projected to reach 177,936 by 2045. The structure is 60 ft (18.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesState Route 86S SB
CrossesArriba Ditch
Location08-RIV-086-R2.79
RouteState Highway 86
CountyRiverside County
StateCalifornia
Coordinates33.4531, -116.08766
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span30 ft (9.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic153,000 (2020)
Projected traffic177,936 by 2045
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 86S SB over Arriba Ditch built?

It was built in 2001, making it 24 years old in 2025.

What condition is State Route 86S SB over Arriba Ditch 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 86S SB over Arriba Ditch carry?

About 153,000 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is State Route 86S SB over Arriba Ditch?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.2 m) and a deck 42 ft wide.

Who owns State Route 86S SB over Arriba Ditch?

It is owned by the State Highway Agency.