Skip to content

San Bernardino Mountains · Caltrans and county roads

Winter Access in the San Bernardino Mountains

Before you drive, please check QuickMap and call 1-800-427-ROAD. Cyndi will help you picture the trip. Live plow times, chain levels, and commute minutes stay with the agencies that post them.

Paved mountain road in Running Springs with pine trees and a ski and snowboard rental shop
The main road through Running Springs.

How to check winter roads before you leave

Check Caltrans for the highway. Open Caltrans QuickMap, turn on chain-control information when you need it, and call 1-800-427-ROAD (1-800-427-7623). Then look at the specific driveway on mountain driveways and parking. A Christmas or Thanksgiving drive uses that same check. The weekend itself is on holidays in the mountains.

This hub is for all Rim towns. Local winter life stays on winter living in Running Springs, living in Lake Arrowhead, or winter living in Big Bear, or winter living in Crestline. Those pages keep local lifestyle. This page keeps the agencies. A family week in winter, including the house and the roads, is on mountain living for families. Cyndi Lamperts is a REALTOR® (DRE #02187485) with Mountain Top Producers Realty. Confirm her license on the DRE lookup.

  1. 1

    Check Caltrans before you leave

    Please use QuickMap (Caltrans QuickMap) and the Caltrans Highway Information Network at 1-800-427-ROAD (1-800-427-7623) before you leave. Chain controls and closures change with the storm.

  2. 2

    Carry traction devices that fit your tires

    Caltrans posts chain-control levels. Four-wheel drive still leaves a posted requirement in place. The rules are at Caltrans chain controls, and they are easier to read before you are halfway up.

  3. 3

    Separate highway, county road, and private road

    Caltrans maintains state highways. San Bernardino County snow information (county snow information) covers county-maintained roads. Private roads and driveways are usually cared for by the owner or the association.

  4. 4

    Leave a little room for the plow

    Cyndi leaves the timing with the storm. Storm size, equipment, trees, and stranded vehicles all change the day. The county’s current snow pages are the place to look. A listing remark is a different kind of note.

  5. 5

    Imagine January on a July showing

    Look at driveway, stairs, parking, roof, trees, drainage, and sunlight. Choose the house you will be glad to own in a storm, along with the one in the photograph.

Chain-control education: Caltrans chain controls. What to keep in the car, and the rest of the move-in advice, is on moving to the mountains. County plow and berm information: snowinfo.sbcounty.gov.

Who clears which snow

Snow on a mountain road is cleared by different people, depending on the street. State highways, county roads, city streets, and private lanes each have their own file. Cyndi wants that question asked while you are buying. The plow itself stays with the agency or the owner.

State highways

Caltrans. Please check QuickMap and 1-800-427-ROAD. Live chain levels stay on those two sources.

County-maintained roads

San Bernardino County Public Works or Special Districts, depending on the street. Please verify the address on county snow information. A mountain lane is worth a look before you count on a public plow.

City streets in Big Bear Lake

The City of Big Bear Lake maintains its own streets. Other properties people call Big Bear can sit in the county. Confirm who maintains the road for the exact address.

Private roads and driveways

HOA, road agreement, or the owner. It helps to ask before you buy. Driveway clearing is usually yours: shovel, blower, or a hired service.

Big Bear Lake cove, roadside, and mountain homes on a forested hillside.
A shoreline road on Big Bear Lake.

What a sunny showing can leave for January

When it is beautiful outside, picture January: driveway, stairs, parking, roof, trees, drainage, sunlight, and how you will carry groceries. There is not one snowfall number for the whole San Bernardino Mountains. Two houses on the same ridge can live differently because of shade and slope. A mapping-app drive time is a fair-weather guess, so please leave a little room for winter.

Vacant second homes still need heat and a pipe plan that belongs to that house. A copied internet checklist can miss the details . Supplies, outages, pipes, decks, and roofs are on winter and storm prep. If you are welcoming buyers while snow is on the ground, see selling a mountain home in winter. Insurance questions start at mountain home insurance and the California Department of Insurance. Orange County buyers can keep the lifestyle conversation on buying from Orange County.

Mountain winter access FAQ

Short, caring answers with the full official URLs. For town lifestyle, the living pages keep the local feel, including Running Springs winter.

How do I check mountain road conditions before driving up?

Please use Caltrans QuickMap at Caltrans QuickMap and call 1-800-427-ROAD (1-800-427-7623). For chain-control education see Caltrans chain controls. Live highway status stays with Caltrans. Cyndi Lamperts (DRE #02187485) can help you plan the trip. License lookup: DRE license lookup.

What is 1-800-427-ROAD?

It is the Caltrans Highway Information Network phone number, also written 1-800-427-7623. Caltrans describes it as voice-activated highway information, including chain controls.

Are chains required in the San Bernardino Mountains?

When Caltrans posts chain controls on a route, please follow that posting. Requirements change with the storm. A posted chain control can still apply to four-wheel or all-wheel drive. See Caltrans chain controls and current QuickMap layers.

How quickly are mountain roads plowed?

Please leave a little room in the day. County snow information explains priorities and that storm intensity changes timelines: county snow information. A guaranteed hour is a difficult thing to plan a purchase around.

Who plows residential streets?

It depends who maintains the road: Caltrans on state highways, the county or Special Districts on many unincorporated streets (county snow information), a city on incorporated streets, or a private arrangement. Ask during the transaction.

Do I need four-wheel drive to live in the mountains?

Many households do well with the vehicle they already have, and traction still matters. Four-wheel drive still leaves ice to respect. The kinder test is whether you can reach that driveway, park, and get groceries in with the vehicle you will actually own, after checking Caltrans.

Should I view a mountain home in winter?

Winter can show how the house lives with snow and the driveway. Come dressed for the conditions and check the roads before you leave. A summer showing still needs a little January imagination. Some showing mornings will ask you to wait for safer roads.

What about power, pipes, and second homes in a storm?

Heat, plumbing, and generators are property-specific. Generators belong outdoors, never in a garage or living space, because of carbon monoxide. Each house needs its own winterizing plan. House prep for supplies, outages, pipes, decks, and roofs is winter storm prep. A qualified professional can guide you on that house. Insurance questions: mountain home insurance and California Department of Insurance.

Plan the trip and the driveway together

Share the address and when you hope to look. Cyndi can help you think about access, and the highway stays with Caltrans.

“Live Where Others Vacation”

Check the Roads, Then Walk the Lot

QuickMap and 1-800-427-ROAD first, so you know the roads before you go. Then walk the driveway with Cyndi as if it were January.