Getting Around
BART, trails, driving, and navigating Lamorinda — including Caldecott Tunnel patterns, BART parking, and the Lafayette-Moraga Trail.
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Lamorinda is car-oriented but more connected than most East Bay suburbs. Two BART stations, excellent regional trails, and easy freeway access make getting around manageable.
BART
Two stations serve Lamorinda:
- Lafayette Station — Downtown adjacent, good parking
- Orinda Station — Theatre Square nearby, first stop east of tunnel
Both are on the Antioch (Yellow) line. About 25 minutes to downtown San Francisco.
Pro tip: Parking fills up on weekdays. Arrive early or consider drop-off/pickup.
Driving
The Caldecott Tunnel
Your gateway to Lamorinda from the west. Four bores carry Highway 24 through the hills. The fourth bore opened in 2013, adding much-needed capacity and finally eliminating the old reversible-middle-bore system. See our full Caldecott Tunnel guide for history, traffic patterns, bore-by-bore quirks, alternate routes, and what to do when it closes.
Local lore: The tunnel is named for Thomas E. Caldecott (1878–1951), former mayor of Berkeley, Alameda County Supervisor, and president of the Joint Highway District that built the first two bores. Bores 1 and 2 opened in 1937, the third bore in 1964, and the fourth bore in 2013. Each expansion was controversial at the time — residents worried about increased traffic and development — but today the four-bore tunnel is simply how Bay Area life works. Roughly 170,000–180,000 vehicles pass through daily.
Traffic patterns:
- Morning: Heavy westbound (toward SF)
- Evening: Heavy eastbound (toward Lamorinda)
- Weekends: Generally smooth both directions
Key Routes
- Highway 24: Main artery, connects to I-680 and I-580
- Mt. Diablo Blvd: Lafayette’s main street
- Moraga Way: Connects Lafayette to Moraga
- Camino Pablo: North-south through Orinda
Trails (Non-Car Options)
- Lafayette-Moraga Trail — 7.6 miles, paved, connects the towns
- Connects to: BART stations, regional parks, downtown areas
For committed cyclists, it’s possible to bike-commute from Moraga to BART in Lafayette or Orinda.
Seasonal Note: Early Summer 2026 (Late May through Mid-June)
Memorial Day is behind us. School runs through about June 11 in most Lamorinda districts. The next three weeks are the interstitial window — commute patterns are still in school-year rhythm, but graduation traffic, end-of-year events, and the start of camp season are all reshaping the roads. (See: The Tuesday After Memorial Day.)
BART weekday commute is back to normal — but lighter than peak. Wednesday May 27 onward, both Lafayette and Orinda lots return to standard weekday pressure: full by about 8:15am Lafayette, 8:30am Orinda. Pressure starts to ease again the week of June 8 as schools wind down and more commuters telework or take time off; by mid-June, midday parking is comfortable. Antioch-line trains run on standard weekday schedule; about 25 minutes Lafayette → Montgomery, 22 minutes Orinda → Montgomery.
Graduation weekend (May 30–31) traffic. Saturday May 30 is the biggest graduation party weekend of the year in the Acalanes Union High School District. Expect concentrated neighborhood traffic in the afternoons and evenings — caterers, rental delivery trucks, out-of-town relatives navigating with GPS that doesn’t know about Burton Valley’s one-lane stretches. Streets near Acalanes High, Miramonte, and Campolindo see slow rolling congestion between 2–8pm Saturday. The Lafayette-Moraga Trail and side streets parallel to Mt. Diablo Boulevard remain the quietest routes.
The last two weeks of school — pickup chaos peaks. From May 27 through dismissal, school zones run at maximum congestion as end-of-year events, field days, half-days, and minimum days shift pickup times unpredictably. Mt. Diablo Boulevard near Lafayette Elementary and Stanley Middle School backs up between 12:30–1:30pm on minimum days. Moraga Road around Joaquin Moraga Intermediate is similar. Pro tip: Check the school calendar before any midday errand — a minimum day you didn’t know about can add fifteen minutes to a Trader Joe’s run.
Caldecott Tunnel — early-summer pattern. Through June 11, weekday eastbound 24 peaks 4:30–6:30pm and westbound peaks 7–9am — standard school-year rhythm. Once school dismisses, weekday peaks soften by roughly 20% as commute volume drops with vacation and remote-work upticks. Weekend tunnel traffic is light in both directions through mid-June; the heavier summer weekend patterns kick in around the Fourth of July and again Labor Day.
Trail conditions — peak shoulder season. Wildflower season is mostly done but the hills are at their gold-and-green best through about mid-June, when the gold takes over completely. Sunset hits 8:28pm by the end of May and 8:36pm by mid-June, so after-work trail traffic now runs heavy until almost 8:30pm — particularly the Lafayette Reservoir Rim Trail and the Lafayette-Moraga Trail between 5 and 7pm. Saturday morning Reservoir parking still fills by 9:30am; weekday mornings (Tue–Thu) and late afternoons remain the calmest windows. Tick activity is high — check after every hike.
Saint Mary’s College summer — quieter Moraga. With commencement past (May 23) and undergraduate summer session starting limited capacity, Moraga Road and St. Mary’s Road run noticeably calmer through August. The Soda Aquatic Center is the main draw on campus this time of year; parking is easy and the access road is fast. Through traffic to Lamorinda Crossroads is faster on weekends than at any other point in the year.
The Reality
Most people drive. The towns are hilly, sprawling, and parking is easy. But for recreation, exercise, and occasional errands, the trails and BART make car-free trips possible.
Key Distances
- Lafayette to Moraga: ~4 miles
- Lafayette to Orinda: ~3 miles
- Lafayette BART to SF (Montgomery): ~25 minutes
- Caldecott Tunnel to downtown Oakland: ~10 minutes