
Tri Delta Transit provides public transportation in Eastern Contra Costa County, California. To receive alerts, go to @tdtransitalerts. See you on the bus!
East Contra Costa County, CA
Joined May 2010
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Tri Delta Transit retweeted
Upgrade your account to the Next-Generation Clipper System today!
Step 1:
📱 Registered cards: Log into your account online or via the Clipper app—that’s it!
☎️ Unregistered cards: Call the Clipper Customer Service Center at 877.878.8883 and talk to a customer service representative
Step 2: Simply tap your plastic or mobile Clipper card to a Clipper reader the next day to complete the upgrade and get access to:
✅ Free and discounted transfers
✅ Frequent-rider maximums where available
✅ Instant value on Clipper cards
✅ Ability to manage others’ cards
Learn more at clippercard.com/enhanced-fea…
Clipper Outage: Sunday (3/22) from midnight to 7am, Clipper website, mobile & retail services will be unavailable. Mobile Clipper cards will not work during this period. Instead, use contactless bank cards and plastic Clipper cards to pay fares. More: 511cc.org/mar22outage

ALT Photo of person holding smartphone with mobile Clipper card visible on screen against the Clipper reader in a BART fare gate. Text reads: Planned Clipper Mobile Outage: Sunday, March 22, midnight to 7am. On Sunday morning, transit riders are advised to use plastic Clipper cards or contactless bank cards to pay their fares.
Tri Delta Transit retweeted
New Year's Day – Thursday, Jan. 1 – is a Spare the Air Day. Take any form of transit serving Contra Costa on Thursday and log your trip with Big Win on Transit to grab an $8 Starbucks gift card, while supplies last. Learn more: 511cc.org/bigwin/#newyears
Tri Delta Transit retweeted
ANTIOCH BRIDGE CLOSED THIS WEEKEND: Due to emergency sinkhole repairs, the Antioch Bridge will be closed through 5am Monday morning. Plan travel accordingly. @AntiochCAgov @AntiochChamber @CCTA
Tri Delta Transit retweeted
If you're headed to Pawstoberfest or Pittsburg's Halloween Spooktacular, take transit. Tri Delta Transit (TDT) gets you to both events:
• Halloween Spooktacular: TDT Rt 371 - Event info: 511cc.org/spooktacular2025
• Pawstoberfest: TDT Rt 373 - Event info: 511cc.org/paws2025
Tri Delta Transit retweeted
CCTA is updating the Countywide Transportation Plan & wants your input – you could win a $100 gift card. No matter how you get around, you can shape safer, more connected, and more efficient travel.
Explore the Open House and take the survey: openhouse.ccta.net
Tri Delta Transit retweeted
PITTSBURG & BAY POINT RESIDENTS: Air pollution monitoring is coming your way. Weigh in on WHERE it should happen.
Attend an Air Pollution Concerns Community Meeting in person *or* online TUESDAY, Apr. 15, from 6-8pm. REGISTER: events.humanitix.com/smmi-hy…
Tri Delta Transit retweeted
Starting next Monday, BART to Antioch train times will shift by several minutes to improve the connection with BART at the Pittsburg transfer.
We are lengthening the window of time for BART train to connect to the BART to Antioch DMU train to improve transfer reliability.
Tri Delta Transit retweeted
Yesterday we wrapped up a town hall on reducing commute times and supporting working families. Thanks to all who joined us at the Antioch Community Center for their thoughtful questions and to our panelists from @CCTA & @TriDeltaTransit for sharing their expertise.
Tri Delta Transit retweeted
FREE BUS PASSES FOR STUDENTS: #Pass2Classapplications are now open. Request up to 2 months of free rides for your student on County Connection, WestCAT, AC Transit, or @TriDeltaTransit. Available while supplies last. Apply now!🔗⬇️
@cccta @wccta @rideact
511cc.org/pass2class
Tri Delta Transit retweeted
PASES DE AUTOBÚS GRATIS PARA ESTUDIANTES: Reclama hasta dos meses de viaje gratis con #Pass2Class. Pases disponibles para County Connection, WestCAT, AC Transit o @TriDeltaTransit, hasta agotar existencias. ¡Aplica ya! Visite 511cc.org/pass2class.
Tri Delta Transit retweeted
Calling all transit riders! How can bus connections be smoother in Contra Costa County? @CCTA’s Integrated Transit Plan will help you better connect to all major activity centers & regional hubs in Contra Costa. Take the survey and win a $100 Clipper card! ccta.net/itp-survey
Tri Delta Transit retweeted
FREE PARATRANSIT: ADA-eligible riders from extremely low-income households can apply for free paratransit rides from Tri Delta Transit, WestCAT & County Connection. Links:
@trideltatransit: 511cc.org/LIFETriDeltaTransi…
@wccta: 511cc.org/LIFEWestCAT
@cccta: 511cc.org/LIFECountyConnecti…
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Tri Delta Transit retweeted
UNLIMITED BUS RIDES STARTING NOW: The moment you receive your $30 Summer Youth Pass it's good for unlimited local & express bus rides through August. Visit 511contracosta.org/youthpass.
It’s summer and the Summer Youth Pass is here! Now through August 2024, one payment of $30 gets youth (6-18) unlimited rides on County Connection, Tri Delta Transit, and WestCAT. Available now. For more info, visit: 511contracosta.org/youthpass…
Tri Delta Transit retweeted
SUMMER YOUTH PASS – ON SALE: Help your child get around with a #SummerYouthPass!
For youth ages 6-18, get unlimited rides Jun.-Aug. on local & express @trideltatransit, WestCAT (@wccta) & County Connection (@cccta) buses for just $30. Get yours now! 🔗⬇️
511cc.org/youthpass
Tri Delta Transit retweeted
Learn how #ContraCostaCounty's transit agencies plan for the future! @tthaile discusses how transit supports social/economic development with Christy Wegener, @TriDeltaTransit's @BarnesRashidi, @WCCTA's Rob Thompson, & @cccta's Bill Churchill. Pt. 2 here! ccta.net/about-us/on-the-pat…
Tri Delta Transit retweeted
How do #ContraCostaCounty transit agencies work together to improve service? Hear about it from
#CCTA ED @tthaile as chats with LAVTA ED Christy Wegener, @TriDeltaTransit CEO @BarnesRashidi, @WCCTA GM Rob Thompson, and @cccta GM Bill Churchill. ow.ly/uRY650RovL4 Pt. 1/2!
Tri Delta Transit retweeted
Two @TriDeltaTransit buses are now serving as a bus bridge between Antioch, Pittsburg Center and Pittsburg/Bay Point Stations as we work to restore train service between the 3 stations. No delays on rest of system.
Tri Delta Transit retweeted
FREE 20-RIDE PASS: Final day for Contra Costa commuters to request a free 20-Ride Pass good on @TriDeltaTransit. Especially useful for those who live or work in Pittsburg, Antioch, Brentwood, or Oakley. Take transit & help @sparetheair. Learn more & apply: 511cc.org/leap



























