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Tri Delta Transit
@trideltatransit.bsky.social
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Tri Delta Transit provides public transportation in Eastern Contra Costa County, California. Visit us online at trideltatransit.com. See you on the bus!
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Tri Delta Transit and Bay Area Transit are celebrating the role public transit plays getting people to and from sporting and fan events.

We're encouraging riders to wear THEIR FAVORITE JERSEY and we're giving out goodies to the sports fans we see on our system.
Illustration of sports fans cheering outside a stadium. Text reads: Fan Day - Tuesday, February 3rd. Wear your favorite sports jersey on Tri Delta Transit for some free goodies (while supplies last and if marketing sees you).
January 26, 2026 at 5:49 PM
trideltatransit.bsky.social
RIDER ALERT:

Tri Delta Transit has a minor timetable change happening SUNDAY, JANUARY 11. Only Route 361 has changes. Printed schedules will be available on the buses the week of January 5th for your use. New schedules will also be available at trideltatransit.com shortly.
Minor timetable schedule change - effective Sunday, January 11. Timetable change for Route 361. Cover Art by contest winner Francesca Aujero, Freedom High School. Useful information and important numbers.
January 6, 2026 at 11:21 PM
Reposted by Tri Delta Transit
511cc.org
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/#newy... @sparetheair.bsky.social @ccta.net
Spare the Air - Big Win on Transit - Thursday, January 1 is a Spare the Air Day Take transit on Thursday, January 1 - get an $8 Starbucks gift card. Gift cards will be awarded to the first 100 valid entries submitted by Sunday, January 4. Visit 5 1 1 C C dot O R G slash big win. Sponsored by 5 1 1 Contra Costa, C C T A, and Bay Area Air District.
December 31, 2025 at 11:17 PM
trideltatransit.bsky.social
Tri Delta Transit will have weekend/holiday service on Wednesday, Dec. 24th, Thursday, Dec. 25th and Thursday, Jan 1st. for the Christmas and New Year's Holidays. Tri MyRide service will be limited. Friday, December 26th and Friday, January 2nd will be regular service. Happy Holidays.
December 18, 2025 at 2:03 AM
trideltatransit.bsky.social
Are you a Contra Costa County resident who has thoughts on how to make taking transit in the County more accessible? If you're an older adult or an individual with a disability, apply to serve on CCTA's new Accessible Advisory Committee: buff.ly/Un1VFi2
Photo of two seniors and one person in a wheelchair on a paratransit bus, along with the bus driver. Text reads: Your experience drives change. The Contra Costa Transportation Authority (CCTA) is forming a new Accessible Advisory Committee (AAC) and recruiting public transit riders to shape the future of mobility in Contra Costa County. We're seeking community members who live or work in Contra Costa County and have direct, current experience using local public transit.
December 5, 2025 at 10:37 PM
Reposted by Tri Delta Transit
511cc.org
ANTIOCH BRIDGE CLOSED THIS WEEKEND: Due to emergency sinkhole repairs, the Antioch Bridge will be closed from 10pm Friday (11/21) through 5am Monday (11/24). Plan travel accordingly. See map below for detour information and full closure area. @ccta.net
Expect delays on Route 160. 55-hour full closure November 21-24. Visit bit.ly/CTDeltaRegion. Map of emergency sinkhole repair area and detour route. Closure extends from Antioch Bridge to North of Sherman Island Levee Road in Sacramento County. Closure in effect from Friday 11/21 at 10pm through Monday 11/24 at 5am.
November 21, 2025 at 11:16 PM
trideltatransit.bsky.social
When you ride with Tri Delta Transit you can enter to win $511 in Big Win on Transit's weekly drawings. The more days you ride, the more chances to win. Details: https://:511cc.org/bigwin
511cc.org 511 Contra Costa @511cc.org · Nov 18
Your next bus, BART, or Ferry trip could be worth $511. Take it from Shanavia – our latest winner. She signed up for our Big Win on Transit program and logged her transit days to turn them into drawing entries. We pick a new $511 winner each week. Will you be next? Get started: 511cc.org/bigwin
Congratulations to Shanavia from Bay Point. She took Tri Delta Transit instead of driving and won $511. The more days you take transit, the more entries you receive. Get started at 511cc.org/bigwin. Big Win on Transit - sponsored by 511 Contra Costa, Contra Costa Transportation Authority, and Bay Area Air District.
November 19, 2025 at 8:22 PM
trideltatransit.bsky.social
ONLY A FEW DAYS LEFT TO ENTER!

Tri Delta Transit is excited to announce our STUDENT COVER ART CONTEST to design our January 11, 2026 printed schedule cover.

For a complete guide, application and waiver, visit our website at: trideltatransit.com/january-sche....
January Schedule Student Cover Art Contest -
January Schedule Student Cover Art Contest - Thank you for your interest in Tri Delta Transit’s STUDENT COVER ART CONTEST for the January 11, 2026 schedule, Tri Delta Transit is the public transit
trideltatransit.com
November 12, 2025 at 9:58 PM
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Tri Delta Transit Takes You Places!

Enjoy great food, live music & family fun at the Season Finale of Food Truck Thursdays on October 30.
🕔 5:00-9:00 PM
📍 Antioch Community Center
🚌 Take Route 380

Plan your trip at TriDeltaTransit.com. See this week's participating food trucks below.
Foodie Crew Antioch - Food Truck Thursdays. 5-9pm. Food trucks this week: The Fry Boys, Mozzeria, Cousins Maine Lobster, Global Express, Pupusas Buen Provecho, El Gran Taco Loco, Loretta's Kitchen, The Craving Cajun, Mini Donut Shack. October 30th at Antioch Community Center Lot - 4703 Lone Tree Way.
October 27, 2025 at 8:40 PM
trideltatransit.bsky.social
Happy Birthday Board Member Supervisor Diane Burgis. Thank you for all you do for Tri Delta Transit, the community and the County.
Photo of a birthday cupcake with a lit sparkler candle. Text reads: Happy Birthday Board Member Supervisor Burgis. Best wishes from all of us at Tri Delta Transit.
October 24, 2025 at 4:31 PM
trideltatransit.bsky.social
Tri Delta Transit will operate weekend/holiday service Tuesday, Nov. 11th, in observance of Veterans Day. Routes 370, 371, 372, 373, 374, 375, 376 & 377 will be in service. Limited paratransit & Tri MyRide service. Administrative offices will be closed. For more route info visit trideltatransit.com.
In observance of Veterans Day - Tuesday, November 11th, Tri Delta Transit will be operating weekend/holiday service. Routes 370, 371, 372, 373, 374, 375, 376 & 377 will operate. Paratransit and Tri MyRide services will be limited. The administrative office will be closed. Thank you for your service.
October 23, 2025 at 9:33 PM
Reposted by Tri Delta Transit
511cc.org
If you're headed to Pawstoberfest or Pittsburg's Halloween Spooktacular this weekend, take transit. Tri Delta Transit (TDT) can get you to both events:

• Halloween Spooktacular: TDT Route 371 - Event info: 511cc.org/spooktacular...
• Pawstoberfest: TDT Route 373 - Event info: 511cc.org/paws2025
Halloween Spooktacular at the Century Plaza Shopping Center sponsored by Sierra Pacific Properties, Inc. October 18 from 10am to 1pm. Free Jumpies, pumpkins, costume contest, and more. Ruff Day Rescue Pawstoberfest - Sunday, October 19 from 11am to 6pm - City Park, Brentwood. Food trucks, beer & wine garden, vendors, and a canine parade costume contest. Dog friendly event!
October 18, 2025 at 12:19 AM
trideltatransit.bsky.social
Big Truck Day is Thursday! Check out large trucks & vehicles, incl. Tri Delta Transit's zero-emission battery electric bus. In honor of Transit Month, visit the TDT booth for info about our electric bus & pick up some swag. Take Tri MyRide or Route 380 or 384. More: www.antiochca.gov/big-truck-day/
September 17, 2025 at 9:42 PM
trideltatransit.bsky.social
Delta Veterans Group brings Stand Down on the Delta to the Contra Costa County Fairgrounds Sept. 12-15, with essential services for veterans incl. medical & dental care, housing assistance & job placement. Homeless veterans will be housed for 4 days at the Fairgrounds. More: deltaveteransgroup.org
Join us for Stand Down on the Delta 2025. Delta Veterans Group proudly presents Stand Down on the Delta 2205. Coming this September to the Contra Costa County Fairgrounds in Antioch. A four-day event to support our homeless and at-risk veterans with essential services: Medical and dental care, housing assistance, job placement, veterans legal services, and much more.
September 10, 2025 at 8:59 PM
trideltatransit.bsky.social
Rides equal raffle entries in the Transit Month Ride Contest! Each transit system offers different prizes. Rides on Tri Delta Transit could win you a prize pack incl. an insulated TDT tote & two 20-Ride Passes. Post your rides & challenge your friends to pass you on the Leaderboard: ridecontest.com
Adventure starts on transit - Transit Month. Illustration of people from all walks of life waiting to board a Tri Delta Transit bus which has just pulled up. Screenshot of Transit Month Ride Contest Leaderboard for Tri Delta Transit. It shows rider username, total distance traveled, agency count, and ride count.
September 9, 2025 at 6:41 PM
trideltatransit.bsky.social
Every ride you take on transit is worth another raffle entry in the Transit Month Ride Contest. Sign up & log your rides. Trips you take on Tri Delta Transit (TDT) enter you to win TDT swag. They also enter you to win a high-value Clipper card from 511 Contra Costa. Sign up: ridecontest.com
Ride Contest - Part of Transit Month. Brought to you by San Francisco Transit Riders and Seamless Bay Area. Ride Transit, Win Prizes. Photo montage of different prizes. Prizes include exclusive transit ridealongs and tours, tote bags, and transit maps. Some require taking the most rides, but for others, each logged ride will enter your name into a raffle.
September 2, 2025 at 9:45 PM
trideltatransit.bsky.social
Tri Delta Transit Takes You Places:

If you're headed to the Contra Costa Block Party tomorrow (Thursday), let us do the driving. Ride Route 361 or 375, or take our Tri MyRide on-demand shuttle for $2 each way.

Block Party Info: www.contracosta.ca.gov/CivicAlerts....

@contracostahealth.bsky.social
2025 Contra Costa County Block Party - One stop for your county service needs. Thursday, August 28, 4 p.m. to 7 p.m., Antioch Community Center - 4703 Lone Tree Way. Visit contra costa dot C A dot G O V for details. 2025 Condado de Contra Costa - Todas sus necesidades de servicios en una ubicación. Jueves 28 de Agosto - 4 a 7 p.m. - Centro Comunitario de Antioch - 4703 Lone Tree Way. Visite contra costa punto C A punto G O V para más detalles.
August 27, 2025 at 9:55 PM
trideltatransit.bsky.social
Tri Delta Transit Takes You Places:

The Delta Harvest Run isn't just fun, it also supports East Contra Costa food banks, shelters & college scholarships for local students.

When: Sun., Sept. 7
Where: City Park, Brentwood
Getting There: Take TDT Route 373
Run Registration: deltaharvestrun.com
Photo of runners passing through the starting line arch. Delta Harvest Run. September 7, 2025. Half Marathon, 10K, 5K, 1-mile Family Fun Run. City Park, Brentwood. Website: Delta Harvest Run dot com.
August 21, 2025 at 5:26 PM
trideltatransit.bsky.social
Congratulations to BART, the first Bay Area transit agency to accept both Clipper & contactless-payment options. Right now, BART is the only system which can do this. Tri Delta Transit's card readers are still Clipper-only, but we're excited to get the same upgrade in the future.
bart.gov BART @bart.gov · Aug 20
🚨 Tap and Ride is LIVE! 🚨

Starting today, you can pay for BART right at the fare gates with a 💳 contactless-enabled debit or credit card or use 🤳 mobile payment, like Apple Pay and Google Pay.

There is zero registration or setup process required.
August 20, 2025 at 11:43 PM
trideltatransit.bsky.social
Take Tri Delta Transit's Route 374 or Tri MyRide on-demand shuttle to the Bay Point Community Resource Fair on Sat. (8/16). The Pittsburg/Bay Point Tri MyRide shuttle will take you from anywhere to anywhere within the service zone for just $2. Get the app: trimyride.com
Bay Point Community Resource Fair. Saturday, August 16 from 10am to 2pm. Taking place at the Ambrose Community Center in Bay Point at 3105 Willow Pass Road. Join us for a day filled with valuable resources for your and your family. This free fair connects you with essential resources, services, and emergency preparedness tools - all in one place. Free backpacks & school supplies. Free groceries and clothing vouchers. Free professional headshots. Free haircuts. Free kids activities and games. Free lunch provided - while supplies last. Educational programs & resources. Career-building resources, homeless resources, educational resources, and more.
August 16, 2025 at 12:03 AM
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Contra Costa Transportation Authority (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 & more efficient travel.

Explore the Open House and take the survey: openhouse.ccta.net
Help shape the future of transportation in Contra Costa County. The Contra Costa Transportation Authority is updating its Countywide Transportation Plan, and we want to hear from you. Take the survey at open house dot C C T A dot net.
August 14, 2025 at 8:31 PM
trideltatransit.bsky.social
New schedules take some getting used to but we hope it doesn’t take long to get used to faster, more direct routes.

The New TDT Network, which went into effect on August 10th, offers:
 
• Increased bus frequency
• Better connections with BART
• Expanded Tri MyRide service

Info: trideltatransit.com
August 14, 2025 at 5:42 PM
trideltatransit.bsky.social
The BIG schedule change is here! The new TDT network starts TODAY. New Routes, new numbers & new timetables. Tri MyRide is expanding in Antioch/Oakley & there's a new zone in Brentwood. Better & faster connections with BART. All for an improved rider experience. Details: revitalizetridelta.com
Did you know? Tri Delta Transit's NEW TDT SYSTEM has faster times, more Tri My Ride service, more frequent service, better connections to BART, more weekend service – just more for you overall. Details at revitalize tri delta dot com.
August 10, 2025 at 12:53 PM
trideltatransit.bsky.social
On Mon., Aug. 11, BART will make minor schedule changes in coordination with the region’s other transit systems – including Tri Delta Transit – as part of a regional effort to sync schedules, reduce impacts & improve transfers for transit riders. Learn more: www.bart.gov/news/article... @bart.gov
Photo of BART Fleet of the Future train on elevated tracks crossing over local roads
August 6, 2025 at 9:52 PM
trideltatransit.bsky.social
ENVIRONMENTAL TOWN HALL & RESOURCE FAIR: Saturday's event will be at Oakley's Big Break Regional Shoreline. Visit the Tri Delta Transit table & learn about our zero-emission electric buses & our plans to electrify our fleet. Attend virtually or in person. RSVP: desaulnier.house.gov/town-hall-rsvp
Congressman DeSaulnier hosts an Environmental Town Hall & Resource Fair - Saturday, July 26th. Resource Fair - 10 am to 11:30 am. Town Hall begins at 10:30am. Big Break Regional Shoreline in Oakley. Join us for a special outdoor event and connect with local environmental groups. RSVP at DeSaulnier dot house dot gov slash town dash hall dash R S V P. Space is limited.
July 23, 2025 at 10:12 PM