East Contra Costa's bus line is considering increasing its fares for some of its longer bus routes with limited stops, along with cutting and changing several others that have a limited number of riders.

Under the proposal, the single-ride fare for Tri Delta Transit's routes 200 and 201, which go from the Pittsburg/Bay Point BART station to the Martinez Amtrak and Concord BART stations, would increase from $2 to $2.50, and 85 cents to $1.35 for seniors. The 24-hour pass prices will remain the same.

"We're just trying to be efficient and align fares with the correct routes," said Steve Ponte, the agency's chief financial officer.

The routes up for elimination are 379, which is a limited-stop route from the Hillcrest Park and Ride to Kaiser Permanente Antioch, and 386, which goes from Brentwood Park and Ride to Discovery Bay twice a day. Both have very few, if any riders, on a given day, Ponte said.

"We're taking a look at where do we really want to keep spending and shifting our resources to where they are most needed," he said.

Tri Delta also is looking to cut 22 trips at various times of the day, along with stops at San Marco Villas and Willow Pass Business Park.

The public will be able to vet Tri Delta Transit's proposal at four meetings over the next month, beginning at 7 p.m. Tuesday at Oakley City Hall, 3231 Main St.

Other meetings will be held 7 p.m. May 30 and 2 p.m. June 8 at Bay Point's Ambrose Community Center and 7 p.m. June 17 at the Tri Delta Transit Administrative Offices, 801 Wilbur Ave, Antioch.

Afterward, the board will decide what changes to make.

For more information or to submit comments, call 925-754-6622, email Ponte at sponte@eccta.org or go to www.trideltatransit.com.

Contact Paul Burgarino at 925-779-7164. Follow him at Twitter.com/paulburgarino.