WALNUT CREEK — BART passengers can expect delays in Contra Costa County this weekend, but drivers on Highway 24 won’t have to worry about lane closures during the day.

BART will be running trains on a single track between the Orinda and Walnut Creek stations as crews repair and upgrade that section of track, and is warning passengers of up to 30-minute delays.

Trains will be running on a single track between Orinda and Walnut Creek today due to Measure RR-funded track work in Lafayette. Expect delays in the area up to 30 minutes but work shouldn't impact the rest of the BART system. No daytime Highway 24 lane closures this weekend. pic.twitter.com/yqtbaflOVx — SFBART (@SFBART) September 7, 2019

There will not be any daytime lane closures of Highway 24 in around Lafayette this weekend, but those will return next weekend.

It’s all part of a multi-month project to replace aging tracks and infrastructure funded under Measure RR, the $3.5 billion bond that voters approved in 2016.