Improvements on two of San Francisco’s most important bicycling links continue to take shape: Green paint now graces the first block of the Fell Street separated bike lane, and much of the visible construction has been completed on the left-turn bicycle lane and traffic signal going in at Market and Valencia Streets.

Streetsblog reader Mark Dreger sent in photos of the improvements today, noting that the green paint on Fell highlights the beginning of the bike lane west of Scott Street, and there is now a longer segment of dashed green markings extending from the area where bike riders merge with drivers queuing up at the Arco gas station. SFMTA crews laid down the basic stripes of the bike lane last week, including the outline of a bike box and an advanced stop line for cars at the Divisadero intersection.

At Market and Valencia, Department of Public Works crews appear to have mostly completed the concrete work, which involved cutting out a section of the sidewalk (formerly an unused curb cut) and installing an island that sets off the area where left-turning cyclists queue up. Bike traffic continuing straight through the intersection will be routed around the left of the island, according to the project plans, meaning there will be a short stretch with no buffer zone. One of two bicycle traffic signal heads has also been installed. SFMTA crews still have to add markings for the left-turn lane and activate the new traffic signals.

Update: Mike Sallaberry of the SFMTA’s Livable Streets Subdivision said the traffic signals are expected to be activated this week.

See more photos after the break.