While it doesn't appear that 2010 will have quite as many big items as 2009 did, there is still much to be excited about.
Work starts on phase I of the Long Bridge Park with it's bike lanes an Esplanade.
Capitol Hill Bikes reopens at new location.
Construction begins on the two bridges that carry the Anacostia Riverwalk Trail over the railroad tracks.
DDOT to break ground on the Rhode Island Avenue Metro Bridge to the Met Branch Trail.
Construction Starts on Phase IV of the College Park Trolley Trail.
Eisenhower Avenue Bike Trail opens - the last bicycle element of the Wilson Bridge Project.
Metropolitan Branch Trail's R street gap should open sometime in the spring allowing users to ride the trail from L to Franklin.
Massive Smartbike expansion by May. Announcement should come sooner.
The Crystal City Commuter Hub opens.
Completion of the new Humpback Bridge along the Mt. Vernon Trail, which will provide for a much wider Active Transportation Lane as well as underpasses on both the Virginia and DC sides.
Washington Boulevard Trail Phase II starts work
Arlington Boulevard Trail Renovation
Rte 110 South Trail (Memorial Dr to Pentagon)
Columbia Pike parallel routes (Wayne to Quincy Sts, both sides)
Rosslyn Intersection Improvements (everything except Lynn St underpass)
That's all I can think of at least.
Photo by William Couch