Arlington is moving forward with a bike trail along Washington Blvd and has moved the placement of the trail to save trees.

The trail is expected to cost about $1.7 million, according to county Dept. of Environmental Services spokeswoman Shannon Whalen McDaniel, but it has not been put out to bid yet. The trail has been approved and in planning stages for years, but its initial path would have necessitated digging up hundreds of mature trees.

This Saturday, the Arlington County Board is likely to approve a realignment of the trail to put it closer to Towers Park and S. Rolfe Street, north of Columbia Pike. If approved, the county would pay $8,000 to the federal government to acquire the easement for the trail. The trail will then be put out to bid. Construction is expected to begin next year and end by summer 2015.

Phase I of the trail has already been built, between Route 50 and S. Walter Reed Drive, according to the county staff report. The trail segment in question would run from Walter Reed Drive to S. Rolfe Street and Columbia Pike. The trail is being built to “provide a new opportunity for persons in the southeastern part of Arlington to bicycle, walk or run on a route apart from motor vehicle traffic,” according to the staff report.

Waiting for approvals from the Virginia Department of Transportation has delayed the project, McDaniel said. VDOT controls the space adjacent to Washington Blvd where a large part of the trail will be built.