Yesterday, we had somewhere between 14 and 16 inches of pretty heavy snow in Boston. It mostly fell in the morning, but there were snow showers until evening. Since much of the snow which has fallen since Christmas is still on the ground, we are losing a lot of bike lanes and the paths are not as clean as cyclists would like. Due to an appointment north of Boston, I didn't get to ride my normal bikepaths Thursday morning, but I hit a few I usually miss and picked up some more on my way home Thursday night.

Please send updates and reports on the conditions of other paths in Massachusetts to Doug Mink.

Arnold Arboretum 1.5 miles of park roads which are mostly closed to automobile traffic with no intersections Boston Parks and Harvard University	Friday morning, there was hard-packed snow throughout, with more patches of ice than of bare pavement.
Blackwell Footpath A half-mile gravel path connecting the Forest Hills MBTA station and the South St. Arboretum entrance Boston Parks and Harvard University	This often gets plowed, but I haven't ridden it yet.
Washington St. Bike Lanes A mile of bike lanes on both sides of Washington St. from Forest Hills to Roslindale Square and beyond on Belgrade Ave. Boston Public Works Department	Thursday night, they were clear, but there were a few places where snow at the curb was pushing parked cars out into the bike lanes. Then the cars started parking on Washington St. again. Friday night, most of the south-bound bike lane from Forest Hills to Roslindale Square was blocked by parked cars.
Southwest Corridor Bikepath Separated Bike/Ped path with poorly-designed intersections Department of Conservation and Recreation, Division of Urban Parks and Recreation	David Wean reports: The SW corridor on Thursday night had been plowed. From Ruggles to Stony Brook you could see pavement on maybe 80-90%, but there were still significant stretches of ice or thin packed snow. From Stony Brook to Forest Hills it was consistently covered with snow or ice. Fine with studded tires (no deep bumpy ice) but seems as if it won't be rideable with normal tires for a while.
Jamaica Plain Bike Lanes A mile of bike lanes on various sides of Centre and South Streets from Jackson Square to Forest Hills Boston Public Works Department	Friday night, the lanes were mostly blocked by parked cars, though away from the business district, they sometimes were clear.
Arborway "Bike Lanes" 1 mile of wide paved shoulder which is unmarked but usually clear of parked cars during rush hour Department of Conservation and Recreation, Division of Urban Parks and Recreation	Thursday night, the shoulders were totally covered with snow; I got honked at for riding in the right lane. Friday morning, the sidewalk along the Arborway was packed snow and somewhat icy but ridable. Between Murray and Kelly Circles, the west side sidewalk had been plowed by a SnoCat or Bombardier.
Jamaicaway Bikepath 1.5 miles of mostly bike/ped-separated paths paralleling a busy 4-lane parkway; two intersections with traffic lights Boston Parks Deparment	Thursday night, the path was packed powder on the flats south of Perkins St., but it was clear all of the way north from Perkins St. to Route 9, with a lot of bare pavement and some snow which had fallen from trees. There were some icy patches.
Perkins St. Bike Lanes 1.5 miles of mostly bike/ped-separated paths paralleling a busy 4-lane parkway; two intersections with traffic lights Department of Conservation and Recreation Division of Urban Parks and Recreation	Friday morning, most of the lanes on both sides were covered with snow, though some of the northeast-bound side is clear from Prince St. to the north end of the stretch of parking
Olmsted Park Paths 3/4-mile of mostly bike/ped-separated paths built over Riverdale Road, across Leverett Pond from the Jamaicaway. Brookline Park Department	On Friday morning, the bike path was unplowed from Perkins to Willow Pond, but the pedestrian path is plowed. There was a Town of Brookline tractor moving snow, but the bikepath was not clear by evening. From Willow Pond to Route 9, both paths are plowed to packed powder with some long icy patches.
Muddy River Path 12-foot-wide 0.6 mile shared bike/ped path with no intersections Brookline Park Department and DPW	South of Longwood, the path is still very icy on Friday morning. I couldn't have stayed upright without studded tires. Between Longwood and Park Drive, the path was plowed before the snow stopped, and it can be hard going through loosely-packed snow.
Commonwealth Ave. Bike Lanes Connecting the B.U. Bridge to Boston University Boston Transportation Department	Fairly clear around the B.U. Bridge on Friday morning
Brookline Bike Lanes Town of Brookline	Not checked
B. U. Bridge east sidewalk Boston to Cambridge Department of Conservation and Recreation, Plowed By Mass. Highway Department or B.U.	The Boston approach is bare pavement, but over the water and on the Cambridge approach, there is a coating of snow, though not much ice on Friday morning.
Harvard (Mass. Ave.) Bridge bike lanes Cambridge to Boston Department of Conservation and Recreation, Plowed By Mass. Highway Department	No report, but probably clear
Longfellow Bridge bike lanes Cambridge to Boston Department of Conservation and Recreation, Plowed By Mass. Highway Department	No report, but maybe clear
Charles River Bikepaths Narrow, shared bike-ped path with few intersections Department of Conservation and Recreation, Division of Urban Parks and Recreation	From the B.U. Bridge upstream to Hawthorn St., the Cambridge side path is plowed, but there is a significant amound of snow in the path and occasional ice. I only rode the stretch upstream from Harvard Square, but the rest looked bad enough that I avoided it Thursday night and Friday morning. I'l maybe give it a try to the B.U. Bridge Friday night. New Balance has renewed a sponsorship agreement with the Department of Conservation and Recreation (DCR) to ensure area runners, joggers and walkers have clear and safe running paths along the Charles River during the 2011 winter season. ... New Balance, recognizing DCRs commitment to outdoor enthusiasts, has pledged to provide funding to support snow removal efforts along the 17-plus mile Charles River path spanning from the Museum of Science area in Cambridge to the Galen Street Bridge in Watertown. Following DCRs normal priorities, the snow removal will be performed by DCR within 24 hours of the completion of a storm. Because the route runs in close proximity to the river bank, there is limited salting and sanding that can be performed, so the DCR and New Balance urge runners to continue to use caution.
J.F.K. Park Wide, shared bike-ped path from river to Harvard Square Department of Conservation and Recreation, Division of Urban Parks and Recreation	Plowed
N. Harvard St. bike lanes Boston Boston DPW	The southbound lane is covered by snow piles almost all of the way from the river to Western Ave., and the northbound lane is only a little bit better. Not much has changed since the Christmas storm.
Lincoln St. to Cambridge St. MassPike Bridge Bike/Ped connection from Harvard Square to Allston's Harvard Ave. district via Franklin St. Massachusetts Turnpike Authority	The bridge and approaches are clear.
South Bay Harbor Trail Bike/Ped path from the Federal Court House up Fort Point Channel to the Southwest Corridor City of Boston	Not checked yet, but I suspect that the section in front of the Crosstown Development near Mass. Ave. will be done, and the path will be clear where it goes under the Expressway.
Neponset Trail Mostly paved Bike/Ped path Department of Conservation and Recreation, Division of Urban Parks and Recreation	Not checked but probably plowed. There is a Bombardier stationed at Pope John Paul II Park which is usually out as soon as the snow stops.
Somerville Community Path Wide rail trail from Davis Square to Cedar St. City of Somerville	Not checked, but probably plowed.
Red Line Linear Park Path Alewife MBTA station to Davis Square over Red Line City of Cambridge City of Somerville	Plowed and salted from Alewife station to Mass. Ave. This path was in the best condition of any path I rode Thursday.
Danehy Park Paths City of Cambridge	Main paths and St. Peters Field path plowed to packed/loose powder. They were bikable.
Cambridge Bike Lanes Striped lanes of varying widths on major and connecting streets City of Cambridge	Main roads are clear, but the bike lanes are pretty much gone, and minor roads still are slippery with snow and some ice. Friday morning, the Brookline St. bike lane was pretty clear, as were the Green St. and Franklin St. unofficial bicycle boulevards parallelling Mass. Ave to Harvard Square.
Fresh Pond Bike Path Parallel to Fresh Pond Parkway in Kingsley Park City of Cambridge	Chris Porter reports on Friday that it is plowed with icy spots.
Alewife Parkway Bridge Sidewalk Connection from Minuteman Bikepath to Fresh Pond and beyond Department of Conservation and Recreation, Division of Urban Parks and Recreation	Chris Porter reports that it is plowed on both sides, but on the west side only a thin strip is down to the pavement.
Minuteman "Commuter Bikeway" Towns of Cambridge, Arlington, Lexington, and Bedford	The Cambridge end was not plowed. Details are usually posted at http://www.clearthetrail.org
Upper Charles Reservation Watertown, Newton, Waltham 4+ miles of paved and unpaved bikepaths Mass. Department of Conservation and Recreation Division of Urban Parks and Recreation	Not checked.
Stony Brook Reservation Hyde Park 4+ miles of paved bikepaths Mass. Department of Conservation and Recreation Division of Urban Parks and Recreation	These paths aren't plowed because they get relatively little transportation use and because they are used by cross-country skiers like me. There are marked narrow bike lanes on Enneking Parkway through the reservation which are probably clear. The Friends of Stony Brook Reservation is leading a walk from Enneking Parkway at Smith Field Road at 1:00 pm on Sunday, January 30.
Former Metropolitan State Hospital Belmont, Waltham paved bikepaths Mass. Department of Conservation and Recreation Division of Urban Parks and Recreation	Not checked yet.
Assabet River Rail Trail Hudson and Marlborough, so far Town of Hudson, City of Marlborough (so far)	Not checked, but probably not plowed.
Northampton Bikeway East-west across the City of Northampton City of Northampton	Craig Della Penna, who lives next to the path, reports that it is the intention of the DPW to make it passable ASAP after a storm. If the storm is significant, then they plow it repeatedly --sometimes 10-12 times during the course of the storm to ensure its usability.
Norwottuck Rail Trail Northampton to Amherst Department of Conservation and Recreation, Division of State Parks and Recreation	No report, but there was a ton of snow out west.