It snowed lightly on and off all weekend, leaving the roads clear, but the paths with a coating of packed snow which got icy where it melted and refroze. 1-2 inches is a hard amount to plow, partly because it gets totally packed before the plows get to it. It was often icy enough that I felt that my studded tires were really helping.

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	Even the est-facing slopes were packed snow on Monday morning, and the road between Hemlock Hill and bussey Brook was especially icy.
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	Clear, but there were places where snow at the curb was pusing parked cars out into the bike lanes.
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	The shoulders are clear in some places, but got pretty narrow in others. The sidewalk along the Arborway was packed snow and somewhat icy.
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	The path was clear with a thin layer of dirty salt, though there was some drifting near the boathouse. It was clear all of the way from Perkins St. to Route 9, though.
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	Westbound they are pretty clear, but eastbound there is still snow from the Christmas storm.
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	Packed powder and somewhat icy on Monday night.
Muddy River Path 12-foot-wide 0.6 mile shared bike/ped path with no intersections Brookline Park Department and DPW	Packed powder and icy in some places The contraflow cycle track hasn't been plowed since the Christmas storm and is impassable.
Commonwealth Ave. Bike Lanes Connecting the B.U. Bridge to Boston University Boston Transportation Department	These were totally clear near the B.U. Bridge
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.	Plowed to bare pavement. The west sidewalk, which I prefer, is closed during this phase of bridge reconstruction.
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 was drifted snow near the Weekes Footbridge and icy pavement near the B.U. Bridge. Mark Simpson reports: Yesterday i rode the Charles River path (Boston side) from the Arthur Fiedler bridge to River St. Up until the BU bridge it was a sheet of mostly ice. I saw one bicyclist who went down and i did once and nearly went down another time and had some jarring slips a few other times. Right after the BU bridge was more ice but most if not all of the rest of the path to River St. was fine - just clear pavement.
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	Clear pavement.
N. Harvard St. bike lanes Boston Boston DPW	Clear near the stadium, but totally blocked by plowed snow further south next to the practice fields.
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 is clear pavement, but there is ice on the northern ramp.
Southwest Corridor Bikepath Separated Bike/Ped path with poorly-designed intersections Department of Conservation and Recreation, Division of Urban Parks and Recreation	Matt Marx reports: Mostly clear from Ruggles St. to Centre St. South of Centre St, patches of ice and snow to the point where the path is almost unridable without studs. I almost fell twice.
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	Not checked but probably plowed.
Danehy Park Paths City of Cambridge	Not checked yet.
Cambridge Bike Lanes Striped lanes of varying widths on major and connecting streets City of Cambridge	The roads are clear, but the bike lanes are a bit narrower this time.
Fresh Pond Bike Path Parallel to Fresh Pond Parkway in Kingsley Park City of Cambridge	No report yet
Alewife Parkway Bridge Sidewalk Connection from Minuteman Bikepath to Fresh Pond and beyond Department of Conservation and Recreation, Division of Urban Parks and Recreation	No report yet.
Minuteman "Commuter Bikeway" Towns of Cambridge, Arlington, Lexington, and Bedford	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 wasn't much snow out west.