Seasonally closed numbered highways

[Beeper1]

Apologies if this already has a thread someplace, but I couldn't find one.

List of numbered state and US highways that have seasonal (usually winter) closures.

Starting in New England:

Maine-113 through Evans Notch
Vermont-58 through Hazens Notch
Vermont-108 through Smuggler's Notch

[02 Park Ave]

NY 218 in Orange County between West Point (USMA) and Cornwall on Hudson

This road is also known as Storm King Highway after the mountain to which it clings.

[Max Rockatansky]

CA 4, CA 120, CA 180, CA 270 and CA 89 all have areas in the Sierras which close for the winter. 

[oscar]

In Alaska, all of AK 5, most or all of AK 8, AK 10 (Cordova) east of the airport are all closed in the winter, or at least are unmaintained (including no snow removal until spring) and "travel not advised".

[kurumi]

Connecticut has two routes with seasonal closures: CT 148 and CT 160. These are not snowbound mountain passes, but instead winter closures of the ferries on each route.

[gonealookin]

Nevada has NV 231 in Elko County, leading out of Wells up to Angel Lake.

[Max Rockatansky]

AZ 67 closes in the winter time from US 89A south to the Grand Canyon National Park Boundary.

[US 89]

Utah has quite a few: UT 35, 39, 65, 92, 148, 150, 153, 190, and 224 all have high mountain sections that close in the winter. In addition, there are several other routes which are only plowed during daytime hours.

[Big John]

Connecticut has two routes with seasonal closures: CT 148 and CT 160. These are not snowbound mountain passes, but instead winter closures of the ferries on each route.

WI 113 and US 10 ferries closed in the winter.

[KeithE4Phx]

AZ 67 closes in the winter time from US 89A south to the Grand Canyon National Park Boundary.

That's the road to the North Rim, which itself closes for the winter.

As does AZ 473 (AZ 260 to Hawley Lake).  IIRC, AZ 373 to Greer also closes during the winter, but I'm not 100% sure about that.

[Max Rockatansky]

AZ 67 closes in the winter time from US 89A south to the Grand Canyon National Park Boundary.

That's the road to the North Rim, which itself closes for the winter.

As does AZ 473 (AZ 260 to Hawley Lake).  IIRC, AZ 373 to Greer also closes during the winter, but I'm not 100% sure about that.

Apparently 373 stays open.  261, 273, and 366 are all showing winter closures presently.

http://www.az511.gov/traffic/index.jsp

[TheHighwayMan3561]

US 34 Trail Ridge Road
CO 82 over Independence Pass
Part of the US 212 Beartooth Highway

[Max Rockatansky]

US 34 Trail Ridge Road
CO 82 over Independence Pass
Part of the US 212 Beartooth Highway

CO 5 also closes down during the the winter.  WA 20 usually closes in the Cascades but I'm to understand that there are some years the snow wasn't heavy enough to shut it down.

[Bitmapped]

West Virginia doesn't have any state-maintained roads that close seasonally, but WV 150 (the "parkway" section of the Highland Scenic Highway) isn't plowed in the winter. It's not closed, but there are very prominent signs warning that the road is subject to drifts and may be impassible during the winter. There are some rural county routes, particularly in the mountain counties, that are also not maintained in the winter.

WV has some US Forest Service-maintained roads that are gated closed during some parts of the year. Some are closed most of the year and only open during hunting season. Others, like FR 19 and FR 75 through Dolly Sods, are closed during winter months because of the weather.

[jp the roadgeek]

Lake Ontario State Parkway (NY Reference Route 947A)

[adventurernumber1]

If I recall correctly, all of the US Highways (probably all of the roads in total, not limited to that) in most or all of Yellowstone National Park are closed during the winter months. I was surprised to find out this fact when I went to Wyoming at the very beginning of 2016, and regular motor vehicles could not drive into the park (since it was winter) - only snowmobiles (which is what I rode on through the park) and the sort. Unsurprisingly, the roads were heavily covered with snow, as were the surroundings (obviously). This is the most prominent example of this that stands out in my mind.

[Max Rockatansky]

If I recall correctly, all of the US Highways (probably all of the roads in total, not limited to that) in most or all of Yellowstone National Park are closed during the winter months. I was surprised to find out this fact when I went to Wyoming at the very beginning of 2016, and regular motor vehicles could not drive into the park (since it was winter) - only snowmobiles (which is what I rode on through the park) and the sort. Unsurprisingly, the roads were heavily covered with snow, as were the surroundings (obviously). This is the most prominent example of this that stands out in my mind.

There aren't any US Routes in Yellowstone, they all end at the park boundary.  There is no implied routing for through routes line US 20, 89, 191, and 287 within the park. 

[GaryV]

Portions of H-58 (a state-branded county road) in the MI UP is closed during the winter.

On the opposite end of the spectrum, M-185 is only open to motorized vehicles in the winter - snowmobiles, that is.

[adventurernumber1]

If I recall correctly, all of the US Highways (probably all of the roads in total, not limited to that) in most or all of Yellowstone National Park are closed during the winter months. I was surprised to find out this fact when I went to Wyoming at the very beginning of 2016, and regular motor vehicles could not drive into the park (since it was winter) - only snowmobiles (which is what I rode on through the park) and the sort. Unsurprisingly, the roads were heavily covered with snow, as were the surroundings (obviously). This is the most prominent example of this that stands out in my mind.

There aren't any US Routes in Yellowstone, they all end at the park boundary.  There is no implied routing for through routes line US 20, 89, 191, and 287 within the park.

I actually did not know that. I knew that signage through the park for those US Routes was at least very poor and insufficient, but I did not realize that technically there aren't actually any US Highways in Yellowstone. I guess that makes for a huge gap in the US Highway System, then.   

[US 89]

If I recall correctly, all of the US Highways (probably all of the roads in total, not limited to that) in most or all of Yellowstone National Park are closed during the winter months. I was surprised to find out this fact when I went to Wyoming at the very beginning of 2016, and regular motor vehicles could not drive into the park (since it was winter) - only snowmobiles (which is what I rode on through the park) and the sort. Unsurprisingly, the roads were heavily covered with snow, as were the surroundings (obviously). This is the most prominent example of this that stands out in my mind.

There aren’t any US Routes in Yellowstone, they all end at the park boundary.  There is no implied routing for through routes line US 20, 89, 191, and 287 within the park.

I actually did not know that. I knew that signage through the park for those US Routes was at least very poor and insufficient, but I did not realize that technically there aren't actually any US Highways in Yellowstone. I guess that makes for a huge gap in the US Highway System, then.   

If you want to get even more technical, US 191 actually does enter Yellowstone, but it clips the northwestern corner and doesn't connect to anywhere else in the park.

Also, the roads from the north entrance south on 89 to Albright, east to Tower Jct, and northeast to 212 to Silver Gate, MT do remain open in winter, because that is the only road access to Silver Gate in winter. The pass east of Silver Gate on US 212 (the Beartooth Highway) closes in winter.

[gonealookin]

CA 4, CA 120, CA 180, CA 270 and CA 89 all have areas in the Sierras which close for the winter.

Here is the Caltrans list:  CA 4, CA 89, CA 108, CA 120, CA 158, CA 168, CA 203.  Not sure why they don't include CA 270 because it's certainly closed for extended periods.

Nevada has NV 231 in Elko County, leading out of Wells up to Angel Lake.

Clarifying my own entry above, that's the upper 4 miles or so of NV 231, which is a winter closure.  That stretch only serves some recreational facilities:  campgrounds, trailheads and the high-altitude lake at the end.  It's Nevada's only winter closure.  NV 431 from south Reno to Incline Village goes up to 8900 feet above the northeast corner of Lake Tahoe, but it's only closed for short periods for avalanche control.

[Max Rockatansky]

CA 4, CA 120, CA 180, CA 270 and CA 89 all have areas in the Sierras which close for the winter.

Here is the Caltrans list:  CA 4, CA 89, CA 108, CA 120, CA 158, CA 168, CA 203.  Not sure why they don't include CA 270 because it's certainly closed for extended periods.

Nevada has NV 231 in Elko County, leading out of Wells up to Angel Lake.

Clarifying my own entry above, that's the upper 4 miles or so of NV 231, which is a winter closure.  That stretch only serves some recreational facilities:  campgrounds, trailheads and the high-altitude lake at the end.  It's Nevada's only winter closure.  NV 431 from south Reno to Incline Village goes up to 8900 feet above the northeast corner of Lake Tahoe, but it's only closed for short periods for avalanche control.

I forgot about the winter closure on most of CA 172 which technically is still in the Sierra Range, albeit the most northern extent. 

[JasonOfORoads]

OR-242 through McKenzie Pass is usually closed for about 8 months out of the year.