All Donegal Winter Maintenance designated gritting routes are to be treated from 3 pm this afternoon.
It comes as a yellow snow and ice warning is to come into effect at 6 pm this evening.
The roads will again be treated at 8 pm.
Donegal County Council are urging drivers to assume that no road is ice-free.
Routes being gritted:
01: National Primary North
02: National Primary Central
03: National Primary South
04: Inishowen South
05: Inishowen East
06: Inishowen West
07: Milford South
08: Milford North
09: Cill Ulta East
10: Cill Ulta West
11: Na Rosa
12: Binswilly
13: Stranorlar North
14: Stranorlar East
15: Stranorlar West
16: Donegal West
17: Donegal North
18: Donegal South
19: Donegal National Secondary
BT: Buncrana Town
LT: Letterkenny Town
