In Whitehorse, there is a portion of the Alaska Highway that has a similar situation. A huge 'pond' has built up on the south side of the highway between town and the turn-off to the Klondike Highway. Not so high that it is flowing over the highway though.
Telephone poles are half submerged. Crews are working on it with only one lane open so their equipment can sit on the highway. Hopefully the highway maintains its integrity with the crews' help. Wouldn't be a good spot for a washout.