The Abbotsford crossing is known to us as the Sumas Wa. crossing.
Usually is very easy. traffic can be heavy during peak commute times.
Have your passport, dogs rabies certificate, ready to hand the agent.
If you are crossing with permitted guns, read the rules at the Canadian fire arms centre web page. Have that paper work ready also.
If you are coming from the east ( like Ks) a better place to cross is Highway 97 north. ( Oroville to Osoyoos ) they seem to be more laid back and not so uptight.
2000 Newmar mountain aire 4081 DP, ISC/350 Allison 6 speed, Wrangler JL toad.