Wales are Triple Crown winners after victory over England in the Six Nations
The game which saw plenty of controversy ended 40-24
Wales have taken a step towards a Grand Slam after beating England in the Six Nations.
They pick up the Triple Crown - having already beaten Scotland and Ireland in the tournament.
A number of controversial decisions from the referee and poor discipline from England saw the final score at 40-24 to Wales.
Next up is Italy a week on Saturday with the final game against France.
Josh Adams, Liam Williams, Kieran Hardy and Cory Hill scored tries for Wales, while replacement Callum Sheedy kicked 13 points, including three late penalties, and Dan Biggar booted a penalty and two conversions.
“We talked about it being a special day for a lot of reasons – George North’s 100th Test match, some silverware on the line and the opportunity to go deeper into the competition and push on,” Pivac said.
“It was a special day, the weather was good and we went out there and got a bonus-point win. You have to be proud of the performance.
“We have already spoken briefly about the importance of the next game. It would undo a lot of very good work if we didn’t focus on that game and that game alone.
“We have to make sure we go out there (to Italy) and put in another solid performance and hopefully get the points. The last weekend will take care of itself.
“Because we haven’t really played the house down yet, we have well and truly got our feet on the ground. The players have talked about that already.
“We will be working really hard, looking at the Italians and doing all of our usual reviewing of our performance and previewing them.”
Pivac praised Bristol fly-half Sheedy’s contribution after he punished England’s indiscipline.
“I thought he was fantastic,” Pivac added. “After missing a couple of kicks up in Edinburgh, to come on in that situation, a very tight game, he had three difficult kicks and hit all three of them well.
“I am just pleased for him. His general play was solid. I thought all the boys coming on added something to the game.
“Callum is doing everything that we are asking of him, and he is enjoying being in the environment.
“He is just a young guy that is really enjoying the environment, he is expressing himself and he’s doing very well, along with a lot of other players.
“We want to have competition across a lot of positions, and we want that selection headache every week.”
England’s poor discipline surfaced repeatedly, with lock Maro Itoje a particular culprit.
Asked if he had expected a yellow card for Itoje, Pivac said: “Yes, probably before half-time on the fourth one (penalty conceded).
“That is a lot of penalties for one player. He is pushing the boundaries, clearly, but he is a world-class player. Sometimes world-class players get away with a little bit more than others.
“A lot of people may have thought that, at 24-24, England were coming pretty strong at us. But our guys found another gear again and we are very pleased with that.
“For me personally it’s about the players and providing them with an environment where they can come in and get the job done, keep improving.
“Hopefully, we are doing that and people are seeing that the hard work is starting to pay off. But there are still two big games to go.”