Yes, from the A11 go over the A47 Thickthorn r/about into Norwich, round the ring road (clockwise) onto Wroxham Rd, at Rackheath turn right onto Muck Lane (signposted Salhouse Station), within 1/2mile track will be on the left, through a gap in the trees. I wouldn't think it'll take much longer than going round the A47 tbh.
This may help if you want to bypass Norwich towards Gt Yarmouth, showing a 5 r/about diversion off & back onto the A47:
http://www.postwick.co.uk/oak/