RAF Coltishall area

Hi All,
Am looking for some info on any weight or width restrictions around the old RAF Coltishall area.
I need to get to what I think is Cromes Place (all I have is a Lat / Long reference.) I can see there are some back roads with bridges over the river.
Am coming up A12 / A140 to Norwich from Kent.
Any ideas on the best route into this area please.
thanks.

in my airforce days i used to take wagon and drags into coltishall all the time. we used to go straight up the b1150 from the norwich ring road. things may have changed though as it was over 15 years since i last went there.
maybe someone with recent local knowledge can help.

Thanks for the info Dave,
Cheers.