Taken from aoc.......
*I thought I should give you all a heads up.
For anyone using the A45 to get to PVS (which will probably be anyone coming in from the west) our lovely forward thinking council have decided to close a portion of the A45 dual carriageway over the weekend, in between the Weston Favell Interchange (where you come off for Riverside) and the Billing Interchange.
As an alternative route, I recommend taking the A43 Lumbertubs Way, up to the A4500 Wellinborough Road and go right toward Wellingborough. Carry on down there all the way to Wellingborough, till you get to the A509 Wilby Way. Take a right there, which will take you back down to the A45, just before you turn off for the Pod.*
ive just selected alternative route on the sat nav as we will be coming that way, and it has added 1 min to the journey and gets you off at M1 junction 15 @ felixstowe..., then along the a43