It passes Wyberton Fen and meets a roundabout with a Tesco superstore and B&Q on the left at Chain Bridge. The Hammer & Pincers pub is on the left just before a roundabout, where the main route follows to the left, and the straight-on direction is for Wyberton. The Alban Retail Park is on the right before it crosses the South Forty-Foot Drain and railway at a level crossing, then meets the A1121 from the left at a mini-roundabout close to a Peugeot, Citroën and BMW garage. It enters Boston as "Sleaford Road" along a long straight avenue of trees, passing the "Shell Boston" garage on the right.