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A6 Shut Down: Essential Viaduct Work Begins May 8
27 Apr
Summary
- A6 by Irthlingborough viaduct closed in May and early June.
- Work includes re-waterproofing and replacing expansion joints.
- Drivers advised to plan ahead due to diversions.

The A6 near the Irthlingborough viaduct in Northamptonshire is scheduled for extensive closures throughout May and into early June. These essential works are critical for maintaining the viaduct's long-term safety and structural integrity.
The first phase of repairs will commence on May 8th and conclude on May 11th, with an additional overnight closure on May 12th. This initial stage focuses on re-waterproofing a portion of the viaduct and replacing vital expansion joints.
A second phase of work is planned from May 29th to June 2nd, with contingency dates available if needed. North Northamptonshire Council emphasizes the necessity of these "essential" repairs. Diversion routes will be implemented to manage traffic flow during these periods. Motorists are strongly advised to prepare for these disruptions and allow for extra travel time.