Below Peterborough Below Peterborough, the river meandered to Tydd Gote, where it shared an outfall to the Wash with the River Great Ouse. Once the latter was diverted to Bishop's Lynn in 1236, the Nene outfall deteriorated. Navigation was improved in the 1470s when Morton's Leam, a straight channel between Peterborough and Wisbech, was constructed by Bishop Morton. It was improved in 1570 and 1631. In 1631 a sluice was built at Wisbech by Vermuyden.
Below Peterborough Below Peterborough, the river meandered to Tydd Gote, where it shared an outfall to the Wash with the River Great Ouse. Once the latter was diverted to Bishop's Lynn in 1236, the Nene outfall deteriorated. Navigation was improved in the 1470s when Morton's Leam, a straight channel between Peterborough and Wisbech was constructed by Bishop Morton. It was improved in 1570 and 1631. In 1631 a sluice was built at Wisbech by Vermuyden.