The aqueduct carrying water from Haweswater Reservoir to Heaton Park Reservoir in Manchester follows the line of Longsleddale underground on the east of the valley, and crosses Stockdale Beck by a pipe bridge.
•
Longsleddale was the inspiration behind the fictional Greendale village, setting of BBC children's television series Postman Pat.
•
When the directors of the Lancaster and Carlisle Railway were choosing its route in the 1840s, one possibility considered was a route through Kendal and along Longsleddale, with a 2 mile tunnel under the Gatescarth Pass into Mardale and thence towards Bampton.