From water supply reservoir to nature reserve
The core of the reserve is the former Jackhouse Reservoir. Local council information describes its construction, decommissioning, and how the site was reshaped for conservation and recreation.
Timeline (as stated in local sources)
| Period | What happened | Source type |
|---|---|---|
| 1860s | Jackhouse Reservoir was built to supply drinking water. | Hyndburn Borough Council page |
| 1980s | The reservoir was phased out of service and later redeveloped as part of a nature reserve. | Hyndburn Borough Council page |
| Later redevelopment | Steep sides were re-graded to create gentler slopes, and water depth was reduced to support a reserve setting. | Hyndburn Borough Council page |
How the landscape changed
The council describes Jackhouse as an example of a functional site becoming disused and then acquiring value for nature conservation and recreation.
Specific redevelopment actions mentioned include re-grading the reservoir’s steep sides and reducing water depth. These changes typically create a broader range of shallow-water edges and improve access along banks.
Important: This site does not claim exact engineering specifications because the sources do not provide them.
Today’s management focus
Habitat management focuses on controlling invasive species and selective tree thinning to improve woodland structure.
The reserve is also designated as a Biological Heritage Site by Lancashire County Council, with specific attention to mosses and liverworts.
Why “Jackhouse”?
According to the council, the reserve takes its name from Jackhouse, described as one of the oldest buildings in the area. It stands by historic local route links, with references to Pot House Lane and Cobbs Lane in the council’s history notes.