Water supply and sewage
Cumbria sites listed in the MMP Step Three report for water and sewage industries:
| Site | Grid ref | Grade | Notes |
| Thirlmere Reservoir 1890-94 | NY 3094 1895 | ++ | England's first masonry dam |
| Thirlmere Aqueduct 1890-94 | NY 321 149 | ++ | Part of Manchester Corporation's 1890s impounding scheme. It remains in use with numerous bridges of technological and architectural interest |
| Thirlmere Aqueduct - Thickholme Bridge | NY 410 016 | +/++ | Aqueduct bridge, important architecturally |
| Thirlmere Aqueduct - pipe bridge on the R.Mint | SD 528 948 | + | Aqueduct bridge, important architecturally |
| Penrith Leat 1400-19 | NY 491 329 | R/+ | Documented medieval leat that supplied township of Penrith. SMR identifies it with Thacka Beck to NW of town. This beck is a V shaped channel that can be traced from an intake on R.Petteril to NW of Penrith |
| Haweswater Reservoir and Aqueduct 1929-41 | NY 5029 1576 | ++ | First British mass concrete buttress dam. Substantial survival of associated navvy camp |
| Roman Aqueduct | NY 6065 0600 | + | Substantial fragment of Roman leat that served Low Borrowbridge fort. Survives as well-defined earthworks |
The grading system:
++ Sites of clear national importance, for which statutory protection will normally be appropriate
+ Sites of national importance, but of less priority for resource allocation
R Sites of regional rather than national importance
FURTHER READING
Thirlmere mines (and the drowning of the valley) : Ian Tyler, Blue Rock Publications, 1999
FEATURED SITE
The Thirlmere aqueduct (web site)
Information about the Burnbanks Model Settlement built to house workers on the Haweswater Dam