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Summary

A leat of probable post-medieval to 19th century date is visible on aerial photographs of 1946 as an earthwork on the north-facing slopes overlooking Smallhanger Brook, east of Old Newnham, Sparkwell. The earthwork remains partly visible on visualisations derived from lidar data captured between 1998 and 2017 but has probably been partly levelled to the western end.

Location

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

• LEAT (Post Medieval to XIX - 1540 AD to 1840 AD (Between))

Full description

Ordnance Survey, 1880-1899, First Edition Ordnance 25 inch map (Cartographic). SDV336179.

The visible earthworks correspond with a channel depicted on the Ordnance Survey 1880s First Edition 25inch map.

Royal Air Force, 1946, RAF/106G/UK/1190, RAF/106G/UK/1190 RP 3249-3250 27-FEB-1946 (Aerial Photograph). SDV363067.

A channel is visible as an earthwork.

Environment Agency, 1998-2017, LiDAR DTM data (1m resolution) EA: South Devon Coast to Dartmoor, LIDAR SX5557 Environment Agency DTM 01-JAN-1998 to 31-MAY-2017 (Cartographic). SDV361470.

Ordnance Survey, 2019, MasterMap 2019 (Cartographic). SDV362729.

The visible earthworks correspond with a channel depicted on the current Ordnance Survey MasterMap base map.

Hegarty, C., Knight, S. and Sims, R., 2019-2020, The South Devon Coast to Dartmoor Aerial Investigation and Mapping Survey. Area 2, Avon Valley to Plymouth (AI&M, formerly NMP) (Interpretation). SDV362982.

A curvilinear channel is visible on the north-facing slopes overlooking Smallhanger Brook as an earthwork up to 3m wide and over 520m long.
The visible earthwork corresponds with a water channel or leat depicted on the 19th and early 20th century maps available to the survey, probably fed by a spring that sises south of Hemerdon Farm to the east.
The channel has been bisected by the route of the B3417, and presumably culverted, but remains depicted on the current OS MasterMap base map to circa SX55595730 where it turns north to feed back into the Smallhanger Brook.
West of this point circa 240m of the channel has probably been near levelled. The easternmost 270m of the earthwork remains partly visible on visualisations derived from lidar data captured between 1998 and 2017.

Sources / Further Reading

Associated Monuments: none recorded

Associated Finds: none recorded

Associated Events

• EDV8098 - The South Devon Coast to Dartmoor Aerial Investigation and Mapping (formerly NMP) Survey, Area 2, Avon Valley to Plymouth (Ref: ACD2040)

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