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Connswater drain flap, Belfast (March 2017)
by Albert Bridge
for square J3674
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Storm drain
by Bob Harvey
for square SP7387
Closed with a flap gate or flap valve, to prevent access by rodents or backflow... (more)
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Drain flap, Coleraine
by Albert Bridge
for square C8532
There are several new drains immediately downstream of the new culvert under... (more)
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Ames Crosta Mills drain flap, Dundonald (December 2014)
by Albert Bridge
for square J4174
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Drain flap, Knock River, Belfast
by Albert Bridge
for square J3773
A drain flap, with the inscription “Hyaro 2 DN150” in the floodwall on the left... (more)
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"Stanton" valve flap, Belfast
by Albert Bridge
for square J3371
The flap on a Stanton valve, at the Lagan end of a storm drain under the... (more)
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Drain entering Greenoak Goit
by Christine Johnstone
geograph for square SE8125
The drain flap stops water backing up into the smaller drain. The land is about... (more)
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Drain flaps, Kelfield Clough, River Ouse
by Christine Johnstone
geograph for square SE5838
Stopping the high tide from entering the land drainage system.
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Flap valve on a lake shore, at St Aidan's
by Christine Johnstone
geograph for square SE3827
Flap valves [or gates] operate under very low heads of water, in gravity flow... (more)
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Former millrace, Muckamore (2)
by Albert Bridge
for square J1685
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The Connswater, Belfast - March 2017(7)
by Albert Bridge
for square J3674
The eastern (East Bread Street) side of the Connswater - a drain with a Ham... (more)
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Drain flaps, east bank of the River Soar
by Christine Johnstone
geograph for square SK4927
A few metres upstream of the confluence with Kingston Brook.
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Drain flap, south bank, River Ure
by Christine Johnstone
geograph for square SE3866
Just west of the A1(M).
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Drain flaps on the sluice next to Reach Lode Lock
by Christine Johnstone
geograph for square TL5369
Preventing floodwater from the River Cam entering Reach Lode. The small brick... (more)
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