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| weir (a low dam built across a river to raise the level of water upstream or regulate its flow. NOED Alexander Demidov) | |||
| retaining dam | |||
| stop bank | |||
| retaining weir | |||
|
| |||
| weir (a low dam built across a river to raise the level of water upstream or regulate its flow. NOED Alexander Demidov) | |||
| retaining dam | |||
| stop bank | |||
| retaining weir | |||