Rainwater drainage system construction. Workers installing plastic tubing in the ground to act as drainage to reduce standing water after rainfall. The tubes control surface flooding by allowing water to migrate to sub-surface soil layers,greatly reducing storm water runoff into the sewer system. Photographed in August 2016,at Denby High School,in Detroit,Michigan,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 3584 px × 5377 px |
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