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Storm drains are often unable to manage the quantity of rain that falls during heavy rains and/or storms. When storm drains are inundated, basement and street flooding can occur. Unlike catastrophic flooding events, this type of urban flooding occurs in built-up areas where human-made drainage systems are prevalent. Urban flooding is the ...
For some fish species, an inundated floodplain may form a highly suitable location for spawning with few predators and enhanced levels of nutrients or food. [50] Fish, such as the weather fish, make use of floods in order to reach new habitats. Bird populations may also profit from the boost in food production caused by flooding. [51]
Storm drain under construction in 1936 Following the disaster, the U.S. Army Corps of Engineers and the County of Los Angeles (with the Los Angeles County Department of Public Works ) built a flood control system of catch basins and concrete storm drains, designed to prevent a repeat of the 1933-1934 disaster.
For comparison, the total area of the nation is about 3,800,000 square miles (9,800,000 km 2), so there are perhaps 3,000 stream reaches that drain watersheds of 1,000 square miles (2,600 km 2) and 300,000 reaches that drain 10 square miles (26 km 2).
Much of the area to the south and west of Boston, some 91 square miles (240 km 2), was inundated by the Great Flood of 1763, [4] and against this background, the Black Sluice Drainage Act 1765 (5 Geo. 3. c. 86 Pr.) was obtained which created the Black Sluice Commissioners, giving them power to raise taxes and authority to carry out drainage works.
The Grand River went above bankfull on the night of March 24, rising slowly for the next four days. It broke the previous high-water mark by over 60 cm (2.0 ft), and was considered a once in 100 year flood. Over one-half of the population on the west side of the river was inundated. On the east bank of the river, numerous factories went underwater.
Many neighborhoods around Red Chute Bayou and Flat River in Bossier Parish were quickly inundated and evacuated. In the neighborhood of Golden Meadows in Bossier City , the rapid rainfall overwhelmed storm drains and stranded people in their homes with up to four feet of water in some areas.
Stormwater carrying street bound pollutants to a storm drain for coastal discharge. With less vegetation and more impervious surfaces (parking lots, roads, buildings, compacted soil), developed areas allow less rain to infiltrate into the ground, and more runoff is generated than in undeveloped conditions. Additionally, passages such as ditches ...