Sepulveda Dam

Dam din Sepulveda busasshen dam ne da Rundunar Injiniya ta Sojojin Amurka ta gina don hana ruwan ambaliyar hunturu a gefen kogin Los Angeles. An kammala shi a cikin 1941, akan farashin $6,650,561 daidai da $137,766,000 a cikin 2023, yana kudu da tsakiya a kwarin San Fernando, kusan mil takwas (kilomita 13) gabas da tushen kogin a yammacin ƙarshen kwarin, a cikin Los Angeles, Kalifoniya. Dam din Sepulveda, tare da Hansen Dam da ke arewacin kwarin San Fernando, an gina shi ne don mayar da martani ga ambaliya mai tarihi na 1938 wanda ya kashe mutane 144. Ƙarfin dam ɗin na ƙafa 17,300-acre (21,300,000 m3) zai ba shi damar riƙe kusan 2+1⁄4 inci (57 mm) na gudu daga murabba'in murabba'in 141 (370 km2) na magudanar ruwa. An sanya shi a inda yake a wancan lokacin gefen birnin. Gabashin madatsar ruwan, kogin ya cika makil da wata ƴar ƴar ƴan tasha saboda girman birnin. Basin da ke kula da ambaliyar ruwa wani yanki ne mai girma kuma ba a gina shi a tsakiyar kwarin, ana amfani da shi galibi don mafaka da namun daji. Bayan ambaliya ta 1938 na Kogin Los Angeles, ƙaddamar da duk busassun wanke-wanke na kwarin da aka haifar da busasshiyar ƙasan kogin da aka yi da kankare. A halin yanzu ana rarraba waɗannan a wani yanki azaman hanyoyin haɗin keke. Tarihi Lokacin da ambaliya ta 1914 ta yi sanadin asarar dala miliyan 10 ga yankunan da ke tasowa a cikin ruwa, an fara zanga-zangar nuna rashin amincewar jama’a game da daukar matakai don magance matsalolin ambaliya da ke faruwa. A cikin shekara ta gaba, an kafa Gundumar Kula da Ambaliyar Ruwa ta Los Angeles. Wasu daga cikin yunƙurin shawo kan ambaliyar ruwa na farko sun haɗa da ƙananan wuraren samar da tashoshi da kuma tsara wuraren da ake buƙata. Masu biyan haraji sun amince da batutuwan haɗin gwiwa a cikin 1917 da 1924 don gina manyan madatsun ruwa na farko. Duk da haka, ba su son samar da isassun kuɗi don abubuwan da ake buƙata da kuma abubuwan more rayuwa a ƙasa na waɗannan madatsun ruwa. Bayan wasu ambaliyar ruwa guda biyu masu barna a cikin 1930s, musamman ambaliyar ruwa ta 1938, an nemi taimakon tarayya. Rundunar Sojojin Injiniyoyi sun taka rawar gani wajen ratsa kogin tare da gina madatsun ruwa da dama wadanda za su samar da magudanan ruwa a bayansu. Tashar tashar ta fara ne a cikin 1938, kuma zuwa 1960 an kammala aikin don samar da hanyar ruwa mai nisan mil 51 (kilomita 82) na yanzu. A cikin wannan aikin akwai Hansen Dam, wanda aka kammala a 1940 sannan Sepulveda Dam ya biyo baya a 1941. A cikin 1973, an gina Burbank Blvd ta hanyar Sepulveda Basin, kuma an gina Woodley Ave a cikin wurin shakatawa a cikin 1975. Manazarta Manazarta