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Tulsa's government responded to the 1970 flood by joining the "emergency program" of the National Flood Insurance Program (NFIP) and promising to adopt federal floodplain regulations. In August 1971, NFIP issued its block rate maps. A month later, on Labor Day, Flat Rock, Bird and Haikey creeks flooded, affecting many suburban communities.
The 1984 flood demonstrated that emergency managers could not receive accurate and adequate data quickly enough about the progress of flooding from airport radars, updated hourly. The University of Oklahoma and Oklahoma State University collaborated with the Climatological Survey and other public and private agencies to create the Oklahoma ...
Fort Cobb Reservoir has a total capacity of 143,740 acre-feet (177,300,000 m 3) and covers an area of 5,956 acres (24.10 km 2) at top of flood pool level. The uncontrolled morning-glory spillway in the left abutment consists of a concrete intake structure, concrete conduit, and concrete chute and stilling basin.
In Oklahoma, Indigenous communities are the most likely to be at risk of flooding, with one recent study showing the danger increases by more than five times when compared to surrounding areas ...
However, flood control did not seem to be considered a serious problem until Tulsa's population growth spilled out into the Bird Creek watershed east and north of downtown Tulsa. The city issued its first land-use plan after a serious flood along the Arkansas River in 1923, but this plan was aimed more at preventing flooding along the Arkansas ...
[5] [4] The first rains associated with the flood occurred on May 18, when a squall line moved across eastern Oklahoma and western Arkansas. Additional showers immediately preceding and succeeding the squall enhanced rainfall totals. [5]: 23 Between May 20–21, another storm system moved from the Rocky Mountains into Oklahoma.
Due to its potential for major flooding events, the city has developed one of the most extensive flood control systems in the nation. [58] A comprehensive flood management plan was developed in 1984 following a severe flood caused by a stalled weather front that dropped 15 in (380 mm) of rain overnight, killing 14, injuring 288, and destroying ...
Tenkiller Ferry Lake, or more simply, Lake Tenkiller, is a reservoir in eastern Oklahoma formed by the damming of the Illinois River.The earth-fill dam was constructed between 1947 and 1952 by the United States Army Corps of Engineers for purposes of flood control, hydroelectric power generation, water supply and recreation.