Pueblo: City study contradicts FEMA floodplain assessment

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From The Pueblo Chieftain (Chris Woodka):

“We’ve restructured our estimates for the basin using FEMA’s recommendations and determined the peak flow would be much less,” said Dennis Maroney, Pueblo stormwater director. “Now we have to make sure the model was applied correctly.” The city’s engineers determined the peak flow would be about 11,000 cubic feet per second, or half the amount predicted by FEMA’s consultants. “As you reduce the flows in Wild Horse Creek, the flood plain drops. It wouldn’t overtop the levees and wouldn’t flood Downtown,” Maroney said. The catch is getting FEMA to accept those findings. FEMA officials in April said they would work with the city in determining the correct numbers. The city also is developing plans for remediation if its numbers are not accepted or further modified.

Fort Carson contains about 12 square miles of the 80-square-mile Wild Horse Dry Creek drainage basin and Pueblo West covers most of the remaining area upstream from Pueblo. The creek enters the Arkansas River just downstream from City Park. The city is hoping to develop cooperative regional detention projects with Fort Carson and Pueblo West, but does not yet have information about where such projects would be located, Maroney said.

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