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City approves flood plan

Jason Ferguson
Published: Thursday, June 5th, 2014

A plan to mitigate the effects a flood could have on the City of Custer is now in the application phase after the Custer City Council approved the plan at Monday evening’s meeting of the council.
The plan, known as the pre-disaster mitigation plan, was presented by Dirk Jablonski, principal engineer for FourFront Design, Inc., out of Rapid City, the firm helping Custer through the process. The city was recently awarded $77,000 through a hazard mitigation grant program to put together an application that involves several steps, perhaps the most important of which is a cost/benefit analysis of any plan. For any grant to be awarded, the plan must show there is more benefit than cost to the plan.
The plan laid out by Jablonski called for $600,000 in improvements in a few areas in Custer. Jablonski said all of the water crossings in town were studied for both Laughing Water and French creeks, as well as West Dam. The goal, he said, is for Custer to get the most bang for its buck by pinpointing the areas of town that would be most affected by a flood and try to lessen that effect. Eliminating it completely is not possible, he said. Possible flooding of 10-, 15-, 100- and 500- year storms were studied.
Among the improvements Jablonski proposed was widening 200 feet of the channel of French Creek just up from 4th Street to increase its capacity while also doing the same thing just off 8th and Washington streets. Another proposed improvement would be in the area of the Comfort Inn where new culverts will be added to move the water more quickly.

A plan to mitigate the effects a flood could have on the City of Custer is now in the application phase after the Custer City Council approved the plan at Monday evening’s meeting of the council.

The plan, known as the pre-disaster mitigation plan, was presented by Dirk Jablonski, principal engineer for FourFront Design, Inc., out of Rapid City, the firm helping Custer through the process. The city was recently awarded $77,000 through a hazard mitigation grant program to put together an application that involves several steps, perhaps the most important of which is a cost/benefit analysis of any plan. For any grant to be awarded, the plan must show there is more benefit than cost to the plan.

The plan laid out by Jablonski called for $600,000 in improvements in a few areas in Custer. Jablonski said all of the water crossings in town were studied for both Laughing Water and French creeks, as well as West Dam. The goal, he said, is for Custer to get the most bang for its buck by pinpointing the areas of town that would be most affected by a flood and try to lessen that effect. Eliminating it completely is not possible, he said. Possible flooding of 10-, 15-, 100- and 500- year storms were studied.

Among the improvements Jablonski proposed was widening 200 feet of the channel of French Creek just up from 4th Street to increase its capacity while also doing the same thing just off 8th and Washington streets. Another proposed improvement would be in the area of the Comfort Inn where new culverts will be added to move the water more quickly.

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