Iron Creek flooding solution sought
Published 5:09 pm Friday, September 20, 2013
Some Iron Creek subdivision residents might say that when it comes to heavy rains there is a “water, water everywhere” problem, especially with flooded streets.
One option to alleviate one flooding problem in the Iron Creek subdivision is to raise Ore Court, a road that serves the subdivision, but that option could have minimum results, according to a memorandum included in the Washington City Council’s agenda packet for its meeting Monday evening. The city has been wrestling with flooding in the residential development for about 10 years.
The city has taken several steps to alleviate flooding there, and it continues to seek solutions that would lessen the impact of flooding on Iron Creek residents, their homes and streets in the subdivision.
“While raising the road would mitigate flooding during smaller storms, it would not be effective for storms equal to or greater than the 10-year storm,” wrote John A. Core, an engineer with The Wooten Co., in a letter to Allen Lewis, the city’s public-works director.
The city hired The Wooten Co. to evaluate flooding issues during rain events along Ore Court, with that evaluation specifically looking at the possibility of raising Ore Court. A 10-year storm occurs, on average, once every 10 years.
Core’s letter estimated the cost of elevating Ore Court to minimize the flooding effects at $425,000 (entire project expenses).
Core also noted that other options to alleviate flooding in Iron Creek. Those options included large pumping facilities and such facilities combined with berms. Those options do not appear to be economically feasible, Core wrote.