Sourced from the Denverite
On Friday, City Park Golf Course finally re-opened. The municipal grounds closed in 2017, with some resistance from residents and at least one funeral for doomed trees, to make way for a renovation that was meant to create new floodwater infrastructure in the heart of the city.
Flooding is a historic problem in Denver. Though it’s dry here most of the time, waterways like the Cherry Creek frequently flowed over in the city’s early days after sudden and heavy rains. Projects like the Cherry Creek Dam helped deal with the most regular surges, but parts of town are still unprepared for the worst events today.
Sam Stevens, an engineer with Denver’s Department of Transportation & Infrastructure, said the stormwater systems between City Park and the South Platte River are not built for a 100-year flood event, the kind of big storm that is statistically supposed to happen every 100 years. But don’t let the name fool you: It doesn’t mean these storms actually happen once a century. Back in 2007, Colorado’s state climatologist said it’s not uncommon for such events to occur more than 100 times a year across the state.
The bottom line: Parts of Denver are not built to handle the biggest rainstorms, and the city has worked to deal with that vulnerability.
For the neighborhoods Stevens mentioned, the new golf course’s infrastructure should help keep them afloat during very wet times. It also features a new trash vault that will help keep garbage out of the South Platte. There’s a lot more happening there than sand traps and bogeys.
Here’s how it works.
A lot of stormwater channels run beneath the city. The water around town generally flows toward the South Platte; channels leading beneath City Park flow north and west until water meets the river. These pipes begin as far southeast as Alameda Avenue’s intersection with Quebec Street.
If there’s a huge deluge that fills these pathways, any water upstream from City Park will end up in a detention pond at the golf course. For most events, it’ll just fill up the pond and not bother golfers too much. But the system is set up to handle every drop of a 100-year event, about 67 million gallons.
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September 06, 2020 at 07:00PM
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Here's How City Park Golf Course is Already Cleaning the South Platte and Stemming Floodwaters - Living Architecture Monitor magazine
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