Flood danger: There’s a new app for that

Clouds hover over the Stratosphere and the Las Vegas Strip on Monday. Almost two-tenths of an inch of rain fell in some parts of town, causing brief, localized street flooding.

One of the dumbest things I’ve ever done behind the wheel of a car occurred just outside Death Valley National Park in California many years ago.

A classic flash-flood rainstorm that only desert dwellers like us can appreciate was coming to an end, but lightning was still dancing across the peaks surrounding the area.

As I cleared the crest of a hill on a lonely state highway, I saw a creek that wasn’t on any map flowing across the pavement.

As a newcomer to the region, I wasn’t familiar with what a motorist is supposed to do when that happens. So, I blasted through the water.

Was I ever lucky.

Not only did my car safely hydroplane across the unexpected waterway to land, but I didn’t pitch out of control, hit a rock or anything else and the force of the flowing water didn’t push me downstream to a worse fate.

It was an extremely irresponsible move — just like the dozens that seem to occur regularly whenever the clouds dump most of Southern Nevada’s annual rainfall in an hour or less.

One year ago, when water cascaded down Kyle Canyon Road weeks after the Carpenter 1 fire on Mount Charleston, 18 swift-water rescues were made in one day. Fortunately, in the July 28 encore rainstorm performance, there was only one.

I like to think that people are getting smarter and taking warnings issued by the Clark County Regional Flood Control District more seriously and that the National Weather Service’s “Turn Around, Don’t Drown” campaign is sinking in.

Longtime Las Vegans know that in the past, the two worst places in town during a downpour were the Charleston Boulevard railroad overpass near Interstate 15 and the parking garage at the Quad, formerly the Imperial Palace.

Thanks to work by the Flood Control District, Southern Nevada’s streets are becoming more manageable when the monsoon season turns local roads into waterways.

After last week’s deluge, I asked Kelsey Hand, a spokeswoman for the district, how flood-control projects under construction had weathered the latest storms.

Just about everyone living in northwest Las Vegas was concerned that all the work that had been done on flood mitigation in the vicinity of Grand Teton Drive and U.S. Highway 95 had been ruined by flooding, especially after all the reports about access issues in the Rainbow neighborhood of Mount Charleston.

But Hand said everything worked as planned. The only problem is that the project isn’t done yet.

“There was someone in a helicopter flying over the area who said all the water flowed into the underground pipes west of Highway 95, just as designed,” she said.

But east of U.S. 95, not so much. Flood control pipelines have yet to be built east of the highway so there’s still street flooding in those neighborhoods. Work isn’t expected to be completed until next year.

Hand said many people apparently don’t realize that streets are a part of the flood-relief network — they’re supposed to carry water.

“Streets are built to slope toward the curb so that water flows to the gutters before finding its way to the pipeline and channel system,” she said.

So that means some streets will continue to be waterways — hopefully creeks and streams and not rivers — whenever it rains hard in a localized area.

Hand said it will continue to be a characteristic of our desert environment.

The worst locations for potential flooded streets is anywhere that sporadic development is occurring.

Hand said when there are neighborhoods under construction and vacant lots between development, there’s going to be a potential for flooded streets.

But there is a way to check on flooding before you get into your car.

About a year ago, the Flood Control District unveiled a smartphone app called Flood Spot. It’s available for free through the Apple App Store and the Android Play Store.

The key feature of the app is a real-time traffic map of the Las Vegas Valley that identifies locations of flooded streets for motorists to avoid.

In a year, there have been 3,000 downloads of Flood Spot; on the Monday of our most recent street flooding, 200 were downloaded.

The app has an interactive side to help the Flood Control District.

A tab called “Report Flood” enables a motorist to photograph abundant water on the street with comments to the district so that it can consider fixes to the current system.

The app also stores flood facts, safety tips, the current weather forecast, information on flood insurance and details on keeping harmful substances out of flood channels since all water eventually flows into our drinking water supply of Lake Mead.

Get it. It’s a free and easy download.

If I would have had it years ago, I probably wouldn’t have tried crossing the flowing water in Death Valley.

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