Harris County Flood Facts – Did You Know?

While digging for some flood facts on the Harris County Flood Control District website, I came across a media guide written in October 2016. That may be why it was buried in the archives. The headliner – Harvey – happened just 10 months later!

Photo courtesy of HCFCD

Therefore, it contains some obviously dated references. Regardless, it also contains a gold mine of useful information about flooding. In fact, it’s a condensed, crash course in flooding – all in 16 pages. Below: some nuggets of information I pulled from it combined with some updated information.

Did You Know?

  • Harris County Flood Control District maintains more than 2,500 miles of bayous and creeks. That’s the distance from Los Angeles to New York City. Imagine mowing that three times each year during the growing season!
  • Stormwater detention basins near Brays Bayou have a combined capacity equivalent to seven “Astrodomes” — about 3.5 billion gallons!
  • Harris County’s slope toward Galveston Bay is the equivalent of putting dimes under two legs of a 6-foot long pool table. (For every mile toward Galveston Bay, our elevation drops roughly 1 foot.)
  • We receive an average of more than 4 feet of rain every year. (51.84 inches at IAH as of this writing.)
  • Before the 2018 Flood Bond, Harris County Flood Control District and its funding partners spent an average of $150 million each year for the previous 10 years to build projects that reduced flooding risks and damages. Since the flood bond, we have spent almost $23 million per month. That works out to almost twice as much per year and we haven’t even gotten into the expensive right-of-way-acquisition and construction phases of most projects yet.
  • Floodplains show areas at risk for flooding only from bayous and creeks overflowing. There are many areas at risk for flooding from storm sewers and roadside ditches exceeding their capacity that are not located in mapped floodplains.
    HCFCD only has jurisdiction over bayous and major creeks in Harris County. Generally speaking, Flood Control does not have jurisdiction over drainage for highways and streets, including roadside ditches and storm sewers. TxDOT, cities, and precincts manage those issues.

Purpose and Outline of Guide

The purpose of the Guide is to serve as a quick reference guide for reporters who cover flooding. However, it’s also written to a level that the general public will find informative easy to understand.

It provides useful information about the Flood Control District, including its purpose, history, governing body, funding sources, jurisdiction and many projects near bayous and creeks.

The guide also includes sections highlighting the flooding history of Harris County, a glossary of flood-related terms, interesting flood facts, and a section dispelling common flooding myths. More on those in a later post.

To review the entire media guide, click here.

Posted on 6/16/2022 by Bob Rehak based on information and photos in the HCFCD Media Guide

1752 Days since Hurricane Harvey.

General Land Office Launches Disaster Preparedness Campaign

The Texas General Land Office (GLO) has launched a disaster preparedness campaign called “Don’t Ignore Your Risk.” GLO developed the new outreach initiative to encourage Texans to prepare for hurricane season and stay prepared. The season began Wednesday, June 1, and runs through November 30, 2022.

“Don’t Ignore Your Risk”

The disaster preparedness campaign includes a series of video advertisements in English and Spanish. They urge Texans to take time now to:

  • Know their risk
  • Purchase flood insurance
  • Protect their home
  • Safeguard documents
  • Prepare emergency supplies
  • Map an evacuation route.

Most Homeowner Insurance Policies Don’t Cover Flooding

GLO produced a series of twelve short videos that you can watch and share on YouTube from this page. They’re powerful, poignant and compelling. Each makes a simple point about the value of preparedness. And each underscores the value of flood insurance.

Kickoff commercial in English or Spanish.

“Be prepared and have a solid plan in place prior to severe weather,” said Commissioner George P. Bush. “Knowing your risks, having an evacuation plan, gathering supplies, securing documents, and protecting your property with flood and wind insurance are key steps to being prepared for storms or wildfires.

Texans can follow the GLO on social media and find disaster preparedness information for family and pets at recovery.texas.gov/preparedness.”

Aid No Match for Flood Insurance

According to a report by the Risk Management and Decision Processes Center at The Wharton School, homeowners received an average of $8,900 in individual housing assistance from Federal Emergency Management Agency (FEMA) following Hurricane Harvey. Meanwhile, the average of flood insurance claims was $115,104.

And almost five years after Harvey, the City of Houston’s Housing and Community Development Department still has hundreds of millions of dollars left to distribute. Counting on aid, as opposed to insurance, could mean years of living in subpar conditions.

According to FEMA, just one inch of flood water can cause more than $25,000 in damage.

Five Essential Steps

The GLO encourages all Texans to prepare for hurricane season by doing the following:

Know Your Risk

Sign up for your community’s emergency warning system. The Emergency Alert System (EAS) and National Oceanic and Atmospheric Administration (NOAA) Weather Radio also provide emergency alerts.

Make Your Evacuation Plan

Check with local officials about updated evacuation shelters for this year. Know where your family will meet up if you are separated and where you will stay. Pack a “go bag” including items you need to take with you if you evacuate. A “go bag” should be easy to carry and kept in a place where you can grab it quickly. Check with drivetexas.org to find routes near you. To find a shelter near you, download the FEMA app at fema.gov/mobile-app.

Gather Supplies

Plan for your entire household including children, people with disabilities or access/functional needs, and pets. Don’t forget medications.

Secure Documents

Remember to secure copies of important personal documents. Filing for government assistance requires documentation. Be sure to keep documents in a secure location and take them with you if you need to evacuate. Place these documents in a waterproof bag and back them up on cloud storage or a thumb drive.

Protect Your Property

Shutter your home as needed. Review your flood insurance policy (or sign up for one). And declutter drains and gutters. Most homeowner and renter insurance policies do not cover flood damage. And a flood insurance policy generally does not take effect until 30 days after purchase. So, be sure to maintain your policy or get one now. Take a video “tour” of your home to document all items and the home’s current condition.

Remember, just because you may be outside of the 100-year flood plain doesn’t mean you won’t flood. Sixty-four percent of Harris County homes that flooded during Harvey were outside of the 100-year flood plain.

For more information, visit recovery.texas.gov/preparedness.

Credits

The campaign will run for the next three months. It includes social media, digital display, cable, broadcast and streaming platforms. Inspired by Senate Bill 285. It was signed into law during the 86th Session of the Legislature.

The GLO helps educate Texans about the benefits of protecting their homes and finances through flood insurance and being prepared for storms and other natural disasters.

Credit for the commercials goes to 1820 Productions for production and editing.

Posted by Bob Rehak on 6/15/22 based on a GLO press release

1751 Days since Hurricane Harvey

Demolition of Old Kingwood Middle School Beginning

Contractors have fenced off the old Kingwood Middle School and started demolishing the driveways and parking lots, including the area where the school’s new permanent detention pond will go. Meanwhile, the new Kingwood Middle School building is nearing completion behind the old one. Largely invisible from the ground behind construction fencing, the aerial photos below show the progress of construction.

Pictures Taken on 6/12/22

Main entrance to old Kingwood Middle School now fenced off and being torn up. Plans show permanent detention pond going here.

One significant difference between the old facility and the new one: a detention pond that should help reduce the risk of local flooding in an era of higher, post-Harvey Atlas-14 rainfall probabilities.

Side parking lot and temporary detention pond in foreground. Old and new buildings in background. Looking NW.
New vs. old: Three stories compared to one.
Looking SW at entire complex. Athletic fields will replace the old building in background.
New building now completely dried in. Contractors focusing on finishing the interior work.
Old building in foreground will soon be demolished leaving a vast expanse of green in front of this gorgeous community showcase.

Out with Old, In With New

All along, the plan has been to tear down the old school when the new one is ready for students. Athletic facilities, formerly behind the old building will move in front of the new building.

It’s a delicate ballet. Dozens of cars were parked along Cedar Knolls today as workers scramble to get the facility ready for the next school year.

Humble ISD’s web page for this project contains artists renderings that will help you visualize the result. Humble ISD did not return phone calls today to discuss more details about the construction, old-building demolition and a completion date. But I will keep you posted as I get more information.

To see the progress of construction, visit these pages on ReduceFlooding.com.

Posted by Bob Rehak on 6/13/22

1750 Days since Hurricane Harvey