The scope of this particular phase of debris removal extends from just north of the southern tip of Lake Houston Park to about halfway up the east side of the 5000 acre park. See the start and stop points on the satellite image below.
The distance covered equals 2 miles as crow flies or 3 miles as the fish swims.
Here are FEMA guidelines for debris removal. Debris can include trees, sunken boats, old tires, vehicles, and other things washed downstream in floods. It is basically any debris in the water, or below the surface at a depth that is equal to the maximum draft level of the largest vessel that would use the waterway plus 2 feet. Debris also includes trees that are leaning or that pose a threat to public safety.
Beginning First Week in June
Work should start the first week in June. Authorities eventually expect the work to extend up to the Harris County line at FM1485 near the extension of the Grand Parkway.
The trees pose hazards to navigation and can form logjams that back water up in floods, threatening homes and businesses. They also can get hung up on bridge supports and the Lake Houston Dam, threatening infrastructure.
During Harvey, trees swept downstream and caught up in the supports for the Union Pacific and the southbound Highway 59 bridges over the West Fork in Humble. Both bridges had to be replaced. Trees also blocked flow at the FM1960 bridge and the rail bridge in Lake Houston.
Trees enter the waterway when floodwaters undermine river banks or simply rip trees out by their roots.
Posted by Bob Rehak on 5/29/2020
1004 Days after Hurricane Harvey and 253 since Imelda
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2018/09/SJR_525_053.jpg?fit=1800%2C1200&ssl=112001800adminadmin2020-05-29 11:24:462020-05-29 11:31:22City of Houston Contractors to Begin East Fork Debris Removal
In the 2+ years since Hurricane Harvey, many East Fork residents complained that the West Fork was getting all the media attention and remediation dollars. Imelda may have just changed that narrative. An East Fork Mouth Bar rapidly increased in size during the storm.
Rapid Increase in Sedimentation Between Royal Shores and Luce Bayou
Between Luce Bayou and Royal Shores, Josh Alberson, an East Fork resident and boater says the channel recently measured as much as 18 feet deep. Last weekend, when checking cross-sections on the depth finder of his jet boat, the deepest part of the channel measured three to four feet in that same area. Here’s what it looks like from a helicopter pointing south toward Lake Houston and the FM1960 Bridge.
It’s clear that portions of these bars preceded Imelda, just as portions of the West Fork Mouth Bar preceded Harvey. You can tell that by the vegetation. However, you can also see the immense recent growth of these bars in the areas without vegetation.
Shots taken from the boat show vast expanses of sand now clogging the East Fork.
Hundreds, Possibly Thousands of Trees Down
Giant Sand Bars Now Filling More than Half of River
Dan Huberty today announced that Ken Paxton, the state attorney general, has agreed to investigate the Triple PG mine. A spokesman for the federal Mine Safety and Health Administration said investigators were headed to the site today. The TCEQ has also launched an investigation.
Clearly, the mine is not responsible for all of the sand in the river. But its location in TWO floodways, four possible breaches, and loss of a major portion of its stockpile indicate it played some role in the massive sedimentation.
I doubt this meets the TCEQ requirements for substantial repairs.
Whether these repairs were intended to fail or whether the operator didn’t care if they failed, the result was the same. More sand in the river. And more gunk in your drinking water supply.
Posted by Bob Rehak on 10/2/2019with thanks to Josh Alberson and Charlie Fahrmeier.
764 Days after Hurricane Harvey and 13 since Imelda
All thoughts expressed in this post represent my opinions on matters of public policy and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP statute of the Great State of Texas.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2019/10/MouthBar9.27.19_1500dpi.jpg?fit=1500%2C1000&ssl=110001500adminadmin2019-10-01 21:38:002019-10-01 22:06:53East Fork Mouth Bar Rapidly Developing