River Grove Dredging Completion Delayed at Least 2 Weeks

Dredging of the River Grove Park boat launch and lagoon have been set back at least two weeks. Originally, KSA estimated that the job could finish as early as the end of March. According to KSA President Dee Price, that was an estimate from the contractor, Kayden Industries, not a contract requirement.

Lower Lake Level Required Even Smaller Dredge

According to Price, Kayden ran into a problem when the City unexpectedly lowered the level of Lake Houston about two feet. “The reduction in the water level grounded the dredging barge that they were using,” said Price. “To keep moving forward, they removed the first dredge and brought in a smaller one.”

Original dredge now sidelined. Sand stockpile in parking lot is being removed by truck to a location in Humble out of the floodplain.
New dredge is even smaller than last one but can operate in shallower water.
About one third of the lagoon in front of the boardwalk remains. Note how vegetation is already regrowing on exposed sediment.
This afternoon, the new dredge operated by the discharge pipe.
The dredge pumps water and sediment into this giant machine that resembles an oil field “shaker.” It separates solids from liquids. The solids drop out. They are then carried to the edge of the boat dock where they dry further before being hauled off.
Water minus sediment over a certain size is then returned to the river.

Contractor Will Finish Job With Smaller Dredge

“The water level is back up now,” said Price. “Kayden thinks they can finish the job using the smaller dredge, but it will take a little longer.”

With the corona virus restrictions, there is now very little activity at the park. Reminder: children should NOT use the playground equipment to help restrict the spread of the virus. Soccer leagues have also been affected. Only a handful of people were using the park this afternoon.

After Dredging

The sand pile is still blocking the boat launch. It and Kayden’s equipment will be removed from the park when dredging completes in a couple more weeks.

At that point, KSA intends to repair the asphalt damage from the heavy equipment. KSA will also replace the speed bumps with speed humps to accommodate boat trailers. All that could take till May.

Posted by Bob Rehak on 3/27/2020

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