Harris County has 200 drainage projects on a map and no money behind any of them

Harris County Engineering has identified 200 drainage project areas across unincorporated Harris County and has money for none of them. At the county’s own estimate of $1 million to $20 million a project, the list it plans to hand Commissioners Court by March is worth somewhere between $200 million and $4 billion.

Why it matters

About two thirds of Harris County’s 1,800 square miles sits outside any city limit, and that unincorporated territory is what this plan covers. A ranked list built on claims data and modeling beats the way drainage money has moved here.

A ranked list with no money behind it is also the document an official points at the next time a street floods. The grant that paid for the planning is spent. The construction is not funded.

By the numbers

200 project areas identified, 50 in each of four regions, per Reduce Flooding’s account of the September 22 presentation to Commissioners Court.
60 of those, 15 per region, advance to enhanced modeling. That is 30 percent of the list.
$1 million to $20 million, the expected cost range per project. Two hundred projects at that range is $200 million to $4 billion. That multiplication is this desk’s, not the county’s.
$0 identified for construction of any project on the list.
$12.5 million, the Texas General Land Office grant that paid for the planning work.
$9,635,733, a separate federal PROTECT grant announced April 23, 2024 for a Harris County road drainage master plan covering the same unincorporated areas. Neither document says whether it is the same effort.
About 1,200 square miles in scope, two thirds of the county’s roughly 1,800.
January 2027, enhanced modeling due. Before March 2027, final report to Commissioners Court. End of October, the public comment window closes.
$2.5 billion, the flood bond Harris County voters approved August 25, 2018, per the Flood Control District.

What the coverage buried

Reduce Flooding did the reporting here. It named the program manager, the four regional engineering firms, the five ranking criteria and the funding gap, which is more than most coverage of a planning study carries.

The one step it did not take is the multiplication. The post gives 200 project areas and a $1 million to $20 million range and never puts the two together. Two hundred times the bottom of that range is $200 million, and that is the number a reader needs to hold next to the zero dollars in hand.

The other side

Planning before spending is the correct order, and this desk has said so. Harris County has repeatedly approved flood work whose cost is not stated in the agenda item. A criteria driven list built on flood claims, MAAPnext modeling, drainage capacity, homes removed from flooding and flooded roadway length is the cure for exactly that habit.

The answer is that this is the second planning grant in about two years for drainage in the same unincorporated territory, and the construction queue it would join is already short of money. The county’s largest single flood project, the Lake Houston gate replacement, is $195 million short on a $315 million price.

What to watch

End of October. The public comment window closes. Comments go on an online map the county has published for the plan.
January 2027. Enhanced modeling on the 60 selected projects is due.
Before March 2027. The final report reaches Commissioners Court. Watch whether the item that carries it names a dollar figure and a funding source, or only a list.
Whether the county publishes which 200 areas made the list and which did not, and the criteria scores behind the cut.

Bottom line

This is the right kind of document arriving the wrong way around. Two hundred projects, four engineering firms, two planning grants and no construction money is a map, not a plan. The test is the March item. If it reaches Commissioners Court without a total and a funding source, the county will have spent two years and roughly $22 million confirming that unincorporated Harris County floods.

Sources

Editorial