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West Lea Drainage Improvements

This project is part of a collaborative effort with the City of Pearland

The West Lea Drainage Improvements project will be a multi-phased project that will incorporate improvements to the interior of the West Lea subdivision drainage system, the drainage ditch that conveys storm water from the subdivision, and Mary’s Creek which is the receiving stream.

Mary’s Creek will be reconstructed to install in-line storage through benching sections on the north bank of the channel.  The extents of the channel benching will start from the weir at the West Mary’s Detention Basin to the channel crossing at Magnolia Pkwy.  A total of approximately 3,800 linear feet of benching will be constructed with stop blocks placed at an interval of approximately 500 feet in order to keep the channel conveyance similar to the existing condition, thereby creating additional storage in the floodplain with the benched sections.

The Mary’s Creek benching project will coincide with the rehabilitation of the West Lea Ditch and drainage improvements within the West Lea subdivision.  These improvements will not alter the runoff volume from the West Lea subdivision, only the timing of inflow into Mary’s Creek,  reducing the contribution of runoff to Mary’s Creek during peak times.  The benching section on Mary’s Creek will provide additional capacity without impacting the 100-year storm frequency.

Installation of Drainage Improvements

Sand Pit Policy

The District has adopted a new Sand Pit Policy for all sand pit’s within our jurisdiction effective December 1, 2021.  Each sand pit is required to renew their discharge permit through the District on an annual basis.  See the attached document below.

Acknowledgement Form

An Acknowledgement Form will need to be filled out and signed for all new and re-development.

Maintenance Declaration

A Maintenance Declaration will be required for all new and re-development.  The Maintenance Declaration must be signed and notarized by the owner of the property and the original delivered to the District offices.

With the Declaration a developer will need to provide a Maintenance Plan (example below) and exhibit (survey) for the property.  All three documents will be filed in the Real Property Records with Brazoria County.

Standard District Notes

Standard District Notes

Notes and clarifying statements shall be entered on the Drainage Plan and Plat including any deed restrictions to ensure compliance with all drainage regulations and requirements.

*Updated November 14, 2023.

Sec. 5.I. – Final Signature Block

Section 5.I.

Final Signature Block

Signature block to be added to final Drainage Plans and Plats.  This new Final Signature is effective August 1, 2021.

Master Drainage Plan

The full 4-volume Master Drainage Plan can be viewed at the District offices: 4813 W. Broadway, Pearland, TX  77581

Coronavirus (COVID-19)

Coronavirus Updates

Brazoria Drainage District No. 4 is closely monitoring all Coronavirus (COVID-19) information from public officials and will make any necessary adjustments to our daily business.  The District is following the 6′ social distancing guidelines for all in person meetings and all visitors to the District offices must wear a mask.

For more information please visit the following links:

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