Waterway Engineering, PLLC

Family Owned Water Resource Engineering Practice

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About the firm

Waterway Engineering, PLLC is a family-owned water resource engineering practice based in Flower Mound, Texas, serving clients across Texas and California. It provides floodplain permitting and analysis, stormwater design, and dam safety and design services, helping property owners and developers navigate FEMA requirements and local regulatory processes. The practice teams with structural and geotechnical engineers on dam design projects and handles all forms of FEMA permitting, including CLOMRs, LOMRs, LOMAs, and Elevation Certificates.

Team
Micro
Firm type
Civil Engineering · Water / Wastewater Engineering

Capabilities

Floodplain Permitting and Analysis

Service website

FEMA and local floodplain permitting services for property development and existing-property flood zone amendments, including flood studies and alternative analysis.

  • Letter of Mapping Revision (CLOMR / LOMR)

    Assistance with obtaining Conditional Letters of Mapping Revision and Letters of Mapping Revision from FEMA.

  • Letter of Mapping Revision based on Fill (CLOMR-F / LOMR-F)

    FEMA permitting services to remove properties or structures from floodplain zones based on the placement of fill.

  • Letter of Mapping Amendment (LOMA)

    FEMA permitting services to amend flood maps for properties on natural high ground.

  • Elevation Certificates

    Preparation of Elevation Certificates to determine compliance with floodplain management ordinances and support flood insurance rating.

  • Local Floodplain Permits

    Obtaining municipal and county floodplain permits that meet local regulatory requirements, which are often more stringent than FEMA standards.

  • Flood Studies and Alternative Analysis

    Hydraulic and hydrologic analysis of drainage situations, providing customized solutions for properties experiencing flooding or evaluating downstream impacts.

Stormwater Design

Service website

Stormwater engineering services for development projects, including detention basin design and channel and stream restoration design.

  • Detention Basin Design

    Engineering and design of detention basins to mitigate increases in peak runoff flows and manage stormwater discharges into sewers, streets, or channels.

  • Channel and Stream Restoration Design

    Designing robust channel and stream stabilization solutions to address erosion issues or establish new channels that endure over time.

Dam Safety and Design

Service website

Dam safety assessments and design services for new and existing dams, including Emergency Action Plans, inundation mapping, spillway sizing, and outlet structure design.

  • Emergency Action Plans (EAP)

    Creating Emergency Action Plans and failure inundation maps to guide emergency responses and manage liability for dam owners.

  • Inundation Mapping

    Mapping potential flood extents resulting from dam failures to assist with risk assessment and emergency planning.

  • Dam Design

    Sizing dams and spillways, designing outlet structures, and evaluating downstream impacts in collaboration with structural and geotechnical engineers.

Downstream Assessments

Service website

Hydraulic analysis of downstream impacts from proposed development projects and dam scenarios. These assessments support flood studies, floodplain permitting, and dam safety work.

Industries

Water Resources · Land Development · Government

Projects

Southern Oaks Baptist Church LOMR-F & Floodplain Permit

Kerrville, TX · Religious · Client: Southern Oaks Baptist Church

Project details

Obtained a Letter of Mapping Revision based on fill (LOMR-F) and local floodplain permit for Southern Oaks Baptist Church in Kerrville, Texas.