OUR EXPERTISE

Complex water challenges.
Clear engineering solutions.

Drainage, modeling, flood mitigation and infrastructure design — connected from the first study to permitting.

EXPLORE OUR SERVICES

The right expertise.
At every project stage.

We support public agencies, private developers, architects and engineering partners throughout Texas. Explore each discipline below to see how it connects to your project.

Illustrative grass-lined drainage channel and culvert crossing
01 / STORMWATER DRAINAGE

Practical drainage. From site to outfall.

We evaluate how water moves through a site, neighborhood and receiving system, then develop drainage improvements that fit the project’s constraints.

HOW WE HELP

Runoff and drainage-impact analysis • Detention and conveyance evaluation • Storm sewer, culvert and ditch design • Grading and permitting support

02 / HYDROLOGY & HYDRAULICS

Understand the water. Inform the design.

Hydrologic and 1D/2D hydraulic modeling help evaluate existing conditions, test alternatives and document potential impacts on nearby properties and receiving channels.

HOW WE HELP

HEC-HMS and HEC-RAS • XPSWMM and InfoWorks ICM • Watershed and floodplain analysis • Model interpretation and technical reporting

Conceptual terrain model illustrating watershed and hydraulic analysis
Illustrative creek corridor and surrounding floodplain landscape
03 / FLOOD MITIGATION

A clear path through floodplain challenges.

We bring together floodplain analysis, mitigation planning and regulatory coordination to help clients understand project impacts and develop a documented path toward permitting.

HOW WE HELP

Floodplain mapping and management • Detention and mitigation studies • No-Rise certification • CLOMR/LOMR submittal support

04 / INFRASTRUCTURE PLANNING & DESIGN

Plan for growth. Design for resilience.

From early feasibility through detailed design, we connect drainage, grading and utility considerations so infrastructure and development projects can move forward with a coordinated approach.

HOW WE HELP

Drainage master planning • Feasibility and conceptual assessments • Land development and grading • Roadway drainage and utility coordination

Illustrative street, curb inlet and sidewalk infrastructure
CONNECTED CAPABILITIES

Better data.
Better decisions.

GIS & spatial analysis

ArcGIS Pro mapping, spatial data analysis and clear visualizations to support engineering decisions.

Water & wastewater modeling

Water distribution, water quality and wastewater modeling support for infrastructure planning.

BUILD WITH CONFIDENCE

Let’s move your project forward.

Tell us where you are, what you are planning, and what you need to solve.

AARP CONSULTANTS

Civil engineering for resilient communities.

Katy, Texas · Serving public and private clients across Texas

© 2026 AARP Consultants, LLC. All rights reserved.

OUR COMPLETE SERVICE RANGE

Expertise for every stage.
One connected practice.

From early feasibility and system modeling to detailed civil design, permitting and asset information, our services span three complementary areas of practice. Select any service below to explore how we can help.

01 / UNDERSTAND & PLAN

Planning and Modeling Services

Conceptual terrain model illustrating watershed and hydraulic analysis

01 / INSIGHT BEFORE INVESTMENT

Planning & Modeling

Understand the site. Explore the possibilities.

EXPLORE OUR PLANNING & MODELING EXPERTISE

Hydrology and Hydraulic (H&H) Modeling

We develop hydrologic and hydraulic models to understand runoff, flow paths, water levels and system capacity. Existing and proposed conditions can be compared to inform drainage improvements, evaluate flood impacts and support engineering decisions.

Infrastructure Planning and Drainage Master Plan Studies

We assess drainage and infrastructure needs across sites, neighborhoods and larger service areas. The work brings together existing conditions, capacity constraints and improvement alternatives to help clients prioritize projects and plan phased investment.

Feasibility Studies and Conceptual Design Assessments

We examine site conditions, available information and project constraints before detailed design begins. Concept layouts and preliminary assessments help identify feasible approaches, information gaps and the next engineering steps.

Drainage Impact and Mitigation Analysis

We evaluate how proposed development or improvements may change runoff and affect surrounding drainage systems. The analysis helps identify detention, conveyance or other mitigation measures and document the basis for the proposed approach.

Stormwater Detention Conveyance Evaluations

We assess detention storage, outlet performance and the capacity of channels, pipes and other conveyance features. Comparing alternatives helps determine how runoff can be stored and released within the constraints of the receiving system.

Floodplain Mapping and Management Studies

We map flood hazards and interpret modeled water levels, terrain and floodplain boundaries. These studies help clients understand site exposure, evaluate development constraints and support floodplain management decisions.

Water Distribution and Water Quality Modeling

We use modeling to evaluate water distribution system behavior, including flow, pressure and water quality considerations appropriate to the scope. Results can support capacity planning, identify system constraints and help compare improvement alternatives.

Wastewater Modeling

We assess wastewater collection system flows and hydraulic capacity using the available network and operational data. Modeling helps identify bottlenecks, evaluate proposed connections and compare improvements needed to support future demand.

GIS Mapping and Spatial Data Analysis

We organize and analyze geographic information such as terrain, drainage networks, land use and infrastructure. GIS maps and spatial datasets help teams understand site relationships, identify constraints and communicate engineering findings.

Data Visualization and Evaluation

We turn technical datasets and model results into clear maps, charts and visual summaries. The work helps clients compare conditions and alternatives, recognize patterns and understand the information behind an engineering recommendation.

02 / DEVELOP & DESIGN

Design Services

Illustrative street, curb inlet and sidewalk infrastructure

02 / IDEAS INTO INFRASTRUCTURE

Design Services

Shape the solution. Resolve the details.

EXPLORE OUR DESIGN EXPERTISE

Stormwater Drainage Design

We develop drainage designs that connect runoff collection, conveyance and outfall conditions. The scope may include storm sewers, inlets, culverts and roadside ditches, coordinated with site grading and the receiving drainage system.

Roadway and Site Grading Design

We develop roadway and site grading plans that coordinate elevations, drainage paths and proposed improvements. The design considers existing ground, access, adjacent properties and utility constraints to support a workable site layout.

Flood Control and Channel Improvements

We evaluate and design channel and flood-control improvements to address conveyance constraints and flood risk. Proposed measures are considered in relation to upstream and downstream conditions, site limitations and applicable review requirements.

Detention Basin Design

We develop detention basin layouts, storage configurations and outlet designs to manage stormwater runoff. The design coordinates basin geometry, grading, discharge controls and receiving-system conditions, supported by engineering calculations.

Stormwater Pollution Prevention Plans (SWPPP)

We prepare project-specific stormwater pollution prevention plans to address erosion, sediment and construction-related pollutant controls. Plans identify proposed control measures and implementation considerations for the project’s construction activities.

Construction Plans, Specifications, and Bid Package Preparation

We prepare coordinated civil drawings, technical specifications and bid documents for the agreed project scope. These materials communicate the design, define the work and help owners and contractors understand project requirements during procurement.

03 / COORDINATE & MANAGE

Management and Compliance Services

Concept illustration of engineers coordinating site plans, mapping and project documentation

03 / COORDINATION THAT CONNECTS

Management & Compliance

Navigate requirements. Keep the work moving.

EXPLORE OUR MANAGEMENT & COMPLIANCE EXPERTISE

Floodplain Development Permitting and Regulatory Coordination

We support floodplain development applications and coordinate technical information with reviewing agencies. Services may include engineering exhibits, supporting analyses and responses to review comments to help move a project through the permitting process.

Stakeholder and Community Engagement

We help project teams explain engineering issues, alternatives and proposed improvements to stakeholders and community audiences. Clear exhibits and technical input support informed discussion and help bring relevant feedback into project development.

Interactive Database and Asset Management Systems

We organize infrastructure and project information into structured databases and interactive asset information tools. Linking records, locations and relevant attributes helps clients retrieve information, maintain consistent records and support planning and maintenance decisions.

TOOLS IN SERVICE OF JUDGMENT

The right method.
For the right question.

Hydrology & hydraulics
HEC-HMS · HEC-RAS 1D/2D · XPSWMM · InfoWorks ICM

Spatial analysis & civil design
ArcGIS Pro · Civil 3D

Software selection follows the site, available data, project scope and reviewing agency requirements.

Woman water-resources engineer examining watershed maps and hydraulic modeling displays.

© 2026 AARP Consultants, LLC. All rights reserved.

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