When it rains, we pour on technology mastery and innovative solutions for water challenges.

RESPEC’s professional  engineers specialize in stormwater and drainage engineering solutions for the urban environment. Our team designs and prepares construction plans for projects ranging from small, remedial drainage needs to major channel restoration. We deliver innovative techniques to convey runoff and reduce runoff volumes and pollutants while helping clients meet local, state, and federal requirements. Career experts in the fields of urban watershed hydrology, hydraulics, and water quality, the RESPEC team has successfully completed and delivered over 500 urban watershed projects.

RESPEC’s water-resource engineers specialize in hydrology and hydraulics planning and design services. Our projects cover the full spectrum of needs, from small stormwater analyses to multimillion-dollar design and construction projects. We perform hydrologic and hydraulic modeling by using SWMM, HEC-HMS, HEC-RAS, Flo-2D, and many other programs. RESPEC is adept at designing infrastructure in urban settings; we factor in public safety, property protection, channel stability, construction costs, multiuse potential, floodplain impacts, environmental constraints,  and  stakeholder concerns.

Experienced in watershed-level best management practice (BMP) planning and designing site-specific water quality BMPs, RESPEC can deliver any type of stormwater BMP design and construction-management service that may be required.  Our stormwater design projects culminate in construction drawings and specifications that provide integrated, cost-effective, and practical solutions that help our clients to protect surface water and groundwater quality.


    • Stream Restoration
    • Detention and Water Quality
    • Stormwater Master Planning
    • Floodplain Management
    • Bridge Scour Assessment
    • Transportation Drainage
    • Drainage Design
    • Trails

Contact Us Regarding Urban Stormwater

Related Service Areas

Founded in 1969, RESPEC is a global leader in geoscience, engineering, data, and integrated technology solutions for major industry sectors.

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Water & Environment

World-class water experts, smart technology, and sustainable water management solutions that protect natural resources.
Stormwater Management, Drainage Analyses, Channel Restoration Design and Construction
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Related Products

RESPEC’s product line is geared towards making businesses and organizations better, faster, smarter, and safer. Our products benefit clients in need of greater efficiency, accuracy, and cost savings.

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BASINS integrates environmental data, analysis tools and watershed and water quality models to assist in managing watersheds and developing Total Maximum Daily Loads (TMDLs).
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Advanced five-day trainings by experts in BASINS/HSPF, the major software tools for watershed and TMDL assessments in the US and around the world.
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Fulcrum Sync for Enterprise

Fulcrum Sync for Enterprise is a robust suite of software and database tools that allows mobile field service teams to obtain the best data while meeting best practice needs.
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HSPEXP+—An enhanced expert system for calibration of HSPF.
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Hydrologic Simulation Program‑FORTRAN (HSPF)

Hydrologic Simulation Program‑FORTRAN (known as HSPF) is an analytical tool that has applications in planning, designing, and operating water-resources systems.
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Hydrologic Simulation Program–Python (HSP²)

RESPEC’s Hydrologic Simulation Program–Python (HSP²) model uses modern technology to improve upon its predecessor Hydrologic Simulation Program–FORTAN (HSPF) model.
Colorado River In Glenwood Canyon

SARA Load Reduction Tool 

SARA Load Reduction Tool — Allowing users to determine the constituent load reductions needed to reach water quality standards in model reaches within a watershed.
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SARA TS Utility

SARA Timeseries Utility supports the analysis and management of time-varying environmental data.
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Related Projects

Learn more about related projects where RESPEC has proven our expertise in this area.

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Aspen Rio Grande Park Stormwater Improvements

Engineering a water quality treatment facility at Rio Grande Park while ensuring that the park provides an aesthetic environment for visitors.
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Best Management Practices Tracking

Tracking stormwater best management practices using mapFeeder™.
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Big Sioux Water Quality Trading Project

Assessing the sediment and bacteria impairments in the Central Big Sioux River Watershed and reducing pollution through a water quality trading.
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Coal Creek Rock Creek Master Plan

Accelerating major drainageway planning studies in Colorado.
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Dead Run Stream Restoration

Assessing channel conditions in Dead Run Stream and designing stream improvements through McLean Central and Dead Run Stream Valley Parks.
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High Line Canal

Developing practical solutions for repurposing the High Line Canal for collecting and treating stormwater runoff.
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Piney Creek Major Drainageway Plan

Mitigating severe channel degradation, erosion, and heavy sediment deposition in the Piney Creek drainageway.
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SARA Water Quality Modeling Tool Development

Developing software tools to facilitate watershed modeling and planning in San Antonio River Authority’s (SARA) watersheds.
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SWMM Stormwater Planning Plug-In for Open Planning Tools

Creating new tools for computing stormwater runoff in urban areas.
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SWMM/EPANET User Interface Reengineering

Updating software user interface that is designed to manage input data, drive specialized simulations, and analyze output data that are user-friendly.
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Related News

RESPEC’s corporate newsroom features stories of success, expansion, innovation, strategy, and community impact.

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Denver Group Earns Colorado Contractors’ Association Award

The project involved providing stream-restoration services to protect critical power plant infrastructure for CSU.
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RESPEC Acquires Moser Engineering

RESPEC made a key market investment in Denver, Colorado, through the acquisition of Moser & Associates Engineering.
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RESPEC Launches HSP² Tutorials

RESPEC Launches Online HSP² Tutorials in a Collaborative Approach to Protect the World’s Water.
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RESPEC Opens Colorado Springs Office, Retains Top Talent

Local Presence and Extensive Experience Support Growth Initiative.
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RESPEC Releases HSPEXP+2.0 on GitHub

Major Upgrade Serves Worldwide Water Community Online.
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RESPEC Tool Helps Communities Manage Flood Events

Officials from Watertown got a glimpse of a new flood forecasting tool that will help their communities better manage nature’s occasional floods.
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RESPEC Welcomes Montana Talent

New Montana talent expands RESPEC's geographic footprint and strengthens our integrated solutions for natural resource development, water resources, and environmental restoration.
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RESPEC Welcomes WRC Engineering

By acquiring WRC Engineering, RESPEC diversifies its service offerings in water rights and water and wastewater engineering.
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Our Experts

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Rick Moser, PE
Vice President, Water & Natural Resources