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Progression Engineering

Designing stormwater, transportation, and infrastructure to move our world forward, with equity and sustainability in mind.

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About the firm

Progression Engineering is a civil engineering consultancy based in Northern California. It provides civil engineering design with a focus on complete streets, active transportation and trails, stormwater management and green infrastructure, utilities design, ADA compliance, and grading and earthwork. The practice holds Professional Engineer licensure in California and Hawaii and holds the ISI Envision Sustainability Professional (ENV SP) credential.

Firm type
Civil Engineering

Credentials

Professional Engineer (PE) - California · Professional Engineer (PE) - Hawaii · ISI Envision Sustainability Professional (ENV SP)

People

Darren ChoyFounder and Principal

Capabilities

Complete Streets

Service website

Work in this area is organized into supported delivery tasks.

  • Designs Safe

    Support includes Designs safe.

  • Accessible

    Support includes accessible.

  • Integrated Roadway Corridors For All Users

    Support includes integrated roadway corridors for all users.

  • Supporting Multimodal Transportation

    Support includes supporting multimodal transportation.

  • Urban Street Rehabilitation

    Support includes urban street rehabilitation.

Active Transportation and Trails

Service website

Develops pedestrian pathways, multi-use trails, and bicycle infrastructure to enhance community connectivity and active mobility.

Stormwater Treatment, Green Infrastructure, and Low Impact Development (LID)

Service website

Integrates environmentally conscious civil solutions to manage runoff, protect local watersheds, and promote ecological resilience.

  • Stormwater Management

    Engineers functional drainage and runoff mitigation systems to prevent flooding and protect local aquatic habitats.

  • Green Infrastructure

    Integrates naturalized landscape elements such as bioswales and rain gardens to capture and filter urban runoff.

  • Low Impact Development Design

    Implements sustainable site design techniques that mimic natural hydrologic functions to manage rainfall close to its source.

Utilities Design

Service website

Provides civil planning and engineering for critical subterranean infrastructure systems.

  • Storm Drain

    Manages and conveys storm runoff safely away from built environments.

  • Sewer

    Collects and conveys sanitary wastewater to support public health and municipal infrastructure.

  • Water Utility Design

    Distributes clean water through reliable mains and service connections.

Americans with Disabilities Act (ADA) Compliance

Service website

Work in this area is organized into supported delivery tasks.

  • Ensures Public Spaces

    Support includes Ensures public spaces.

  • Sidewalks

    Support includes sidewalks.

  • Curb Ramps Meet Accessibility Standards

    Support includes curb ramps meet accessibility standards.

  • Regulatory Requirements

    Support includes regulatory requirements.

Grading and Earthwork

Service website

Provides precise grading, site contouring, and earthwork calculations to support roadway, trail, and public utility layouts.

Project Management

Service website

Oversees civil engineering design delivery from initial planning through final construction documentation.

Plan Checking and Third-Party QC Review

Service website

Delivers comprehensive plan reviews, constructability evaluations, and quality control assessments for municipal agencies.

Industries

Highways & Roads · Transportation · Stormwater & Flood Control · Water Supply · Wastewater · Parks & Open Space · Education

Projects

Santa Cruz Rail Trail

Santa Cruz, CA · Transportation

Project details

Active transportation trail design to support pedestrian and bicycle mobility in Santa Cruz, California.

Progression Engineering - Engineering Firms