Early planning decisions can significantly impact cost, feasibility, and timeline.

We help identify site constraints and opportunities before design begins, giving you a clear path forward.

Our feasibility services include:

• Site constraint evaluation (critical areas, drainage limitations, utility needs)

• Preliminary stormwater approach and BMP feasibility

• Guidance on likely permitting requirements

• Input during property acquisition or early planning

• Coordination with project teams to align expectations

This upfront insight helps you avoid surprises, reduce redesign, and make informed decisions early.

Stormwater design in Washington requires more than calculations—it requires a strong understanding of the Washington Department of Ecology Stormwater Manuals (SWMMWW for Western Washington & SWMMEW for Eastern Washington) and how local jurisdictions apply them.

We provide complete stormwater and grading design to support permitting and construction, including:

• Engineered Stormwater Plans, Reports, and Supporting Calculations

• Stormwater BMP Selection, Sizing, and Design

• Infeasibility Analysis and Documentation

• Site Grading Plans

• Erosion and Sediment Control (ESC) plans

•Downstream Analysis

Our focus is on delivering clear, permit-ready designs that meet all State and local jurisdiction requirements, helping reduce review comments and keep your project moving.

Permitting requirements vary widely across Washington State, and navigating them efficiently is critical to keeping your project on schedule.

We support clients throughout the review process by:

• Preparing complete and coordinated submittal packages

• Responding to plan review comments

• Revising plans and reports as needed

• Coordinating with local agencies and reviewers

•Interpreting jurisdiction-specific requirements and expectations

With experience across multiple jurisdictions and years of work as permit reviewers ourselves, we understand what reviewers are looking for and work proactively to minimize back-and-forth and reduce review cycles.

We design utility systems that are practical, code-compliant, and aligned with agency standards—whether serving a single site or extending infrastructure to support development.

Our utility services include:

• Water, sewer, and storm utility design

• Mainline extensions and system tie-ins

• Coordination with utility providers and local agencies

• Plan and profile drawings for construction

• Support for utility permitting and approvals

Whether extending infrastructure or connecting to existing systems, we deliver well-coordinated utility designs that integrate seamlessly with your site and support long-term functionality.