Bell Design Company

Water system design and analysis covering pump station and PRV vault design, water treatment, master planning, well systems, hydraulic and hydrologic modeling, reservoir sizing, and DOH regulatory compliance for Group A, B, and NTNC-A/TNC-A systems.

• Water System, Pump Station & PRV Vault Design
• Water Treatment Design
• Water Master Plans
• Well System Design & Testing
• Hydraulic/Hydrologic Modeling
• Reservoir Sizing & Design
• DOH Regulatory Compliance (Group A, B, NTNC-A/TNC-A)

Subsurface investigations, foundation design, slope stability analysis, soil and ground modifications, geohazard assessment, and welding and geotechnical special inspections grounded in early field involvement and engineering judgment.

• Geotechnical Investigations
• Site Characterization & Subsurface Evaluation
• Shallow and Deep Foundations
• Braced Cuts & Sheet Pile Design
• Slope Analysis & Stabilization
• Soil & Ground Modifications
• Geohazard Assessment
• Industrial/Commercial Welding Inspection
• Pipeline Inspections

Comprehensive structural analysis, building design, and seismic retrofit solutions for commercial, residential, and municipal clients, including bridge evaluation, retaining wall design, failure investigations, and fire, life, and safety reviews.

• Structural Analysis & Design
• Gravity/Lateral/Code Review
• Seismic Retrofits & Grants
• Private Bridge Design & Evaluation
• Foundation & Retaining Wall Design
• Failure Investigations
• Fire, Life & Safety Reviews

Precise boundary, topographical, and ALTA surveys combined with high-resolution UAV aerial mapping. BDC holds FAA Remote Airman certification and is one of the few fully licensed drone survey operations in the Columbia Gorge region, delivering verifiable data for development, construction, and legal compliance.

• Boundary/ALTA/ACSM Surveys
• Topographical Mapping
• High-Resolution UAV Aerial Mapping
• Platting, Land Division & Parcel Adjustment
• Construction Layout & As-Builts
• Legal Description Prep & Review
• GPS/GIS Mapping
• Corner Location

Efficient, code-compliant access, circulation, and paving solutions spanning public and private road design, subdivision platting, commercial site plans, driveway approaches, parking design, bridge design and evaluation, and retaining walls.

• Public/Private Road Design
• Plat and Subdivision Roads
• Site Design and Site Plans
• Driveway Approach Plans
• Parking Plans & Pavement Design
• Bridge Design & Evaluations
• Retaining Walls

Stream surveys, erosion and drainage control, NPDES permitting, fish passage and culvert design, surge and scour analysis, process treatment pond design, and sound attenuation analysis to keep projects compliant and minimize environmental footprint.

• NPDES Permitting
• Stream Surveys
• Fish Passage/Culvert Design
• Surge/Scour Analysis
• Process Treatment Pond Design
• Sound Attenuation Analysis/Design

Full entitlement management from initial documentation through final approval, covering SEPA documentation, FEMA LOMA filings, Columbia River Gorge National Scenic Area land use applications, mining reclamation plans, zoning changes, annexations, and conditional use permitting.

• SEPA Documentation
• FEMA Letter of Map Amendments (LOMA)
• NSA Land Use Applications
• Mining Reclamation Plans
• Zoning Changes & Annexations
• Conditional Use Permitting/Variance

End-to-end industrial piping design and detailing grounded in real-world constructability, covering ASME/ASTM-compliant layouts, utility pipe design, pipeline inspections, sawmill engineering, and geohazard assessment for oil and gas, pulp and paper, and power generation clients.

• Industrial Piping Design
• ASME/ASTM Compliance
• Utility Pipe Layout
• Pipeline Inspections
• Sawmill Engineering
• Geohazard Assessment

Comprehensive construction oversight including inspection, cost estimating, contract management, CPM scheduling, O&M manuals, progress payment verification, and safety, quality, and work plan adherence.

• Construction Inspection
• Cost Estimating
• Contract Management
• CPM Scheduling
• O&M Manuals
• Progress Payment Verification

Impact analyses and trip generation studies evaluate the effect of new construction on local roadways, delivering Traffic Assessment Letters and turning site triangle documentation needed for regulatory sign-off.

• Impact Analysis
• Trip Generation Analysis
• Traffic Assessment Letters
• Turning Site Triangle