Engineering in Spokane

Services in Spokane

MEP engineering

• Heating-dominated MEP design for a cold continental climate: high-efficiency boilers, cold-climate heat pumps, and robust building envelopes
• Snow-load-driven roof drainage and rooftop equipment detailing — drift loads against penthouses and parapets per ASCE 7
• Freeze protection for domestic water, fire suppression, and exterior piping in unconditioned spaces
• Hospital and medical-office growth around the South Hill medical district requiring medical-gas, isolation-room, and backup-power systems
• Industrial and cold-storage facilities along the I-90 corridor with ammonia/CO2 refrigeration coordination
• Energy-code compliance under the Washington State Energy Code, with heat-recovery on large ventilation systems

Structural engineering

• Ground snow loads of 30+ psf driving roof framing, drift, and sliding-snow design across the metro
• Frost-depth foundations and frost-protected shallow foundation detailing for light commercial buildings
• Lower seismic demands than the west side, allowing more economical lateral systems — a real cost advantage for developers
• Basalt bedrock near the surface in many areas: rock excavation, blasting coordination, and rock-socketed foundations
• Tilt-up and precast concrete warehouse construction along the I-90 and Airway Heights logistics corridor
• Historic downtown masonry buildings in Riverside and Browne's Addition needing structural assessment and adaptive-reuse engineering

Civil engineering

• Stormwater infiltration in the Spokane Valley–Rathdrum Prairie Aquifer — a federally designated Sole Source Aquifer — with strict treatment-before-infiltration rules
• City of Spokane stormwater manual compliance, with swales and drywells common where soils allow
• Spokane River shoreline and floodplain permitting for riverside development
• Freeze-thaw durability in pavements and site concrete: air-entrained mixes and proper base drainage
• WSDOT access management for commercial sites along Division Street, Sprague Avenue, and the I-90 interchanges
• Grading on basalt and Missoula Floods terrain with shallow rock and variable soils

Electrical engineering

• Send us the floor plans and load list; Spokane, WA projects get a firm electrical quote back quickly and permit-ready drawings sealed by a Washington-licensed PE.
• Power distribution across a Spokane downtown adaptive reuse means transformer sizing, voltage drop on long feeders, and selective coordination of overcurrent devices — the details that keep a Washington facility running instead of tripping offline.
• Lighting layouts and controls for Spokane downtown adaptive reuse engineered to ASHRAE 90.1: photometric plans, daylighting zones, and occupancy/vacancy controls that pass Washington's energy review without post-permit value engineering.
• Spokane downtown adaptive reuse projects frequently trigger service upgrades — we size panels, switchgear, and feeders for the real connected load plus code-required spare capacity, so the Spokane building department sees fault-current and load calculations that match the one-line diagram.
• Puget Sound Energy or Seattle City Light service rules shape every Spokane project: we confirm service voltage, metering, and utility-side requirements before drawings go to the Spokane building department, not after the first correction cycle.

Plumbing engineering

• Domestic water and sanitary design for Spokane multifamily infill and student housing: pipe sizing by fixture-unit method, pressure-booster evaluation where city pressure falls short, and backflow assemblies located per the Spokane building department requirements.
• Specialty plumbing for Spokane multifamily infill and student housing: medical gas outlets and alarm panels for healthcare, grease interceptors for restaurants, and acid-waste systems for labs — each with its own riser logic.
• Gas load calculations and piping layouts for Spokane fairchild afb-adjacent industrial — rooftop units, water heaters, and kitchen equipment all on one coordinated schedule the gas utility and the Spokane building department both accept.
• Below-grade plumbing gets special attention in Spokane — sump and ejector sizing, flood-level rim elevations, and backwater protection where the the Spokane building department reviewer will ask for it.
• In Spokane's a marine climate with wet winters, exterior hose bibbs, irrigation backflow assemblies, and rooftop piping get freeze-rated details — the callbacks we prevent never make it onto a punch list.

HVAC engineering

• Our Spokane duct designs coordinate above the ceiling before construction starts — warehouse and logistics along i-90 projects can't afford the field reroutes that come from uncoordinated shop drawings.
• Heating and cooling load calculations for Spokane multifamily infill and student housing using a marine climate with wet winters design conditions — envelope, occupancy, and ventilation loads modeled so equipment is sized right, not oversized by habit.
• Energy modeling and Title-24-style documentation for Spokane multifamily infill and student housing: our compliance forms match the drawings, so the Spokane building department energy review doesn't generate a second correction cycle.
• Ventilation per ASHRAE 62.1 for Spokane multifamily infill and student housing: outdoor-air rates by occupancy, dedicated outdoor-air systems where they pay off, and exhaust make-up that keeps the building balanced.
• the Spokane building department mechanical review in Spokane, WA zeroes in on load calcs, ventilation rates, and equipment schedules — our Spokane submittals carry all three with matching numbers across every sheet.