In-Depth Excavation points to Everett trench standard update

In-Depth Excavation says Everett’s July 2026 construction standard update changes how contractors must handle water main trench bedding, backfill, and site prep. The revisions matter for public works and permitted private projects because they set new material requirements and reinforce how much planning underground utility work now demands.

Why it matters: - Everett’s updated trench rules change what materials contractors can use for water main bedding, which can affect project planning, costs, and compliance. - The standards apply to public works projects and qualifying private development under the city’s permit process. - The update underscores a broader shift in excavation work: trenching now requires careful review of soil, water, utilities, and backfill before digging starts.

What happened: - In-Depth Excavation, a Snohomish-based excavation contractor, highlighted Everett’s updated Design and Construction Standards. - Everett released the updated standards in July 2026. - The changes focus on trench excavation and water main work.

The details: - Section 5-7.4 covers trench excavation, bedding, and backfill for water mains. - Under the previous standards, bedding material was required when specified by the Public Works Department. - The July 2026 standards now require bedding material to be sand meeting the city’s requirements or crushed surfacing base course meeting applicable WSDOT/APWA specifications. - The updated section adds a specific gradation for clean sand used as pipe-zone bedding and backfill for ductile iron and steel pipe. - Native material can still be used as bedding for ductile iron pipe when the Public Works Department determines the material is suitable. - Everett updates its standards as construction methods, regulations, technology, and city policies change. - The city says trench conditions must account for trench width, shoring, water control, backfill, and compaction. - Unsuitable materials such as peat, soft clay, and quicksand must be removed and replaced with approved foundation material. - Unsuitable material must be hauled away rather than stockpiled at the project site. - Water entering a trench must be managed during pipe installation, and the trench must stay controlled until the pipe is protected and the area is backfilled. - In-Depth Excavation provides trench digging, utility trenches, water lines, side sewers, storm drainage, site preparation, foundation excavation, grading, and other residential and commercial excavation services in Everett, Snohomish County, and surrounding areas. - The company says it brings more than 60 years of combined excavation and earthwork experience to projects in Snohomish, King, and Skagit counties.

Between the lines: - The standards change is a reminder that excavation work is tied to evolving municipal requirements, not just equipment and manpower. - Contractors that do not review local standards before mobilizing can face avoidable rework or compliance problems. - Dillon Aschenbrenner, owner of In-Depth Excavation, said excavation requires knowing what is in the ground, what is going into it, and what the finished trench needs to support before moving dirt.

What's next: - Contractors working in Everett will need to align trench bedding and backfill plans with the city’s updated material requirements. - In-Depth Excavation is directing customers to discuss excavation, trenching, underground utility installation, or site preparation before work begins. - The company continues to offer residential and commercial excavation and site-preparation services throughout Snohomish County and nearby areas.

The bottom line: - Everett’s updated trench standards make pre-planning more important for water main and underground utility work, especially where bedding material and site conditions determine compliance.