Level 1 Pile Inspection & Follow-Up – Tacoma, Washington

Marine infrastructure is constantly exposed to a challenging environment. Tides, vessel traffic, weather, and biological growth all contribute to gradual wear on docks and pilings. Routine inspection programs are essential for identifying issues early and ensuring that waterfront structures remain safe and operational.

The photos shown here are from a recent Level 1 pile inspection in Tacoma, conducted by Enviro-Tech Diving as a reassessment of previously documented pile damage. The purpose of the inspection was to determine whether the observed deterioration was ongoing or had stabilized since the previous evaluation.

Level 1 inspections consist of a visual and tactile examination performed by a commercial diver. During this process, divers systematically review the accessible portions of piles, checking for signs of deterioration such as:

  • Marine borer damage
  • Structural cracking or splitting
  • Abrasion from vessel contact
  • Loss of cross-section from biological or environmental degradation
  • Movement or misalignment

The diver documents findings directly to the surface team while conducting the inspection. This allows the project team to compare present conditions with previous records and determine whether structural changes are progressing or remaining stable.

In this case, the inspection provided the client with critical information for ongoing asset management and maintenance planning. Reassessment dives like this are an important part of responsible waterfront infrastructure management, allowing owners and operators to track the condition of their facilities over time and prioritize repairs when necessary.

Projects like this also highlight the value of having experienced dive teams capable of conducting inspections efficiently and safely while working in active marine environments.

Learn more about pile inspection levels here: https://www.ayresassociates.com/underwater-inspection-when-why-and-how/

At Enviro-Tech Diving, pile inspections are always on our radar. Our teams routinely assist ports, marinas, municipalities, and marine facility operators throughout the Pacific Northwest and Alaska with inspection programs designed to keep infrastructure performing as intended.

Diver preparing to enter the water for a pile inspection

Related Projects

Our dive teams are currently engaged in a number of projects, including:

Client: State of Alaska
Location: Cold Bay

When a marine facility needed to replace deteriorated steel support piles beneath an active dock, Enviro-Tech Diving mobilized commercial divers and marine construction support personnel...

Client: WA State Municipality
Location: WA State Peninsula

A municipal water utility on Washington’s Olympic Peninsula required a new vertical pipeline extension inside an existing water storage tower to improve system reliability. Working...

Client: Seafood Processing Plant
Location: Bristol Bay

In the remote and dynamic environment of Bristol Bay, a new waterfront plant development required precise planning and early-stage visibility to ensure successful construction in...

Client: Lakewood Parks
Location: Lakewood, WA

During a period of severe winter storms impacting the Puget Sound region, Enviro-Tech Diving, Inc. was dispatched on emergency storm response for an urgent infrastructure...