Noise, trucks and access around the 606 block.

Bellevue's current construction-noise rules allow construction sound from 7 a.m. to 8 p.m. Monday through Friday and from 8 a.m. to 6 p.m. on Saturdays that are not legal holidays. Construction-site noise is not allowed on Sundays or legal holidays under the standard exemption.

Those are noise limits, not a promise that work will fill every allowed hour. The city can issue an expanded-hours noise permit for defined circumstances such as transportation mitigation, site stabilization, essential public work or emergencies. Police receive the city's list of active expanded-hours permits before responding to a complaint.

Bellevue directs construction-noise complaints to the Police non-emergency line at (425) 577-5656. The city says an officer may order the noise-producing activity stopped when it is outside an approved window and clearly audible across a property boundary or at least 75 feet from its source.

Parking, staging, hauling or construction activity in the public right of way requires City of Bellevue approval. A Commercial Right-of-Way Use permit includes a Traffic Control Plan showing lane and sidewalk closures, flagging, temporary signs and how people move around the work.

Bellevue's standard conditions preserve access to neighboring homes and businesses and generally prevent both sidewalks on the same block from closing at once unless a legal crossing is provided. Conditions can vary by permit, so the approved traffic-control plan — not a general project rendering — governs a particular closure.

The city's Traffic Advisories page is the public place to check current lane closures and detours. The Onni 606 permit ledger on this site tracks the project filings, but it is not a real-time traffic-control notice.

The project's 2019 environmental checklist estimates approximately 356,853 cubic yards of excavation. The filing does not convert that volume into truck trips. At roughly 10–18 cubic yards per loaded truck, this site's independent planning range is about 20,000–36,000 loaded truckloads over the life of the dig; it is an order-of-magnitude estimate, not an Onni or City forecast.

The site fronts 106th Avenue NE, but 106th is not one of Bellevue's designated truck routes. City code confines large trucks and hazardous cargo to the highway system or authorized routes; on this side of Downtown, 108th and 112th Avenues NE are the nearby designated north–south routes. A project-specific Traffic Control Plan will determine the approved connection from the block to that network.

Truck activity will not be uniform across the roughly five-year build. The most concentrated hauling belongs to the mass-excavation phase; concrete placement, tower structure, enclosure and interior work create different street patterns later.

The environmental record commits the project to Puget Sound Clean Air Agency dust rules, sprinklering during demolition, reduced equipment idling and a Temporary Erosion and Sedimentation Control plan. Contaminated soil is subject to the separate state-supervised cleanup process described on this site's environmental page.

Bellevue marked a July 14, 2026 erosion-control inspection under the issued early-grading permit Partial with Corrections and directed the installation of catch-basin inserts along 106th Avenue NE. A second inspection on July 20 was logged as Ongoing with no note. Those entries show active city oversight; they are not final approval of the full excavation.

Limited early excavation is under way under issued clear-and-grade permit 21-133872-GD. The work visible in July 2026 is a broad shallow cut with multiple excavators, grading and removal of the remaining slab.

The dedicated mass-excavation and shoring permit 21-134212-BV and the below-grade structure permit 24-104362-BB remain pending. Full perimeter shoring and the deep five-level garage excavation begin only after the applicable approvals and preconstruction requirements clear. The live camera and permit ledger are the best ways to distinguish a visible change from a legal phase change.