The Mercer Island "Through Traffic" Shortcut Most Eastsiders Never Use

When I-90 westbound backs up toward Seattle during evening rush, most drivers sit and suffer. But savvy locals know that exiting at Island Crest Way on Mercer Island and cutting through the neighborhood grid to the 77th Ave SE on-ramp lets you leapfrog a full mile of standstill traffic legally and quickly — the residential streets are public through-roads, not private, so there's no trespassing concern.

The trick is timing it for after 6:15 PM when the Island's own commuters have already cleared out.

Bonus: pair this with grabbing coffee at the Island's small market near SE 27th Street while you wait out the final snarl. Regulars from Issaquah and Sammamish who make this a routine shave 15–20 minutes off their commute on heavy traffic days, while everyone else watches the same brake lights from the on-ramp queue in Bellevue.

The Eastside communities of Lake Washington hold some genuinely unexpected stories beneath their polished surfaces:

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• Mercer Island's forbidden bridge deal: When the Lake Washington Floating Bridge opened in 1940, Mercer Island residents negotiated a clause that for decades restricted the construction of a second bridge connection to the island, keeping it intentionally hard to reach by car from the east.
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• Redmond's cycling royalty: Redmond hosts one of the oldest velodrome facilities in the Pacific Northwest, and the city formally brands itself "Bicycle Capital of the Northwest" — a title backed by an annual cycling festival that predates the tech-boom era by decades.
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• Woodinville's wine surprise: Despite sitting in a cool, rainy climate far from Eastern Washington's vineyards, Woodinville hosts over 130 wineries and tasting rooms, making it one of the densest concentrations of wine tasting destinations in the entire United States — all producing wine from grapes trucked in from across the Cascades.
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• Issaquah's salmon in the city center: Issaquah Creek runs directly through downtown Issaquah, and each autumn Chinook and coho salmon complete their spawning run just feet from storefronts and parking lots, a spectacle the city has built an entire hatchery and festival around since the 1970s.
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• Sammamish's rapid-rise record: Sammamish incorporated as a city only in 1999, yet within roughly two decades it grew fast enough to become one of the most populous cities in Washington State, an incorporation-to-density arc that urban planners cite as nearly unmatched in the Pacific Northwest.

A man told his friend he moved to Sammamish to "get away from it all." His friend asked, "How's that going?"

"Great — I have no idea what 'it all' is anymore, but the HOA newsletter arrives on time every single Tuesday."