Expect roundabout lane closures

January 30, 2010

By Staff

NEW — 6 a.m. Jan. 30, 2010

Officials closed the southbound bypass lane on the new roundabout at East Lake Sammamish Parkway and Southeast 43rd Way for about two weeks, while crews revise signage and pavement markings.

The roundabout will be completed after final paving occurs; the task depends on weather conditions. Lanes will close for a few days — or during a single-day full intersection closure — during final paving.

The city and contractor will work to limit impacts to drivers. Officials will notify residents at least a week before final paving starts. Check the city Web site or 1700-AM radio station for updates.

Engineers often study traffic patterns created by new projects and then make revisions based on the data.

Workers completed initial paving for the project Nov. 17 and the roundabout opened the next day. Crews planned to construct the roundabout in mid- to late-summer, but unforeseen utility work and weather conditions extended the construction schedule by almost two months.

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Comments

One Response to “Expect roundabout lane closures”

  1. Ian on February 11th, 2010 9:53 pm

    Maybe the city can explain what the purpose of this bypass lane is? It appears to achieve nothing – if you go to the roundabout you give way to traffic coming down the hill. If you go in the bypass lane you give way to traffic coming down the hill AND anyone who went straight on through the roundabout AND you have to look over your shoulder to see them coming. So why would anyone go in bypass lane? The only scenario where it makes sense to use the bypass lane is if you are on East Lake Sammamish parkway and you want to undertake a slower car in front of you by accelerating quickly around the bypass lane and darting back in front of them! Having a second ‘merge point’ so close to the roundabout is a recipe for accidents.

    We’ve had roundabouts in Europe for decades and I’ve never seen a setup like this.

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