Construction of the new Wyatt Way-Madison Avenue intersection is slated to begin Monday, June 8, a project which will add a new roundabout, sidewalks and bike lanes to the Winslow junction.

People walking and driving should expect detours around the project area, according to City of Bainbridge Island officials.

According to the city: “The Wyatt Way Reconstruction and Safety Improvement project will improve safety for all modes by constructing a complete street with sidewalk and bike lanes; preserving vehicle level of service and improving non-motorized level of service and connections; and rehabilitating poor pavement conditions by constructing road surfacing with appropriate drainage.”

The central component of the project is a roundabout at the intersection of Wyatt Way and Madison Avenue intended to “improve the level of service,” according to the city.

Other improvements include paved shoulders, sidewalks, bike lanes and lighting.

“Bicyclists approaching the intersection will have the choice of entering the roundabout or using ramps to access the multi-use sidewalks and crosswalks,” city officials said.

The large existing trees on Wyatt Way, just west of the Madison Avenue intersection, will reportedly be preserved.

Construction is expected to be complete by fall.

The project is expected to cost about $4.3 million, with $2.5 million coming from state grants, according to the city.