It heads northeast as North Street, crossing under I-84 at exit 7 with access to the eastbound direction only.

Route 37 crosses into the town of New Fairfield after another 2.1 miles (3.4 km), as it skirts the banks of the Margerie Lake Reservoir.

Route 37 then enters the town of Sherman as Greenwoods Hill Road and passes through the Pootatuck State Forest.

West of the river it used modern Route 37 to reach Sherman center.

West of Sherman center, it used Briggs Hill Road to the state line.