In the 1920s, State Highway 151 followed today's Route 197, from Route 32 to the Massachusetts state line.

The modern Route 151 was commissioned in 1932; few or no changes since then.

However, in the early 1960s, Route 151 was to be decommissioned. Because of its low traffic counts, the Highway Reclassification Act included a recommendation to delete Route 151, and turn it over to town maintenance.

At the time, a nuclear power plant was proposed near Haddam Neck. A Haddam resident contacted the state highway commissioner, asking that the state delay turning over the route, because of construction and employee traffic that would use the road.

The nuclear plant was never built; but Route 151 was retained.

• "Atom Plant May Alter Rt. 151 Plan." Hartford Courant, Sept. 18, 1962.

Route 151 Ends (Photos; Doug Kerr at state-ends.com)