"Supt Estabrook has just completed the filling of the Haynes trestle on the Monson railroad, which is 645 feet long and averages 15 feet in depth, with debris and waste from the slate quarries. He has been fourteen months doing it as he did not employ any extra men but did it with his regular crew in spare hours. It is an excellent job and enhances the value of the road very materially."
The Monson Weekly Slate, 1/15/1890
This is likely the fill between the Monson station and the Willimantic road (Stevens Crossing) that Stewart mentioned under "Monson RR blog" a couple days ago. I had never heard of "the Haynes trestle" or of any Haynes in Monson. Gary Kohler has a nice photo of the trestle, which I hope will be included in his upcoming Monson book.