The bridge was built in 1840 by John Weaver for the county for a total cost of $2800, a rediculous figure now-a-days.

The bridge is 173' long with spans that measure 34', 38' and 34'. The Claggett family at their mill, farm, and estate 'Valentia', were forerunners in the use of agriculutral machinery in their operations.

The entire operation of the Claggetts was so expandsive, at times employing over 100 workers on their farm and mill, that they were actually instrumental in setting grain prices for the Hagerstown, Sharpsberg, and Funkstown area.GPS: 39' 35.69N, 77' 42.61WElevation: 449'/137 meters Funkstown Quadrangle

The Claggett Mansion/miller's house just west of the stone-arched millrace bridge.

The mill, said to be a large, three story, stone structure, operated in the late 18th and most of the 19th centuries; and, was still in good condition in 1910.

The longer bridge is unusual in that it has an extension or outshot on the west abutment used as a loading dock for wagons, as the mill structure abutted right up to the bridge wall. The next mill site downstream at the Rose Mill Stone-arched Bridge has the same feature.

The old stone mill stood immediately next to the eastern end of the race bridge and the western egde of the Antietam Creek Bridge at the outshot portion of the wing wall. No traces are left today of the mill.GPS: 39’ 35.69N, 77’ 42.63WElevation: 456’/139 meters Funkstown Quadrangle