"In St.Lawrence County there are bowstring truss bridges from Coakley's Island over the Grasse River in the Town of Canton which was built in 1875 and the Spile Ridge Road over the outlet to Black Lake in the Towns of DePeyster and Oswegatchie which was constructed in 1874, Mr. Boettinger said.
These bridges are two of three known surviving New York examples of the King tubular arch truss. The bridge on the Spile Ridge Road is the only surviving New York multiple-span example of that type truss. Both structures were built by the King firm of Cleveland, Ohio. Mr. Boettinger said that the third bridge in St. Lawrence County was the high parabolic-truss in the Town of Norfolk, the span measuring 290 feet. In Lewis County, two of five known surviving examples built after the basic 1841 Whipple patent are located on the WHITTLESEY ROAD over the Black River in the Town of Greig and on the Cheese Factory Road over the Sugar River in the Town of Leyden. Both are segmented and bowstring truss bridges. The third bridge is a Whipple-Murphy Truss over the Sugar River in the Town of West Turin. This bridge, thought to have been been bought from a railroad, uses patented "Phoenix" columns for main compression members. No dates of construction for these three structures have been established."
Following are other bits of information I could find about this bridge:
The following article was published in the Carthage New York Republican on July 2, 1879:
"The Whittlesey bridge on Black river is to be rebuilt this season to the extent of two spans, including the draw bridge, so says the superintendent of public works."
The following article was published in numerous New York newspapers in 1893 describing State funds being appropriated for the "repair" of the Whittlesey Road Bridge.
"Section 1. The sum of ten thousand dollars or so much thereof as may be necessary, is hereby appropriated out of any money in the treasury not otherwise appropriated, for the purpose of rebuilding the two span that burned in eighteen hundred and ninety-two, of the State bridge crossing Black river at Castorland, and for rebuilding the drawbridge crossing the same river at Greig, known as the WHITTLESEY BRIDGE and westerly approach thereto."
The following article was published in the Utica Herald-Dispatch on Saturday March 6, 1915:
"Boonville. March 6 —Anthony Sebastian, aged 25 years,of this village, fell from a new iron bridge in the construction of which he was engaged, known as the Whittlesey bridge, between Lyon Falls and Greig today and was drowned. He was seen by fellow workmen to fall and as speedily as possible they went to his assistance, throwing him a rope. The water is deep and the current swift, however, and it was impossible to save him. A search was begun for his body. It has not been recovered."