1842 Erie Canal Aqueduct over Mohawk River at Crescent, NY

North (west) abutment: (Satellite, just some stone remains. [ErieCanal_crescent])

South (east) abutment: (Satellite, or are the remnants under the trees to the west?)

Erie Canal overview

This Lower Mohawk River Aqueduct and the Upper River Aqueduct at Rexford, NY, were built to avoid steep, rocky terrain on the south side of the river." [HAER_data]

"The Crescent Aqueduct, or Lower Mohawk River Aqueduct, re-crossed the Mohawk River 12 miles downstream from the Rexford Aqueduct, from the north side (west end) at Crescent, Saratoga County to the south side (east end) just northwest of Cohoes, Albany County. It was built in 1842 of random ashlar masonry, probably limestone. Its length was 1137 feet [347m], with 25 masonry arches to support the towpath." [ErieCanal]

Joel Torres posted seven photos with the comment:

At the site of the Longest Erie Canal Aqueduct once was .

Crescent, N.Y.

Pete Bardunias: Glad to see they cleared the brush and stuff from around it! Its important that these historic relics be accessible to the public. Good job Town of Halfmoon!!!!

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The original 1825 wood aqueduct was the longest aqueduct in the world when built.

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1893/93 Cohoes Quad @ 62,500

HAER NY,46-REXFO,1--6
6. Photocopy of map of the Erie Canal Lower Mohawk River Aqueduct at Crescent, 1834. From Holmes Hutchinson Manuscript, vol. 10, pl. 37 in the New York State Library - Erie Canal (Enlarged), Upper Mohawk River Aqueduct, Mohawk River, State Route 146, Rexford, Saratoga County, NY

Postcard via ErieCanal_aqueducts, there are several more images of the aqueduct on this webpage

ErieCanal_aqueducts
"On the Crescent Aqueduct" (looking south) -- Photograph ; approximately 1909? [The Canal Society of New York State]

I disagree that the above photo is looking South. Unlike today, the road bridge was on the east side of the aqueduct.

1893/93 Cohoes Quad @ 62,500

HAER NY,46-REXFO,1--6
6. Photocopy of map of the Erie Canal Lower Mohawk River Aqueduct at Crescent, 1834. From Holmes Hutchinson Manuscript, vol. 10, pl. 37 in the New York State Library - Erie Canal (Enlarged), Upper Mohawk River Aqueduct, Mohawk River, State Route 146, Rexford, Saratoga County, NY

I agree with the direction in this caption. We see the canal in the foreground after it makes the sharp 90-degree turn at the north side of the aqueduct. This postcard is more evidence that the photo above is looking North instead of South because it shows that the towpath arches were on the west side. 

"Crescent, N.Y." (looking southeast) -- Real Photo Postcard ; not postmarked ; approximately 1908? [The Canal Society of New York State]

Adam Dubec posted three images with the comment: "Lock No. 18.5 Contract No 14 showing the aqueduct at Crescent from Cohoes from the NYS Archives March 1910."

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Adam Dubec posted

Lock No. 18.5 Canal boats on the Crescent Aqueduct. The towpath on the left, the pedestrian bridge on the right. Houses on Church Hill Road in Halfmoon shown in the upper right.

This pic gives a good example of why the aqueduct was built the way it is..  It provided good stability for the canal boats especially when things got turbulent and could withstand unpredictable weather patterns in Upstate NY.

Adam Dubec posted
Lock No. 18.5 Crescent Bridge and aqueduct under construction looking at Cohoes 1915