Fulmer continues through the village as it passes under West Main Street and then State Route 5S before converging with the Mohawk River / Erie Canal.

Both bridge and mill were burned in de Belletre's great French-Indian raid and massacre of German Flats on November 12, 1757.

The Creek has an average slope of 2.1 percent over its entire stream length of 12.7 miles, including a very steep section in the middle part.

The United States Geological Survey (USGS) maintains stream gauges along Fulmer Creek.

Also outside the period of record, a severe flood occurred in August and September 2011, which reached a stage of roughly 14.6 feet (4.5 m).

The average summer discharge is about 20 cubic feet (0.57 m3) per second according to the DEC.[5] NYSDEC performed a study of Fulmer Creek in 2005 and 2006.

DEC rates the water quality of the stream as Class C, suitable for fishing and non-contact human recreation.

This bridge was later heightened, the span extended, and removal of a center pier which reduced risks of ice jams that blocks flow.

In cooperation with Corps, the Herkimer-Oneida Counties Comprehensive Planning Program (HOCCPP), and DEC began to study non-structural alternatives to prevent flooding.

[6] Then in 2005, a study was performed and found that most sediment was caused by bank erosion at about 20 major locations along the creek.

If this section hadn't been rebuilt, the erosion would have effected the run-away truck ramp on State Route 28.

Houses along Firman Street and Mohawk Central Valley School have received flood damage in the past.