Comite River

About

Comite River, Louisiana — 1699 Iberville, 1840s-1880s Logging, 2020 Comite Diversion Canal 50-mi East Baton Rouge. Paddlers reading the gauge at USGS station 07378000 will find a river that runs, on average, about 480 cubic feet per second, with an optimal window between 100 and 800 CFS. The historical low sits near 432 CFS, so for much of the year the Comite offers steady, unhurried water. Rated Class I, it is a river of ease rather than whitewater, a 60-mile corridor that separates cleanly into two characters: an upper reach of roughly 25 miles from Clinton to Zachary running through rural piney woods, and a lower 35-mile stretch from Zachary to the Amite confluence threading a suburban corridor.

The river's human record runs deep. Before European contact, the Comite watershed lay within the broader territory of the Houma people in the Baton Rouge area. The name 'Comite' may derive from French colonial usage, a small linguistic fingerprint of the blended cultural landscape of colonial Louisiana. From the 1830s through the 1920s, the watershed was logged hard to feed the regional timber industry of the mid-1800s through early 1900s and the railroad expansion that ran alongside it. Local sawmills, logging drives, and downstream lumber operations were the major operators until the old-growth stands were exhausted around 1910, state forestry conservation began in 1915, and state forests were established in the 1930s.

The river's waters drew scientific attention early. The USGS surveys of the 1870s through 1890s, gauging stations established from the 1880s into the 1910s, and state geological streamflow assessments of the 1910s through 1930s were the first comprehensive hydrological studies of the Comite. Later came the state water pollution control studies of the 1950s through 1970s and Clean Water Act assessments from 1972 onward, all reckoning with more than a century of logging, agricultural, and industrial impacts. Modern restoration and TMDL programs are the major current outcomes of that long accounting.

But the defining chapter is engineering. After the 2016 flood of record, a long-discussed ambition finally moved. In 2019 the Army Corps of Engineers began construction of the Comite River Diversion Canal, a major flood control project designed to reduce flooding in the Baton Rouge metro area. In 2020 crews completed the canal, a channel built to draw off floodwaters and deliver urban flood damage reduction to East Baton Rouge Parish in the southern portion of the Comite River Basin. The work of keeping the river healthy continued downstream of that milestone: in October 2023 the Comite River Cleaning Project wrapped up, hauling 7,843 tons of debris from the waterway.

Today the Comite remains a tributary of the Amite River, its watershed a key part of the larger Lake Maurepas system, and its economy tied to the communities of Comite, Zachary, and Baker. As presented to the Comite River Diversion Canal/Amite River Basin Task Force on January 14, 2026, in Baton Rouge, the diversion project remains the centerpiece of the river's management. Shaped by flood, engineered for resilience, and steadily cleared for the communities along its course, the Comite endures as a working river.