The Lummi River is the current name for a river channel that was, prior to the beginning of the 20th century, the main outflow channel for the

Nooksack River The Nooksack River is a river in western Whatcom County of the northwestern U.S. state of Washington, draining extensive valley systems within the North Cascades around Mount Shuksan, Mount Baker and the Twin Sisters, and a portion of Fraser Lo ...

. It then emptied into Lummi Bay rather than

Bellingham Bay Bellingham Bay is a bay of the Salish Sea located in Washington State in the United States. It is separated from the Strait of Georgia on the west by the Lummi Peninsula, Portage Island, and Lummi Island. It is bordered on the east by Bellingha ...

, as the current channel of the Nooksack River does. At the time, the channel that now serves as the main channel of the Nooksack River was restricted by a massive, mile-long, log jam. This was the result of the timber industry floating logs downriver to ports for processing and shipping. In the late 19th century, with an interest in creating a navigable waterway that would empty into Bellingham Bay and be usable beyond Ferndale, the city of Bellingham commissioned removal of the log jam. Once the log jam was removed, the river's flow shifted into the southern channel. The headwaters of the Lummi River were restricted by a dam, which was later damaged. It was replaced by a dam and spillway system, which was also later damaged. Today the Lummi River is fed by water from the Nooksack River only during times of high water, by a culvert that passes through the

levee A levee (), dike (American English), dyke (English in the Commonwealth of Nations, Commonwealth English), embankment, floodbank, or stop bank is a structure that is usually soil, earthen and that often runs parallel (geometry), parallel to ...

. The Lummi River today is characterized by a narrow channel. As its main purpose is as a high water overflow, it has been artificially channelized and diked to prevent flooding of surrounding agricultural fields. It has a low flow as a result of its short course across glacially ploughed flatlands. The considerable reduction in the flow of the river has allowed erosive processes to strongly affect the Lummi River Delta. It was formerly of considerable size, and might have been comparable to the modern Nooksack River Delta in Bellingham Bay. The channelization and diking of the river resulted in the production of significant new areas of rich farmland, but it has cost the elimination of an equal or greater acreage of coastal

wetlands A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

and damage to important

salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...

habitats. Because of the importance of salmon to indigenous tribes, commercial and sports fishermen, state and local governments are evaluating proposals to investigate restoration of these habitats.

References

Rivers of Washington (state) Rivers of Whatcom County, Washington {{Washington-river-stub