Louisiana I-10 bridge site reveals 1,000-year-old pottery and shell layers

Archaeologists working ahead of a major highway project in southwest Louisiana have found traces of Indigenous life along the Calcasieu River that stretch back roughly 600 to 1,000 years. At a spot called Norris Point, they recorded pottery and two thick layers of discarded shellfish shells, the leftovers of meals eaten long before European settlers arrived.

Why archaeologists are digging at the new I-10 bridge

The site sits near Westlake and Lake Charles, where the Louisiana Department of Transportation and Development (DOTD) and the Federal Highway Administration are planning a new Interstate 10 bridge over the Calcasieu River. Federal rules require teams to study places that construction could affect, including sites that hold archaeological remains. That work gives researchers a rare look at ground that would otherwise stay buried.

The findings reached the public on 14 October 2026, when Sara Hahn of Coastal Environments, Inc. and Carey Coxe of the Louisiana DOTD gave a presentation at the Imperial Calcasieu Museum. The Calcasieu Post reported on the story on 28 October 2026. The reporting cites the 2022 final environmental impact statement for the project, which lists the site as Norris Point, site number 16CU128.

What the team found at Norris Point

The most visible discovery is the shell. Archaeologists found two thick layers of discarded shellfish shells, one about 12 inches deep and another about 8 inches deep. Piles of shell like this usually build up slowly, as people eat the same kind of food in the same place over many seasons. They give researchers a record of what a community ate and how long it used a spot.

The team also recovered pottery. Based on the pottery, archaeologists suggest that Indigenous people used this stretch of the river between about A.D. 1000 and 1400. That is a span of roughly 600 to 1,000 years ago. Pottery styles change over time, so even small broken pieces can help experts place a site in a rough period.

The site has also been determined eligible for the National Register of Historic Places, according to the federal document the newspaper cites.

A second chapter: the Norris Sawmill

The same patch of land holds a much younger story. Archaeologists found the buried foundations and structural remains of the Norris Sawmill, which operated from about 1866 to 1903. The sawmill remains sit in the same location as the older Indigenous deposits. That means one small riverbank now preserves evidence of two very different periods, separated by many centuries.

Why this stretch of the river mattered

Rivers and shorelines gave people food, water and travel routes, and the Calcasieu River was no exception. Shell layers suggest that people returned to Norris Point repeatedly and ate shellfish there. The sawmill, built in the 1860s, shows that later settlers also valued the location, likely for its access to the water.

Finds like these also remind readers that the history of a modern interstate corridor goes back far beyond the road itself. Studies tied to construction often add detail to the local record, and they give museums and communities new material to share.

What we still do not know

Several questions remain open. Archaeologists have not established which Indigenous tribe lived at Norris Point, so the people behind the pottery and shells are still unnamed. The pottery dates come as a broad range, A.D. 1000 to 1400, rather than a single year. The coverage we could review does not give details about the species of shellfish or the exact size of the site, and we did not find a published technical report to check those points.

It is also unclear what will happen next at the site. Construction near a protected, eligible location usually involves further study and planning, but we could not confirm the specific excavation plans from the sources we reviewed.

For now, Norris Point offers a small but clear reminder that people lived, cooked and worked along the Calcasieu long before the bridge plans began, and that careful digging may add more to the story.

Sources

• Louisiana DOTD and Federal Highway Administration, I-10 Calcasieu River Bridge final environmental impact statement (2022), and Coastal Environments, Inc. presentation at the Imperial Calcasieu Museum, 14 October 2026 (documents not directly fetched; cited through The Calcasieu Post)
• The Calcasieu Post, Archaeologists Uncover Evidence of Life 1,000 Years Ago at New Lake Charles I-10 Bridge Site