CRC Technical Memorandum #1901D-1
Cultural Resources Assessment for the City of Dupont Public Works Building Project, DuPont, Pierce County, WA
Page 6
The construction of the second Fort began around 1841 when workers started to disassemble many of the
1833 Fort structures and reconstruct them at the new location closer to the creek. The Fort was not formally
completed until the building of the palisades and bastions in 1848. During this time, dwellings, stores,
kitchens, barns, sheds, and other agricultural structures were constructed north and south of the creek.
Additional agricultural fields were established south and east of the Fort (Stilson 1991b).
Increasing American settlement threatened and eventually ended the HBC’s holdings around the Consent
Decree Area. After the boundary dispute between the United States and Britain was settled in an 1846 treaty,
the HBC was allowed to remain at the site for a few years, although American settlers soon began trespassing
on HBC lands. Edward Huggins claimed part of the HBC lands for himself, including the former DuPont
Works Site, and continued agricultural activities there.
In 1906, the E. I. DuPont de Nemours & Company (DuPont), an explosives manufacturer based in Delaware,
acquired the land. The DuPont Company constructed a large-scale, self contained plant for the manufacture
of explosives such as nitroglycerine, dynamite, water gel, and black powder, which it produced for resource
extraction and construction along the Pacific Rim. Many of the buildings and structures served multiple
purposes, including the delivery of raw materials to the plant, the production of electrical power, the security
of the Plant, the housing of workers, waste disposal, and the development, manufacture, transportation,
storage, and shipping of Plant products.
During the operation of the DuPont plant, buildings frequently were constructed and demolished, resulting
in extensive disturbance of the area, including for example, the construction of the railway and roads, and the
burning and demolition of a number of buildings. Underbrush was cleared and burned every year, and
explosions were not uncommon—resulting in the destruction of production buildings and the scattering of
debris for up to half a mile (Munyan 1972). In 1945, DuPont demolished and burned structures associated
with a black powder mill located on the north side of Sequalitchew Creek just over a mile inland (Stratton
and Lindeman 1977). The Burning Ground Dump site (45PI64), located north of Sequalitchew Creek near
the Methodist Episcopal Mission Site (45PI66), was systematically dynamited before the property was turned
over to Weyerhaeuser. Another example of DuPont-era damage is the use of the kettle to the east of the 1833
Fort as a holding area for soda and nitrate residue as well as runoff from plant operations (Welch n.d.). The
DuPont Powder Works closed in 1976 and Weyerhaeuser purchased the property. Before the property was
turned over to Weyerhaeuser, many of the production buildings were burned to prevent detonation of
undetected explosives.
2.6 Historical Records Search
Review of historical maps and aerial imagery provided an understanding of the historic and
modern land use, and ownership of the project. The General Land Office (GLO) conducted early
cadastral surveys to define or re-establish the boundaries and subdivisions of Federal Lands of
the United States so that land patents could be issued transferring the title of the land from the
Federal government to individuals. These maps and land serial patent records provide
information of land ownership in the 1800s. The GLO first surveyed the project location in the
1850s. The GLO map from 1854 depicts a large area, including the project as “Claimed by the
Puget Sound Agricultural Company under the Treaty of 1846.” On this map, Fort Nisqually is
illustrated. This map depicts Fort Nisqually approximately .70 mile northeast of the project
location. This location may not be fully accurate as the shoreline of in Township 19 N, Range 01
E is mapped different than that of present day. The GLO produced a map in 1859 but it did not
depict the project location.
An early 1871 map does not any cultural annotations within the project (USSG 1871a). The
project is located just outside of a mapped prairie and Edmond Marsh is present to the east (~.40
mile). Seguallitchew Creek is mapped to the north (~.06 mile). A network of roads is also
mapped including a road passing immediately north of the project south of the creek and a road
passing to the southeast of the project (~.09 mile). Several homesteads are annotated on this map
with the nearest ~.25 mile east of the project belonging to E. Huggins. The GLO remapped