Project Examples
Archaeological Reconnaissance: The Centralia Flood Damage Reduction Project
Cama Beach State Park Archaeological Testing Project
Data Recovery Excavations: the Lombard Street Railroad Overcrossing Project
Emergency Data Recovery: Chester Morse Lake Channel Excavation and Submerged Dam Modification Project
During 2002 and 2003, Cascadia Archaeology carried out archaeological monitoring for the construction of the City of Centralia's new wastewater treatment system under contract to CH2M HILL. Project elements included on-site monitoring of mechanical excavations and ground disturbances associated with construction of a new wastewater treatment plant, a long conveyance pipeline, and an Influent Pump Station. The project included documentation and evaluation of archaeological discoveries made during the course of construction and, following completion of the monitoring effort, preparation of a technical report describing monitoring results.
Monitoring of Construction: Centralia Wastewater System Improvements Project
In responce to prolonged drought conditions, Seattle Public Utilities (SPU) initiated a series of emergency actions to pump water from the lake into the municipal water supply system. Several ground disturbing actions, including building an access road, excavation of the lake's outlet channel margins, dredgeing of the outlet channel, and extending the height of the discharge dike, involved impacts to two archaeological sites eligible for listing on the National Register of Historic Places. The scope of work included intensive archaeological survey of the APE, controlled surface collection of lithic artifacts, and cultural resource monitoring of construction and excavation activities. A technical report was prepared that described the work conducted, methods, and analytical results.
In 2003 and 2004, Cascadia Archaeology carried out archaeological data recovery for a large railroad overcrossing in the St. John's District of Portland, Oregon. This work was carried out in compliance with Section 106 and performed under contract to CH2M HILL on behalf of the city of Portland. Deeply buried under 20th century fill materials was a late prehistoric archaeological deposit interpreted as a Chinookan winter village. The scope of work included excavation in deep shored trenches, laboratory analyses of the recovered materials, and preparation of a popular summary, video, and final technical report of findings.
In 2001 and 2002, Cascadia Archaeology carried out archaeological testing at Cama Beach State Park, a 1930s fishing resort that is listed on the National Register of Historic Places. The Washington State Parks and Recreation Commission planned substantial renovations to the park and retained Cascadia Archaeology to conduct an archaeological evaluation of the property. The scope of work involved augering, excavation of shovel probes, and larger test excavation units to evaluate the integrity and significance of a shell midden deposit that lies beneath the resort. The testing effort revealed that the deeply stratified midden deposits span at least 16 centuries, contain an abundance of vertebrate and invertebrate faunal remains, and retain a high degree of archaeological integrity.
During the summer of 2001, Cascadia
Archaeology carried out a cultural resources reconnaissance survey for the Centralia Washington Flood Damage Reduction Project. Performed under contract to the Seattle District, U.S. Army Corps of Engineers, the project involved pedestrian survey of a 10 percent sample of the acreage on the Chehalis River floodplain to be affected by proposed flood control measures. The reconnaissance covered 266 acres and employed systematic shovel probes for those tracts of land where ground surfaces were obscured by vegetation. Nine previously unrecorded archaeological sites and one isolate were recorded and boundaries of two previously recorded sites were extended.
Archaeology carried out a cultural resources reconnaissance survey for the Centralia Washington Flood Damage Reduction Project. Performed under contract to the Seattle District, U.S. Army Corps of Engineers, the project involved pedestrian survey of a 10 percent sample of the acreage on the Chehalis River floodplain to be affected by proposed flood control measures. The reconnaissance covered 266 acres and employed systematic shovel probes for those tracts of land where ground surfaces were obscured by vegetation. Nine previously unrecorded archaeological sites and one isolate were recorded and boundaries of two previously recorded sites were extended.
