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Cultural Resources Review Results #4, January 8, 2021


Dredged material is processed according to the Level 1 Archaeological Monitoring protocol outlined in the draft Cultural Resource Monitoring Plan (revised September 2020). This protocol calls for dredged soft sediments to be placed directly into barges, floated to the processing facility, and screened over bars on a vibrating platform. Items removed during the vibratory screening process are then sorted by trained personnel as per the draft Cultural Resource Monitoring Plan. Items of potential interest (possible artifacts or objects of local interests) are placed in a separate stockpile and photographed for archaeologists to review. These items are then placed in a holding area for archaeologists to inspect. To date, the vast majority of the recovered items consisted of modern debris and timbers.


An archaeologist conducted a scheduled visit at the dredge material processing facility on 1/8/21 to review the recovered items in person with the assistance of a dredge material processing facility machine and operator to sort through stockpiled items. Photographs were taken of stockpiled items.

The archaeologist reviewed photographs of items recovered from the dredge material processing facility sediment screening on 1/5/21 and 1/7/21 prior to the site visit. The recovered items were spread by machine on a flat hard surface to allow for an archaeologist to clearly review them (Photographs 1 through 14). Any item of potential interest was separated, rinsed and assessed. The majority of the material reviewed  consisted of small milled lumber and plywood (Photograph 1). The other items reviewed  consisted of modern debris, including car engines (Photograph 2), tires and large concrete blocks  (Photograph 3) and larger timbers (Photograph 4). In addition, several cars of modern vintage  that arrived on site in December were reviewed (Photographs 5 & 6) as well as two cars that  arrived on site recently (Photographs 7 & 8). A large quantity of timber pilings that were  separated from the other material prior to the site visit were also reviewed (Photograph 9). Three items were recommended for retention; A small cast iron stove (Photographs 10 & 11), a piece  of unidentified machinery or motor (Photograph 12) and a large piece of curved timber  (Photographs 13). All three items were rinsed and put inside the storage area (Photographs 14).  The stove has a rope tied around it suggesting it was used as an anchor of some kind.

Photograph 1 – View of plywood and other wood.
Photograph 2 – Example of car engine recovered, front view.
Photograph 3 – Example of large concrete blocks, front view.
Photograph 4 – Example of large timbers recovered, front view.
Photograph 5 – Example car that arrived in December, front view.
Photograph 6 – Example a second car that arrived in December, front view.
Photograph 7 – Example car that arrived on site recently, front view.
Photograph 8 – Example of another car that arrived on site recently, front view.
Photograph 9 – Example pre-sorted timbers, front view.
Photograph 10 – Iron stove with rope tied to it, front view.
Photograph 11 – Iron stove, back view.
Photograph 12 – Unidentified machine or motor, front view.
Photograph 13 – Unidentified piece of curved wood, front view.
Photograph 14 – Items of interest: stove, machine and wood in storage area, front view.


During this visit to the dredge material processing facility, the archaeologist preliminarily identified three items of interest from the screening of Level 1 dredged debris to be retained for further analysis. The piece of wood recovered on December 18th that was to be documented was not present in the stockpile area and therefore, no further documentation could be conducted.


The archaeologist concludes that three items recovered during the sediment screening at the dredge material processing facility may retain historic/archaeological significance. Therefore, the archaeologist recommends that the stove, motor and curved wood be retained for further analysis and possible documentation. Figure 1 and Figure 2 indicate the approximate areas that were dredged. Per the draft Cultural Resource Monitoring  Plan, the archaeologist  further recommends that all the non-historic/archeologically significant debris that has been reviewed by the archaeologist as of 1/8/2021 may be disposed of.

Figure 1 – Approximate Area Dredged between December 23, 2020 and December 24, 2020.
Dredging was not conducted on December 21, 22, or 25, 2020.
Figure 2 – Approximate Area Dredged between December 28, 2020 and December 31, 2020.
Dredging was not conducted January 1, 2021.
Figure 3 – Approximate Area Dredged between January 4, 2021 and January 7, 2021.
Dredging was not conducted January 8, 2021.