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Cultural Resources Review Results #9, March 4, 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 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 site visit on 3/4/21 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 material was spread by machine on a flat hard surface to allow for an archaeologist to clearly review them (Photograph 1). The viewing area had a moderate sludge layer on the surface (Photograph 1). The material appeared  to have been previously rinsed. (Photographs 2 and 3). The material reviewed was unsorted and comprised mainly of rocks and small pieces of wood, tires, miscellaneous metal (Photographs 4  and 5), car parts and a few large timbers (Photograph 6). Two items were recovered and are recommended for retention and further assessment: A copper valve with the manufacturing  stamp ‘Larkin MFG Co. Patented Daytona OH. USA’ (Photograph 7), and a metal and wood hand truck with ‘American Steelite’ stamped on the rubber wheel (Photographs 8 and 9). A cursory Google search on both companies suggests that the hand truck may be later-20th century, while the brass valve may be part of a fire suppression apparatus and is likely old enough to be of  historical interest. More research on these items is recommended. Both items have been stored on site.

Photograph 1 – Overview of the unsorted material to be reviewed on 3/4/21, front view.
Photograph 2 – Overview of previously rinsed material (left and far right)
and unrinsed (in between) material to be reviewed on 3/4/21, front view.
Photograph 3 – Example of the typical condition of the material in the
stockpile to be reviewed, front view.
Photograph 4 – Example rocks and wood in the stockpile to be reviewed, front view.
Photograph 5 – Example large rocks and miscellaneous metal in
the stockpile to be reviewed, front view.
Photograph 6 – Large timbers, front view.
Photograph 7 – Copper valve, front view.
Photograph 8 – Hand Truck, side view.
Photograph 9 – Hand Truck wheel, front view.


The archaeologist retrieved two items to retain for further analysis: One copper valve and one  metal and wood hand truck.


The archaeologist concludes that two items, a copper valve and hand truck, recovered during the sediment screening on 3/4/21 retain possible historic/archaeological significance. Per the draft Cultural  Resource Monitoring Plan, the archaeologist further recommends that all the non-historically/archaeologically significant debris that has been reviewed by the archaeologist as of 3/4/21 may be disposed of.

Figure 1 – Approximate area dredged between March 1, 2021 and March 4, 2021.