Summary of Site Inventory Revisions

Sites in the Inventory were all renamed to create consistency between the Columbia River Estuary Dredged Material Management Plan and the U.S. Army Corps of Engineers 1998 Dredged Material Management Plan & Supplemental Environmental Impact Statement: Columbia and Lower Willamette River Federal Navigation Channel. Previously, a name was assigned to each site in the following format: planning jurisdiction - type of disposal site - approximate river mile (e.g. As-S-18.7). The sites were renamed to reflect the state and the approximate river mile (e.g. O-18.7). As a result, the inventory is organized by State in order of river mile, starting at river mile 3, instead of by planning jurisdiction.

Site specific information was also updated for all the sites, where necessary. This information included any of the following: owner; jurisdiction; acres/feet; capacity; volume of disposed material; date of disposal; source of disposed material; land-use designation; current use; and projected use. A common name for each site was added, where appropriate (e.g. Tongue Point for O-18.2).

It is important to note that flow-lane disposal is the preferred alternative of the Port of Astoria and the Corps of Engineers for dredging projects within the Estuary. Consequently, many of the smaller sites that had not received dredged material in many years and/or were no longer required for any of the projected dredging projects were removed from the site inventory.

The designations of "site priority" was removed from the plan. Most of the sites designated "Priority 2" in the previous plan were not required to meet the dredged material disposal needs of the past 15 years. Dredging project proponents indicated that they would not be required for projected dredging needs either. Likewise, the sites presented as "Additional Dredged Material Disposal Sites" were removed from the inventory due to significant environmental, land-use or engineering issues related to those sites.

Table E-1: Site Inventory Ammendments