On November 19, 1998 (OSB1998-0088), the National Marine Fisheries Service (NMFS) completed an Endangered Species Act (ESA) section 7 informal consultation with Oregon Department of Transportation (ODOT) for the Charlotte Creek Quarry Rock Production project. NMFS concurred that the proposed action was not likely to adversely affect Oregon Coast coho salmon (OC coho) or Umpqua cutthroat trout because no in-water work was proposed and a vegetated buffer was to remain between Charlotte Creek and the quarry operations. However, during a production blast at the quarry on February 17, 2000, a substantial amount of rock landed in the creek and covered the riparian area. Since moving the rock would cause additional adverse impacts, the project was stopped until formal consultation could be completed. On June 26, 2000, NMFS received a request for formal consultation from the Federal Highway Administration (FHWA) to address impacts during the removal of the quarry rock from the riparian area and quarry production area, and remediation of the site.The objective of this Opinion is to determine whether the action to remove the quarry rock from the Charlotte Creek Quarry Rock Production site and subsequent site remediation is likely to jeopardize the continued existence of the OC coho salmon, or destroy or adversely modify critical habitat.