Columbia Estuary Data Development Program - Bathymetric Atlas of the Columbia River Estuary

This atlas is a collection of maps from several hydrographic studies undertaken by Northwest Cartography, Inc. between 1979 and 1982 for the Columbia River Estuary Data Development Program (CREDDP), the U.S. Army Corps of Engineers Portland District, and the Corps' Waterways Experiment Station (WES). It also includes maps from surveys undertaken around three other historical time periods (1868, 1935, and 1958) by the U.S. Coast and Geodetic Survey (now the National Ocean Survey, a division of the National Ocenaographic and Atmospheric Administration).

Columbia Estuary Data Development Program - Avifauna of the Columbia River Estuary

The purpose of the Avifauna work unit within the Columbia River Estuary Data Development Program (CREDDP) was to determine the role of birds within the Columbia River Estuary. The study was divided into several phases to meet this objective. Initially, a literature review of previous avian research was conducted (Jones & Stokes Associates 1980).

Columbia Estuary Data Development Program - Abstracts of Major CREDDP Publications

This document is one of a set of publications and other materials produced by the Columbia River Estuary Data Development Program (CREDDP). CREDDP has two purposes: to increase understanding of the ecology of the Columbia River Estuary and to provide information useful in making land and water use decisions. The program was initiated by local governments and citizens who saw a need for a better information base for use in managing natural resources and in planning for development.

Bi-State Program, Additional Reports. Bacteria Studies, Sep-Oct 1992 & Nov-Dec 1992.

September - October 1992:
High enterococcus bacteria counts detected during a reconnaissance survey in 1991 indicated a possible public health risk in the lower Columbia River. The purpose of this project was to determine if a chronic public health risk exists during high contact recreation periods due to bacteria contamination. Ecology sampled twelve stations between the mouth of the Columbia River and river mile 170 (Hood River) weekly- from September 1 to October 12, 1992.

Action Effectiveness Monitoring for the Lower Columbia River and Estuary Habitat Restoration Program Annual Report for Year 11 (October 1, 2014 to September 30, 2015)

This report describes Action Effectiveness Monitoring program accomplishments during October 1, 2014 to September 30, 2015, or Year 11 of this on-going project. For more information on this project since its inception in 2007, please see previous years' annual reports.

Action Effectiveness Monitoring for the Lower Columbia River and Estuary Habitat Restoration Program Annual Report for Year 12 (October 1, 2015 to September 30, 2016)

This report describes Action Effectiveness Monitoring program accomplishments during October 1, 2015 to September 30, 2016, or Year 12 of this on-going project. For more information on this project since its inception in 2007, please see previous years' annual reports.

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