Here you can see all page revisions and compare the changes have been made in each revision. Left column shows the page title and transcription in the selected revision, right column shows what have been changed. Unchanged text is highlighted in white, deleted text is highlighted in red, and inserted text is highlighted in green color.

2 revisions
Wjhoward at Mar 11, 2017 09:58 PM


oil drum, the operator himself would pick up the drum and sinker and place it on station en route. Early in 1941, this was common practice as that section between The Dalles, Oregon and Umatilla, Oregon, was seriously handicapped by the lack of sufficient boat equipment. At the beginning of the war, an especially built 65' buoy boat was assigned to that area.

Experiments were made to determine the effectiveness of surface riding buoys, the first being with a Wallace and Tiernan and a 13th District boat type buoy, designed for the Columbia River. The buoys were placed on station in the Upper Columbia where the current was 8 miles per hour. The Wallace and Tiernan buoy was lost a month after its installation and a careful search of the river banks and dragging the river bottom failed to produce it or its mooring. Reports indicate that, until the time it disappeared, it had performed in an extremely satisfactory manner. The 13th District buoy was still in place at the conclusion of the war.

On the following page are photographs of the Headquarters pre-fabricated fast water buoy during assemblage and on station. The illustration of the boat type buoy is the District buoy which was placed on station and which at the conclusion was still in position. The Headquarters buoy did not prove equally successful.



At Vancouver, Washington, Experiments were conducted in the use of Scotchlite, which is a plastic reflector material, on daymarks in the summer of 1943. Its success paved the way for similar installations on beacons in the Upper Columbia around The Dalles, Oregon. However, due to the heavy sands which stuck to the Scotchlite, it was abandoned in favor of the reflector buttons which protruded far enough from