Here is as shot of the PB4Y that shows the plane and the large rocks off the front of the plane.
This image shows the popular dive site of one of the sunken I90 Bridge sections. Also shown are several of the nearby bridge footings and debris areas.
This mosaic shows several of the mosquito fleet wrecks. These were the early passenger ferries that moved people and goods accross the lake before the floating bridges were built.
Nice shot of divers Dan Warter and Erik Foreman descending on the wreck of the Vixen in Lake Washington.
This image shows the location of the FG-1D Corsair in Lake Washington. Located just off shore with access from shore for divers this site is primarily a debris field. Most of the artifacts associated with this plane remain scattered throughout the debris field and while a popular dive site the notoriously poor visibility of Lake Washington has protected this wreck.
This image is of the passenger steamer Falcon resting in 200' fresh water in Lake Washington. This steamer last served on Lake Washington as a passenger ferry. It is unknown how it came to rest on the bottom but the wreck does appear to have been stripped of anything valuable prior to sinking.
This image is of Target 420. It is located in 200' of fresh water and is in the area where we are looking for a historically significant wreck. Despite a close pass with a towfish in the top image the shadow is not as strong as hoped. There is clearly deck structure but the layout is not fully clear. The image is showing a hard roof remains intact and is reflecting strongly. Significant erosion at the stern is evident from the gently lake currents moving the mud.
The other two images were taken to show other structural components. The second image shows a hull shape similar to a large sailboat and the bottom image shows what may be a mast that has collapsed forward.
The below side scan image was taken to look at the debris field around the cannery tender. This wreck appears to have struck stern first while sinking. The large debris item behind the wreck gives a hard return but poor shadowing. It is likely this is hull planking laying in the mud.
This is image is a sidescan image of the whaling ship Fresno. The Fresno caught fire while at dock in 1923 and was a total loss. The ship was scuttled in 180 feet of water in Madenbauer Bay and broke apart either during the sinking or, more likely, impacting with the bottom.
This image was taken with a hull mounted transducer in rough conditions. You can see the waves in the rocky hillside at the top of the image.
This barge nozed into the mud north of the 520 Bridge in Lake Washington. It remains standing at appromiately 45 degrees.
The below mosaic shows part of the end of the old Navy Runway at Sandpoint in Seattle. This drops from 20' to 145'. In the second image you can see a broken wreck.
These images were created during the testing of a new side scan configuration. The first shows the side scan mosaic without blending into the underlying map image. The second shows the shoreline and docks. When reviewed in Global Mapper the mooring blocks, debris, etc. are clearly visible.
The below image is of the Arrowhead Point Barge. This is a listed obstruction on most NOAA charts. In this image you can see equipment on the barge deck as well as planking.
This image shows the wreck in relation to the shoreline.
Chris Borgen and Eric Foreman dove on an unknown target that had proven difficult to image. This target lies between two rises in the Lake bottom which prevented detailed imagery from a tow fish. These images were taken with a hull mounted unit.
In this first image you can see the two divers approaching the target. No bubbles are present as both divers are on rebreathers. Target depth is 180' fresh water.
This next image is of the same target using a hull mounted side scan.
Here are a few photo's from a dive on the tug "Louie" that Chris Borgen and Erik Foreman did a couple months back. The visibility always seems bad in this particular spot, even for this shallow wreck. This is an enjoyable dive, easily accessible from shore. Photos courtesy of Chris Borgen.
Here is a sidescan image of Louie and a nearby boat.