Here is as shot of the PB4Y that shows the plane and the large rocks off the front of the plane.
This series of images was taken during a quick survey of the area between Bellevue and Mercer Island. The first shows a large barge. The second a smaller barge 20'x40'. The third shows an unknown wreck which may be a small sailboat but is missing a mast and deck structure so it may be worth looking at.
This data set shows the wreck of the Governor. This is a famous wreck locally and a very popular and difficult dive. The wreck lies in 240' in heavy current.
48 Degrees 09'21.2920"N, 122 Degrees 44'58.7862
48 Degrees 09'24.4801"N, 122 Degrees 45'1.4206"W
These images show the wreck of the Possession Point Ferry. The data for these shots was collected by Williamson and Associates for NOAA. Divers should note the nearby wrick structure.
Wreck Location: 47 Degrees 53'50.0256"N, 122 Degrees 23'34.4858"W
These images were created using GlobalMapper
Here is another great image from SL Hydrospheric's new SLH ProSAS60 synthetic aperture side scan sonar. This wreck is located in Elliott Bay, Seattle WA.
This image shows the many wrecks of the Tyee Breakwater is Commencement Bay, Tacoma WA. The area is littered with wrecks and debris. In the shadow of the hillside rests yet another wreck.
The image was generated using NOAA Bathymetry data and Global Mapper
The wrecks of Shilshole are a great dive. This is a little current sensitive but can be done on scooters just about any day. To see all the wrecks a scooter and compass are a big help.
Omar: 47 Degrees 40'23.5907"N, 122 Degrees 25'23.1141"W
Dauntless: 47 Degrees 40'22.4355"N, 122 Degrees 25'22.7184"W
Tilted Barge: 47 Degrees 40'22.9399"N, 122 Degrees 25'18.9008"W
Deep Barge: 47 Degrees 40'26.3927"N, 122 Degrees 25'22.2711"W
These barges are a popular dive site here in Seattle. They are intact and while there is not much life growing on them they provide protection from the current and attract large fish life. This site is a lot of fun on a scooter.
North Barge: 47 Degrees 38'24.9093"N, 122 Degrees 25'37.8319"W
South Barge: 47 Degrees 38'24.8290"N, 122 Degrees 25'36.4101"W
These images were created with NOAA bathymetry data and Global Mapper.
Williamson & Associates took these images with with the SL Hydrospheric team using SLH's new SLH ProSAS60 synthetic aperture side scan the SAS60. The are getting a 3000 meter swath with 10cm of resolution at full range. Thanks for the images!
The ruins of the Lake Washingon Ship Yard remains just under the surface of the new Yarrow Bay Marina. In this image you can see two barges, three work boats, and the very large shadow on the right is the remains of the City of Tacoma.
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.
This image shows the location of the Alki pipeline a popular West Seattle dive site. The line on the right is the normal dive site. The pipeline on the left is a deeper pipeline that I had heard was in the area but have never actually seen in the water. This image was created using data from NOAA.
Nice shot of divers Dan Warter and Erik Foreman descending on the wreck of the Vixen in Lake Washington.
This images show the Alki fishing reef. This is a popular dive site in West Seattle and is easily accessible by scooter or boat. The reef is full of life and due to the large boulders used to create the reef there are plenty of hiding places for large marine life.
The image was created using Global Mapper and Bathymetry Data from NOAA.
The below image is of an area listed as an underwater forest. Most of these areas contain cut timber that sank during early logging efforts along the lake and can often be found where log booms were stored for shipment. While most of the timber in this image has been cut you can still see shadowing from standing or partially standing trees.
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 a popular training site in Lake Washington. Access is from shore between the swimming dock at Madrona Park. This site has many rock faces and drops quickly from 70' to 205'. The erosion channel you see is just to the north of the speed warning buoy. To the south the bottom becomes sediment slopes at around 180' but to the North rock face continues to 200' before becoming a flat mud landscape. With rare days of ambient light below 70', very silty rock face and bottom, rapid drops, and vertigo inducing water color this makes for a very good technical diving training site.