Near the Riverdale Raceway, SR 504 intersects the east end of SR 505, which provides connections to I-5 and Toledo. The highway crosses over the river on the Coal Bank Bridge and continues along the north side of the North Fork Toutle River, following the narrow valley to the east of Beigle Mountain. SR 504 continues along the north side of the lake and passes through the town of Toutle at the confluence of the Toutle River's two forks. Helens visitor center and Seaquest State Park lie. The highway follows a minor stream heading southeast into the wetlands around Silver Lake, where the Mount St.
![mt washington observatory mt washington observatory](http://mediad.publicbroadcasting.net/p/mpbn/files/styles/medium/public/201712/mount_washington_observatory.jpg)
SR 504 travels northeasterly through a small commercial area before ascending into the hills above Salmon Creek, passing several farms and wineries along the way. The street continues southwest into downtown Castle Rock as SR 411 and I-5 Business. SR 504 begins as an extension of Huntington Avenue at an interchange with I-5 northeast of Castle Rock. The Hoffstadt Creek Bridge on SR 504, located near the Toutle River Sediment Dam Helens, particularly in the mid-2000s, has resulted in closures and evacuations along the highway at various times. A part of the old alignment near the Toutle River Sediment Dam is signed as a spur route. The state government rebuilt most of the highway from 1988 to 1997, relocating it further north and connecting to new interpretive centers at Coldwater Ridge and Johnston Ridge. Helens and its subsequent lahar on the North Fork Toutle River. It was renumbered to SR 504 in 1964 and remained popular with loggers and tourists, requiring bridges and sections to be rebuilt.Ī major section of SR 504 was destroyed in the May 18, 1980, eruption of Mount St. SSH 1R initially ended at the boundary of Columbia National Forest (now Gifford Pinchot National Forest), but was extended in 1961 to the timberline of the mountain. The Cowlitz County government built the Spirit Lake Highway in 1903 and paved it in the early 1930s before it was transferred to state control, becoming Secondary State Highway 1R (SSH 1R) in 1937. The highway begins at an interchange with Interstate 5 (I-5) and SR 411 in Castle Rock and terminates at the Johnston Ridge Observatory near Spirit Lake. Helens area, serving as the main access to the Mount St. It travels 52 miles (84 km) along the North Fork Toutle River to the Mount St. State Route 504 ( SR 504, designated as the Spirit Lake Memorial Highway) is a state highway in southwestern Washington state in the United States.
#MT WASHINGTON OBSERVATORY FULL#
While we have not yet made full use of the superb, web-enabled graphs, the ability to monitor the rise or fall of temperatures over time over the web has been a useful aid in certain occasions when deciding on important summit matters.Map of the Toutle River Valley in southwestern Washington with SR 504 highlighted in red “Vista Data Vision has helped us by alleviating the work of having to design a custom interface to accumulate and store data. “We needed a way to quickly and easily monitor these files for changes, and compile a database so that we could watch temperature trends at different elevations, as well as the ability to access historical data for scientific studies. I have received many emails from people who love seeing the temperatures at different elevations, and VDV is what makes continuously updating this page possible. The ability to access the MySQL database from external queries, and not just through the data browser, has enabled us to display data on our web site and custom displays that are found in several locations in the area.
![mt washington observatory mt washington observatory](http://hikethewhites.com/obs/morn15.jpg)
#MT WASHINGTON OBSERVATORY SOFTWARE#
“Vista Data Vision software from Vista Engineering is used to manage and display the data. Each station has a Campbell Scientific 107-L Temperature Probe, a Campbell Scientific CR10X Measurement and Control Module, a Campbell Scientific MSX 10 or 20 Watt Solar Panel, a Campbell Scientific PS100 12 Volt Power Supply with Charging Regulator, and a FreeWave Wireless Data Transmitter Radio (FGR-115RC) with a 900 MHZ antenna. Jakob Odell, data system programmer for the observatory, said, “We have a network of eight different temperature monitoring stations located at various locations around Mount Washington. Located in the White Mountains, it is a nonprofit and educational institute whose purpose is to maintain a permanently staffed observatory atop Mount Washington, and to use this unique station and other facilities to conduct programs of environmental observation and technical research. The Mount Washington Observatory in New Hampshire is one of the oldest weather observatories in the world.