ESS 230 Field Trip 3Cedar RiverMeet at Johnson Hall at 9:00 am Saturday. We’ll drive South on I-5 to Highway 450 where we’ll head East to State Highway 169 toward Maple Valley. We will follow the Cedar River upstream for about 12 miles before meeting our raft guides and putting into the river for an approximately 5 mile trip downstream from the Highway 169 bridge to the Cedar Grove bridge. We will probably be done with the float trip at 2pm and, unless something unexpected happens, we will be back to Johnson Hall between 3pm and 4pm. Things to bring:LunchWarm clothesShoes / Footwear for wading into the riverGloves/hat RaingearThings that will be provided:Life vestsOars (yes, you do have to row)BoatsGuidesCedar RiverThe Cedar River is located just South and East of Seattle. It drains into Lake Washington at the town of Renton. Bring warm clothes and be prepared to get wet! The float will be non-technical and we will have a trained river guide in each boat (4 to 6 people per boat). The water is generally low this time of year, but this is ariver trip and you may fall in – bring a spare set of warm clothes (or at least socks) to change into if you do get wet. Bring gloves, hat, rain gear, and warm clothes. If you have hip waders they will be useful for getting into and out of the river. We will have to wade into the river to launch the boats! So either bring appropriate footwear (e.g., waders or wet suite boots) or be prepared to get wet (and possibly cold). QuickTime™ and aPNG decompressorare needed to see this picture.Put in spotTake out spotMouth of the Cedar RiverMiddle Reach of the Cedar RiverWe will put in at the highway 169 bridge and float north to the Cedar Grove bridge. QuickTime™ and aPNG decompressorare needed to see this picture.Put inspotTake out spotQuickTime™ and aPNG decompressorare needed to see this picture.QuickTime™ and aPNG decompressorare needed to see this picture.ESS 230 Field Trip 3Questions to address in lab write up:Describe the relationship between the areas of the channel selected by spawning salmon for spawning and the types of habitat available to them in the channel as a whole (i.e., do they select particular kinds of places or just spawn wherever?).Is there a difference between the size of the sediment on the river bed and within the gravel bars?What are the primary sediment delivery processes to the CedarRiver?What is the relationship between the river and its valley? Between the sediment in the river and the sediment exposed inthe valley walls?Does the river erode faster laterally or vertically?How big a tree does it take to make a “key member” on the Cedar?What’s happened to the Cedar River in the past 15,000
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