Sunday, October 10, 2010
Checking out Sacramento Bypass Wildlife Area & Sacramento Weir.
Road Map, Satellite Map, Terrain Map & Topographic Map.• Use the interactive map - click and drag to reposition the map. Map user FAQ.
• Point at the red markers to see their labels. Use the tool on the left to zoom and pan.
• Map=roads. Satellite=satellite map. Terrain=3D shaded topo. Topo=topographic map.
• Full-Screen Map - Sacramento Bypass Wildlife Area.
coordinates - landmark (red marker on map).
N 38.60171 W 121.57316 - Sacramento Bypass (A).
N 38.60574 W 121.55720 - Sacramento Weir (B).
N 38.59326 W 121.61333 - Yolo Bypass (C).
N 38.58865 W 121.50503 - Sacramento River flow gauge at I Street Bridge (D).
Sacramento WeirSacramento Weir comprises the entire eastern edge of the Sacramento Bypass. Old River Road runs directly on top of the weir, leaving a gap underneath where the water can flow below the roadway. When the Sacramento River is in flood stage water flows over the weir through the Sacramento Bypass and on to the Yolo Bypass, hopefully reducing the likelihood of catastrophic flooding in Sacramento. "Under U.S. Army Corps of Engineers rules, the weir is opened after the Sacramento River hits the 27.5 foot stage at Sacramento's I Street Bridge with a forecast to continue rising." (DWR To Open Sacramento Weir - Free Online Library) On this calm, sunny day in October the Sacramento River was flowing at 3.3 feet (Sacramento River flow gauge at I Street Bridge - CA Dept Water Resources) with a water flow forecast for only minor fluctuations in the coming days (Sacramento River at I Street Bridge flow forecast - National Weather Service)
• More photos: 2010-09-10 Sacramento Bypass Wildlife Area.
Photographed from the Sacramento River side, it was pretty amazing how far below the weir the river was flowing. It was hard to imagine the river rising more than 20 feet higher and flowing over the Sacramento Weir during the rainy season. The Sacramento River doesn't reach these high flow rates in many years, but whenever it happens next I'll be going back there and getting some more pictures!!
For more information:
• Yolo Bypass - Sacramento River Portal and Library.
• California Hiking Trails - Statewide Information.
• Biking, Hiking & Camping Trip Reports - BRT Insights.
Tags: Sacramento Weir, Sacramento Bypass, Sacramento Bypass Wildlife Area, Yolo Bypass.
Tags: Sacramento Valley, Sacramento River, Yolo County, California.