Nestucca Bay Refuge closed weekdays from 8/8 - 9/9/2011
Nestucca Bay National Wildlife Refuge, including the Pacific View trail and both parking lots, will be closed to the public on weekdays from August 8 through September 9, 2011 to allow construction on Christensen Road. Â Â Christensen Road will be closed at the junction with Highway 101. During this construction period, Christensen Road and the refuge will be open from dawn to dusk on Saturdays and Sundays, and on Labor Day Monday September 5. Heavy equipment will be blocking the road during weekday construction hours, and no traffic will be permitted. Â Construction work taking place during this time includes replacement of the Upton Slough culvert with a pre-cast concrete bridge; repair and stabilization of the asphalt road embankment in two locations; and scraping and regraveling of the upper road.
The replacement of the Upton Slough culvert with a pre-cast concrete bridge near the junction of Christensen Road and Highway 101 is intended to restore fish habitat by increasing the waterway cross section of Upton Slough (a tributary to Little Nestucca River and Nestucca Bay) from 12 square feet to 40 square feet with a natural soil bottom and stream banks. Â This project will allow for the re-establishment of the natural morphology of the creek in this location and will facilitate salmonid passage. Upton Slough, which drains a 681-acre watershed, is a partially channelized stream emptying into Nestucca Bay. Â This stream channel currently passes underneath Christensen Road through a 48â€� concrete culvert, which restricts flow to 12 square feet. Â The stream has flooded and overtopped the overlying refuge entrance road during very heavy rainfall. Â Two tide gates, one of which is â€œfish-friendlyâ€�, are located at the north end of Upton Slough at its terminus with the Little Nestucca River and Nestucca Bay. Upton Slough and the associated pasture ditch system allow fish to enter from Nestucca Bay, and the channel is within critical habitat designated for threatened coho salmon (Oregon Coast ESU). Â
The road embankment project will stabilize the edge of an asphalt road by widening the embankment fill about two to three feet with riprap and crushed aggregate. Â This project is necessary to prevent further deterioration and subsequent failure of the asphalt road edge. Â The upper road, which has a gravel surface from the lower to the upper parking lot, has not been regraveled since its construction in 2008 and is deteriorating. Â Scraping and regraveling is needed to continue to provide a safe, comfortable driving surface for visitors.
Posted by the Oregon Coast National Wildlife Refuge Complex Staff at 1:36 PM in Category: Nestucca Bay NWR