HHD - Pool_Restriction

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HOWARD HANSON DAM

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Last Updated

20-Aug-2010

Information, documents and maps regarding the Howard Hanson Dam's Right Abutment Investigation, Pool Restriction, and its potential impacts.

Briefings and Presentations

	August 9, 2010 Stakeholder's Update Briefing
	City of Auburn Briefing - October 2009
	Formal Remarks - Press Conference -- 11/05/09
	Howard Hanson Dam - Stakeholder Update - July 13, 2009
	Howard Hanson Dam Update October 2009
	Interim Measures Update 11/5/09
	Spanish Language Presentation
	Stakeholder's Update March 18, 2010

Environmental Assessment

	Draft Environmental Assessment & Biological Assessment
	Final Environmental Assessment
	Public Notice Environmental Assessment - Howard Hanson Dam Right Abutment Investigation, Reservoir Refill, Reservoir Drawdown, and Interim Repair
	Public Notice Supplemental Environmental Assessment
	Supplemental Environmental Assessment

Fact Sheet

Frequently Asked Questions

Images

	Aerial Photograph of Howard Hanson Dam with notations of features
	Close-Up Photo of Right Abutment Depression - Flood Damage - Image
	Col. Anthony Wright and Mayor Jim Haggerton Inspect the delivery
	Col. Anthony Wright updates elected officials and the media during a tour of Howard Hanson Dam Mar. 19, 2009
	Congressional Visit to Howard Hanson Dam
	Core drilling at Howard Hanson Dam
	Drill Rigs on Howard Hanson's Right Abutment drill grout to fill voids
	Engineers await the heavy equipment operator to remove another layer of material during the Depression excavation
	Engineers Confer during investigations at Howard Hanson Dam's Right Abutment
	Engineers Discuss Layers of Sediment on the Right Abutment at Howard Hanson Dam
	Historic Pool Level of 1,189 feet on Jan. 8, 2009 - Image
	Inspecting the first shipment
	Map of Howard Hanson, The Green River & Downstream Communities
	Mayor Jim Haggerton reads up on Hesco Installation
	More Tools to fight flooding arrive
	Photo of Depression Found in right abutment following Jan. 09 flood of record
	Placement of the Grout Curtain at Howard Hanson Dam
	U.S. Army Corps of Engineers, Chief of Engineers, tours Howard Hanson Dam
	Workers build a drilling platform on the right abutment at Howard Hanson Dam

Potential Flood Risk Based on Flows

Press Releases

	Army Corps of Engineers sees interim work Howard Hanson Dam reducing Green River Valley Flood Risk
	Engineers at Howard Hanson Dam begin to raise reservoir for additional water supply mission
	Engineers at Howard Hanson Dam move to restrict pool level
	Engineers at Howard Hanson Dam Putting Grout Curtain Through Testing
	Engineers begin to fill reservoir
	Engineers continue investigation, gathering data at Howard Hanson Dam
	Green River Flows to Increase to Lower Reservoir Behind Howard Hanson Dam
	Howard Hanson Dam outflows on Green River to Increase May 12
	Investigation into right abutment seepage issues continues
	Panel of engineering experts concur with current investigation findings at Howard Hanson Dam
	Pool level at Howard Hanson Dam reaches 1,147-foot benchmark
	Pool level at Howard Hanson Dam reaches 1,157-foot benchmark
	Pool level at Howard Hanson Dam slated to reach 1,167-foot benchmark

Reports