Protecting Public Health and the Environment.

§401 Certifications: Dredge & Fill

§401 Certifications of Nationwide and Regional General Dredge and Fill Permits

Nationwide General Permits

DEQ has certified with conditions the majority of the 2017 Army Corps of Engineers Nationwide Permits (NWPs) authorizing the discharge of dredged or fill material associated with general types of activities such as surveying; mining; building bridges; restoring aquatic habitat; constructing boat ramps, recreational facilities, and residential, commercial, and institutional developments; controlling floods; and managing stormwater.

DEQ partially certified the following three NWPs: NWP 12 (Utility Line Activities), NWP 13 (Bank Stabilization), and NWP 14 (Linear Transportation Projects).

DEQ has denied the following seven NWPs: NWP 16 (Return Water from Upland Contained Disposal Areas), NWP 17 (Hydropower Projects), NWP 23 (Approved Categorical Exclusions), NWP 51 (Land-Based Renewable Energy Generation Facilities), NWP 52 (Water-Based Renewable Energy Generation Pilot Projects). and NWP 53 (Removal of Low-Head Dams), and NWP 54 (Living Shorelines). DEQ will provide individual §401 certifications for activities authorized under the NWPs that have been denied on a project-by-project basis.

The 2017 certifications became effective on March 19, 2017.

Regional General Permits

DEQ has certified Regional General Permit–Idaho (RGP-I) authorizing the construction, repair, or replacement of non-commercial piers and floating docks for a joint-use pier or floating dock, marine launching rails, mooring piles, and portable boat lift stations.

DEQ has certified Regional General Permit 27 authorizing the addition of piers and floating docks, marine launching rails, mooring piles, and portable boat-lift stations in Lake Pend Oreille and Pend Oreille River.

DEQ has certified Regional General Permit–Management of Aquatic Invasive Species (RGP-AIS) authorizing the discharge of fill material, structures, and/or work associated with the placement of temporary benthic (bottom) barriers, mechanical harvesting, raking, pulling by hand, and divers using vacuum suction to control growth of invasive, noxious aquatic vegetation as designated by the Idaho State Department of Agriculture and usually associated with docks and swimming areas for safety and navigation purposes. The RGP-AIS also authorizes discharge of fill material, structures, and/or work associated with the placement of temporary benthic barriers and/or divers using vacuum suction to control the spread of nonnative bivalves and gastropods as designated by the Idaho State Department of Agriculture in areas identified with infestations.

DEQ has certified Regional General Permit–Emergency (RGP-E) authorizing the temporary discharge of dredged or fill material to restore, repair, and/or stabilize features that have been damaged, destroyed, or are in imminent danger of failing during emergency conditions, defined as conditions that would result in an unacceptable threat to human life, significant loss of property, and/or significant economic hardship.

To view a listing of regional general permits, visit the Army Corps of Engineers Walla Walla District Regional General Permits webpage.

§401 Certifications of Dredge and Fill Permits Requiring Individual Certification

CountyCorps Permit # / Project NamePermit TypeApplicant NameWater Body ImpactedIssuance Date
NWW-2005-2100162 - Creek reconstruction and rehabilitationAvimor Develop CorpsSpring Valley Creek06/04/18
AdaNWW-2012-100-B02 - Broadway Bridge Utility Line RelocationNWP 12Idaho Transportation DepartmentBoise River01/27/16
AdaNWW-2012-100-B02 - Broadway Bridge ProjectNWP 16Idaho Transportation DepartmentBoise River10/27/15
AdaNWW-2008-529-B03 - Walling Ditch Bridge ProjectNWP 14Boise Parks and Recreation DepartmentBoise River Side Channel - Walling Ditch07/28/16
AdaNWW-2015-566-B03 - Warm Springs Creek RealignmentNWP 12Harris Family Limited PartnershipWarm Springs Creek01/14/16
AdaNWW-2016-613-B03 - Concrete bridge constructionNWP 12 and 14James KisslerFivemile Creek01/11/17
AdaNWW-2015-566-B03 - Warms Springs Creek Sleeve InstallationNWP 12Harris Family Limited Partnership LLCWarm Springs Creek07/06/17
AdaNWW-2017-00441 - Meridian Road, Cherry Lane to UstickNWP 14Ada County Highway DistrictFivemile Creek, South Slough, and Jackson Drain10/10/17
AdaNWW-2017-673 - Bank StabilizationNWP 13Boise City Parks and RecreationBoise River11/28/17
AdaNWW-2017-366-B03 - Whitebark Subdivision No. 2 - Utility Line CrossingNWP 12BHH Investments, LLCTenmile Creek11/15/17
AdaNWW-2017-00451 - Pine Avenue projectNWP 14Ada County Highway DistrictFivemile Creek10/04/17
AdaNWW-2016-243-B02 - Dry Creek Trail, Phase 1NWP 23City of EagleDry Creek and Ballantyne Canal01/29/18
AdaNWW-2017-545-B02 - Meridian Maintenance YardNWP 14Idaho Transportation DepartmentNoble Drain02/05/18
AdaNWW-2014-369-B02 - State Street and Collister Drive intersection projectNWP 14Ada County Highway DistrictFarmer's Union Canal03/09/18
AdaNWW-2017-00070 - Ten Mile CrossingIndividualSCS Brighton LLCLawrence Kennedy Lateral03/09/18
AdaNWW-2008-141 - Warm Springs Creek Relocation ProjectIndividualBarber Valley DevelopmentWarm Springs Creek04/13/18
AdaNWW-2018-00097 - West Parkcenter Bridge RepairNWP 13ABC West, LLC and Summerset West, LLCBoise River04/30/18
AdamsNWW-2016-271-B03 - Culvert replacementsNWP 14Payette National ForestEast Branch Weiser River08/15/16
AdamsNWW-2016-380-B03 - Culvert UpgradeNWP 14Adams County Road and Bridge DepartmentLittle Creek09/15/16
AdamsNWW-2015-586-B02 - ITD/US 95, Curve FlatteningNWP 14Idaho Transportation Department D3Little Salmon River02/08/17
AdamsNWW-2017-153-B03 - West Branch Weiser River Culvert ReplacementNWP 14Payette National ForestWest Branch Weiser River05/31/17
AdamsNWW-2015-589-B02 - Little Rainbow Bridge ProjectNWP 16 and 23Idaho Transportation DepartmentLittle Salmon River01/29/18
AdamsNWW-2018-00172 - Culvert installations and replacementsNWP 3 and 14Payette National ForestTributaries to East Branch Weiser River06/07/18
AdamsNWW-2015-00200 - Bank ProtectionNWP 13Wilderness West LLCWeiser River07/11/18
BannockNWW-2005-3200032 - Peat Mining Adjacent to Marsh CreekIndividualBrandon OlsonMarsh Creek and Birch Creek02/18/16
Bear LakeNWW-2015-349-B02 - Georgetown Creek Bridge ReplacementNWP 14Idaho Transportation DepartmentGeorgetown Creek01/04/16
BenewahNWW-1994-0101520-C09 - Emerald Creek Garnet 1994 Permit Extension RequestIndividualOpta MineralsCarpenter Creek and Emerald Creek04/08/16
BenewahNWW-2016-589-B02 - Santa Creek Bridge ReplacementNationwideIdaho Transportation DepartmentSanta Creek05/08/17
BenewahNWW-2017-00298 - Bank stabilizationNWP 13James BealSt. Joe River07/21/17
BenewahNWW-2017-00320 - Bank StabilizationNWP 13Jack Buell, Buell Brothers, Inc.St. Joe River07/27/17
BenewahNWW-2016-552-B02 - State Highway 6 Tributary to Santa Creek box Culvert ProjectNWP 23Idaho Transportation DepartmentUnnamed tributary of Santa Creek12/15/17
BenewahNWW-2016-152-B02 - St. Joe River BridgeNWP 23Idaho Transportation DepartmentSt. Joe River12/27/17
BlaineNWW-2014-536-B02 - U.S. 20 Stanton Bridge Replacement ProjectNWP 16Idaho Transportation Department - District 4Big Wood River08/17/16
BlaineNWW-2015-557-I02 - Deer Creek Road Realignment ProjectNWP 14 and IndividualU.S. Forest ServiceNorth Fork Deer Creek and Deer Creek10/14/16
BlaineNWW-2017-00182 - Glendale Construction Gravel Extraction ProjectIndividualGene SluderBig Wood River02/07/18
BlaineNWW-2013-23-B02 - Adams Gulch Road Bridge ReplacementNWP 16 and 23Blaine CountyBig Wood River03/09/18
BoiseNWW-2017-00201 - Pole Creek Culvert ReplacementNWP 14Boise National ForestPole Creek06/09/17
BoiseNWW-2017-00098 - Big Spruce Creek CrossingNWP 14Boise National ForestBig Spruce Creek05/31/17
BoiseNWW-2017-00627 - Bogus Basin Recreational Association Snowmaking PondIndividualBogus Basin Recreational AssociationBogus Creek05/14/18
BoiseNWW-2016-515-B02 - Payette River Bridge projectNWP 23Idaho Transportation DepartmentPayette River06/21/18
BonnerNWW-2008-410 - Luther Deep Creek Bank StabilizationNWP 13Deborah LutherDeep Creek12/02/16
BonnerNWW-2007-00235 - Johnson Bank Stabilization ProjectNWP 13Schindler Johnson Family TrustPend Oreille Lake02/10/16
BonnerNWW-2016-032, 033, 034, and 035 - Fire Hydrant Placement ProjectNationwideSam Owen Fire DepartmentPend Oreille Lake03/29/16
BonnerNWW-2016-00538 - Dufort Road Pend Oreille River Bank StablizationNWP 13Bonner County Road and BridgePend Oreille River12/02/16
BonnerNWW-2016-434-B02 - Schweitzer Cutoff Road Phase IINWP 16Sandpoint (City of)Sand Creek12/02/16
BonnerNWS-PM-ER-17-01 - Riley Creek Recreation Area Bank StabilizationIndividualArmy Corps of EngineersPend Oreille River01/13/17
BonnerNWW-2015-00132 - Water intake line in Pend Oreille LakeNWP 12John NeilPend Oreille Lake02/27/17
BonnerNWW-2007-00487 - Bank StabilizationNWP 13John LobackPriest River07/10/17
BonnerNWW-2017-00395 - Culvert ReplacementNWP 14BNSF RailwayWestmond Creek08/28/17
BonnerNWW-2018-128 - BNSF Cocolalla Double TrackNWP 14BNSF Railway CompanyWestmond Creek and unnamed tributaries to Cocolalla Lake05/09/18
BonnerN/A - Carey Creek WMA Shoreline StabilizationN/AArmy Corps of Engineers Seattle DistrictPend Oreille River06/26/18
BonnevilleNWW-2017-652-B02 - Great Western Canal bridge replacementNWP 23Bonneville County Department of Public WorksGreat Western Canal01/02/18
BoundaryNWW-2015-077 - Meadow Creek SidingNWP 14Union Pacific RailroadSnyder Creek tributary to the Moyie River07/01/16
BoundaryNWW-2016-594-B02 - Box culvert replacementNWP 14Idaho Transportation DepartmentRound Prairie Creek05/15/17
BoundaryNWW-2017-00353 - Bank StabilizationNWP 13Jacquelyn GaleFall Creek08/18/17
CamasNWW-2016-20-B02 - Willow Creek Bridge Replacement ProjectNWP 16 and 27Idaho Transportation DepartmentWillow Creek09/25/17
CanyonNWW-2016-350 - Mason Creek CrossingNWP 14City of CaldwellMason Creek09/28/16
CanyonNWW-2016-00259 - Wilson Pond MaintenanceNWP 16Idaho Department of Fish and GameWilson Drain07/21/16
CanyonNWW-2017-084-B03 - Bioengineering Bank Stabilization ProjectNWP 13River Flat Ditch Co.Boise River05/22/17
CanyonNWW-2014-301-B02 - 10th Avenue Bridge Replacement ProjectNWP 14Idaho Department of TransportationIndian Creek11/28/17
CanyonNWW-2014-301-B02 - 10th Avenue Bridge ProjectNWP 16Idaho Transportation DepartmentIndian Creek03/05/18
CanyonNWW-2018-00026 - Boise River Bank StabilizationNWP 13Nampa PavingBoise River03/19/18
CaribouNWW-2018-140-I02 - Culvert replacementNWP 14Idaho Transportation ProjectsTincup Creek06/14/18
CaribouNWW-2018-135-I02 - Bridge ReplacementNWP 14Idaho Transportation DepartmentTincup Creek06/14/18
CassiaNWW-2016-00541 - Burley Riverbank MaintenanceNWP 13City of BurleySnake River09/26/17
CassiaNWW-2016-492-B02 - Raft River Eastbound and Westbound LanesNWP 23Idaho Transportation DepartmentRaft River06/08/18
CusterNWW-2011-00515-B02 - Road alignment and bridge constructionNWP 16Lost River Highway DistrictBig Lost River06/01/16
ElmoreNWW-2010-356-B02 - Bridge Replacement ProjectNWP 16Mountain Home Highway DistrictSouth Fork Boise River12/10/15
ElmoreNWW-2006-770-B03 - Bank StabilizationNWP 13Elk Valley RanchSouth Fork Boise River11/06/17
FranklinNWW-2015-351-B02 - Bear River Bridge ReplacementNWP 16Idaho Transportation DepartmentBear River09/14/16
FremontNWW-2016-376-B02 - Curr Canal BridgeNWP 14Idaho Transportation DepartmentCurr Canal09/21/17
FremontNWW-2012-129-B02 - Ora Bridge ReplacementNWP 23Fremont County Public WorksHenry's Fork of the Snake River02/28/18
GoodingNWW-2014-552-B02 - Bridge replacementNWP 23Idaho Transportation DepartmentZ Canal03/14/18
IdahoNWW-2015-578-B03 - Culvert replacement, aquatic organism passageNWP 14Idaho Transportation DepartmentLeggett Creek01/22/16
IdahoNWW-2016-141-B03 - Bridge Removal and Culvert InstallationNWP 14USDA-Forest Service, Nez Perce-Clearwater National ForestNineteenmile Creek06/09/16
IdahoNWW02016-134-B03 - Powell Creek Culvert ReplacementNWP 14USDA-Forest Service, Nez Perce Clearwater National ForestPowell Creek05/25/16
IdahoNWW-2016-279-B03 - Culvert UpgradeNWP 14USDA-Forest Service, Bitterroot National ForestSheep Creek08/04/16
IdahoNWW-2016-095-B03 - Culvert replacementNWP 14USDA-Forest Service, Nez Perce-Clearwater National ForestVan Buren Creek04/11/16
IdahoNWW-2017-00061 - Peasley Creek Culvert Replacement/Fish PassageNWP 14Idaho Transportation DepartmentPeasley Creek03/27/17
IdahoNWW-2017-537-B02 - Bridge ReplacementNWP 14Idaho Transportation DepartmentFish Creek11/08/17
IdahoNWW-2018-035-B03 - Mill Creek Bridge ReplacementNWP 14Nez Perce-Clearwater National ForestMill Creek03/21/18
IdahoNWW-2018-00089 - Moose Creek Culvert ReplacementNWP 14Idaho Transportation DepartmentMoose Creek04/23/18
IdahoNWW-2017-733-B03 - Forest Service Road No. 5669 Culvert ReplacementNWP 14Brandon KnaptonTributaries of Brushy Fork05/15/18
IdahoNWW-2018-00152 - Culvert ReplacementNWP 14USDA Forest Service Nez Perce Clearwater National ForestSouth Fork Spruce Creek06/05/18
IdahoNWW-2018-00231 - Culvert ReplacementNWP 14Nez Perce-Clearwater National ForestO'Hara Creek06/12/18
IdahoNWW-2018-00233 - Josephine Creek Culvert ReplacementNWP 14Payette National ForestJosephine Creek06/28/18
JeromeNWW-2013-361 - US 93 200 South Road ProjectNWP 14Idaho Transportation DepartmentL Canal, L-3 Lateral06/28/18
Kootenai2009-710-C09 - Mica Bay Boat Launch DredgingIndividualKootenai County Parks and WaterwaysCoeur d'Alene Lake02/29/16
KootenaiNWW-2015-432-C09 - Shoreline StabilizationNWP 13Marina Yacht ClubCoeur d'Alene Lake12/28/15
KootenaiNWW-2016-315-C09 - Bank StabilizationNWP 13John ColeCoeur d'Alene River08/26/16
KootenaiNWW-2016-471-C09 - Lilac Lane CulvertNWP 14Larry FluetFrench Gulch11/18/16
KootenaiNWW-2017-00254 - Abandoned Pipeline RemovalNWP 12Yellowstone Pipeline CompanyWolf Lodge Creek07/11/17
LatahNWW-2016-261 - Camp Grizzly Bank StabilizationNWP 13Inland Northwest Council, Boys Scouts of AmericaPalouse River07/28/16
LatahNWW-2015-506-B02 - Culvert replacementNWP 14Idaho Transportation DepartmentPurdue Creek01/04/16
LatahNWW-2017-00126 - Paradise Creek Linear CrossingNWP 14Logos SchoolParadise Creek05/02/17
LatahNWW-2017-557 - Bank StabilizationNWP 13Ruthie CarpenterPalouse River11/13/17
LatahNWW-2016-286-B02 - Gold Creek Bridge ReplacementNWP 14Idaho Transportation DepartmentGold Creek02/07/18
LatahNWW-2015-347-B02 - Robinson Park Bridge ProjectNWP 23North Latah Highway DistrictSouth Fork Palouse River02/15/18
LatahNWW-2004-0600046 - US Hwy 95 ProjectIndividualIdaho Transportation DepartmentSouth Fork Palouse River and Thorn Creek tributaries04/03/18
LatahNWW-2018-159 - Turn bay ConstructionNWP 14Idaho Transportation DepartmentPalouse River06/06/18
LatahNWW-2018-159 - Turn bay constructionNWP 14Idaho Transportation DepartmentMount Deary Creek06/06/18
LatahNWW-2018-159 - Turn bay constructionNWP 14Idaho Transportation DepartmentPalouse River06/06/18
LatahNWW-2018-00344 - Bank StabilizationNWP 13Robert CallihanPalouse River08/02/18
LemhiNWW-2016-00222-I02 - Agency Creek Culvert ProjectNWP 14Lemhi and Custer County Road and BridgeAgency Creek07/11/16
LemhiNWW-2016-00146-I02 - Pahsimeroi River Culvert ProjectNWP 14Lemhi and Custer County Road and BridgePahsimeroi River07/01/16
LemhiNWW-2016-00377-B02 - Lemhi River Bridge ReplacementNWP 23Idaho Transportation DepartmentLemhi River07/10/17
LemhiNWW-2018-00185-I02 - Culvert ReplacementNWP 14Idaho Department of Fish and GameEighteenmile Creek07/20/18
MadisonNWW-2016-00517-I02 - Stream Bank RestorationNWP 13Ray PetersonSnake River01/04/17
MadisonNWW-2017-173-I02 - US-20 Frontage Road West Side South ProjectNWP 14Madison CountyBannock Jim Slough08/25/17
OneidaNWW-2017-460-B02 - Highway 37 ReconstructionNWP 14Oneida CountyRock Creek10/25/17
OwyheeNWW-2016-00062 - Reynolds Creek Box CulvertNWP14USDA Agricultural Research CenterReynolds Creek03/31/16
OwyheeNWW-2014-00446 - Bayha Island Research ProjectIndividualIdaho Power CompanySnake River03/11/16
OwyheeNWW-2016-493-B02 - Snake River BridgeNWP 23Idaho Transportation DepartmentSnake River/C.J. Strike Reservoir04/14/17
OwyheeNWW-2015-39-B02 - Marsing Bridge ProjectNWP 14Idaho Transportation DepartmentSnake River03/05/18
ShoshoneNWW-2014-186-C09 - Burke Bank StabilizationNWP 13Robert BurkeNorth Fork Coeur d'Alene River11/18/16
ShoshoneNWW-2016-276-C09 - Bank StabilizationNWP 13Jack BuellSt. Joe River08/01/16
ShoshoneNWW-2016-355-B02 - Bridge replacementNWP 14Shoshone County Public WorksPine Creek06/02/17
ShoshoneNWW-2017-00313 - Bank StabilizationNWP 13Robert KrugerMiddle Fork St. Maries River07/27/17
ShoshoneNWW-2016-495-B02 - Interstate 90 Kingston Interchange ReconstructionNWP 23Idaho Transportation DepartmentFrench Gulch09/22/17
ShoshoneNWW-2013-00511 - Allen Bank StabilizationNWP 13Tonie AllenNorth Fork Coeur d'Alene River12/15/17
ShoshoneNWW-2006-1200095 - Bank stabilizationNWP 13Edith FergusonSt. Joe River06/26/18
TetonNWW-2015-00543-B02 - Badger Creek Bridge Replacement ProjectNWP 14Idaho Transportation DepartmentBadger Creek01/28/16
TetonNWW-2015-00114-I01 - Road Improvement and Culvert ReplacementNWP 13Teton County Public WorksTeton River08/08/17
Twin FallsNWW-2017-418-B02 - Culvert replacementNWP 23Idaho Transportation DepartmentCoulee Canal or Twin Falls Coulee09/25/17
Twin FallsNWW-2017-629-B02 #13979 - US 30 ProjectNWP 14Idaho Transportation DepartmentCedar Draw12/19/17
Twin FallsNWW-2016-413-B02 - Bridge replacementNWP 16 and 23Idaho Department of Transportation, District 4Salmon Falls Creek02/16/18
ValleyNWW-2015-00264 - Lower Big Creek Bridge ProjectNWP 14Valley County Road and BridgeBig Creek08/03/15
ValleyNWW-1994-202770 - Cabin/Gate House Construction and Road WideningIndividualShore Lodge Whitetail, LLCUnnamed tributary to North Fork Payette River08/23/17
ValleyNWW-2017-00563 - Warren Wagon Road ImprovementNWP 14FHWA-Western Federal Lands Highway DivisionPayette Lake Tributaries12/14/17
WashingtonNWW-2010-00348 - Weiser River Trail, Bank StabilizationNWP 13Friends of the Weiser River TrailWeiser River05/20/16
WashingtonNWW-2017-00612 - Mink Bank StabilizationNWP 13Mink Land and LivestockWeiser River11/28/17

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Staff Contacts

401 Program Coordinator
Loren Moore
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0158

DEQ Guidance

FAQs: 401 Certification Turbidity Monitoring Requirements

Support Document

Sediment Evaluation Framework for the Pacific Northwest (Final July 2016) Projects that involve the dredging of contaminated sediments may be directed to refer to this support document.

Related Pages

Public Comment Opportunities