Riverbank Stabilization Inventory

Riverbank Stabilization Inventory FINAL Prepared by: Shallan Dawson, Rebecca Stevens Bob Flagor, & Michael Schlepp Kootenai-Shoshone Soil and Water Conservation District 7830 Meadowlark Way, Ste. C-1 Coeur d'alene ID 83815 June 2004

The Kootenai-Shoshone Soil and Water Conservation District was contracted to compile an Inventory Report of all riverbank stabilization projects that have been installed on the lower St. Joe River and the Lower Coeur D Alene River. The first part of the inventory involved researching projects that have been installed. The second part of the inventory was to survey the projects that are currently visible from the river. This would have included the GPS point of the project, and a visual inventory, documenting the existing material and a photograph. The third part of this inventory was to include a qualitative analysis performed by the State of Idaho, The Coeur d'alene Tribe and a representative of the Federal Government. The survey, GPS, photographs, and Qualitative Analysis for the Coeur D Alene River was completed in March 2004 for this report. The survey, GPS, photographs, and Qualitative Analysis for the St. Joe River were not completed due to river level elevations submerging portions of the stream bank protection projects. The following report is the first part of the inventory for the St. Joe River, which includes a compilation of all projects that were permitted by the Idaho Department of Lands, the US Army Corps. Of Engineers and the Coeur d'alene Tribe. Other information on projects was obtained from MFG, and Idaho Department of Environmental Quality. For ease of reading this report is sectioned into two parts, the Lower St. Joe and the Lower Coeur d'alene Rivers. For the St. Joe River, any designs that are similar were briefly described, and permit numbers are listed with a representative drawing on the following page. If the design was unique the permit number is listed in the description and the design drawing follows. For the Coeur D Alene River, projects that were permitted are listed by the project name, date installed, cost of project (if available), GPS coordinates, picture, and which design was used. Any other information is attached in the following pages (i.e. monitoring information or additional photos). All information provided in this report has been obtained from public records, or with permission from the landowner or entity that paid for the work. Also included were those un-permitted sites that were identified during the QAT site evaluation tour on March 18, 2004. 2

Lower St. Joe River from St. Joe city to Coeur D Alene Lake A majority of the projects on the St. Joe River consist of rock placed in the high water zone. Of 31miles of river, or 327,360 feet, a total of 39,864.5 feet have been stabilized, or 12% of the total riverbanks. The bullets below provide a brief description of the projects that were implemented on large amounts of riverbanks, or had a unique design. Angular rock, placed on top of filter fabric was toed in at elevation 2121. The rock was placed continuously up the bank, above the high water mark. This method was installed on 3874.5 feet of riverbank. This design, installed on 1852 feet, uses angular rock above and below the high water mark. A filter fabric was installed under the rock. There was no vegetative component to this design. Gabion baskets were placed at high water mark for 410 feet of riverbank. Angular rock 6-8 was placed on the eroding bank, on top of filter fabric anchored to the top of the bank 12-18 deep. Small rock, one foot in diameter and smaller, placed in the high water zone, on top of a filter fabric was placed on 550 feet of riverbank. Angular rock was placed on 1805 feet of riverbank. There was no filter fabric, or vegetative component. Angular rock placed in the high water zone is covered by filter fabric, and placed in the toe trench, covered by angular rock and pea gravel. This is topped by sand above the high water mark. This is installed on 690 feet of riverbank. Angular rock 1-4 was placed on the riverbank 24 deep, and toed in on top of filter fabric. This was installed on 6,900 feet of riverbank. Of that, 6,500 were placed continuously. On 350 feet or riverbank rock was placed on top of filter fabric in the high water zone. Under the toe trench, a footing was installed. Filter fabric was placed on the riverbank, from the low water mark to above the high water mark. Angular rock was placed on the filter fabric, and pea gravel covered the angular rock. This was installed on 218 feet of riverbank. 3

Cinder blocks were placed for 50 feet of riverbank, at high water mark. They were placed with the holes up, and willow chutes were planted in the holes. Angular rock was placed from the bottom of the river, to several feet above the high water mark to protect the dike. This was placed on 12,200 feet of continuous riverbank. Angular rock 8 or smaller was placed in a wedge in the wave action zone, or high water mark. Willows were planted into the bank, behind the rock, and cottonwoods were placed 10 back from the riverbank. This was installed on 8,600 feet of riverbank. Drainage: Lower St. Joe River Design: This method places angular rock above and below the high water mark (elevation 2128 ). A filter cloth is placed under the rock, and the slope of the bank is usually kept at 1.5:1. The rock is angular and the designs do not specify the size of rock used. There is no vegetation used in this design. This method uses installation from land. Permit Numbers and length of stabilization: Permit # Legnth in feet L-95-S-3738 240 L-95-S-4381 180 L-95-S-4385 235 L-95-S-4276 360 L-95-S-4372 120 L-95-S-4371 240 L-95-S-4370 239 L-95-S-4357 238 Total 1852 4

Drainage: Lower St. Joe River Design: Angular rock is placed above and below the high water mark (elevation 2128 ), with filter fabric placed under the rock. This design places a toe trench at the bottom of the rock placement. The toe trench can be 2 x2, or 2 x3, and always placed at elevation 2121, the low water mark. This method is installed from land. Permit numbers and length of stabilization: Permit # Legnth in feet L-95-S-3982 485 L-95-S-3937 50 L-95-S-4647 200 L-95-S-4037 114.5 L-95-S-4065 115 L-95-S-4063 300 L-95-S-3998 110 L-95-S-3987 65 L-95-S-4113 165 L-95-S-4168 120 L-95-S-4285 2000 L-95-S-3477 150 Total 3874.5 6

Drainage: Lower St. Joe Design: Gabion baskets keyed in at high water level. The design does not specify the size of the baskets, or the size of rock in the baskets. There is not vegetative component for this design. Permit number and length of stabilization Permit # Legnth in feet L-95-S-4010 80 L-95-S-3227 100 L-95-S-3222 230 Total 410 8

Drainage: Lower St. Joe Design: Rock, one foot in diameter and smaller, is placed against the bank to the high water mark (elevation 2128 ). The design has 4 oz filter fabric under the rock. There is no vegetative component to this design, and this was placed from land. Permit # Legnth in feet L-95-S-3136A 350 L-95-S-4032 200 Total 550 10

Drainage: Lower St. Joe Design: Angular rock 6-8 is filled into the eroding bank. The rock is placed on the top of the bank, slightly higher than high water mark (elevation 2128 ). Filter fabric is below the rock, and anchored on shore by burial 12-18 deep at the end of the rock. Permit # Legnth in feet L-95-S-4093 115 L-95-S-3594 122 L-95-S-3563 105 L-95-S-3593 120 L-95-S-3621 100 L-95-S-3650 105 L-95-S-3668 115 L-95-S-3674 115 Total 897 11

Drainage: Lower St. Joe Design: This design simply has angular rock placed above and below the high water mark. There is no vegetative component, or description of rock type used. Permit # Legnth in feet L-95-S-3210 350 L-95-S-3718 115 L-95-S-3159 200 L-95-S-3405 115 L-95-S-3354 500 L-95-S-4587 375 L-95-S-3873 100 L-95-S-4447 50 Total 1805 13

Drainage: Lower St. Joe Design: Permit # L-95-S-3478 uses filter fabric against the eroding bank, with gravel placed on top of the fabric. Larger rock is placed on top of the gravel. This method was implemented along 500 feet of riverbank. 15

Drainage: Lower St. Joe Design: Permit # L-95-S-3358 uses filter fabric against the eroding bank. Large boulders are placed in the high water mark. Smaller rock with bentnite mixed in will be placed behind and around the large boulders. Four inches of bentnite will be placed on top of the small rock. This method was implemented along 178 feet of riverbank. 16

Drainage: Lower St. Joe Design: This design uses pea gravel against the eroding bank. A toe trench is installed at the low water mark, and filter fabric is placed at the bottom of the trench, covers the pea gravel, and is anchored by the top of the bank. Angular rock is placed in the toe trench, covering the filter fabric to the top of the bank. Sand is placed on top of the angular rock, from the high water mark to the top of the bank. This method was implemented along 115 feet of riverbank. Permit # Legnth in feet L-95-S-3855 115 L-95-S-4100 120 L-95-S-4089 240 L-95-S-3934 110 L-95-S-3941 unknown L-95-S-3958 105 Total 690 17

Drainage: Lower St. Joe Design: This design uses rock 1.5 or larger above and below the high water mark, and into a toe trench. Rock 10-12 is placed on top of the smaller rock. This method was implemented along 105 feet of riverbank. Permit # L-95-S-3123 105 L-95-S-3901 120 L-95-S-3907 120 Total 345 Legnth in feet 19

Drainage: Lower St. Joe Design: Permit # L-95-S-3758 used 1-4 rock, 24 deep to armor the riverbank. The rock was placed on top of filter fabric, and set at a 2:1 slope. The rock was toed in 2-3 deep and a drainpipe was installed to carry runoff from the bank directly into the river. This was installed by DAW Forest Products Co., and includes a paved log deck on top of the riverbank. This design was implemented along 400 feet of riverbank. Permit # L-95-S-3879 used a similar design on 6,500 feet of riverbank. The difference between the two designs was the drainpipe installed at the log deck, was not installed on this portion. 20

Drainage: Lower St. Joe Design: Permit # L-95-S-3962B used rock 12-24 placed on the riverbank starting at the low water mark, and continuing up the bank to the top of the Dike to elevation 2137. This design was implemented on 100 feet of riverbank. 22

Drainage: Lowe St. Joe Design: Permit # L-95-S-3461 used the existing toe trench to install a footing in the bottom, and placed filter fabric starting at the low water mark continuing up the riverbank. Rock armoring would then be placed on top of the filter fabric. This extended for 350 linear feet on the riverbank. 23

Drainage: Lower St. Joe Design: This method used filter fabric placed from below the low water mark up the riverbank above the high water mark. Large rock was placed on top of the fabric; gravel was placed on top of the larger rock. Permit # Legnth in feet L-95-S-3931 91 L-95-S-4316 127 Total 218 24

Drainage: Lower St. Joe Design: Permit # L-95-S-4458 used 8 x8 x16 cinderblocks, with holes in the middle, placed on the sill of the eroding riverbank at the high water mark elevation 2128. They were placed in one layer with the holes facing upward. Willows were planted in the holes of the blocks. This was implemented along 50 feet of riverbank. 25

Drainage: Lower St. Joe Design: Permit # L-95-S-4337 placed rock from the bottom of the river to several feet above the high water mark. This was installed on 12,200 feet of riverbank. 26

Drainage: Lower St. Joe Design: Permit # L-95-S-3966 used rock 1 and smaller placed in a trench 2 deep, filled up extending above high water mark, and extending 3 into the river. This design was implemented along 345 feet of riverbank. 27

Drainage: Lower St. Joe Design: The United States Department of Agriculture, Natural Resources Conservation Service designed and implemented this method, using partial funding from their Environmental Quality Incentives Program. This design involved armoring the riverbank with rock 8 or smaller, well graded placed in a wedge. Before the rock was placed, willow 28

bundles were placed in the water zone every 20 feet. Various types of trees and shrubs were placed every 20 feet on the riverbank. An electric fence was installed to keep grazing animals from destroying the newly planted shrubs. This was installed on 8,600 feet of riverbank. 29

Lower Coeur d'alene River: Harrison to Cataldo Of the 33 miles of river, or 348,480 feet, 9,552 feet of the riverbank was stabilized, or 2.8%. The following bullets are a brief description of these projects. The following pages will describe the project in detail, and provide a cost, if available. Cataldo Boat Ramp Improvement design installed log revetments for 110 feet of riverbank, and willow waddles on 70 feet of riverbank, both in the wave action zone. This method was installed in 1995. The University of Idaho installed bio logs in the wave action zone, near Cataldo Boat Launch. The bank was sloped back, and covered with metal attenuating growth media, and covered with erosion control netting. Scour protection, at various locations on or near the Union Pacific Railroad Right-of-Way, large rock was placed in the wave action zone; this was installed on 1210 feet of the river. Vegetative Geo-grids were installed just downstream of the Highway 3 bridge. These bundles of coconut fiber were stacked with alders planted between them for 132 feet. This design used geotextile placed on the undercut bank, to the bottom of the river. Rock 12 and smaller, depending on the slope of the riverbank, was placed on the geotextile from a barge. The rock was built up above the high water mark several feet from the bank to protect the shoreline from the effects of boat wakes and to provide permanent bank stabilization without adversely affecting the river flow or fish habitat. The south bank berm was constructed using 4-10 size riprap over a geotextile fabric. The north berm was constructed using 4-12 size riprap overlying a gravel and sand filter. The top of the berm is 2 wide, and these two methods were implemented on 750 of both sides of the river for a total of 1,500 of riverbank. The Kootenai-Shoshone Soil and Water Conservation District installed a demonstration project on 6,000 feet of riverbank, 3,000 each side of the river. This method placed rock in the wave action zone, and included willow plantings and cotton wood plantings. There was an additional 200 feet of rock installed that was cobble, not angular rock. At the Medimont Boat Ramp the feasibility of using rock and hay bales to stabilize the bank was tested. Rock was installed on 330 feet of riverbank. Small bales (100 feet of riverbank) were installed by staking with wooden poles in the wave action zone and large bales (100 feet of riverbank) were installed in a trench in the wave action zone. 31

The Qualitative Analysis Team (QAT) consisted of: Gregg Rayner (Regulatory Project Manager)- United States Army Corps of Engineers (USACE), David Lamb (Wetland Habitat Biologist)- Coeur d Alene Tribe, and David D. Lepard- Department of Water Resources Northern Region. The group was also assisted by: United States Environmental Protection Agency (EPA), 2 staff from the United States Fish and Wildlife Service (USFWS), Idaho Department of Lands (IDL), and 2 staff/ 1 supervisor from the Kootenai Shoshone Soil and Water Conservation District (KSSWCD). The group evaluated all stabilization projects on the Coeur D Alene River from Cataldo Boat Ramp to Harrison Dock Builders on March 18, 2004 with the assistance from U.S. Fish and Wildlife service and the utilization of their boat. The following information documents the permitted projects traveling downstream including; photos, GPS coordinates, KSSWCD observations, and QAT analysis. Interspersed are also projects that were not permitted which were evaluated by the QAT and KSSWCD staff. IDL staff using a digital/gps unit camera took some of the photos. Note: some IDL photos have slightly different GPS coordinates; KSSWCD coordinates were taken from the middle of the river adjacent to project sites. The following is a key for interpretation of the information recorded by the QAT: -Bank= Right or Left side of the river facing downstream -Type= Type of stabilization observed -Length= Length of stabilization observed (ft.) -Height= Height of stabilization observed from ordinary high water (OHW) (ft.) -Canopy/shrub= observed vegetation at project site -Manicured/agricultural/other= observed land use adjacent to project site -To top? = Stabilized to top of bank yes or no -Wave Zone= stabilized at wave zone only -Toe only= stabilized at toe only If cells are blank, QAT members did not analyze project/entity for unknown reason. It is important that the reader understands that the information recorded by the QAT members was on their own and from what they saw and how they as individuals perceived the project. The QAT members requested that they not identify which agency they were representing when filling out the evaluation forms. The following 2 pages are blank templates of the forms that the QAT members and KSSWCD staff filled out. 32

14 March 2004 Qualitative Analysis Team (QAT) INVENTORY OF EXISTING STREAMBANK STABILIZATION PROJECTS WATERBODY: SITE ID: BANK: ( )RIGHT ( )LEFT (Facing downstream) TYPE OF STABILIZATION USED ( )ROCK ( ) ANGULAR SIZE: ( ) COBBLE SIZE: ( ) OTHER (describe): ( ) BULKHEAD ( ) TIMBER/LOG ( ) CONCRETE/BLOCK ( ) OTHER (describe): ( ) VEGETATION ( ) CUTTINGS ( ) CONTAINER PLANTINGS ( ) TRANSPLANTS ( ) GABIONS ( ) ROOT WADS/WOODY DEBRIS ( ) OTHER (describe): ( ) FILTER USED? (i.e. fabric, gravel) DESCRIPTION OF PROJECT BANK LENGTH OF BANK STABILIZED: FEET. HEIGHT OF BANK ABOVE ORDINARY HIGH WATER: ( ) STABILIZED TO TOP OF BANK? ( ) STABILIZED AT WAVE ZONE ONLY? ( ) STABILIZED AT TOE ONLY? ( ) OTHER (describe): CONDITION UP/DOWNSTREAM OF PROJECT (describe): FEET DESCRIPTION OF ADJACENT UPLAND (within 25 feet of top of bank). ( ) NATURAL VEGETATION? ( ) TREE CANOPY PRESENT? ( ) SHRUB LAYER PRESENT"? ( ) MANICURED? (i.e., grass lawn, garden, structures, etc.) ( ) AGRICULTURAL (pasture, cropland, etc.) ( ) OTHER (describe): 33

Name of Project: Cataldo Boat Ramp Improvement Plan site #1 Drainage: Lower Coeur D Alene River Installation Date: Late Summer 1995 Coordinates: Lat: N 47.33118 Long: W 116.21992 Entity Installing: Idaho Department of Environmental Quality, as identified by Coeur d'alene Basin Restoration Project; funded in part by Environmental Protection Agency, and Mine Owners Association. Design: The first part of this method used bundles of willows and bundles of cedar (35 feet for each species), tied together and secured into the wave action zone. The bundles were 8-10 and tied together with plastic bailing twine. This waddling was installed on 70 feet of riverbank. KSSWCD observed: Length of bank currently stabilized 0 ft. Primarily vegetative design consisting of small woody debris< 12. GPS coordinates provided by IDL and photo taken. QAT analysis: QAT 1 2 3 Site ID 1 1 1 Bank L L L Type Timber/log/cuttings Wattles gone/fence posts Length 100 100 Height 2 1-2 Canopy Yes Yes Shrub No No 36

Manicured No No Agriculture No No Other Grasses To Top Yes Yes Wave Zone No No Toe only No No Failed y/n yes Yes Comments Due to failure, Q3 did not analyze Name of Project: Cataldo Boat Ramp Improvement Plan site #1 of 2 Drainage: Lower Coeur D Alene River Installation Date: Late Summer 1995 Coordinates: Lat: 47.55204678 Long: -116.36630240 Entity Installing: Idaho Department of Environmental Quality, as identified by Coeur d'alene Basin Restoration Project; funded in part by Environmental Protection Agency, and Mine Owners Association Design: Log revetments were used in the wave action zone. The logs were selected from the river, as waterlogged logs were the most suitable. The logs were held in place by a cable anchored to land, and large rocks were intermittently placed on top of the log. This method was implemented 70 up stream and 40 downstream of the boat ramp, for a total of 110 of riverbank stabilization KSSWCD observed: Length of bank currently stabilized 0 ft. Design consisted of wattles held in place by logs and cables. GPS coordinates recorded and photo taken. 37

QAT analysis: QAT 1 2 3 Site ID 1 of 2 1of 2 1 of 2 Bank R R R Type Veg. Veg. Veg. Length 50 50 30 Height 3-4 3 2 Canopy No No No Shrub No No No Manicured No No No Agriculture No No No Other Grasses Grasses Grasses To Top Yes No Wave Zone No Yes Toe only No No Failed y/n Yes Yes Comments Posts remain, wattles gone Posts remain, wattles gone Excerpts of the work plan for both designs are as follows: 38

Name of Project: University of Idaho Biologs #2 Drainage: Lower Coeur D Alene River, downstream from Cataldo Date Installed: Unknown, more than 5 years ago Coordinates: Lat: 47.55182147 Long: -116.37263780 Entity installing: University of Idaho Design: Pilings were placed in the river, and biologs were placed at the base of the piling. The biolog was on the riverbank side of the piling. The riverbank was sloped back at either 2:1 or 3:1, and metal attenuating plant growth media was placed on the bank. The media was held in place by erosion control netting that disintegrates over time. KSSWCD staff observed that a combination of vegetation and biologs were used, approximately 15-20 ft. of riverbank was currently stabilized and the biologs appeared to hold sections of sloughing. QAT analysis: QAT 1 2 3 Site ID 2 2 2 Bank L R Type Biologs Cuttings/willows/grasses/pilings Pilings/biologs Length 20 40 20 Height 6-8 44

Canopy Yes Yes Shrub Yes Yes Manicured No No No Agriculture No No No Other Grasses Natural veg./phragmites To Top Yes Yes Wave Zone No No Yes Toe only No No Yes Failed y/n Comments Higher banks vertical and sloughing Yes, small area failed Slope appears 60% covered w/ veg.biologs nearly gone Excerpts of the work plan are as follows: 45

Name of Project: Union Pacific Rail Road White Rock Scour Protection #3 Drainage: Lower Coeur D Alene River, various locations on, or near, the UPRR Right-of-Way Date Installed: Late Summer 2002 Coordinates: Lat: 47.53614128 Long:-116.39014720 Cost of Project: $109/ft 46

Entity Installing: UPRR/EPA Design: Large white rocks were placed in the river during summer pool and the bank was then shaped using the rock. KSSWCD observed that this was a rotational slip failure that had been repaired, and 100 mm angular boulder was placed on the bank. No vegetation aspects included. GPS coordinates and photo were taken. 47

QAT analysis: QAT 1 2 3 Site ID 3 3 3 Bank R L Type Rock Rock Rock Length 70 80 100 Height 12-15 15 Canopy Yes Shrub Manicured No No No Agriculture No No No Other UP After trail/ RR Rail/trail trail To Top Yes Yes Wave Zone Toe only Failed y/n Comments grade ½ way to top of bank rock toe and slope covered 48

Name of Project: Rock Berm Pilot Project #4 Drainage: Lower Coeur D Alene River near Dudley Date Installed: Right bank December 1999, left bank Jan./Feb. 1999 Cost: about $100/ft Coordinates: Lat: 47.54267514 Long: -116.42810590 Entity Installing: Silver Valley Natural Resources Trustees Design: This design used geotextile placed on the undercut bank, to the bottom of the river. Rock 12 and smaller, depending on the slope of the riverbank, was placed on the geotextile from a barge. The rock was built up above the high water mark several feet from the bank to protect the shoreline from the effects of boat wakes and to provide permanent bank stabilization without adversely affecting the river flow or fish habitat. The south bank berm was constructed using 4-10 size riprap over a geotextile fabric. The north berm was constructed using 4-12 size riprap overlying a gravel and sand filter. The tops of the berms are 2 wide, and these 2 methods were implemented on 750 of both sides of the river. Silver Valley Natural Resources Trust (SVNRT) funded the project. 51

KSSWCD staff noted that this project was installed on 750 of riverbank on each side of the river using angular boulders. GPS coordinates and photo were taken. * Note* monitoring was done on this site. QAT analysis: QAT 1 2 3 Site ID 4 4 4 Bank Both Both Both Type Rock angular Rock 6-18 angular Rock graded angular Length 750 750 750 Height 8-10 3-4 Canopy Yes Yes Yes Shrub Yes Manicured No No No Agriculture No No No Other Road on N.shore, grasses To Top No No No Wave Zone Yes Yes No Toe only No No No Failed y/n Comments Vertical eroding banks Near vertical bank above rock, eroded The following monitoring reports are from Golder Associates to SVNRT: 52 Rock berm in front of bank, seems to be working

Name of Project: Union Pacific Railroad, Rails to Trails Project #5 Drainage: Lower Coeur D Alene River, downstream from Dudley Berm project. Date Installed: Late Summer 2002 Cost: $109/ sq. ft. Coordinates: Lat: 47.52928555 Long:- 116.44193000 Entity Installed: UPRR/EPA Design: refer to pages 47-48 for White Rock General Engineering design. KSSWCD staff observed approximately 15 of bank stabilized with angular rock. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 5 5 5 Bank L L Type Rock angular Rock 6-24 angular Rock graded angular4 2 at toe Length 75 50 40 Height 6-8 6 Canopy Yes Shrub Yes Manicured No No No Agriculture No No No Other Trail Trail Rails to trails, site stable but no bioelement To Top Yes Yes Wave Zone Toe only Failed y/n Comments Slopes relatively stable New culvert, stabilized above OHW 67 Stable slope with vegetation upstream

Name of Project: Unknown/ Non-permitted #6 Drainage: Lower Coeur D Alene River Date Installed: unknown Coordinates: Lat: 47.53768623 Long: -116.46922950 (@ bottom of reach) Entity Installed: Unknown Design: Unknown KSSWCD staff observed approximately 200 of bank stabilized utilizing boulders about 200mm in size. Native trees were left and GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 6 6 6 Bank L L Type Rock angular Rock angular Rock angular Length 200 300 Height 12-15 Canopy Y Shrub Manicured Yes, grass lawn Yes, grass lawn Agriculture Other House/barn Bank stable, no vegetation included To Top Yes Yes Yes Wave Zone Toe only Failed y/n Comments Sloughing banks upstream Somewhat eroded upstream Unprotected upstream, erosion is evident but minimal. 68

Name of Project: Rose Lake boat launch #7 Drainage: Lower Coeur D Alene River Installation Date: September 2003- Spring 2004 Coordinates: Lat: 47.53779352 Long: -116.47214770 (@ bottom of reach) Entity Installed: U.S. Environmental Protection Agency Design: U.S. Army Corps of Engineers, see attached documents (Geo-grid placement) (Whip placement into Geo-grid) (KSSWCD received these photos on June 7, 2004) 69

(Photos courtesy of Anne Dailey (Environmental Scientist)- U.S. Environmental Protection Agency) KSSWCD staff observed that approximately 200 of bank were stabilized using geo-textile fabric, rock riprap, and vegetation. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 7 7 7 Bank R R R Type Rock angular Rock 6-36 angular Rock angular 6-12, large boulders at toe Length 200 300 300 Height 10-12 6-8 Canopy Yes, partial Shrub Manicured Agriculture Other Small barn, parking lot to be paved. Yes To Top Yes Yes Wave Zone Toe only Failed y/n Comments Mostly vegetated (grass), 1:1 slope Erosion at wave line, upper slope vegetated. 70

Name of Project: Union Pacific Rail Road, Rails to Trails #8 near Hwy 3 overpass Drainage: Lower Coeur D Alene River Date Installed: Late Summer 2002 Coordinates: Lat: 47.52444685 Long: -116.51284760 (@ top of reach) Entity installed: UPRR/EPA Design: refer to pages 47-48 for White Rock General Engineering design. KSSWCD staff observed that approximately 300 of bank was stabilized using angular boulders about 300 mm in size. It also appeared that a few native trees were left, willows were planted behind bank, and no filter fabric was used. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 8 8 8 Bank L L L Type Rock angular Rock angular 24-36 Rock angular graded at toe Length 300-500 200 200 Height 6-8 6 Canopy Yes Shrub Yes Manicured Agriculture Other Natural vegetation Trail< 25 set back Rails to trails, stable site but no vegetation, sterile! To Top Yes Yes Yes Wave Zone Toe only Failed y/n Comments Unstable up and downstream Eroded banks, some vegetation 77 Toe erosion, some sloughing and vegetated

Name of Project: Vegetative Geogrids (Black Rock trail head) #9 Drainage: Lower Coeur d'alene Basin, just downstream of the Highway 3 Bridge Date Installed: Fall 2001 Coordinates: Lat: 47.52364755 Long: -116.51638270 (@ bottom of reach) Entity Installed: EPA/ US Army Corps of Engineers Cost: $700/ft Design: Three different types of geogrids were placed along an excavated riverbank, with quarry spalls installed below the geogrids. Topsoil was placed between the geogrids, and alders were planted in the topsoil. The geogrids were filled with topsoil and structural fill, and compacted. (See May 2004 report on pages 69-70) 78

KSSWCD staff observed that approximately 100 of bank was stabilized utilizing willows and geo-grid as part of the design. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 9 9 9 Bank L L L Type Cuttings and Rock & cuttings Vegetative geo-grid geo-grid terrace &vegetative geo-grid Length 200 120 150 Height 10 7 Canopy Yes Shrub Manicured Agriculture Other Trailhead Parking lot for rails to trails, stable site with shrubs and grasses To Top Yes Yes Yes Wave Zone Toe only Failed y/n Comments Vertical banks Lower portion is eroded Excerpts from the work plan are as follows: 79

Name of Project: Unknown/ Non-permitted #10 Drainage: Lower Coeur d Alene River (South of Black Rock Trail head) Installation Date: Unknown (> 25 years) Coordinates: Lat: 47.53065884 Long: -116.52961680 (@ bottom of reach) Entity Installed: Unknown Design: Unknown KSSWCD staff observed that approximately 100 of bank was stabilized using wood bulkhead and it appeared that the project was anywhere from 20-50 years old. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 10 10 10 Bank R R Type Timber/log Timber/log bulkhead Timber/log bulkhead bulkhead Length 100 100 125 Height 10 8 5 Canopy Yes Shrub A few shrubs Manicured Agriculture Other Road Successful method but no habitat, results in vertical face To Top Yes Yes Yes Wave Zone Toe only 83

Failed y/n Comments Unstable up and downstream Some erosion lower portion, little veg. downstream. Name of Project: Unknown (Sod and shape) Non-permitted #11 Drainage: Lower Coeur D Alene River Installation Date: Unknown (89 ) Coordinates: Lat: 47.51648068 Long: -116.53353280 Entity Installed: Save our River Environment Design: The bank was shaped and fertilized. Kentucky Bluegrass and Red Top sod was placed. KSSWCD staff observed that about 70 of bank was stabilized utilizing sod. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 11 11 11 Bank R R R Type Sod vegetation Sod vegetation Length 70 <100 70 Height 6 Canopy Yes Yes Yes Shrub Manicured Agriculture Other To Top Yes Yes Wave Zone Toe only Good slope, some grass downstream from project 84 Sod vegetation Yes

Failed y/n Comments Yes Name of Project: Willow Planting #12 Drainage: Lower Coeur D Alene River Installation Date: Unknown (90 ) Coordinates: Lat: 47.51478553 Long: -116.54013100 (@ bottom of reach) Entity Installed: Save our River Environment Design: Unknown KSSWCD staff observed approximately 300-400 that had been stabilized at one time utilizing alders, willows, and aspens. There was sign that beaver had fed on the cuttings and that it failed. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 12 12 12 Bank R R R Type Cuttings Willows cuttings Length 300-400 300 300-400 Height 1-5 6 Canopy Shrub No Yes, minimal Manicured Agriculture Other Grasses Phragmites To Top Wave Zone Toe only Yes 85 Yes

Failed y/n Comments Not successful, no survival of cuttings. Yes No evidence left, beavers destroyed. Name of Project: Unknown/ Non-permitted #13 Drainage: Lower Coeur D Alene River Installation Date: Unknown Coordinates: Lat: 47.50652969 Long:- 116.54608550 (@ bottom of reach) Entity Installed: Unknown Design: Unknown KSSWCD staff observed approximately 200 of <10mm gravel/cobble/boulders were along riverbank. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 13 13 13 Bank L L Type Rock angular Rock cobble pit run just Rock cobble, dirt dumped and cobble dumped Length 300-400 200 200 Height 6-8 Canopy Shrub Manicured Agriculture Other Yes Grasses/shrubs/few trees To Top Yes Yes Wave Zone Toe only 86 Seasonal development. Inappropriate material will erode

Failed y/n Comments Vertical sloughing 1:1 slope Name of Project: Kootenai-Shoshone Soil and Water Conservation District Riverbank Stabilization Demonstration Project #14 Location: Lower Coeur D Alene River Date Installed: October 2000 Coordinates: Lat: 47.49982417 Long: -116.56306930 Cost of Project: $21/ft Entity Installed: Design by USDA-NRCS, Installation by: KSSWCD Design: This method, designed by the United State Department of Agriculture, Natural Resources Conservation Service, was implemented on 6000 of riverbank, 3000 on each side. The river makes several turns throughout the project. An additional 200 was installed on the end of the project, and used round rock, or cobble rock. There is an abundant source of this rock in the Coeur d'alene Drainage, and is a cost effective alternative to angular rock. This design had an extensive vegetative plan, which included willow plantings every 10 feet, behind the rock armor, and cottonwood post plantings every 10 feet, set 10 back from the bank. The rock armor design is a wedge design; no existing vegetation, rock or other material was removed to install this project. The Schlepps planted a riparian seed mix and applied fertilizer to the Schlepp Ranch side of the project. Part of this project was installed from a barge on the river, directed by a tugboat; other parts that were accessible by land were installed with a track hoe. TerraGraphics did a wedge removal of 300 before placing rock on the riverbank. The cost for this construction was not paid through the Conservation District, and the additional cost is not known. The wedge removal was done from a barge, as was the rock placement in that area. 87

(This photo was taken on the Schlepp Ranch side in the spring after the first run-off; notice the sediment that settled on top of the cobble) (KSSWCD staff on 4-22-04 took these photos) (Willow survivability) 88

(Right bank Idaho Dept. of Fish and Game) KSSWCD staff observed that 3000 on each side of the River (left bank Schlepp property, right bank Idaho Dept. of Fish and Game property) had been stabilized using willow cuttings, round cobble, and angular rock in some places. Riparian seed was dispersed only on the Schlepp Ranch side. GPS coordinates and photos were taken. QAT analysis: QAT 1 2 3 Site ID 14 14 14 Bank Both Both Both Type Rock angular Rock angular, 6-12 most areas Rock angular 8 or less Length 3000 both 3000 both sides 3000 both sides sides Height 8-10 Canopy Yes Yes Yes Shrub Yes, north side Manicured Agriculture Yes left bank Other Trail south side To Top Wave Zone Yes Yes Yes Toe only Failed y/n Comments Vertical sloughing Eroded partially up & downstream, some trees & grasses 89

The following excerpts are the design of the project. 90

TerraGraphics has done monitoring on this project. The following is from their 2003 report to IDEQ: 97

Name of Project: Kootenai-Shoshone Soil and Water Conservation District Riverbank Stabilization Demonstration Project #15 Drainage: Lower Coeur D Alene River Date Installed: Fall 2000 Cost: part of overall bid ($21/ ft.) Coordinates: Lat: 47.49267340 Long: -116.56939390 (@ bottom of reach) Entity Installed: District Design: refer to pages 82-87 for design details and pages 88-89 for monitoring info. KSSWCD staff observed that over 200 of riverbank was stabilized using round cobble and bundles of 3 willow cuttings every 9 and cottonwood posts placed at top of bank. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 15 15 15 Bank L R L Type Rock cobble Rock cobble & vegetation Length 300 300 300 Height 5 Canopy Shrub Manicured Yes 99 Rock cobble 8 or less & veg. cuttings

Agriculture Yes Other Natural veg. To Top Wave Zone Yes Yes Yes Toe only Failed y/n Comments Severe erosion, some grass/shrubs up & downstream Stable, plant success difficult to judge. Need closer observation. Name of Project: Kootenai-Shoshone Soil and Water Conservation District Riverbank Stabilization Demonstration Project #16 Drainage: Lower Coeur D Alene River Date Installed: Fall 2000 Cost: part of total bid ($21/ft.) Coordinates: Lat: 47.49982417 Long: -116.56306930 (@ bottom of reach) Entity Installed: Terragraphics/DEQ Design: refer to pages 82-87 for design details and pages 88-89 for monitoring notes. 100

(Photo taken 4-22-04 wedge removal by Terragraphics) KSSWCD staff observed approximately 300 of riverbank stabilized using angular boulders a little > 150 mm in size. The slope appeared to be at a 2:1 and 1 thick wedge was removed. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 16 16 16 Bank L R Type Rock angular, vegetative cuttings Rock angular Length 300 300 Height 5 Canopy Shrub Yes Manicured Agricultur e Other To Top Wave Zone Toe only Failed y/n Comment s Yes, cropland Yes, to somewhat above OHW No data collected by QAT 3 Name of Project: UPRR Rails to Trails Project #17 101

Drainage: Lower Coeur D Alene River Date Installed: Late Summer 2002 Coordinates: Lat: 47.48239517 Long: -116.57755860 (@ bottom of reach) Entity Installed: UPRR/ EPA Design: refer to pages 47-48 for White Rock General Engineering design KSSWCD staff observed approximately 100 of angular boulders along the left outside bend of the riverbank. No vegetation in the project that wasn t pre-existing. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 17 17 17 Bank L L L Type Rock angular & veg. cuttings Rock angular 6-30, larger @ toe Rock angular 12-24 Length 100 60 100 Height 6 5 Canopy Yes Partial Yes Shrub Yes Manicured Agriculture Other Trail Rails to Trails, site stable, no good vegetation To Top Yes Yes Yes Wave Zone Toe only Failed y/n Comments Upstream eroded, Upstream eroding @ OHW, 102

downstream rip-rap downstream 25 eroded vertical 4 Name of Project: Medimont Boat Ramp #18 Drainage: Lower Coeur D Alene River Date Installed: January 1994 Coordinates: Lat: 47.47882783 Long: -116.59348010 (@ top of rock treatment reach) Lat: 47.47841477 Long: -116.59455300 (@ bale treatment) Cost: $35/ft Entity Installed: IDEQ Design: The Idaho Department of Environmental Quality contractors as directed by the United States Forest Service implemented this project. The project was sponsored by the Coeur d'alene Restoration, and Save Our River Environment. The United State Environmental Protection Agency, Resource Recovery and Restoration Act funded it. The project was installed on the outside bend of the river, and the total project extended for 330. This design involved removing any existing vegetation, and armoring the riverbank with small rock. Bales of hay, two different sizes were set in a trench. There were two types of rock installation, and two types of hay bale installation. One part of the rock was keyed in, or had a toe trench; the other was placed on the bank. The large round bales of hay were placed in a trench, as were the smaller bales, but the smaller bales were held in place with stakes. (Medimont hay bales) 103

(Medimont rock treatment) KSSWCD staff observed 2 different treatments using 1 gravel-cobble overlying filter fabric and the other utilizing hay bales (viewed remnants) after the bank had been shaped. The small bales were no longer evident and the round bales were rotting. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 18 18 18 Bank L L L Type Rock angular & hay bales in middle & filter fabric Rock angular with bales in center. Bank sloped Rock angular 8 or less. 50 round hay bales, 50 box hay bales. Filter Length 200 400 Height 4-5 Canopy Yes Yes Shrub Yes Manicured Agriculture Other Natural vegetation To Top Yes Yes Yes Wave Zone Yes Toe only Failed y/n Comments Boat launch parking Reaches w/ rock remain stable. Hay bales gone. Vertical erosion 104

The following pages have the design drawing, post-monitoring survey information comparing the river as built and three years after installation, and monitoring information from IDEQ. 105

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Name of Project: Personal Marina w/ Tire treatment/non-permitted #19 Drainage: Lower Coeur D Alene River Installation Date: Unknown Coordinates: Lat: 47.47737944 Entity Installed: Unknown Long: -116.61399370 (@ top of reach) Design: Unknown KSSWCD staff observed that approximately 200-250 of the right bank along a straight away on the river had been covered with Astroturf and old tires. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 19 19 19 Bank R R Type Tires Tires Tires Length 300 200 200 Height 6 6 Canopy Yes Shrub Manicured Yes Yes Agriculture Other Natural vegetation Some portions protected to top of bank To Top Wave Zone Toe only Failed y/n Failing Yes Comments Un-permitted 119

Name of Project: UPPR Rails to Trails #20 Drainage: Lower Coeur D Alene River Installation Date: Late Summer 2002 (blow out in 2002) Coordinates: Lat:47.47852206 Long: -116.68582860 Entity Installed: UPRR/EPA Engineering Design info. Design: refer to pages 47-48 for White Rock General KSSWCD staff observed that approximately 300 of angular boulders were place along the outside bend on the left side. There was no toe trench and it appeared to be built solely for scour protection. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 20 20 20 Bank L L L Type Rock angular & filter fabric Rock angular 6-36, no filter apparent 120 Rock angular, boulder toe, 6-12, filter fabric Length 400 300 300 Height 6 Canopy Shrub Manicured Agriculture Other Trail Rails to Trails, stable bank, no vegetation for habitat To Top Yes Yes Yes Wave Zone Toe only

Failed y/n Comments Older rip-rap up and downstream Previous rock up & downstream Name of Project: UPRR Rails to Trails (near Black Lake access) #21 Drainage: Lower Coeur d Alene River this work was done near Black Lake on a breech in the Right-of-Way along the Coeur d Alene River Installation Date: Late Summer 2002 Coordinates: Lat:47.45850742 Long: -116.65491880 (@ top of reach) Entity Installed: UPRR Design: Refer to pages 47-48 for White Rock General Engineering Design. It was done from a barge, at summer pool elevation, without filter cloth, and apparently without a toe or being keyed in. (photos courtesy of Rogers and Toni Hardy) 121

(During construction) (After construction) KSSWCD staff observed that this had been a RR blowout repair consisting of approximately 30 of angular boulders on the left bank. GPS coordinates and photo taken. QAT analysis: QAT 1 2 3 Site ID 21 21 21 Bank L L L Type Rock angular Rock angular 10-24 Rock angular 12-24, filter fabric Length 50 40 50 Height 6 7 Canopy Shrub Manicured Agriculture Yes 122

Other Trail Stable no vegetative component To Top Yes Yes Wave Zone Toe only Failed y/n Comments Up and downstream vertical banks Upstream 2-3 high vertical erosion at OHW. Downstream undercutting at OHM Name of Project: Thompson Lake Boat Launch ramp #22 Drainage: Lower Coeur D Alene River and Thompson Lake access. Installation Date: Oct. 18-Nov. 24, 1999 Cost: $128,758 Coordinates: Lat:47.48536170 Long: -116.72504790 Entity Installed: EPA/ U.S. Army Corps of Engineers (USACE) Design: Sediments were excavated from the shoreline of the CDA River approximately 10 ft. inland and 5ft. to groundwater. Geotextile fabric was placed against the face of the bank against which 12 riprap was placed throughout the excavation and extending several ft. into the river. Concrete planks were installed from the bank into the river to provide a boat launch ramp. Work started at rebuilding an existing, unpaved parking lot. However, because of inclement weather, the work was completed during 2000. KSSWCD staff observed that angular boulders were placed on each side of the launch (15 each) in order to support the launch. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 22 22 22 Bank R R R 123

Type Rock angular Rock angular 4-18 Rock angular 6-24, filter fabric Length 50 40 20 Height 4-6 Canopy Shrub Manicured Agriculture Other Yes Natural Parking lot for boat launch vegetation To Top Yes Yes Wave Zone Yes Toe only Failed y/n Comments Upstream vertical eroded banks, downstream grass/trees Public boat launch, stable 124

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Neither KSSWCD staff nor the QAT members inventoried this next picture as a project, however due to the historical significance, a photo and GPS coordinates are inserted. (Historical planks in riverbank, left bank) Coordinates: Lat: 47.47909606 Long: -116.73129740 Name of Project: Anderson Lake boat launch #23 Drainage: Lower Coeur D Alene River Installation Date: Oct. 5-Oct. 29, 1999 Coordinates: Lat: 47.46567965 Long: -116.76428320 Cost: $108,531 Entity Installed: EPA/ USACE Design: Sediments were excavated from the shoreline of the CDA River approximately 10 ft. inland and 5ft. to groundwater. Geotextile fabric was placed against the face of the bank against which 12 riprap was placed throughout the excavation and extending several ft. into the river. Concrete planks were installed from the bank into the river to provide a boat launch ramp. An existing, unpaved vehicle parking lot was rebuilt and overlain with asphalt. Access to the parking lot was improved by grading the adjacent unpaved roadway 126

KSSWCD observed that angular gravel and cobble were placed on 125 of riverbank as potential armor for the launch. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 23 23 23 Bank R R R Type Rock angular Rock angular 6-18 Rock angular 12 or less Length 150 120 200 Height 4-5 4 Canopy Shrub Manicured Agriculture Other Yes, for parking lot Natural veg. To Top Yes Yes Wave Zone Yes Toe only Failed y/n Comments Mostly vegetated upstream, downstream grass/shrubs Parking lot, site is stable, no habitat provided Upstream undercutting at OHW, downstream the same 127

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Name of Project: No Name/ Harrison Dock Builders #24 Drainage: Lower Coeur D Alene River before reaching Lake CDA Installation Date: Unknown; No project was ever done, rock is overflow from when road was built Keith Shannon- Harrison Dock Builders. Coordinates: Lat: 47.46514857 Long: -116.76608570 Entity Installed: None KSSWCD staff observed that approximately 30 angular cobble and large woody (old logs) had been placed along the riverbank to the east of the loading zone. GPS coordinates and photo were taken. QAT analysis: QAT 1 2 3 Site ID 24 24 24 Bank R Type Rock angular Rock angular 6-18 Length 150 60 Height 2 4-5 Canopy Yes Shrub Yes Manicured Yes for driveway Agriculture Other To Top Yes, above OHW Wave Zone Yes 129

Toe only Failed y/n Comments QAT 3 did not analyze. 130

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In Summary: There were a total of 24 riverbank stabilization projects that were inventoried on the Lower Coeur D Alene River. The later part of this report is intended to provide information regarding permitted (a total of approximately 9,552 ) and non-permitted stabilization projects (a total of approximately 850 ) that have been installed on the Lower Coeur D Alene River. It was the intention to provide the Technical Leadership Group, of the Basin Environmental Improvement Project Commission, with State, Federal, and Tribal feedback on each project. The QAT data is for you the reader to extrapolate from and see just how different individuals perceive each project. As I was working with the data, I noticed that not all of the agencies agreed on the treatments/lengths of bank stabilized/ what side of the river was stabilized/ and whether they felt that the project had failed or not. Acknowledgements: The Kootenai-Shoshone Soil and Water Conservation District would like to foremost acknowledge the Coeur d Alene Basin Environmental Improvement Project Commission for their support in the process of putting together this report. The District would also like to thank the Core staff of the Commission for their assistance in the peer review period for finalizing the draft. Further acknowledgements are as follows: U.S. Fish and Wildlife Service, The Coeur d Alene Tribe, Idaho Department of Water Resources, Idaho Department of Lands, U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, Idaho Department of Environmental Quality, and the USDA- Natural Resources Conservation Service. Although not requested, KSSWCD asked that the Core Staff to the Basin Environmental Improvement Project Commission conduct a Peer Review of this report before the District distributes a final version (handed out in CD format on June 17, 2004) References: -Riverbank Stabilization Inventory Draft. April 2003. KSSWCD. Shallan Dawson & Mike Schlepp. -Interim Report For the Time Critical Removal Actions Conducted During 1999 in Kootenai and Shoshone Counties. May 2000. U.S. Army Corps of Engineers, Bunker Hill Resident Office and Morrison Knudsen Corp. Personal references: -Mike Schlepp- Landowner/ KSSWCD Supervisor; Mark Addy- NRCS District Conservationist; Anne Dailey- US EPA; Geoff Harvey- IDEQ; Erl Liverman- US EPA; Keith Shannon- Harrison Dock Builders Respectfully submitted by: Rebecca Stevens- District Administrator KSSWCD 132