The URL can be used to link to this page

Home My WebLink AboutHMP - HMP Habitat Managment Plan - 12/15/2004 , DALBY WATERWHEEL RELOCATION PROJECT HABITAT MANAGEMENT PLAN Prepared by THE HOOD CANAL SALMON ENHANCEMENT GROUP PO Box 2169 Belfair,WA 98528 December 2004 RECEIVED DEC 1 5`2004, 426 W; CEDAR STI E-k6- 1.0 EXECUTIVE SUMMARY The relocation of State Route 106 has bypassed the historic Dalby Waterwheel in Union, leaving this valuable historic site inaccessible to the public. Members of the Hood Canal Improvement Club, with the consent and approval of the owner of the Dalby Waterwheel, Marilyn Dalby, have undertaken a project to relocate the waterwheel to a new site on the realigned portion of State Route 106 within the boundaries of the current owner's property. There are four major components of the proposed relocation of the Historic Dalby Waterwheel: 1) Dismantle existing waterwheel and building 2) Construction of building to house new waterwheel 3) Construction of intake pipe to feed waterwheel 4) Restoration of former waterwheel location 2.0 INTRODUCTION This report, together with attached maps and photographs, serves as the Habitat Management Plan (HMP)required by Mason County for the proposed Dalby Waterwheel Relocation Project. The Relocation project will consist of the deconstruction of the waterwheel at the current site and the construction of a new building on vacant land to house the waterwheel at the new State Route 106 crossing. This will include work near the stream channel and diversion of water to power the wheel. The impacts of this project on Dalby Creek are minimal, as no work will take place within the channel and there are existing water rights to power the waterwheel. This HMP provides: (1) a description of the proposed project; and(2) an analysis of effects of the project on existing fish and wildlife species and their habitat. The plan considers effects of erosion control and retention of natural vegetation on the functions and values of the Fish and Wildlife Habitat Conservation Act(FWHCA). The Dalby Waterwheel Relocation project was designed in consultation with Hood Canal Salmon Enhancement Group (HCSEG). 3.0 PROJECT DESCRIPTION 3.1 Description of Existing Property The project property is owned by Marlyn Dalby (see Figure 1). The relocation will take place from one location to another approximately 200' south on a 2 ac. piece of property (legal description: SUNNY BEACH TR 3 TAX 892-D TR D-1, D-2, SURVEY 5/79). The existing building that houses the Dalby Waterwheel is a 12' by 15' log sided structure. The water is taken in through a 4"pipe that leads to a wooden trestle that empties into the waterwheel, which is currently not in operation. The building is located in a stand of second growth forest near the former SR 106 (now Waterwheel Pl.)between f it and the relocated SR 106. The wood from this building will be salvaged during demolition and used in the construction of the replicate waterwheel to retain the historic look of the old waterwheel cabin. 3.2 Description of Proposed Project The relocation will require the removal and salvage of the old waterwheel and cabin to be placed at the new location on the south side of the realigned SR 106, on the left bank (looking downstream) of Dalby Creek(see Figure 2). The rebuilt waterwheel cabin will be built on land that was recently disturbed by the realignment of SR 106. A 4"intake pipe will be used to transport the water from upstream (see Figure 3). The water rights are already in existence from the past use of the waterwheel,and the usage will remain the same. The former waterwheel location will be revegetated with native plants (sword fern Polystichum munitum, Oregon grape Mahonia nervosa,etc.)to return the area to natural condition and reduce the time of potential erosion. 4.0 Effects of Proposed Dalby Waterwheel Relocation on Fish and Wildlife Species and Their Habitats 4.1 Dalby Creek Riparian Habitat Dalby Creek is a spring fed stream system located approximately 15 miles west of Belfair and crossing underneath SR106 approximately 400 feet west of Alderbrook Resort before emptying into Hood Canal. The riparian zone above SR 106 is dominated by an over- story of mature Douglas Fir(Pseudotsuga menziesii), Hemlock(Tsuga heterophylla), Big Leaf Maple (Acer macrophyllum), and Western Red Cedar(Thuja plicata) with an under- story of Willow(Salix spp.), Vine Maple (Acer circinatum), and Red Alder(Alnus rubra). Like nearby Alderbrook Creek, this section is well shaded with over 85% canopy cover. Despite a moderate level of channel confinement,the habitat in this section still seems representative of natural conditions. There is a lower pool to riffle ratio than what would occur naturally, however, due to a lack of LWD. North of existing SR 106, the riparian zone is primarily residential with very little native successional vegetation. There were no fish identified in Dalby Creek. The habitat, however, is similar to Alderbrook Creek where cutthroat trout(Oncorhynchus clarki)were found, so it is likely that this species also occurs in Dalby Creek. Fall chum are documented to be present in this watershed. Aquatic insects identified in the stream are stoneflies (Plecoptera), caddisflies (Tricoptera), and mayflies (Ephemeroptera). These orders of aquatic insects are known to be pollution intolerant and indicate high water quality well within the tolerance range of priority species such as coho salmon(Oncorhynchus kisutch), chum salmon(Oncorhynchus keta), and steelhead(Oncorhynchus mykiss). t i 9000 CAAAL �, PR�POSEO �ELOCQ i cord ArPROY. suUE LIME I OALRY UA-tef JQ CCL U�4(o�t?-c WA i�i C-L 3ID.2S3-50-00 Do6 \ FDG 4uf I G E ` Fp Vu 2(O` _ to MR U"E pRSErtV,AT ot4 /12fA �6, �4. ♦ Cie ttrtuG FF..�IGG"� ♦ ` 6lTC IN Ou'T LArr \ Qeatn Brea _ $, a WATM MECL A"O MpacA autL01KCr �DiU11Y CREEK � PRnP�SEO &(TE DALRk Qafcic Fi6ueE 1 2 R��. 3 I Pc PF tU Pow dT j NALCCS 1 , I � I I I i t + � J J 4" RtPf om I R,OUTL TU 3E b C—P 2 j � CI+tJED , x t i � I 1 1 � j I iJ�iL6'� CREEtt � � � aaL6Y ✓ G3ATC2 HEEL 1 4.2 Avoidance of Riparian Construction Impacts During construction of the new Dalby Waterwheel and the installation of the intake pipe upstream of the new Dalby Waterwheel there is the potential for erosion to cut banks and associated sedimentation build up in stream beds. Erosion control measures as outlined in the WDFW HPA will be strictly adhered to as to timing of construction and to erosion control measures. 4.2 Terrestrial Habitat Evidence of Pileated Woodpecker was observed during the site inspection. The expected short duration of the intake pipe installation minimizes any impacts on Pileated Woodpeckers. There was no direct evidence of Bald Eagle or Great Blue Heron regularly using this tract of land,although these species are known to frequent this habitat type in the Hood Canal area. There are no documented eagle nests within a one-mile radius of the Alderbrook property according to the WDFW database of nesting sites (Boad and Hannafious 2002). 5.0 Mitigation Measures 5.1 Preservation of Critically Important Plants and LWD All native vegetation outside the building zone will be protected to the maximum extent. 5.2 Seasonal Consideration of Construction Activities Wintering bald eagle may be present between October 31, and March 31. It is recommended that any high noise level construction be minimized during these dates. 5.3 Recommended Best Management Practices Recommended Best Management Practices for this project are as follows: • Perform work during dry weather • Install silt fencing between the construction zone and the stream channel to prevent erosion and siltation of Dalby Creek. • Minimize amount of erodible soils at any given time to the maximum extent feasible. • Check any equipment daily for leaks. Refueling and lubrication of equipment should occur off site. No fuel, lubricants, chemicals, or hazardous substances should be stored outside within the project area. • Do not apply any chemicals when there is a possibility of rain. • Comply with all permits and requirements of the government authority or agency. 6.0 SUMMARY All construction activities presented in this Habitat Management Plan will be guided by requirements set forth in the Hydraulic Project Approval permit by Washington State Department of Fish and Wildlife and other permits issued by Mason County as to timing of construction and other measures to minimize impacts to existing fish and wildlife species and their habitat. The relocation of the Dalby Waterwheel will place this valuable piece of Hood Canal settlement history back into a location where it can be viewed by the public. Tammi Clark - Dalby reve .doc Page 1 Dalby Waterwheel Relocation Project Re-vegetation Plan In order to return current location of the Dalby Waterwheel to natural conditions after the removal of the waterwheel the area should be re-vegetated according to the surrounding species composition and densities. The area to be re-vegetated is 8m by 10m bordering Waterwheel Place(see figure). The demolition activities will be restricted to within 2m of the footprint of the structure. A vegetation survey was completed to determine the surrounding vegetation densities for replanting. The most prevalent species in the area is the invasive English Ivy (Hedera helix),covering over 30%of the ground cover. Sword Fern(Polystichum munitum)was the most dominant native species with a ground cover of 20%. To reach this density in the plot requires the planting of at least 18 mature Sword Ferns. Oregon Grape(Mahonia nervosa)was the only other plant appearing in the vegetation survey warranting planting. At least 2 Oregon Grape should be planted in the re-vegetation zone. An additional survey of trees was conducted and 2 Western Red Cedar(Thuja plicata),2 Red Alder(Alnus ruhra),and 1 Big Leaf Maple(Acer macrophyllum)should be planted to match the surrounding densities. All three of these trees are found to be most successful planted as seedlings from containers. E-i C 11 lark - Dalb veq ma Page 1 r An example of planting Schemes cI 03 Dalby Creek 8m > Site of existing waterwheel to be 1 om replanted Waterwheel Place Big Leaf Maple (highway 106 before re-alignment) Sword Fern + Oregon Grape 0 Western Red Cedar Red Alder Drawing not to scale Page 1 of 1 r Tammi Clark - Planting scheme for New Dalby Waterwheel site From: "Matt Korb" <mkorb@hctc.com> To: <tammic@co.mason.wa.us> Date: 4/4/2005 10:41:29 AM Subject: Planting scheme for New Dalby Waterwheel site Good Morning Tammi, I Valerie Johnson has requested that I describe the planned planting scheme of the Dalby Waterwheel to you via a quick email message. The Hood Canal Improvement Club plans on replanting and maintaining native vegetation in the areas disturbed by the relocation of the waterwheel as well as the areas surrounding the waterwheel that were recently disturbed by the relocation of State Route 106. This is to include one large coniferous tree near the waterwheel, as well as a cedar and fir mix of seedlings behind and adjacent to the new site. There will also be Sword Fern and Oregon Grape planted in these areas to establish native plants in the area and to minimize erosion and encourage quick bank re-stabilization. There are several members of the Hood Canal Improvement club that are involved in this project that live in close proximity to the site that have volunteered to perform maintenance associated with these plantings. If more information is necessary please let me and/or Valerie Johnson know, Thank you for your time, Matthew Korb Nearshore Specialist Hood Canal Salmon Enhancement Group (360) 275-3575 mkorb@hctc.com file://C:\Documents and Settings\Tammic\Local Settings\Temp\GW}00001.HTM 4/4/2005