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SANDY RIVER PARK Master Plan

City of Sandy, July 2011

‘GATEWAY TO MT. HOOD’

Sandy River Park Master Plan 1

‘GATEWAY TO MT. HOOD’

1515 SE Water Avenue, Suite 100 39250 Pioneer Boulevard Portland, Oregon 97214 Sandy, OR 97055 (503) 224-9560 503-668-5569 (phone) www.grpmack.com 503-668-5891 (fax) GM Project Number: 2090278.00 www.cityofsandy.com

2 Sandy River Park Master Plan ACKNOWLEDGEMENTS

CITY OF SANDY TECHNICAL ADVISORY COMMITTEE Nancy Ream Enabnit, Community Services Director Melanie Atkinson, Bornstedt Village Resident Seth Atkinson, Finance Director Byron Ball, Sandy High School Environmental Sciences Tracy Brown, Planning Director Chris Cohen, Sandy High School Student Liz French-Storn, Engineering Technician Jason Dumont, The Nature Conservancy Steve Gillis, Parks Maintenance Kate Holleran, Metro Joe Knapp, Network Administrator Vicky Mills, Sandy Mountain Festival Scott Lazenby, City Administrator Shannon Montgomery, Sandy Mountain Festival Linda Malone, Mayor Russ Plaeger, Sandy River Basin Watershed Council Joe Preston, Parks Superintendent Kathleen Walker, US Forest Service Mike Walker, Public Works Director

CONSULTANT TEAM GROUP MACKENZIE Dan Jenkins, ASLA, LEED AP Jenny Richmond, ASLA, LEED AP Tommy King, ASLA Ralph Henderson, PE, LEED AP Megan Goplin, EIT, LEED AP

JIM SLAGLE RECREATIONAL TRAILS Jim Slagle, Trail Planner

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4 Sandy River Park Master Plan TABLE OF CONTENTS

1.0 INTRODUCTION ...... 7

2.0 SITE BACKGROUND + INVENTORY ...... 9

3.0 PLANNING + DESIGN PROCESS ...... 13 3.1 Technical Advisory Committee + TAC Meeting #1 3.2 Public Workshop #1 3.3 Technical Advisory Committee Meeting #2 3.4 Public Workshop #2 3.5 Technical Advisory Committee Meeting #3 3.6 Final Master Plan

4.0 COST OPINION ...... 27

APPENDIX A: Public Workshop Summaries ...... 30 APPENDIX B: Natural Resource Report by PHS ...... 32 APPENDIX C: 2004 Report of Geotechnical Services for Sandy River Park Entry by GeoDesign ...... 34 APPENDIX D: Animal Species Inventory ...... 40 by Chris Cohen, Sandy River High School

View of Sandy River Park (right of the river) from Jonsrud Viewpoint

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6 Sandy River Park Master Plan 1.0 INTRODUCTION

The Sandy River Park is perhaps the best kept secret in the City’s park inventory. This 124-acre wooded parcel extends from the top of the hillside (level with Bluff Road) on the west, the city limits on the south and down to the Sandy River in the valley. An old logging road descends through the park, providing river access. Except for this feature, the park is formally undeveloped. Trailhead parking is limited to streetside parking along Marcy Street (a short, dead-end residential street east of Bluff Road). The site is located outside the City limits and urban growth boundary (UGB).

For those in the know, this “under-discovered” park provides an easily accessible wilderness experience. Thus, the City Council and Park Board would like to preserve the area as a natural, passive-use park, but would like to begin to develop amenities appropriate for the site with this master plan to help guide efforts and provide a tool for seeking grant funding.

The size, complex history and rich natural resources that make Sandy River Park such a special place, Vicinity Map and Site also necessitated a detailed approach to gaining Aerial Photo courtesy of an understanding of the background, current Google Maps conditions and potential of the site and progressed into a thorough, iterative design process. Regular meetings with the Technical Advisory Committee (TAC) and two major public outreach workshops were key to the success of this project.

City staff, Council and Parks Board members, as well as Sandy citizens all played a significant role in the evolution of the resulting Sandy River Park Master Plan. This document supports the original goals of increasing residents’ awareness of the park and providing amenities that promote appropriate utilization of the park — improved trails, signage, trailhead parking, scenic viewpoints, seating and picnic facilities, improved shoreline conditions with potential for a pullout for kayakers/canoers using the future Sandy River Water Trail and many others detailed in the following sections of this summary.

This report provides an overview of the planning process that resulted in the final, preferred Sandy River Park Master Plan. A summary of the inventory and site analysis is followed by a chronological look at the planning and design process, including the TAC and public workshops. A thorough description of the master plan and its components is included, with the cost opinion, public meeting summaries and other important supporting documents provided as appendices.

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8 Sandy River Park Master Plan 2.0 Site Background + Inventory

Group Mackenzie thoroughly examined the results of previous planning work related to Sandy River Park, the current conditions of the site, and the City of Sandy’s current partnerships or close working relationships with stakeholder groups or individuals contributing to the enhancement and greater good of this special place. Such partners include: • The Nature Conservancy • Metro • Sandy High School Science Department • Sandy River Basin Watershed Council City Comprehensive Plan indicates recommendation for a regional park at • Mt. Hood Community College the Sandy River Park site

2.1 Background Data & Past Planning Efforts The City of Sandy provided a great deal of information to assist with a thorough understanding of both City-wide background and details specific to Sandy River Park. These items included: 1. Parks Master Plan (May 15, 1997) 2. Aerial Photography 3. GIS layers a. Public streets b. Property boundaries c. 5-foot topographical contours d. Water lines The Nature Conservancy restoration mapping at Sandy River Park and surrounding sites e. Sanitary sewer lines f. Paths, trails and sidewalks g. Streams and wetlands 4. Urbanization Report (January 2009) 5. Urban Renewal Plan (December 1998) 6. Comprehensive Land Use Plan and Map (October 20, 1997, last updated December 2008) 7. Locally significant wetlands map (June 21, 2006) 8. Transportation System Plan (December 1995) 9. Sandy River Open Space Field Survey (not dated) 10. Report of Geotechnical Services for Sandy River Park Entrance (March 26, 2004) 1997 Parks Master Plan, existing and proposed facilities mapping indicates recommendation for trails at the Sandy River Park site

Sandy River Park Master Plan 9 2.0 Site Background + Inventory (cont.)

2.2 Existing Conditions 2.3 Site Inventory

The Sandy River Park is a 124-acre wooded parcel located Group Mackenzie completed several site visits to Sandy outside the City limits and urban growth boundary River Park over the course of the project. These visits (UGB). The property extends from the top of the hillside and research into site-specific conditions influenced the level with Bluff Road on the west, the city limits on the direction of planning efforts. The site inventory map and south and down to the Sandy River in the valley on the photographs are included on the next page to assist in north. The site is a virtual ravine with water entering the communicating our findings and observations, which site from all sides, providing year-round streams and were the focus of the first Technical Advisory Committee wetlands, as well as challenging trail alignment decisions. meeting and Public Workshop.

An old logging road descends through the park, providing To gain the most insight possible during site visits, river access. Except for this feature, the park is formally Group Mackenzie was joined by City staff and other undeveloped. Many visitors access the park from the experts to support key observations and reveal hidden Sandy Fish Hatchery to the east, which requires crossing opportunities. The priorities expressed during the Cedar Creek to reach the park. Parking is limited to inventory process include: streetside parking along Marcy Street (a short, dead-end • More inviting entry (signage, trash, utilities masked, residential street east of Bluff Road) and available spaces viewpoint, gate) at the hatchery. • Parking and viewpoint locations Due to the relatively limited means of access to the site, • Washout locations and bank erosion Sandy River Park remains “under-discovered” and what • Trail access points should be an easily accessible wilderness experience is • School district not currently interested in under-utilized. This condition also lends itself to undesired participating uses and visitors, which leads to safety concerns as expressed during the master planning process. • Work collaboratively with the work done on site by The Nature Conservancy to improve quality The Nature Conservancy is currently partnering with the of vegetation (thin out alder, remove invasives, City on a massive natural vegetative species restoration introduce evergreen natives) project. The parcel was previously commercially logged • Access trails created can serve park visitors and the park is currently undergoing a first stage • Lots of water throughout site (creek(s), springs, restoration project with full efforts due for completion in seeps) 2011. The Nature Conservancy is leading efforts to clear out invasive species (largely blackberries and alders) and • Viewpoint at waterfall replant the site with conifers and other natives. The City • Trail is washed out in areas in north portion of the site anticipates maintenance following the restoration will be • Access to river needs close evaluation for best route provided in partnership with community organizations, • Explore connections to downtown — destination for rather than by City staff. Initial clearing of additional user water trail users trails are a side benefit to the project. • Connections to hatchery and other adjacent Additionally, the City previously commissioned a amenities preliminary geotechnical analysis for the top of the slope • Bank stabilization at river to explore trailhead parking options accompanied by • Work with fishing enthusiasts and other conservation preliminary parking studies. groups • Salmon run — interpretive value • Viewpoint coordination

10 Sandy River Park Master Plan 2.0 Site Background + Inventory (cont.)

Inventory + Connections

Sandy River Shoreline

Panorama from West to East

Existing Trail

Existing Park Entry

Site Inventory + Context

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12 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS

The planning and design process took place over the Using the past planning efforts as a starting point, TAC course of six months and included a series of three Meeting #1 presented attendees with the Site Analysis, Technical Advisory Committee (TAC) meetings, two public possible objectives of the project, and amenities to workshops and progress meetings between the City and prioritize to assist Group Mackenzie with developing a Group Mackenzie. Refer to Appendix A for summaries of draft trail alignment as our next step. Public Workshop #1 and #2.

The following is a chronological account of these 3 . 2 P u b l i c W o r k s h o p # 1 milestones and the feedback that helped shape the At Public Workshop #1, a more thorough site analysis process and resulting Sandy River Park Master Plan. was reviewed, goals specific to the park were discussed, preliminary trail alignment recommendations were 3.1 Technical Advisory Committee presented and trailhead / parking concept plans were & TAC Meeting #1 reviewed. The goals and program elements discussed included: Participants in the TAC were invited to be part of this group based on their relevant expertise, involvement with 1) Entry related work and anticipation that they would actively a. Improve Appearance & Function contribute to the committee. b. Apply New Signage Design Standards c. Connect to Downtown Sandy and High School d. Include On-Site Parking 2) Vegetation a. Coordinate with The Nature Conservancy’s Work b. Improve River and Creek Bank Conditions c. Address Erosion and Wash-out Areas 3) Trails a. Connect to Off-Site Opportunities b. Recommend Locations, Amount and Hierarchy c. Address Impact of Water d. Take Advantage of Views and Unique Features e. Support and Promote River Trail 4) Amenities a. Picnic Facilities b. Seating c. Viewpoints d. Access to Fishing e. Preserve / Restore Habitat 5) Interpretive Opportunities a. Natural Resources b. Geologic Features c. Cultural Influences

Sandy River Park Master Plan 1 3 3.0 PLANNING + DESIGN PROCESS (cont.)

Upland Zone River Zone

Entry Wetland Zone

14 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS (cont.)

Resource Zones

Sandy River Park Master Plan 1 5 3.0 PLANNING + DESIGN PROCESS (cont.)

* Developed for a previous entry study effort

16 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS (cont.)

3.3 Technical Advisory Committee • Trail locations will not always bring visitors direct contact with resources recognizing that views into certain habitats Meeting #2 are sufficient; Based on the input received at Public Workshop #1, Group • Dogs must be leashed at all times; and Mackenzie helped to facilitate a discussion during TAC #2 • No motorized vehicles will be permitted with the exception focused on how to achieve balance within Sandy River of safety and scheduled park maintenance. Park, so that natural resources and appropriate recreation Additionally, regional trail expert Jim Slagle, was added activity can co-exist within the boundaries of the park. to the consultant team to assist with trail alignment, Conclusions included: type, materials and environmental considerations. These • Trail alignments shall be a minimum of 100-feet from the decisions and conclusions are reflected in the materials edge of any sensitive area wherever possible; that were then created for Public Workshop #2. The email • Trails will not create a complete ring around resources so messages included on this page provide further insight that the open areas will help to maintain habitat value; into the TAC meeting conversation:

From: Kate Holleran [mailto:[email protected]] 5. Follow TNC’s restoration work with maintenance weed control and erosion control. I haven’t read Sent: Tuesday, January 26, 2010 8:59 PM the TNC grant that is being implemented in the natural area right now, but I suspect it doesn’t have To: Jenny Richmond; Scott Lazenby; Linda Malone; Kathleen and Mike; [email protected]; Nancy money for 5-years of maintenance on the replanting that they are doing. In order to not lose those Enabnit; [email protected]; [email protected] plantings to weed re-growth, the City must budget a relatively small amount for weed control. I can Subject: Re: Sandy - Public Meeting #1 help you estimate the cost of this treatment. (Can someone send me the grant project plan or the link if it is electronic? I ‘d like to see what the planting plan is and what the plan is for weed control.) At the first technical advisory meeting that I attended and then again at the first community meeting, I advocated for considering the impacts of development activities on wildlife and water quality, especially For the real science geeks in the group, below are some references for the science regarding dogs, in the Sandy River natural area. This email is to provide some science behind my input. trails and wildlife. I can provide more if you are interested. How can we make this wonderful public resource available to our community while protecting as many Please feel free to share this email (I didn’t have a list of who was at the technical adv. meeting i of its natural values as possible? Wise planning of use, conservation and protection of the resources, attended) and I welcome your comments. and education are key. I am so glad that Sandy purchased this property, that the current initial restora- Kate tion work is occurring and that Sandy is being proactive and thoughtful in its development. It may seem like just a chunk of land to some people, but it is a part of the larger Sandy River Watershed and On Thu, Feb 4, 2010 at 12:21 PM, Jason Dumont wrote: inextricable connected to the river that flows along its northern edge. Nancy, Additional trails in the area, with the associated disturbance of wildlife caused by hikers, bikers and in particular dogs will result in reduced wildlife habitat value and water quality if not carefully planned. I think Kate brings some really good points to light in her suggestions. In particular, her concerns Although there will be an inevitable reduction in these functions in any development, it is fairly easy to about impacting the wetlands should be given some thought. I agree that restricting user access reduce the negative impacts of trails and associated development on water quality and wildlife. Here to the wetlands and ensuring that people stay a good distance back from the riparian boundary are some of my recommendations based both on a review of the literature and applied management of the wetland is a good rule of thumb. However, finding good access to the site (other than via experience on many natural areas similar to the Sandy River natural area. I tried to provide some op- the road), is very difficult. Even the road has to cross through or directly adjacent to the wetlands tions from most protective to less protective development. because the wetlands essentially span the site from west to east. In reality, any trail system will need to pass close to the wetlands. This will be a balancing act but I don’t think developing a trail 1. Provide as wide a buffer to water systems as possible. 200 feet is well supported in the scientific network on the site needs to cause great damage to the wetlands. It just needs to be done well literature, but I know that people want to be closer to water-myself included. Wider is better. Perhaps and managed carefully. I think you’re doing the right thing by having Group Mackenzie get experts a wide buffer with small spurs into the wetland system would work. together to finalize a design taking into account many perspectives. 2. If you must put a trail near water, do not encircle the water source. A loop trail leaves no refuge for Regarding dogs…I agree that the best option is keeping dogs out of the park. However, realisti- wildlife using the water and will eventually result in the reduction of the riparian area around the water cally speaking, a policy insisting that dogs be kept on leash is more workable. The more that’s source due to human disturbance (think about the current condition of the natural area along the river, enforced, the better chance the park has of maintaining its natural and wild character. The more think of Trillium Lake, Mirror Lake, the stream in Meinig Park, etc). Every person and every other ani- dogs are running around, the less chance there is that the bears, elk, and other wildlife that mal loves water, so this is no surprise. Once you lose the riparian veg, it is very difficult to restore it in currently inhabit the place will be able to remain. Preserving the wild character of the park, in my accessible areas-increasing the erosion and degradation of habitat and water quality. I suggest using opinion, is critical. a spur trail into just one of the wetland areas-out and back but no loop- to provide access to the water and wildlife viewing (perhaps we could include a viewing blind designed into the trail plan). This would I want to reiterate my perspective of the park: The city has taken a really wonderful step by still leave a loop trail above and below the wetland areas for hikers/bikers. A compromise would be to investing in this park. However, the city’s property is only a small fraction of the natural space. sacrifice the smaller wetland area with a loop trail but leave the other wetland undisturbed. In time, I would like to see the adjacent natural areas brought into public ownership or into conservation ownership in order to ensure that the entire 500+ acres of forested natural area that The current trail design impacts both wetland systems and completely surrounds them with a trail. I buffer both sides of the river are preserved forever. The more the local community sees the park suggest that neither trail be selected until a natural resource survey and assessment is completed that as a resource and takes pride in having that resource, the more likely it will be that there will be quantifies the water and wildlife values of the wetlands. I understand that you have a natural resources support for conserving and managing the park and the surrounding natural areas. Developing and consultant on contract. I think that person might be able to either complete or recommend another bi- encouraging responsible public use is essential to getting local buy-in. I’m really glad that the city ologist to complete such a survey. Your decision to impact these areas should be made with as much is working through a planning process for the park, and look forward to helping the city make the information as possible so you are aware of what you are losing/gaining in any given alternative. most of that resource. 3. No dogs. As far as wildlife and water quality, dogs are not good. Sorry dog lovers. There is Jason Dumont substantial research that shows that dogs on leash or off leash reduce the occurrence of wildlife near Portland Area Preserves Manager trails: birds, deer, etc. That could be good info for using in an interpretive sign explaining why dogs are The Nature Conservancy of Oregon not permitted. In addition, a recent study indicated that animal feces may be a significant non-point (503) 802-8151 pollution sources in watersheds. The Sandy River is an incredibly valuable and stunningly beautiful river and habitat to rare and endangered salmonids. We are its advocates and it needs as much From: Kate Holleran [mailto:[email protected]] protection as we can provide. Wildlife: dogs are natural predators and with the possible exception of Sent: Thursday, February 04, 2010 5:38 PM Paris Hilton’s goofy purse dogs (are those really dogs?), wildlife recognize and respond negatively To: Jason Dumont to dogs. I know of course that this is a tough position to take and if protection of water quality and Cc: Nancy Enabnit; [email protected]; Corey Gargano; Jenny Richmond wildlife habitat are not objectives in the park development it is an even harder sell. But, education Subject: Re: Sandy - Public Meeting #1 can go a long way. I am in full agreement with Jason’s comments about connecting the community to the park and its 4. Alternately: dogs on leash only, enforced. Provide doggie bags at the entrance to the natural area natural features that we want to conserve, if possible, with adjacent lands (just a dream right now!) I for picking up dog s-t. Even people who don’t know or care about water quality and wildlife, do not am so thankful for Sandy’s thoughtful approach to the development and Mackenzie’s open process want to walk in dog poo or be harassed by someones’ pit bull. for input. Thanks for including me in the process. Kate

Sandy River Park Master Plan 1 7 3.0 PLANNING + DESIGN PROCESS (cont.)

3 . 4 P u b l i c W o r k s h o p # 2 the alignments shown are favored, with an additional connection shown to the hatchery crossing Cedar Creek. Much of the input received at the second public workshop focused on the location, functionality and style Additional input included a request for more substantial of the restroom and trail types, especially materials. picnic tables and strong preference to include interpretive/educational signage as soon as possible. Three potential restroom locations were presented — at the Marcy Street trailhead, in the center of the park and as close to the Sandy River as possible. The center of 3.5 Technical Advisory Committee the park was not favored. Preference for the other two Meeting #3 locations was roughly equal. The trailhead provides easy access to utilities and inclusion at the main park entry. The discussion regarding Sandy River Park at TAC #3 led to However, the reality of those fishing using this location resolution of all outstanding topics. The primary restroom are slim and reducing the impact of these park visitors will be built at the trailhead, with temporary facilities at is a priority. Environmental and functional restrictions the hatchery during peak fishing seasons until a second limit the feasibility of a restroom sited close to the restroom can be added at the river. The park property river. Access for maintenance is limited to a motorized across the river will be addressed in a future master plan wheelbarrow or utility vehicle. The environmental benefit update. The trail alignment is logical and addresses the is great enough that a solution is a priority. balance needed between recreation and natural resource protection. Input received regarding trail type reinforced the preference for natural surfacing, with limited use of 3.6 Final Master Plan paving, steps, wood and other hard-surface or heavy- handed options. Those offering input were very clear that Because of the limited changes to the graphics produced they want to feel they are in a natural resource focused for Public Workshop #2 and the final plans, this summary park. Some even prefer removing the term “park” provides the refined and finalized maps and support from the name of the site. Comments confirmed that graphics beginning on page 19 of this booklet.

Above: Public Workshop #2 Sandy River Park Project Station

Right: Site Section and Enlargements of Key Park Amenities (produced for final master plan documents)

18 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS (cont.)

Proposed Trail Alignment

Sandy River Park Master Plan 1 9 3.0 PLANNING + DESIGN PROCESS (cont.)

Trail Type 1 (Upland Zone)

The alignment in this section of trail remains relatively unchanged from the existing former logging road location and new access trail built by The Nature Conservancy. We recommend meandering the straight logging road section as shown in Alternate 1. • Width: 10 feet at emergency/maintenance route, 5 feet all other sections • Surfacing: 1/4” minus compacted gravel (this can achieve accessibility standards, yet will give the feeling of a “nature trail”) • Slope: <8.33% wherever possible, rest stations per accessible trail guidelines can be included in areas that exceed optimal slope

Trail Type 2 (Wetland Zone and River Zone Loop 1)

The new / revised sections of Trail Type 2 will provide a lower maintenance location (positive slope/drainage) and less impact on wetland resources. As is, Alternate 2 sets up a memorable and unexpected viewpoint, but is located in a wet area that will be difficult to maintain over the long term. The recommended route will be easier to maintain and presents the same view as a surprise when hiking north. The existing Alternate 3 alignment traverses a very wet area; the recommended route is a more sustainable location a proper distance from the wetlands. Alternate 4 currently is a tricky slope to navigate and contributes to erosion adjacent to Cedar Creek. The proposed route eliminates this issue and provides a view of a second water fall. • Width: 3.5 to 4 feet • Surfacing: compacted earth • Slope: <12.5% wherever possible, rest stations per accessible trail guidelines can be included in areas that exceed optimal slope

Trail Type 3 (River Zone (except Loop 1) and most future connections)

Once a hiker reaches the Trail Type 3 sections, they are deep into the park and ready for a more challenging adventure. This portion of the trail system traverses the steepest slopes and takes a visitor to some of the most unique areas of the site. All Trail Type 3 alignments are new sections not yet established so no alternates are proposed. • Width: 2.5 to 3 feet • Surfacing: compacted earthen surface • Slope: no limit, but attempt to not exceed 20%

20 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS (cont.)

100-foot Buffer

Sandy River Park Master Plan 2 1 100-foot100-foot BufferBuffer InstallationInstallation PhasesPhases

3.0 PLANNING + DESIGN PROCESS (cont.)

SignageSignage ++ SignageSignage SiteSite FurnishingsFurnishings

EntryEntry Monument Monument DirectionalDirectional Sign Sign MileMile Marker Marker

InformationalInformational Kiosk Kiosk InformationalInformational Sign Sign

SiteSite FurnishingsFurnishings Site Furnishings

SANDYSANDY RIVERRIVER PARKPARK 22 Sandy River Park Master Plan JuneJune 3,3, 20102010 ProposedProposed TrailTrail AlignmentAlignment 3.0 PLANNING + DESIGN PROCESS (cont.)

Signage + Furnishings

Sandy River Park Master Plan 2 3 3.0 PLANNING + DESIGN PROCESS (cont.)

Entry, Parking and Overlook

Until the opportunities for additional connections are available, Marcy Street will be the primary access to Sandy River Park. Limited space is available for parking, with 11 stalls shown. If the restroom shifts to another location, one to two more spaces could be added. The overlook provides views of the park, a clear meeting place, and a spot to rest before or after a long hike. Signage will offer a memorable entry and interpretive

Restroom

A number of restroom building options were considered. CXT Concrete Buildings is the recommended manufacturer based on durability, maintenance requirements, Cascadian design availability and their headquarters location in the Pacific Northwest. • What is the optimal restroom location? (1) Entry at Marcy Street (2) Sandy River (3) Mid-point

Riverbank Restoration

Sandy River Park is an important fishing site enjoyed by many people throughout the seasons. Pressure by both people and natural systems is resulting in an eroded bank that will continue to worsen without intervention. Bioengineering techniques can stabilize the damaged area, however education via signage and volunteers to encourage positive use of the riverbank is equally important. National Marine Fisheries Services and Department of State Lands will require permit to ensure the work complies with the Endangered Species Act and the needs of this valuable salmonid habitat.

24 Sandy River Park Master Plan 3.0 PLANNING + DESIGN PROCESS (cont.)

Installation Phases

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26 Sandy River Park Master Plan 4.0 COST OPINION

Accuracy Exclusions The level of detail and accuracy of pricing in this estimate Items excluded from this estimate include any additional are consistent with the degree of completeness of the soft costs, permitting fees, testing and inspections. documents used for estimating purposes. The document used to prepare this estimate includes the preferred Cost Opinion Objective Master Plan with site base data from GIS and aerial This cost opinion is intended to be used as a tool for photography provided by the City of Sandy. Additional decision making and managing construction costs during information was obtained through discussion with the the next phases of the project. It is prepared using client and industry contacts. industry contacts, experience, and the best judgement of the professional consultants. This estimate is intended Bid Conditions to reflect an amount close to what would be the low bid This project has been estimated as a complete project of the project with respect to the present level of design with separate subtotals for individual portions of work and documentation with consideration given to the for informational purposes only. If the project is bid in current market conditions. The consultant has no control phases, the total estimated cost of the overall project will over market conditions, wage rates, or any contractor’s be higher. method of determining prices or quantities. Therefore, the consultant is relatively certain that there will be Items Affecting the Cost Opinion deviations between this estimate and the actual cost of construction. Items which may change the probable construction costs include, but are not limited to:

• Modifications to the scope of work included in this estimate.

• Restrictive technical specification or excessive contract conditions.

• Any specified item of equipment, material, or product that cannot be obtained from at least three different sources.

Escalation Unit costs included herein are reflective of current costs with no escalation included. A labor and material escalation factor will need to be added once a construction period has been determined.

Sandy River Park Master Plan 2 7 4.0 COST OPINION (cont.) Cost Opinion (Master Plan)

Project Description: Furnish all equipment, materials, and labor necessary to complete the construction of approximately ____ linear feet of trail and associated improvements.

Sandy River Park Master Plan

ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT NOTES

GENERAL 1 Mobilization, Bond, Insurance LS 1 PD $ - roughly 5% of construction 2 Site Prep / Trail Clearing SF PD $ 0.50 $ - strip, clear, prune (not incl. plant salvage) 3 Tree Protection Fencing LF PD $ 3.00 $ - 4 Erosion & Sediment Control Measures LS 1 PD $ - Sub-Total $ -

TRAILS & ASSOCIATED ITEMS Phase 1 5 Trail Type 1 - refine existing, 10' wide LF 1655 $ 15.00 $ 24,825 gravel surface meeting ADA standards 6 Trail Type 1 - refine existing, 5' wide LF 2365 $ 10.00 $ 23,650 gravel surface meeting ADA standards 7 Trail Type 1 - new, 10' wide LF 910 $ 25.00 $ 22,750 gravel surface meeting ADA standards 8 Trail Type 2 LF 3370 $ 12.00 $ 40,440 earth surface, 4 ft. wide 9 Trail Obliteration LF 1340 $ 4.00 $ 5,360 10 Bridge EA 2 $ 10,000.00 $ 20,000 11 Slope Restoration EA 1 $ 4,500.00 $ 4,500 12 Viewpoint Station AL 3 $ 5,500.00 $ 16,500 interpretive sign, bench 13 Bench EA 5 $ 800.00 $ 4,000 14 Picnic Table EA 3 $ 750.00 $ 2,250 by Keystone Building, (541) 633-0041 15 Directional Sign EA 4 $ 400.00 $ 1,600 16 Mileage Marker EA 5 $ 300.00 $ 1,500 17 Interpretive Sign EA 1 $ 4,000.00 $ 4,000 not at a viewpoint

Phase 2 18 Trail Type 2 LF 3120 $ 12.00 $ 37,440 earth surface, 4 ft. wide 19 Trail Obliteration LF 1330 $ 4.00 $ 5,320 20 Bridge EA 1 $ 10,000.00 $ 10,000 21 Viewpoint Station AL 1 $ 5,500.00 $ 5,500 interpretive sign, bench 22 Bench EA 3 $ 800.00 $ 2,400 23 Directional Sign EA 1 $ 400.00 $ 400 24 Mileage Marker EA 3 $ 300.00 $ 900

Phase 3 22 Trail Type 3 LF 2710 $ 12.00 $ 32,520 earth surface, 2.5 - 3 ft wide, challenging 23 Viewpoint Station AL 1 $ 5,500.00 $ 5,500 interpretive sign, bench 24 Bench EA 2 $ 800.00 $ 1,600 25 Directional Sign EA 1 $ 400.00 $ 400 interpretive sign, bench 26 Mileage Marker EA 2 $ 300.00 $ 600

Phase 4 27 Trail Type 1 LF 0 $ 25.00 $ - gravel surface meeting ADA standards 28 Trail Type 2 LF PD $ 12.00 $ - earth surface, 4 ft. wide - to hatchery, school district 29 Trail Type 3 LF 3585 $ 12.00 $ 43,020 earth surface, 2.5-3 ft wide, challenging - to Jonsrud 30 Bridge EA 1 $ 10,000.00 $ 10,000 31 Viewpoint Station AL 1 $ 5,500.00 $ 5,500 interpretive sign (Pannier frame), bench 32 Signage and Furnishings EA PD PD $ - Sub-Total$ 332,475

28 Sandy River Park Master Plan

Page 1 4.0 COST OPINION (cont.) Cost Opinion (Master Plan)

Project Description: Furnish all equipment, materials, and labor necessary to complete the construction of approximately ____ linear feet of trail and associated improvements.

Sandy River Park Master Plan

ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT NOTES

TRAILHEADGENERAL IMPROVEMENTS 331 Mobilization,Demo & Clearing Bond, Insurance LSAL 1 $ 5,500.00 PD $ 5,500 - roughlyremove 5%+/- 21of constructiontrees, existing improvements 342 SiteErosion Prep Control / Trail Clearing SFAL PD 1 $ 2,500.00 0.50 $ 2,500 - strip, clear, prune (not incl. plant salvage) 353 Tree Protection Fencing LF 325PD $ 3.00 $ 975- 364 ErosionEarthwork & Sediment Control Measures LSAL 1 $ 10,000.00 PD $ 10,000 - excavation, embankment 37 Concrete Paving - 4" thick, pedestrian SF 2150 $ Sub-Total 5.75 $ 12,363 - pervious paving and subbase 38 Asphalt Paving - vehicular SF 6400 $ 5.00 $ 32,000 pervious paving and subbase 39 GravelTRAILS Paving & -ASSOCIATED vehicular ITEMS SF 0 $ 4.00 $ - slopes likely too steep Phase40 1Gravel Paving - pedestrian SF 710 $ 3.25 $ 2,308 wearing course and subbase 415 TrailConcrete Type Curb 1 - refine existing, 10' wide LF 1655 260 $ 15.0012.00 $ 24,825 3,120 gravelextruded surface meeting ADA standards 426 TrailMetal Type Edge 1 - refine existing, 5' wide LF 2365 310 $ 10.00 8.00 $ 23,650 2,480 gravel surface meeting ADA standards 437 TrailRetaining Type Wall1 - new, - high 10' wide LF 910110 $ 125.00 25.00 $ 22,75013,750 gravel surface meeting ADA standards 448 TrailRetaining Type Wall2 - low LF 3370 45 $ 12.0075.00 $ 40,440 3,375 earth surface, 4 ft. wide 459 TrailSanitary Obliteration Line LF 1340 140 $ 60.00 4.00 $ 5,3608,400 4 - 6" line, connections, trenching 1046 BridgeWater Meter with Backflow EA 21 $ 10,000.00 2,400.00 $ 20,000 2,400 1147 SlopeWater RestorationLine EALF 105 1 $ 4,500.00 22.00 $ 4,5002,310 2" line, connections, trenching 1248 ViewpointElectric Improvements Station AL 31 $ 5,500.005,000.00 $ 16,500 5,000 interpretiveservice, 2 safety sign, lightsbench 1349 BenchStorm Facilities EASF 1000 5 $ 800.00 4.00 $ 4,000 soils, plants, overflow 1450 PicnicRestroom Table Building - facility, installationEA AL 31 $ 65,000.00 750.00 $ 65,000 2,250 by KeystoneCXT Building, (541) 633-0041 1551 DirectionalBench Sign EA 4 $ 400.00800.00 $ 1,6003,200 1652 MileageBike Rack Marker EA 53 $ 300.00 $ 1,500 900 1753 InterpretiveBollard Sign EA 18 $ 4,000.00 600.00 $ 4,0004,800 not at a viewpoint 54 Curb Stop EA 8 $ 125.00 $ 1,000 Phase55 2Entry Sign EA 1 $ 5,000.00 $ 5,000 1856 TrailInterpretive Type 2 Sign ALLF 3120 1 $ 5,000.00 12.00 $ 37,440 5,000 earthPannier surface, frame 4 ft. wide 1957 TrailPlantings Obliteration ALLF 1330 1 $ 4,500.00 4.00 $ 5,3204,500 approx. 1500 sf 20 Bridge EA 1 $ 10,000.00Sub-Total$ 199,880 10,000 21 Viewpoint Station AL 1 $ 5,500.00 $ 5,500 interpretive sign, bench 22 BenchRIVER BANK RESTORATION EA 3 $ 800.00 $ 2,400 2358 DirectionalShoreline Improvements Sign - intensiveEA LF 235 1 $ 400.00150.00 $ 35,250 400 includes canoe/kayak pullout as a stop for the Sandy 2459 MileageShoreline Marker Improvements - moderateEA LF 420 3 $ 300.00 75.00 $ 31,500 900 River Water Trail 60 Restoration Away from Shoreline SF 43560 $ 0.50 $ 21,780 approximate area Phase61 3Restroom Building - facility, installation AL 1 $ 36,000.00 $ 36,000 vault, accessible by utility vehicle to be determined 2262 TrailEducational Type 3 Signage ALLF 2710 1 $ 10,000.00 12.00 $ 32,52010,000 earth surface, 2.5 - 3 ft wide, challenging 23 Viewpoint Station AL 1 $ Sub-Total 5,500.00 $ 134,530 5,500 interpretive sign, bench 24 Bench EA 2 $ 800.00 $ 1,600 25 Directional Sign EA 1 $ 400.00 $ 400 interpretive sign, bench Project Cost$ 666,885 not including project-dependent items 26 Mileage Marker EA 2 $ 300.00 $ 600 Contingency (15%)$ 100,033 master plan, capture project- dependent items Phase 4 Overhead & Profit (6%)$ 46,015 contractor 27 Trail Type 1 LF 0 $ 25.00Total$ 812,933 - gravel surface meeting ADA standards 28 Trail Type 2 LF PD $ 12.00 $ - earth surface, 4 ft. wide - to hatchery, school district Notes:29 Trail Type 3 LF 3585 $ 12.00 $ 43,020 earth surface, 2.5-3 ft wide, challenging - to Jonsrud 1. 30“PD”Bridge indicates a project-dependent itemEA requiring 1 the next$ level10,000.00 of design$ development 10,000 to estimate accurately. 31 Viewpoint Station AL 1 $ 5,500.00 $ 5,500 interpretive sign (Pannier frame), bench 2. 32ReferSignage to page and Furnishings 20 for additional detail regardingEA Trail PD Type 1, 2 PDand 3. $ - Sub-Total$ 332,475 3. Plant / habitat restoration work to be completed by The Nature Conservancy is not included in this opinion. 4. Soft costs (permitting, consultant, etc.) are not included in this opinion.

Sandy River Park Master Plan 2 9

Page 1

Page 2 APPENDIX A

Workshop #1 Summary:

Exhibits: goals, location map and existing conditions site User Groups photos, preliminary trail alignment recommendations, • Majority of attendees wanted a pedestrian-focused trailhead concepts park. Level of Improvements • Some attendees were interested in mountain bike • Balancing impacts to the site with preservation (and trail(s). enhancement) of natural resources ranked high for • Accommodating fishing is a high priority. most attendees. • Dogs were a hot topic — highly recommended to • The 3-zone concept with a hierarchy of loop trails was enforce on-leash only. well liked. • Equestrians may / will use the site regardless of what • Install the trails to minimize impact include is formally allowed — plan for this. spurs, not loops, in the wetland zone. • Parking / Vehicles • Take advantage of views and exposure to unique features = big benefit of the site. • If on-site parking goes in, the majority of attendees wanted it to include the maximum • Future connections were very important to some, number of spaces possible. and not a concern to others. • Except for emergency and maintenance • Hatchery and Dodge Park were highest vehicles, the parking right at the entry was priority. the extent of tolerable vehicle traffic on-site. • Not many knew about the opportunity to • Almost 100% consensus for no motorized vehicles on- link into the BLM water trail. site (except for emergencies and maintenance) — no • Many neighbors are concerned about lights and BMX, 3-wheel, 4-wheel recreation. noise. Other • Signage (entry and interpretive) and benches ranked • The name of the park was a hot topic with the high on the priority list with picnicking facilities suggestion that the work “park” be dropped from its (tables, shelters) as a second priority (concern that title to communicate the assumed more nature-based if these come too soon, before use increases, that approach. transient users may not use appropriately). • Most attendees were interested in trail width, surfacing, etc. This will be addressed in the next step of planning.

30 Sandy River Park Master Plan APPENDIX A (cont.)

Workshop #2 Summary: Exhibits: proposed trail alignment, 100-foot buffer map, • Installation Phases signage and furnishings map and examples, main entry • General agreement with Phases 1, 2 and 3. / trailhead concept plan, restroom recommendation, riverbank restoration options, trail type summaries • When would connection to northern most areas (island, etc.) happen? Phase 4+? Large Group Presentation: • Signage and Site Furnishings • Many pros and cons to each restroom location option • Benches and tables should be as beefy as and type (vault, locker, composting, standard). possible. • Is the park limited to one restroom? • Don’t install until enough eyes on the park to • The trailhead is considered the primary meeting deter vandalism. place, entry location and takes advantage of the • Interpretive signage is a priority. viewpoint. • Construction and long-term maintenance becomes • Marcy Street Entry more difficult the farther from the entry / closer to • Will the cars impact the neighbors? There the river. could/will be more cars on Marcy Street, • Why aren’t improvements to the island and farthest but people currently park on the street to north portion of the site shown? use the site. The drop in the grade from the entry point to where the cars are located will • The 3-loop approach to the trail design has stood up buffer some of the view of the cars. to re-design. Specific alignments changed and four alternatives are shown for your consideration. • Bollards and entry signs acting as a gate were seen as positive features. Small Group Comments: • Benches at the overlook were well liked. • Overall Site Plan • Restroom • Show a connection to the hatchery with a • Preference for a single stall, small building. bridge over Cedar Creek. • One vote for each location (Marcy Street • Positive general feedback. Entry or Sandy River or Mid-Point). • Alternate Routes 1 – 4 • Isn’t there a lower tech, simple option that is • No opposition to installing the alternate cost effective enough that a restroom can be routes. Everyone seemed to be in favor installed at multiple locations? Why not an of routes that provide a more sustainable old-fashioned outhouse? / lower maintenance location (out of wet • Work with the hatchery — collaborate on areas, on slopes, fewer bridges required). temporary facilities during fishing season. • Trail Types • Removable vault facility above the floodplain • Keep Trail Type 2 and 3 as “natural” looking serviced by a motorized wheelbarrow as possible — no steps. Safety is important. and access through the hatchery was Don’t use wood that will have contact with recommended. the ground. • Riverbank Restoration • Complete this work as soon as possible.

Sandy River Park Master Plan 3 1 APPENDIX B

32 Sandy River Park Master Plan APPENDIX B (cont.)

Sandy River Park Master Plan 3 3 APPENDIX C

34 Sandy River Park Master Plan APPENDIX C (cont.)

Sandy River Park Master Plan 3 5 APPENDIX C (cont.)

36 Sandy River Park Master Plan APPENDIX C (cont.)

Sandy River Park Master Plan 3 7 APPENDIX C (cont.)

38 Sandy River Park Master Plan APPENDIX C (cont.)

Sandy River Park Master Plan 3 9 APPENDIX D

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Sandy River Park Master Plan 4 1

‘GATEWAY TO MT. HOOD’

1515 SE Water Avenue, Suite 100 39250 Pioneer Boulevard Portland, Oregon 97214 Sandy, OR 97055 (503) 224-9560 503-668-5569 (phone) Please return to the City of Sandy www.grpmack.com 503-668-5891 (fax) or Group Mackenzie for re-use. GM Project Number: 2090278.00

42www.cityofsandy.com Sandy River Park Master Plan