Public Works Committee (Meets 1st Thursday of each month at 5:00 p.m.)

SPECIAL PUBLIC WORKS COMMITTEE MEETING March 10, 2022 GOVERNMENT CENTER ROOM 204 Members Present: Nick Ledin, Ruth Ludwig, Jenny Van Sickle Members Absent: Keith Kern Also Present: Todd Janigo, Chris Carlson, Jodi Saylor, Erin Abramson, Shelley Nelson* Councilor Van Sickle called the meeting to order at 3:04 pm. 1. Recommendation to award the Barker’s Island SOGL Site Improvement Project construction contract to Wren Works LLC at the proposed cost of $1,289,347. The contract for the Sustain Our Great Lakes (SOGL) project came in over budget due to material prices, labor, gas, oil prices and availability of products. Public Works was able to find ways to fund the project. There may be other possible funding sources once the 2021 audit is completed. The only reduction the project will take is to reduce some of the plantings. There was an abundance of plantings planned in some areas that could be thinned out and still maintain the stability and look of the project design. Public Works will continue to look for ways to reduce costs of the project as it moves along. Some of the Councilors expressed concern over the money that could be pulled from Parks, however, Director Cadotte feels comfortable with the amount because it connects the trail around the island and will create an amazing space for residents as well as increase traffic for the Marina, which in turn increases payments to the City. MOTION by Ludwig, second by Ledin, and carried to award the Barker’s Island SOGL Site Improvement Project construction contract to Wren Works LLC at the proposed cost of $1,289,347. 2. Recommendation to purchase a 2022 Vermeer BC1800XL Brush Chipper. This Brush Chipper will replace an older one that is at the end of its life. The mulch created from the use of this machine is used in various areas around the City and saves money when we don’t have to purchase mulch. MOTION by Ledin, second by Ludwig, and carried to approve the purchase of a 2022 Vermeer BC1800XL Brush Chipper. Councilor Van Sickle adjourned the meeting at 3:38 p.m. The next Public Works Committee meeting will be held April 7, 2022 at 5 p.m. in Room 204 of the Government Center. Minutes submitted to the Council Meeting of March 15, 2022. * Indicates virtual attendance 1 Special Pubic Works Committee Meeting March 10, 2022 PROJECT OVERVIEW EXISTING SITE AERIAL The City of Superior, WI, in collaboration with local stakeholders, are in the early stages of design for the “Sustain Our Great Lakes” site improvement project, located at 300 Marina Drive on Barker’s Island. The project is partially funded by the National Fish and Wildlife Foundation and has the primary goal of improving stormwater quality flowing into Lake Superior. The project includes six project areas where 1 water quality best management practices will be implemented. With innovative design solutions that better address stormwater runoff, this project will improve the functionality of 40-year old infrastructure, and will also be showcasing good stewardship of our natural resources and resiliency efforts by featuring new green infrastructure elements. S u p e r i o r B a y EXISTING SITE PHOTOS 4 2 M a ri n a D r 1 Small Craft Launch Area 2 Parking Lot 3 Lawn 6 Barker’s Island 3 Inn 5 4 Utility Berm 5 Tennis Courts 6 Roof Drain PROJECT TIMELINE FALL 2020 WINTER 2021 SPRING 2021 SUMMER 2021 FALL 2021 Design Bid Advertisement Construction 0 30 60 120 Feet Project Completion DESIGN OVERVIEW OVERALL PROPOSED SITE PLAN Small Craft Launch Area The site plan to the right illustrates the project areas where improvements will take place. Site KEY improvements will include enhancements to the City-owned small craft launch area, reconstruction A Walking Trail Connectors and site lighting of the main parking lot at Barker’s Island Inn, installation of a new porous pavement trail system with native landscaping, a new recreational green space near the marina, and roof drain Habitat Restoration pretreatment enhancements at the Barker’s Island Inn’s main entry. Stormwater Trees Building upon the grant’s primary goal to improve overall water quality, the following strategies have Remove Impervious been selected to restore some of the natural processes required to manage water and create a healthier S u p e r i o r B a y Surfaces environment on Barker’s Island. The associated symbols are illustrated on the enlargement plans.. Biodetention Planter A PROJECT & GRANT GOALS Green Island Planter • Habitat Restoration Parking Lot Area Stormwater Biofiltration Median provide erosion control and reduce sediment in runoff Permeable Pavement • Stormwater Trees plant 150 trees for water uptake, aesthetics, and habitat management M Raingarden a • Remove Impervious Surfaces ri n a Bioswale reduce stormwater runoff by removing 43,780 sq ft (1.05 acres) of impervious surface D r Roof Runoff Pretreatment • Green Infrastructure System combination of soil and vegetation strategies to create 16,500 sq ft of landscape/pervious area, and provide additional stormwater storage volume GREEN INFRASTRUCTURE STRATEGIES • Biodetention Planter: A combination of a swale and planter, featuring a walled side and gentle slope to increase vegetated space and infiltrating area A • Green Island: A vegetated space on a parking lot island that is offset from the curb and used for street trees and green space Barker’s • Stormwater Biofiltration Median: A traffic/parking lot median that consists of a drainage Island Innd Native Vegetation infrastructure to collect water, filter through a soil media, and channels treated runoff + Trail Area through an underdrain or perforated pipe • Permeable Pavement: Porous paving material intended to allow passage of water through the pavement section • Raingarden: Depressed area, planted with grasses and flowering perennials, that collects and filters stormwater runoff during small storm events and allows it to infiltrate into A the ground Recreational Greenspace • Bioswale: Shallow, vegetated, landscaped depressions with sloped sides. They are Area designed to capture, treat and infiltrate stormwater runoff as it moves downstream • Roof Runoff Pretreatment: Modular system, that collects stormwater runoff during small 0 30 60 120 Feet storm events and slows down the water flow before it reaches the treatment strategy SCHEMATIC PURPOSES ONLY PROJECT + DESIGN OVERVIEW September 24, 2020 Barker’s Island, Superior, WI LET US KNOW WHAT YOU THINK TAKE A QUICK SURVEY AND LEAVE YOUR COMMENTS ON THE PROPOSED DESIGN ONLINE! SURVEY MONKEY LINK: HTTPS://WWW.TINYURL.COM/BARKERSISLAND PROJECT CONTACTS CITY OF SUPERIOR, WI CONTACT: TONIA KITTELSON, STORMWATER MANAGER, (715) 969-6134, KITTELSONT@CI.SUPERIOR.WI.US LHB INC. CONTACT: HEIDI BRINGMAN, PROJECT MANAGER, (218) 279-2429, HEIDI.BRINGMAN@LHBCORP.COM SMALL CRAFT LAUNCH + STAGING AREA ENLARGEMENT PLAN This area includes an upgraded design for a non-motorized small craft launch with a pervious paver drop-off area, a pervious paver access to the lakeshore, a stabilized launch and staging area near the KEY Small craft launch on shoreline, a perimeter fence and associated erosion control and native landscaping. A articulating block to protect shoreline LAUNCH PRECEDENTS B Grass Paver Path S u p e r i o r B a y C Split Rail Fencing D Swale E Loading Area, No Parking F Staging Area + Trail Link G New Pedestrian Crossing A Permeable Pavement Bioswale Stormwater Trees B Stormwater Runoff Flow C Stormwater Infiltration LAUNCH MATERIALS D C 10 Trees Planned E x is ting Trail Articulating Block Permeable Pavers Grass Pavers Bioswale F LAUNCH ACTIVITIES E Ma G rin a D r 0 5 10 20 Feet PARKING LOT + ROOF PRETREATMENT WITH ENLARGEMENT PLAN SCHEMATIC PURPOSES ONLY TRAIL 0 50 100 200 Feet The redesigned parking lot at Barker’s Island Inn will include new impervious and pervious pavement, a S t o r m p o n d revised parking configuration with improved traffic circulation, pedestrian safety, parking lot islands with 50 Trees Planned green infrastructure elements, grading, and associated site lighting. In addition, four roof pretreatment systems will be retrofitted at the existing downspouts near the Inn’s main entrance, capturing the roof B E x run-off and directing it to the parking lot green islands for further treatment. is ti n g A PARKING LOT PRECEDENTS T ra il S u p e r i o r B a y M a ri n a D r 199 D Par king Sta Delivery lls Entrance D Trail Crossing E GREEN INFRASTRUCTURE STRATEGIES F C KEY A Porous Asphalt Trail B Bus Parking Barker’s Island Inn C Soft Surface Trail D Trailer Parking (9) Pedestrian Crossing + Trail E C urb Cut - allows water to Connection Biodention Planter Biodention Planter F Lift Station flow into islands Trail Crossing Alternate Biodetention Planter Green Island Planter Stormwater Biofiltration Median r m B e Permeable Pavement E Bioswale Roof Runoff Pretreatment System C Stormwater Runoff Flow Stormwater Biofiltration Stormwater Infiltration Soft Surface Trail Biodention Planter Green Island Planter Median SCHEMATIC PURPOSES ONLY SMALL CRAFT LAUNCH + PARKING LOT WITH TRAIL September 24, 2020 Barker’s Island, Superior, WI LET US KNOW WHAT YOU THINK TAKE A QUICK SURVEY AN LEAVE YOUR COMMENTS ON THE PROPOSED DESIGN ONLINE! SURVEY MONKEY LINK: HTTPS://WWW.TINYURL.COM/BARKERSISLAND PROJECT CONTACTS CITY OF SUPERIOR, WI CONTACT: TONIA KITTELSON, STORMWATER MANAGER, (715) 969-6134, KITTELSONT@CI.SUPERIOR.WI.US LHB INC. CONTACT: HEIDI BRINGMAN, PROJECT MANAGER, (218) 279-2429, HEIDI.BRINGMAN@LHBCORP.COM TRAILS + NATIVE VEGETATION 1’ NATIVE PLANTINGS POROUS PAVEMENT A new 5 foot wide pervious walking trail with native vegetation Aside from attracting and supporting pollinator species, Porous paving material is 1 will begin on the southeast side of the large parking lot and native plants have great benefits to the environment. They intended to allow passage wrap around the south side of the Inn to connect up with the require little irrigation due to more extensive root systems, of water through the existing trail and new recreational area on the west side of the assist in sediment settlement and nitrogen uptake and are pavement section. Shown hotel building (see plan on the bottom right). In addition, a new naturally drought tolerant. here is one example of trail spur will also be routed along the west side of the parking permeable asphalt lot and will link up with the existing multi-use path along Marina Root Sections of Native plants Drive. Below are two cross sections illustrating the proposed trail conditions. Native planting designs along the new trail corridor will consist of low maintenance trees, shrubs, grasses and perennials that 2’ promote native pollinator species and can tolerate periods of 2 both drought and water saturations. TRAIL SECTIONS: SPATIAL ANALYSIS STRUCTURING PLANTINGS KEY A Edge Plantings B Transitional Plantings 1 1’ C Core Habitat All Planting Zones A B C 2’ 2 0 5 10 20 Feet 80 TREES PLANNED ALONG TRAILS All Season SCHEMATIC PURPOSES ONLY Interest SCHEMATIC PURPOSES ONLY RECREATIONAL GREENSPACE ENLARGEMENT PLAN To accommodate a more usable recreational greenspace for marina users, hotel guests and the 30 Trees Planned general public, this area includes the removal of three deteriorated tennis courts near the water’s edge. Instead, design possibilities for this area may include a shade structure, small gathering spaces with flexible seating, a rain garden and canopy trees, as well as an open green space for “bring your own lawn games” activities. The City and design team will continue to work with local stakeholders to further develop the design and programming elements for the recreational greenspace. PRECEDENTS A H F Event Space Raingarden Open Green Space Small Gathering D Node E D MATERIALS B H C KEY G A Hammock Forest E B Soft Surface Path C Plaza with Shade Structure B D Movable Seating Shade Structure Shade Structure M ovable Furniture Native Plantings H E Small Gathering Node F Picnic Ares with Grills POTENTIAL ACTIVITIES IN THE OPEN SPACE G Open Green Space F H Trail Connection Permeable Pavement Habitat Restoration Raingarden Stormwater Runoff Flow Stormwater Infiltration S u p e r i o r B a y Yard Games Hammock Picnic Areas Winter Games 0 10 20 40 Feet Forest SCHEMATIC PURPOSES ONLY TRAILS, NATIVE PLANTINGS, + RECREATIONAL GREENSPACE September 24, 2020 Barker’s Island, Superior, WI LET US KNOW WHAT YOU THINK TAKE A QUICK SURVEY AN LEAVE YOUR COMMENTS ON THE PROPOSED DESIGN ONLINE! SURVEY MONKEY LINK: HTTPS://WWW.TINYURL.COM/BARKERSISLAND PROJECT CONTACTS CITY OF SUPERIOR, WI CONTACT: TONIA KITTELSON, STORMWATER MANAGER, (715) 969-6134, KITTELSONT@CI.SUPERIOR.WI.US LHB INC. CONTACT: HEIDI BRINGMAN, PROJECT MANAGER, (218) 279-2429, HEIDI.BRINGMAN@LHBCORP.COM