What is an As-Built, and Why is it Important?

ACD recently led a project that improved the water quality benefits provided by two stormwater ponds adjacent to Martin Lake in Linwood Township. The project increased the size and depth of the ponds to the maximum extent practicable within the limited spaces available. The projects were a great success, and were recently highlighted in an outreach article titled, 'Water Quality Improvements Constructed for Coon and Martin Lakes'. They're worth mentioning again in order to highlight a critical piece of successful construction management that most people never see, the as-built survey.

As-built surveys, also commonly referred to as record drawings, provide formal documentation of exactly how a project was installed. They document the actual results of the construction project rather than the planned layout shown in the project design and are critical for project closeout.

As-built surveys ensure the project was built to meet the specifications in the original plan set. This allows the project engineer to confidently sign-off that the project was installed as per the plan. If any deviations from the original plan were approved during the construction process, the as-built survey will show the changes as they were installed and provide an opportunity to formally document those changes. Final payment to the contractor is also typically withheld until engineer sign-off on the as-built survey.

The as-built survey also provides a formal record that can be used to standardize how a project should be maintained over its lifespan. In the event of these stormwater ponds, accumulated sediment and debris should be periodically removed to achieve the original design depths in order to ensure the ponds continue to function at maximum efficacy.

Depending on the type and scale of a project, multiple as-built surveys may be completed throughout the construction process to confirm critical elevations and layouts are being met prior to approving advancement to the next construction step. They are typically shown as an overlay on the original plan sheet to allow a direct comparison and easy identification of any significant deviations from the original plan.

The 228th Place stormwater pond as-built (see plan sheet below) documented key elevations around the pond to ensure safe side slopes were achieved. It also documented the stabilized outlet and controlled overflow elevation to ensure neighboring properties were not at risk of flooding as a result of the project.

As-built surveys and the associated formal documentation they provide can sometimes be neglected because project installation went smoothly and according to plan, but they are a critical component to successful construction management and project closeout.

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2020 Anoka County Outstanding Conservationist – City of Blaine

The Anoka Conservation District selected the City of Blaine as the 2020 Anoka County Outstanding Conservationist. The City of Blaine has over 800 acres of dedicated open space throughout the City creating greenway corridors, opportunities to protect and restore biological diversity, and outdoor education and recreational opportunities. The Blaine Wetland Sanctuary is one of the City's open space sites serving many functions. The northern and central portions of the Blaine Wetland Sanctuary are being restored to increase diversity and are enrolled as wetland banks, which will generate funds for the City to maintain and update the city's parks, trails and open spaces. The protected open space is a refuge for the rare plants currently existing there and also has a diversity of micro habitats to accept salvaged rare plants. The City of Blaine has promoted and facilitated environmental education at the Blaine Wetland Sanctuary and public engagement with invasive species work parties and planting salvaged rare plants. The City of Blaine has had the difficult task of turning once ignored and undesired wetlands into a community resource. A special thanks to Rebecca Haug for her collaboration on projects of mutual interest, and city council member Swanson and Mayor Ryan have been strong advocates for conservation work.

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Clean Water Funds for Eroding Rum Riverbanks

The Board of Water and Soil Resources (BWSR) is recommending $440,000 in funding to ACD from the Clean Water Fund[1] competitive grant fund for stabilizing eroding Rum Riverbanks. This funding will be used in conjunction with funds already received from the Lessard-Sams Outdoor Heritage Council[2] ($816,000 to ACD) and the DNR Conservation Partners Legacy[3] grant ($185,000 to Anoka County Parks) for Rum Riverbank stabilization and habitat enhancement projects. These three funding sources will cover projects of all sizes, from small banks only needing cedar tree revetments to large failing banks requiring sophisticated engineering and reconstruction. The funds from the Clean Water Fund grant will be prioritized for the latter.

With additional matching funds from Anoka County, the Upper and Lower Rum River WMOs, ACD and landowners, over $1.5M-worth of streambank projects will be installed over the next three years to help the Rum River. The Rum River is a highly prized resource in Anoka County, but it is on the brink of impairment for phosphorus concentrations, and it has extensive bank erosion. The sediment washing into the river from these eroding banks dirties the water, increases nutrients, and smothers habitat for aquatic wildlife. ACD performed a streambank erosion analysis[4] from 2017 to 2019 that led to this concerted effort by ACD and Anoka County to secure state grant funding and local matching funds to make a big push to help the River. 

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Christmas Tree Care and Fun Facts

Ever since I was a young girl, my family has had a 'real' tree. Our trees were cut from our farm and some were 'Charlie Brown' trees but I have great memories of going out into the woods.

With my own family, we have a tradition of going to our local Christmas tree farm. It's definitely a memory-making experience and my girls always enjoy marching down the rows of firs, spruce, and eventually a white pine, which also happens to be my favorite conifer. I even manage to teach the girls a thing or two about how to identify the different species.

Why buy a real tree vs. a manufactured one?

  • An acre of Christmas trees can remove 8,000 pounds of carbon from the atmosphere.
  • Are biodegradable and recyclable (into mulch).
  • Provide more than a holiday decoration:
    • Habitat and shelter for birds and small animals.
    • Shade and cool the soil.
    • Help prevent erosion.
    • Provide year-round beauty in our Minnesota landscape.
    • Buying locally gives us a fresh tree and supports local businesses. Here's a list of local tree farms from the MN Christmas Tree Association: https://mncta.com/choose-cut if you don't have a favorite already.


Christmas Tree Care

Make a fresh cut. Before you bring the tree into your home and place it in a stand, re-cut the trunk at least one inch from the bottom just before putting it in the stand. Even if you just cut it, this re-opens the tree stem so it can drink water. Christmas trees are very thirsty! It is not unusual for a tree to drink 2 gallons of water the first day it is in the stand.

Choose a spot away from heat sources. Heat sources like heat registers, space heaters, fireplaces, wood stoves, televisions, computer monitors, etc. speed up evaporation and moisture loss of the tree.

Water immediately. After making the fresh cut, place the tree in a large capacity stand with warm water. The stand you use should hold at least one gallon of fresh water.

Don't add anything to the water! Research has shown that plain tap water is the best. Some commercial additives and home concoctions can actually decrease a tree's moisture retention and increase needle loss.

Check the water level daily. Do not allow the water level to drop below the fresh cut or the stem will reseal and be unable to drink.

What can I do with my tree after the holiday season?

In Anoka County, Christmas trees can be dropped off for free once they've been cleaned of all tinsel, ornaments, lights, etc. Check out this link for more information. https://www.anokacounty.us/359/Compost-Sites

These trees are chipped and recycled into mulch. Mulch moderates soil temperatures, suppresses weeds and helps hold soil moisture.

After removing indoor decorations, you can also set your tree in its stand outside and decorate it for our winter birds. (No need to water it). The Humane Society Wildlife Land Trust recommends a variety of homemade treats such as suet cakes, branches of berries, popcorn, pinecones smeared with peanut butter, and other treats. We simply set ours out by our bird feeders and the birds love the extra cover from wind, cold and predators. In early spring, we bring it to our local compost site.

Will we ever run out of trees?

The National Christmas Tree Association reports that for every tree that is cut, 2 to 3 trees are planted the following spring. So the more trees sold, the more that are planted. And the more trees planted, the more carbon dioxide is removed from the atmosphere, releasing even more oxygen. This helps reduce our carbon footprint.

This information was adapted from MN Extension https://extension.umn.edu/yard-and-garden-news/christmas-tree-care-and-fun-facts 


More information can be found here: https://www.treetriage.com/tree-removal/christmas-trees/

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Smart Salting Display at the Northtown Library in Blaine

Chloride is virtually impossible to remove from a waterbody. Once it's there, it's there for good. Just one teaspoon of salt contains enough chloride to pollute five gallons of water forever! And according to the Minnesota Pollution Control Agency, we apply an estimated 365,000 tons of salt in the Twin Cities metro area each year. And what's even worse is that research shows that 78 percent of that salt is either transported to our groundwater supplies or remains in our local lakes and wetlands.

For the whole month of December, a display all about smart salting is up at the Northtown Library in Blaine. The display is a collaboration between the Anoka Conservation District and the Coon Creek Watershed District. It provides information about chloride pollution in Minnesota along with easy ways for residents to reduce their salt use while remaining safe this winter. When done viewing the display, library patrons can virtually sign the Smart Salting Pledge to reduce their salt use this season.

Learn more about smart de-icing practices here: https://www.mwmo.org/learn/preventing-water-pollution/snow-ice-removal/ 

Sign the Pledge here!

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The Recovery of the Wild Turkey Population in Minnesota

Wild Turkey - MN DNR

Did you know that wild turkey had gone from a native population of millions of birds to being almost extirpated by 1900 in the United States?

The restoration of the American wild turkey is one of the greatest wildlife conservation success stories.

That success story began in 1973 in Minnesota. The MN DNR traded a flock of its homegrown ruffed grouse for 29 turkeys from Missouri. The Missouri-born birds were released in Houston County in southeastern Minnesota and the population grew rapidly. Many partnering turkey advocates aided in their return, including members of the National Wild Turkey Federation who helped transport the flocks to new habitats. The restoration of the wild turkey over the past 25 years is one of Minnesota's greatest conservation success stories. Once rare, today wild turkeys are becoming a common sight throughout southern and western and even central Minnesota.

Wild Turkeys live year-round in open forests with interspersed clearings. They nest on the ground in dead leaves at the bases of trees, under brush piles or thick shrubbery, or occasionally in open fields. Wild turkeys are omnivorous, and their diet changes by the season: in spring and summer, they eat insects, seeds, and leafy vegetation; in fall and winter, they eat tree nuts, seeds, and berries. They will also eat small amphibians and reptiles. Poults, young turkeys, feed heavily on insects.

The Anoka Conservation District with funds from the Outdoor Heritage Foundation and National Wild Turkey Foundation is enhancing turkey habitat at the Robert and Marilyn Burman WMA and Gordie Mikkelson WMA. Tree thinning and buckthorn removal will open the forest and promote oak regeneration. Acorns are a favorite fall food. Increased native plant diversity in the woodlands, savanna, and prairies will attract a diversity of insects, providing a high protein food source.

Give thanks to the many conservationists who worked to restore wild turkey populations and their habitat. 

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Top Ten Winter Bird Feeding Tips

White-Breasted Nuthatch

10. Make sure seed is accessible and dry. Hopper or tube feeders are good at protecting seed from wet weather. Sweep snow off of platform feeders, or clear a place on the ground where you can scatter seed for ground-feeding species such as sparrows, towhees, juncos, and doves.

9. Make a windbreak. Make a windbreak using your old Christmas tree or the remains of a brush pile. Consider planting shrubs next to your feeders where the birds can rest out of the wind and escape from predators. Consider clearing a small area of snow off the ground to scatter seed if it's too soft to support their weight.

8. Keep extra feeders for use in bad weather. We keep an extra-large-capacity tube feeder in the garage for use when nasty weather comes. It not only gives the birds another place to eat, which means more birds can eat at one time, but it also cuts down on our trips outside for refilling the feeders. Other extras to consider having: peanut feeder, suet feeder, satellite feeder (for the small birds to use), and a hopper feeder.

7. Scatter seed in sheltered places. Not all birds will venture to your feeder. Some species prefer to skulk in the thickets, brambles, and other secure places. For these species, consider scattering some seed (black-oil sunflower, sunflower bits, peanut bits, mixed seed) under your deck, in your hedges and bushes, or even along the edge of a wooded area. Dark-eyed juncos especially prefer to feed on food scattered on the ground along with tree sparrows and white-throated sparrows.

6. Put out high-energy foods such as suet, meat scraps, and peanut butter. Fat gives the biggest energy boost to winter birds and without enough energy to keep them going, many songbirds would not survive a cold winter night. Suet (the fat removed from processed beef), meat scraps, and peanut butter all provide fat to birds that eat them. If you don't have a suet feeder, use a mesh onion bag. Suspend it from a tree branch or iron feeder hook. To feed peanut butter, drill one-inch holes in a foot-long section of a small log. Insert a screw eye into one end of the log. Smear peanut butter into the holes and suspend the feeder from the screw eye. And, no, peanut butter will not stick to the roof of a bird's bill and choke it to death.

5. Use a birdbath heater wisely. A water heater can keep your birdbath open in the coldest of weather, which is good but place several large rocks in your bath so there is not enough room for a bird to bathe, but still plenty of places for a thirsty bird to get a drink. When the weather warms up you can remove the rocks and let your birds get on with their hygiene.

4. Offer mealworms in a heavy dish or small crock. Use a heavy dish so the wind can't blow the worms and dish away. This is a high protein snack that many birds enjoy and can be found in most feed stores. They are relatively expensive so use them sparingly on the coldest days or in the spring when an unexpected cold snap can leave migrants without much to eat.

3. Furnish your bird houses. Imagine you're a bird roosting in a nest box on a cold winter's night. Wouldn't it be nice to snuggle down into some dried grass or dry wood shavings in the bottom of the house? Layer three to four inches of clean dry meadow grass in the bottom of bluebird boxes after the last nesting of the summer. Wood shavings work well, too. Don't use sawdust, however; it can retain moisture once wet, which does not help the birds keep warm.

2. Plug the air vent holes in your bird houses with removable weather stripping. We use the claylike weather stripping that comes in a roll (Moretite is one brand) to plug the air vent holes in our bird houses. Good ventilation is necessary on a scorching summer day, but it's a real liability for birds seeking winter shelter. Think how cozy the birds will be in a well-sealed house.

1. Be ready for big changes in weather. If you keep abreast of the weather developments you'll know when bad weather is coming, and you'll be able to stock up on seed, suet, and other goodies. You can also be ready to take on some of the activities listed above. Conversely, when the weather breaks, take advantage by cleaning and disinfecting your feeders (one part bleach to nine parts hot water). Whatever you do, don't let yourself be caught totally unprepared for harsh winter weather. 

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Thank You Water Monitoring Volunteers!

The Anoka Conservation District would like to thank our hardworking water monitoring volunteers for all the work they did throughout the 2020 monitoring season. Local volunteers install monitoring equipment near where they live and then take readings throughout the year. Water levels on a large number of lakes are recorded as well as tracking daily rain totals. This type of data is used in analysis and when making other natural resource management decisions. Data networks like these are not possible without the help of local residents. All of the data is available to the public through online databases operated by State of Minnesota.

Thank you Volunteers!


https://www.dnr.state.mn.us/climate/climate_monitor/precipcharts.html

https://www.dnr.state.mn.us/lakefind/index.html

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Water Quality Improvements Constructed for Coon and Martin Lakes

One rain garden and two stormwater pond renovations were completed in November to treat stormwater before it reaches Martin and Coon Lakes. The projects will collectively treat 39 acres of residential development that previously were draining to the lakes with little or no treatment. They will keep 2,100 pounds of sediment and 5 pounds of phosphorus from reaching the lakes each year.

These waterbodies were priorities because both lakes are surrounded by homes and heavily used for recreation. Martin Lake is nearing the criteria for being removed from the State's list of impaired waters. Coon Lake has good water quality but is under pressure.

The rain garden was constructed in cooperation with a residential landowner along Hupp Street. Their property is a key location where drainage from 8 acres converged and entered a catch basin that piped stormwater to Coon Lake. Curb cuts on each side of the catch basin now intercept that water, allowing it to soak into the ground within the rain garden. Pollutant removal is estimated to increase by 52% compared to the pre-project condition. Mulching and planting of the gardens will be delayed until spring 2021 due to cold temperatures early in fall 2020. The property owners will maintain the garden.

The stormwater pond projects are redesigns and renovations of older ponds. Both ponds are on Martin Lakeshore within township-owned property. Both basins had filled with sediment over time and were providing little water quality treatment. Now, the basins are even larger than originally constructed to maximize pollutant removal. Pollutant removal is estimated to increase by 84% and 104%, respectively, at the two ponds. Linwood Township will own and maintain the basins.

These projects are part of a State Clean Water, Land and Legacy grant to the Sunrise River Watershed Management Organization. The Anoka Conservation District is managing the projects. Additional funds remain and will be used for similar projects in 2021.

Collaborators on these projects included the ACD, SRWMO, Martin Lakers Association, Linwood Township, and the City of East Bethel.

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ACD Partnering with City of Anoka for Mississippi Riverbank Stabilization

Approximately 1,500 linear feet of eroding riverbank within Mississippi River Community Park in Anoka will be stabilized in 2021. The project is currently in the early stages of design and focuses on a stretch of severely eroding riverbank that was documented in an erosion inventory completed by ACD.

Eroding river banks contribute to the Mississippi River's sediment and turbidity impairments through direct loading of sediment and nutrients that degrade overall water quality as well as aquatic and nearshore habitat. Stabilization of actively eroding riverbanks is one of the most cost-effective practices to improve water quality because 100% of the sediment reaches the waterway.

Stabilization techniques will include bioengineering with native vegetation and a rock armored bottom of slope to stabilize the riverbank. The project will reduce pollutants by 529 tons of sediment and 847 pounds of phosphorus annually. Other benefits include aquatic life diversity and abundance, and improved drinking water quality because the project site is immediately upstream of drinking water intakes for the Twin Cities.

This project will also showcase river stewardship and enhance public recreation. Mississippi River Community Park and adjacent Anoka-owned King's Island include 1.7 miles of Mississippi River trail, 0.78 miles of riverfront, 0.91 miles of oxbow channel, pedestrian access to the island, sporting fields, public duck and deer hunting, and a fishing dock. This project will make over ¼ mile of unsafe riverbank more accessible, stable, and fishable for users. By naturalizing the riparian zone, this project complements the Mississippi River Corridor Critical Area rules.

The project is funded by a Clean Water Fund grant, a Watershed Based Funding grant, and match from the City of Anoka. Watch for more updates from ACD and the City of Anoka as the project progresses.

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Teaching Students about Natural Resources during a Pandemic

One activity that ACD does every year is take local high school students to streams near their schools to collect macroinvertebrates. Many of these organisms are the larval forms of many of our common insects. Think mosquitoes, mayflies, black flies, and dragon flies. Assessing the community of invertebrates living in a stream over time can give us a good indication of how healthy that stream is (i.e. how good the water quality is). This is because the different types of these invertebrates have varying levels of tolerance to polluted water. Some can only live in very clean water, while others can survive in very polluted water.

This exciting lesson combines a field trip to a stream and the opportunity to play in the water, with a lesson about the natural world and how we can use the biotic organisms living in those streams to monitor their health over time. In the midst of the COVID-19 pandemic, we had to think outside of the box to make this fun and important lesson happen in 2020. In the spring of 2020, we were not able to do this lesson with any schools, because all of them were full time distance learning, and we had never prepared a distance learning lesson before. This fall however, we got a little more creative.

I made a virtual lesson via Go Pro video with a teacher from the Forest Lake Area Learning Center and his sons. With Totino Grace and St. Francis High School students, we worked in small groups in the field with masks on, disinfecting all equipment between classes. We also had classes attend virtually while a teacher held the live feed camera up and talked to the students that were attending online. Overall, whether by recording, live video stream, or in person at the river respecting social distancing and mask wearing, just about 200 kids still got to take part in this activity from the three schools mentioned. It took a little more time and effort than usual, but in the end we made sure a large number of local students still got the opportunity to take part. 

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Join the Growing Community of Storm Drain Adopters in Anoka County!

Anoka County residents have prevented nearly 350 pounds of algae from growing in our lakes and streams by doing this one simple thing: Adopting a Storm Drain!

Trash and decaying organic debris like fallen leaves are harmful to lakes, rivers, and streams. As leaves decompose, the resulting nutrients fuel algae growth. The unsightly algae blooms can cover the surface of polluted lakes, sucking oxygen out of the water and choking fish and native plants. Keeping leaves and other pollution out of our storm drains helps keep our lakes and rivers clean and clear.

Since the start of the Adopt a Drain program, over 7,400 people have adopted drains throughout Minnesota and collectively prevented 250,000 pounds of pollution from getting into our waters. This is the largest community engagement program of its type in the entire United States!

Getting involved is simple and only takes a few minutes. Just follow these steps:

   1. Adopt an available storm drain near you at www.Adopt-a-Drain.org

   2. Gather the tools you'll need. These might include: gloves, rake, trash grabber, dust pan, safety vest, bins for separating waste, yard and/or trash bag

   3. Collect and separate trash and recycling from the area around your adopted drain

   4. Rake or sweep up leaves, sediment, and sticks and place in compost or yard waste bag

   5. Report the debris you collect on www.Adopt-a-Drain.org


To learn more and sign up, visit www.Adopt-a-Drain.org 

Photo credit: CleanWater MN

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Anoka County is 100% Compliant with the MN Buffer Law

The Anoka Conservation District is proud to announce that Anoka County is now 100% compliant with the state's buffer law! The law was passed back in 2015 with the goal of improving water quality throughout the state by reducing pollutants entering public ditches and public waters. This milestone was achieved through strong partnerships between Anoka County, Anoka Conservation District, local landowners, and the Board of Water and Soil Resources. This achievement doesn't mean that the hard work is over but it does represent what is possible for the state of Minnesota when strong environmental policy is handled on the local level. It will be exciting to see the benefits to the state's water systems come to fruition after years of work.

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Cedar Tree Revetment at Rum River Central Regional Park

ACD installed approximately 650 linear feet of cedar tree revetment at Rum River Central Regional Park this past month. This type of project prevents erosion of shorter river banks using cut eastern red cedar trees anchored along the toe of the bank in a shingled fashion. The thick branches of the eastern red cedars dissipate the erosive energy of the water as it washes along the streambank on the outside bend of a river. In this particular area at the park, a walking trail was at risk of washing out soon if the erosive scour continued unchecked. In addition to protecting the walking trail, this project will keep about 30 tons of sediment out of the river every year!

In order to accomplish this feat, we relied on numerous partnerships. Anoka County Parks helped us by purchasing the cable and earth anchors, as well as providing tree hauling services. Sherburne County donated 130 eastern red cedar trees from county-owned property. And finally, a large portion of the labor involved was done by a Conservation Corps. MN & IA crew that worked on this project for 12 ten-hour days. Thank you to all of these partners! 

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Mississippi Riverbank Stabilization Project Complete

The previously highlighted riverbank stabilization project on the Mississippi River in Ramsey has been completed. The residential property has 100 linear feet of riverbank that was nearly vertical and approximately 25' tall. Severe erosion was causing large portions of the bank to collapse and enter the river every year. The soil associated with those bank failures introduced significant volumes of sediment and nutrients into the river that contributed to water quality degradation. Stabilization of this severely eroding riverbank reduces annual sediment loading to the river by an estimated 224,000 lbs and total phosphorus loading by an estimated 112 lbs.

Project elements included clearing and grubbing of the few trees remaining on the steep slope, grading, riprap at the bottom of the slope, a reinforced soil slope (RSS) above the riprap to the top of the bank, native seed and plants, and erosion control blankets. The RSS consists of a honeycomb-like grid that is anchored to the slope and enables the finished slope to be steeper (e.g. 1.5 horizontal : 1 vertical), which maximizes the preservation of existing trees at the top of the slope.

Project funding is provided by a Clean Water Fund grant and landowner match.

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