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Beaver Tales... Can We Coexist?

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The many acres of trails on the West Side of the Blue Hills Trail are often home to beavers. In years past, we've been able to tolerate a few of their permanent dams while trying to maintain the adjacent trails in the summer, and groom next to their dams in the winter.

Sad to say, too often we've resorted to trapping to remove 'nuisance beavers' (we report the problems to the County Forestry Department, and they hire out the work to a professional trapper).

All summer we've observed an active 200-foot long beaver dam that is located next to the ski trail (between intersections I and H), with about 130 feet of the trail wet enough to perhaps make it difficult to groom and ski this winter. Instead of trapping out the beavers at this spot, we decided to try a different approach. We'd like to learn how to coexist.

The first photo (below) shows this location in early September. See the small bridge? Beyond the bridge the trail has water slowly moving over the trail. We've debated various options, and yesterday (November 13th) decided to install a small beaver deceiver (pond leveler) device.

Here's what Sam, Benny, and Tom did...

·     Purchased five 10-foot lengths of 4" corrugated HDPE pipe ('drain tile') and one filter

·     Breached the beaver dam with the goal of dropping the water level about two feet

·     Screwed the pipe sections together, and fastened the filter on the upstream end

·     Drilled holes in the first 20 feet of pipe (to allow trapped air to escape)

·     Attached a weight five feet from the upstream end (to hold the pipe underwater)

·     Waded into the pond with the upstream end of the pipe (and the weight)

·     Placed the downstream end of pipe (30 feet in length) through the breach in the beaver dam, and under the bridge on the ski trail

·     Dropped the upstream end (and weight) into water that was probably five feet deep

·     Placed a vertical wood post in the breach of the dam, and attached the pipe to that post

·     Confirmed a nice volume of water flowing through the downstream end of the pipe

The materials cost about $30. We’re hoping the beavers quickly show up and repair the breach in the beaver dam. This hopefully would seal the pipe into the dam at a height that will control the water level – leaving enough water for the beavers to use the pond, but keeping the water level low enough to minimize the tendency for water to leak through the dam and flow over the ski trail.

We learned a lot from this first attempt at installing a pond leveling device. It was a nice muddy day playing in the beaver habitat, here’s hoping we can coexist.

Location of beaver dam on West Side of Blue Hills Trail
Location of beaver dam on West Side of Blue Hills Trail
Long beaver dam adjacent to ski trail
Long beaver dam adjacent to the ski trail
Sam breaching the beaver dam
Sam breaching the beaver dam
Benny searching for rocks to help weigh own the pipe
Benny searching for rocks to put in a container to help weigh down the pipe
30 feet of pipe to be placed downstream of the beaver dam
30 feet of pipe to be placed downstream of the beaver dam, and under the bridge
Benny directing placement of the pipe through the dam
Benny directing placement of the pipe through the dam
Tom checking for adequate water flow through the pipe
Tom checking for adequate water flow through the downstream end of the pipe

Image information: If you want to save any images from this blog post for yourself, simply right click the full size image to obtain the original. Higher quality images are available by contacting our website.  To avoid copyright infringement, reprints must credit the Blue Hills Trail Association, Inc.

Beaver Tales... Can We Coexist?

HomeDouble right arrow iconTrail workDouble right arrow icon

The many acres of trails on the West Side of the Blue Hills Trail are often home to beavers. In years past, we've been able to tolerate a few of their permanent dams while trying to maintain the adjacent trails in the summer, and groom next to their dams in the winter.

Sad to say, too often we've resorted to trapping to remove 'nuisance beavers' (we report the problems to the County Forestry Department, and they hire out the work to a professional trapper).

All summer we've observed an active 200-foot long beaver dam that is located next to the ski trail (between intersections I and H), with about 130 feet of the trail wet enough to perhaps make it difficult to groom and ski this winter. Instead of trapping out the beavers at this spot, we decided to try a different approach. We'd like to learn how to coexist.

The first photo (below) shows this location in early September. See the small bridge? Beyond the bridge the trail has water slowly moving over the trail. We've debated various options, and yesterday (November 13th) decided to install a small beaver deceiver (pond leveler) device.

Here's what Sam, Benny, and Tom did...

·     Purchased five 10-foot lengths of 4" corrugated HDPE pipe ('drain tile') and one filter

·     Breached the beaver dam with the goal of dropping the water level about two feet

·     Screwed the pipe sections together, and fastened the filter on the upstream end

·     Drilled holes in the first 20 feet of pipe (to allow trapped air to escape)

·     Attached a weight five feet from the upstream end (to hold the pipe underwater)

·     Waded into the pond with the upstream end of the pipe (and the weight)

·     Placed the downstream end of pipe (30 feet in length) through the breach in the beaver dam, and under the bridge on the ski trail

·     Dropped the upstream end (and weight) into water that was probably five feet deep

·     Placed a vertical wood post in the breach of the dam, and attached the pipe to that post

·     Confirmed a nice volume of water flowing through the downstream end of the pipe

The materials cost about $30. We’re hoping the beavers quickly show up and repair the breach in the beaver dam. This hopefully would seal the pipe into the dam at a height that will control the water level – leaving enough water for the beavers to use the pond, but keeping the water level low enough to minimize the tendency for water to leak through the dam and flow over the ski trail.

We learned a lot from this first attempt at installing a pond leveling device. It was a nice muddy day playing in the beaver habitat, here’s hoping we can coexist.

Location of beaver dam on West Side of Blue Hills Trail
Location of beaver dam on West Side of Blue Hills Trail
Long beaver dam adjacent to ski trail
Long beaver dam adjacent to the ski trail
Sam breaching the beaver dam
Sam breaching the beaver dam
Benny searching for rocks to help weigh own the pipe
Benny searching for rocks to put in a container to help weigh down the pipe
30 feet of pipe to be placed downstream of the beaver dam
30 feet of pipe to be placed downstream of the beaver dam, and under the bridge
Benny directing placement of the pipe through the dam
Benny directing placement of the pipe through the dam
Tom checking for adequate water flow through the pipe
Tom checking for adequate water flow through the downstream end of the pipe
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How to view images: To see larger versions of the thumbnail photos above, click on the thumbnail. If you want to save the image for yourself, simply right click the full size image to obtain the original. Higher quality images are available by contacting our website.  To avoid copyright infringement, reprints must credit the Blue Hills Trail Association, Inc.

Blue Hills Trail

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Washed out culvert presented a big challenge when discovered in late September - located on the trail that connects our East Side trails with our West Side trails. Repair work was completed mid October. Photos show before & after. #bluehillstrailwisconsin #ruskcountywi
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We just completed some bulldozing that will really make our skiers happy this winter. Visit our blog for more photos, video, and the full story: link above in bio⬆️ #bluehillstrailwisconsin #ruskcountywi #skitrailwork
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Taming the tall grasses on the Blue Hills Trail. Hiking & biking conditions are good. Visit our website to see where we’ve been mowing (look at ‘Trail Conditions’ top center of the page). #ruskcountywi #bluehillstrailwisconsin #skitrailwork
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Nice day for a walk in the woods. Pause to appreciate the hidden gems. #bluehillstrailwisconsin #naturegems #springawakening #ruskcountywi
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Crazy is as Crazy does. Had to cross multiple stretches of bare ground to find skiable snow on the East Side Ridgeline yesterday. A laughing fun adventure - shared with the snow fleas. #bluehillstrailwisconsin #snowfleas #snowinthewoods #skiingondirtisbetterthannoskiing #skiingondirt
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Sap’s running. So are my skis. #bluehillstrailwisconsin #springskiing
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What a fantastic week of skiing it was! Celebrate our week long ‘Virtual Birkie Races’ by visiting our blog. Link in bio ⬆️ #bluehillstrailwisconsin #birkiefever #winterwisconsin #wisconsinwinter
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Fresh snow Wednesday morning, fresh grooming Wednesday evening, then Thursday sunshine and temps in the mid thirties. A perfect Bluebird day in the Blue Hills - another memorable day for Virtual Birkie skiers. Congrats to all! #bluehillstrailwisconsin #bluebirdday
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2” fresh snow Sunday evening, then groomed about 3/4 of the trail system Sunday night. Found untouched fresh corduroy this morning. #bluehillstrailwisconsin #freshcorduroy #skitrails #skitrailgrooming #winterwisconsin
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Mighty fine skiing today. Look at all these smiley faces! #bluehillstrailwisconsin #nordicskiing #kidsonskis #winterfun #ruskcountywi #birkiefever2021 #birkiefever
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Classic classic track. Shady Way trail on the East Side. #bluehillstrailwisconsin #birkebeiner #waxmyskis #snowisfun
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Monday sunrise -25 F was coldest day of this otherwise mild winter. Reached zero by mid afternoon when classic skiing was a kick! #bluehillstrailwisconsin #bluehillstrail #colderthanapolarbearstoenails #winterfun #belowzero
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Cold, sunny days. A good time to explore our snowshoe trails. Human rope tows are a FUNctional assist on the steeper hills. Swipe to see a video example. #bluehillstrailwisconsin #wisconsinsnowshoeing #northwoodswisconsin #ruskcounty #subzerofun
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Come ski the Hills! Virtually! The Blue Hills Trail is excited to be a BIRKIE VIRTUAL VENUE PARTNER. We've outlined three separate race routes for our trail system. A snapshot of one of those routes is shown with this post. VISIT OUR BLOG to see the rest of the routes and get the details. Link in Bio ⬆️ #bluehillstrailwisconsin #birkiefever #americanbirkebeiner
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Single digits Fahrenheit. Toko mint grip wax. A classic day on Excelsior Road. #bluehillstrailwisconsin #skiclassic #tokowax #kickwax #wisconsinwinter
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This is the steep straight down/up portion of our trail that connects our East and West Side trails (located between J and K on the West Side). Swipe to see what’s hiding under the snow. Last fall Scott Gudis Sand & Gravel (Bruce, WI) did a great job of replacing a damaged culvert. Thanks to Scott, we can safely ski this hill. #bluehillstrailwisconsin #culvertreplacement #heavyequipmentoperators #brucewisconsin #skiingisfun
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Excelsior Road and West Side trails: THE place to ski yesterday. Fantastic conditions! #bluehillstrailwisconsin #groundhogsday #classicskiing #skateski
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Another day full of smiles at the Blue Hills Trail. Ain’t winter great! #bluehillstrailwisconsin #aintwintergrand #wisconsinwinter #xcskiinglife
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The equipment that grooms our ski trails takes a beating. We recently were again amazed by the capabilities of a nearby machine shop that fabricated a special washer for improving the durability of our Camoplast tracks. Visit our latest blog post to be amazed: link in bio⬆️ #bluehillstrailwisconsin #cphenterprises #waterjetcutting #ruskcountywi
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Gator rescue! Our John Deere Gator suddenly stalled out on a steep hillside a couple days ago. Yesterday we got it running, and were able to move it back to our trailhead before it quit again. Swipe to see the 5 videos showing the rescue. Now it’s time for Dr. Gator. #bluehillstrailwisconsin #gatorrescue #winterchallenges #skitrailgrooming
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Dynamite grooming. Dynamite skiing. Come Ski the Hills! #bluehillstrailwisconsin #bluehillstrail #covidescape #skiforfun #ruskcountywi
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Video shows our groomer looking ahead while setting classic track behind. Swipe for photo of finished results on ‘Excelsior Road’ trail. Nice to see the sun again. #bluehillstrailwisconsin #skitrailgrooming #powdersnow❄️ #foresttherapy #freshcorduroy #fluffypowder
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Rollercoaster Trail at Blue Hills Trail. Built a dozen years ago, anyone can ski it in the uphill direction. Downhill, it’s a bit of a thrill. #bluehillstrailwisconsin #rollercoasters #rollercoasterride #skicrosscountry #funonsnow
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At the Blue Hills Trail, “what goes down, must come up”. Plenty of hills to satisfy your training needs. #bluehillstrailwisconsin #getoutside #cardioworkout #crosscountryskiing #skateskiing
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January 20, 2021. A very good day. #bluehillstrailwisconsin #bluehillstrail #otterslide #fastskis #skinnyskis #ruskcountywi
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Busy Sunday in the Blue Hills. Skate skiing on the ‘Gravel Road’. Classic skiing on the East Side Ridgeline. #bluehillstrailwisconsin #snowislife #skiforfun #wisconsinlife
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Photo shows our trails midday today. Surprisingly firm and skiable despite warm temps and some rain. We’re gonna try grooming this evening. Please be patient, it might take a few days to get yesterday’s new snow up to snuff. #bluehillstrailwisconsin #bluehillstrail #skitrailgrooming #aintwintergrand #heavywetsnow #wegotsnow #winterwisconsin
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A quick lesson in ski trail grooming: With snow headed our way, this was a good day to use our trail compactor to level the high spots and washboard on a few select trails. Should result in a smoother skate deck. #bluehillstrailwisconsin #skitrailgrooming #snowgrooming #skateskiing #skateski #ruskcountywi #bluehillstrail
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Hoar frost / Rime frost topping on the trails today January 12th. Wonderful skiing - do yourself a favor and SKI THE HILLS January 13th - you’ll be happy you did. #bluehillstrailwisconsin #bluehillstrail #foresttherapy #ruskcountywi #getyourvitamind #iloveskiing #escapetothehills #winterinwisconsin
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As Good As It Gets! Two January 10 videos show great skiing on Excelsior Road - Blue Hills Trail in northwest Wisconsin. #bluehillstrailwisconsin #xcclassicski #skiclassic #skateski #asgoodasitgets #januaryinwisconsin #wisconsinwinter
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Another fun day getting my kicks in the Hills. #bluehillstrailwisconsin #xcclassic #xcskier #chasingyourdream
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Not much snow, but our groomers have made the most of it. Two videos showing good skiing on the East Side trails - January 6, 2021. #bluehillstrailwisconsin #januaryinwisconsin #wisconsinlife #wisconsinoutdoors #wisconsinwinter #skateski #ruskcounty
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A ‘Rime Frost’ blue skies sunny day - fun day for skiing the Blue Hills Trail. Pictures are from the West Side of the trail system. Swipe for video taken on the ‘Lollipop’. Trail conditions updated daily at website, link in Bio ⬆️ #bluehillstrailwisconsin #fundayonskis #wisconsinwinter #sunnyski #mansbestfriend🐶 #justenoughsnowforme #justenoughsnowtoski
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Sun burnt off the fog, visitors enjoyed a hoarfrost snowfall on the trails. Great place to socially distance with family & friends! #bluehillstrailwisconsin #sociallydistanceoutdoors #hoarfrost #wevegotsnow #fasterskier #skiwithfriends
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Packed powder skiing on New Year’s Day. Loads of visitors welcomed 2021! Video shows the East/West crossover trail. #bluehillstrailwisconsin #packedpowder #skateski #classicski #welcome2021
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Good skiing through the hoarfrost on New Years Eve day. Get the daily scoop by visiting ‘Trail Conditions’ on our website - link in bio⬆️. Wishing you a happy healthy 2021! #bluehillstrailwisconsin #skinnyski #skinnyskis #crosscountryskiwithkids #xcski
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Excelsior Road (West Side) and The Gravel Road (East Side) were groomed last evening. Skiing this afternoon I was treated to 1” of feathers on top of the fresh grooming! Gonna groom these same trail segments again this evening. #bluehillstrailwisconsin #silentsports #silenceofnature🌳⛅️🗻 #skiingonfeathers #beautyofwinter
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Many of our 20+ miles of ski trails have received initial grooming in the past several days. The best skiing is shown as green highlights on the attached maps. And did you know our West Side trails are dog friendly? Be sure to visit our website where you’ll find ‘TRAIL CONDITIONS’ updated daily: link in Bio ⬆️ #bluehillstrailwisconsin #skijoring #foresttherapy #classicskiing #dogsonsnow
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Christmas in the Blue Hills. Very good skating on Excelsior Road this afternoon; pretty good striding as well. Groomers will be out working again tomorrow. #bluehillstrailwisconsin #christmasski #ruskcounty #skateskiing #skiwithdogs
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After yesterday’s rain, Santa brought snow - enough to start grooming the ski trails! This afternoon we rolled the ‘Gravel Road’ on the East Side trails, and ‘Excelsior Road’ on the West Side. Thanks Santa. #bluehillstrailwisconsin #earlywinterskiing #xcs #xcskiing #skinnyski
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A little more snow and we may be able to do some grooming. Today we moved our workhorse snowmobile to its winter home. #bluehillstrailwisconsin #wisconsinoutdoors #ruskcountywi #weneedsnow #crosscountryskiing
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Lunch time. Even busy beavers need a break now & then. #bluehillstrailwisconsin #busybeaver #busyasabeaver #timber
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Not enough snow to ski the trails. BUT very good skiing on Audie Lake - 2.5 miles northwest of the warming house. Audie is always an enjoyable getaway. #bluehillstrailwisconsin #wisconsinwinter #xcskiingonlakes #xcski #frozenlakes #silenceofnature
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Pictures from our ‘Rabbit Trail’ where bunnies made a fresh appearance on the Blue Hills Trail today. It felt like October today - 48 degrees F - way too warm for December! It’s time to cool down, then Santa needs to bring us some snow. #bluehillstrailwisconsin #whereiswinter #xcskiingwithoutsnow
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Every other year our volunteers replace all the intersection maps. That’s 60 maps, but who’s counting? Combined with excellent signage, it makes it easy to get your bearings on the Blue Hills Trail. #bluehillstrailwisconsin #trailvolunteers #xcskitrails #foresttherapy #findyourselfoutside
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Good hiking in early December. Frost is entering the ground, the ski trails are ready for snow. Photos show the biggest oak tree in the County Forest; hiking on the ‘Far East’ trail; and our Gator doing some trail work on the West Side trails. #bluehillstrailwisconsin #trailwork #hikingwisconsin #weneedsnow
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Big News! Wisconsin's Blue Hills Trail has revised its website, its maps, its blog - and added an Instagram account. Spread the word. VISIT THE BLOG for details – link in bio ⬆️ #bluehillstrailwisconsin #crosscountryskiing #skinnyski #ruskcountywi #ricelakewi #travelwisconsin #tomterrifik
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1.5” big fluffy parachute snowflakes today. Might actually be able to ski on some of our trails — even though the underlying ground isn’t yet frozen. #bluehillstrailwisconsin #winterinwisconsin #crosscountryskiing #xcskiing
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Tight corner. Placed orange driveway markers at the edge. Gotta keep our groomers on track. #bluehillstrailwisconsin
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After unseasonably warm weather in the first week of November, more wintry weather will start to freeze the trails. Hopefully x-country skiing is just around the corner. This photo was taken on the East Side trails - it shows one of our most important bridges. #bluehillstrailwisconsin
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Bridge building in October successfully spanned a small creek that was always a challenge to summertime mowing & wintertime grooming of our ski trails. #bluehillstrailwisconsin
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