Raleigh Nature

June 18, 2009

News, Notes and Another Promise

The Natural View

The Natural View

Why I have posted just once a month for 3 months:

Best reason – my new column on nature and environment at Raleigh Public Record.

Very good one: I have been documenting The Bain Project, posting like a madman at Raleigh Rambles.  The Bain Water Treatment Plant has plenty of relevance for Raleigh Nature, as it used nature’s own filtering process – gradations of rock and sand – to clean water drawn from Lakes Raleigh, Johnson, Benson, and Wheeler.  It and the more ancient pumping  station which served as the city’s first water facility sit beside Walnut Creek (more about Walnut Creek below).  Just behind the Bain facility is a wonderful greenway deck that traverses wetlands strewn with swamp mallow,  huge white blooms that startle in a sea of southern green.

Raleigh Naturalist at Bain

Raleigh Naturalist presents at Bain

 Good news: I have more time now, being a teacher, and I also hope to bring Raleigh Nature readers some neat photos from our anniversary weekend in Charleston and our upcoming trip to Bar Harbor and Mount Desert Island.  My promise is at the end of the post.

Walnut Creek greenway at Rose Lane

Walnut Creek greenway at Rose Lane

Lots of happenings around the greenways.  The section that follows Walnut Creek  parallel to Poole Road got flooded Tuesday June 16, along with Rose Lane and other roads near the creek.  The NandO story about the flooding was being followed up the next day by Josh Shaffer, who I met walking Rose Lane when I went to photograph the high water on the greenway. He was hoping to chat with some of the folks who are stranded by high water once every year or so at this dead-end extension of Rose Lane across the creek. I remember quite well my teenage years when Rose Lane dead-ended into a meadow well short of the creek, because we used to drive down there to park in what seemed like deep country in the sixties. Whoever decided to build houses past a perennial wetland with no outlet is the real problem, but the curent residents are facing the consequences.   Josh covers lots of interesting stuff for Nando, from Legos to beloved beer slingers to taking small children to play in cemeteries.  His recent story on kayaking Crabtree Creek   really struck a chord, with its realistic description of the grit, mud and smells encountered on the creek, but I prefer the much quieter section of Crabtree above Lassiter Mill for canoe jaunts.  Getting back to poor Walnut Creek, the heavy rains that caused flooding also sent 15,000 gallons of untreated sewage into the creek upstream in Cary, but the Nando story said no fish kills had been reported.

sliders at Yates Mill_1_1

Newsflash from NandO:  the 4 inches or so of rain also did damage at Yates Mill Pond, pictured above, which has temporarily closed the millsite and trails. Repairs are expected soon.

Lonnie Poole golf course_1_1  The new Lonnie Poole Golf Course around Lake Raleigh is mostly finished and expected to open in July. I posted dismal views and comments about this project in February 08, but when I stopped by recently I felt a little better.  There are lots of wooded buffers, especially next to Walnut Creek, and I must admit the course is looking pretty.

Raleigh skyline from Poole Golf Course

Raleigh skyline from Poole Golf Course

The Fletcher Park water garden is being fine tuned.  Apparently the water level, though quite low down in the retention ponds, was too high for some of the plantings, so a crew came in and extended a kind of penisula of land into the lowest pool, as you can see below.  The crew that explained this to me were taking survey sightings to appraise the work that had been done.  Many of the original plantings had been shifted to higher ground.

new Fletcher peninsula_1_1

The ponds still look pretty muddy to me, but I know time will do wonders. They had an opinion on one item that had been bugging me since the NandO article – springs.  There are no active springs in Fletcher Park, just surface water from the neighborhoods and seep from the ball fields.  Fletcher Park’s lilies are in full bloom!

Fletcher lilies_1_1

There!  All the nature news fit to post.  I can’t promise any certain frequency of posts, but I promise to stay totally committed to getting fresh postings up about nature and wildlife inside or near the beltline.  See you on the greenways!

May 18, 2009

Grassy Branch Sees Daylight

Pigeon House culvert_1_1

Many waterways in Raleigh travel unseen, as does Pigeon House Branch above.  Recent years have seen efforts to rehabilitate – uncover and often “un-straighten” – creeks.  The process is called daylighting.  It helps with flood control and improves the ecosystem.  It happened in Northeast Raleigh last year, and it’s set to happen for Rocky Branch on the NCSU campus(pdf).  So Raleigh has recognized the process as valuable, but it is still an unusual occurrence.  For one Oakwood resident, stymied in efforts to have the city uncover his backyard branch, the benefits were worth the huge personal effort of unearthing the waterway himself by hand.

Grassy Branch in Oakwood

Grassy Branch in Oakwood

Chris Crew is a longtime Oakwood resident who co-authored the wonderful Oakwood nature essay I recently featured.  He lives on Elm Street, almost at the bottom of Oakwood’s slope.  Grassy Branch is a small but steady flow that passes under Elm Street and edges his backyard. Until a couple of years ago, it passed unseen in a large buried pipe.

Chris's side yard_1_1

Chris learned of the city daylighting program and tried to get Grassy Branch uncovered.  During heavy rains, the water backed up and even spouted out vertically from broken places in the pipes.  The city couldn’t or wouldn’t do the work because other contiguous neighbors would not enlist their properties.  Tired of the geysers and wanting a healthier backyard creek, Chris decided to do the job himself.  So he and his family hand-dug and wenched out two sections of the 42 inch pipes.

Grassy Branch re-exposed below Elm Street

Grassy Branch re-exposed below Elm Street

I don’t have pictures of “the dig” – I just heard about Chris’ project recently.  But there is one more section he can remove before Grassy Branch crosses his property line.  I’m hoping he’ll invite me to help, and I’ll be sure to let you know how it goes!

Grassy Branch re-enters pipe

Grassy Branch re-enters pipe

****************

Both Pigeon House and Rocky Branch involve daylighting projects that have or will be addressed in other posts.  An interesting neighborhood daylighting project finished up a couple of years ago near my school, the Fletcher Academy.  The picture below shows the view my students and I have on nature walks at the bottom of Cedar Hills Rotary Park. Three years ago we were looking at the creek disappear into a large pipe.

former pipe entrance for Big Branch_1_1

Today, the adjoining houses have less to fear from flooding, and the biological and geologic interactions missing from pipe existence have been restored to the creek.  One slightly bizarre feature of the project was the city’s purchase and destruction of a house on Mapleridge which sat practically on top of the creek.

site of former house at Big Branch

site of former house at Big Branch

  Big Branch daylighting project_1_1   Big Branch above Mapleridge_1_1   Big Branch re-exposed below Mapleridge_1_1

 

March 19, 2009

Look down, look closely, at Spring’s lovely weeds

Filed under: Central Raleigh, Gems & Surprises, Nature Lore — Tags: — raleighnaturalist @ 2:17 am

 wildflowers-and-dandelion

   Weeds are just plants someone thinks are out of place.  As the season arrives, we can all get some pleasure from these signs of a diverse ecosystem  in your yard.  Take the time to look down and closely!

snowflakes, an early bulbous wildflower

snowdrops, an early bulbous wildflower

 

snowflake-patch_1_1

 

blue-wildflowers_1_1

February 6, 2009

Pigeon House Branch Part 2

heron-on-rock-outcrop_1_1

     In our previous post, we began with the hidden headwaters of Pigeon House under Cameron Village, and followed it through the the Park Avenue  neighborhood and down West Johnson Street to Peace Street, with a reach-out to Capital at Wake Forest, where the heron above (remember all pictures should click to enlarge) found a rocky spot of wilderness.  This post backs up to Devereux Meadows and follows Pigeon House Branch down to its intersection with Crabtree Creek. An unhappy course, for the most part. The city is trying to rehabilitate it, one tributary at a time. Below is the map of their plan.

pigeon-house-plan-map_1_1

     Pigeon House Branch drains the northwestern quadrant of downtown, gathering water east of the Oberlin Road ridge, bringing it through a series of open stone culverts through the Park Drive neighborhood.  At St. Mary’s Street it enters the Glenwood South business district and is piped under the roads and railroads tracks and down to Devereux Meadows.   The dark blue line is where they want to uncover the creek, and the brown area is where the city wants to create a “Riverwalk”  at Devereux Meadows.  Below we see the creek as it begins its path through this area.

     Pigeon House Branch is under there somewhere!  The creek escapes out a large pipe and continues down between West Street and Capital Boulevard.  About here is where the 42 inch pipe pictured below delivers all the water collected from Fletcher Park and its $700,000 water park!

     Pigeon House crosses back and forth across Capital Boulevard, traveling through wide manmade ditches covered with kudzu.  The water passes over the heron’s rock outcrop and turns northeast.  It dives under Capital yet again and emerges at Watkin’s Grill, a venerable blue-collar breakfast joint at Old Louisburg Road and Atlantic Ave.  Traveling between the north and southbound lanes of Capital, it accepts the water from off the Blount St. ridge (Mordecai to Oakwood), and makes its way through successive parking lots, including Johnny’s Motel, Dunkin’ Donuts, The Foxy Lady and the bowling alley for over a mile, before turning east at Crabtree Boulevard.  Here Pigeon House lends its seepage to a small marsh between it and Crabtree Creek.  It feeds into Crabtree at Raleigh Boulevard, its mouth visible from its bridge over Crabtree as well as the nearby greenway deck.

Pigeon House Branch enters Crabtree Creek

     Pigeon House is decidedly urban and yet makes its way through former waste lowlands turned into thoroughfares, so its riparian buffer is actually less stressed for space than many other creeks in Raleigh.  Thus the heron, thus the opportunity for a high-end greenway at the site where I watched many a minor league baseball game.  Much hope can be found for success with the city’s project to rehabilitate Pigeon House Branch.

pdf. Pigeon House Plan

Pigeon House Part 2 photo album

This is a thorough sequence from Devereux Meadows to Crabtree Creek.

February 5, 2009

Midwinter Beech Luminaries

Filed under: Central Raleigh, Nature Lore — Tags: , — raleighnaturalist @ 1:29 am

     At the easternmost tip of Raleigh’s greenways, Buckeye Trail at Milburnie Road, the young beeches, which keep their old leaves through the winter, look like luminaries spread through the flat lowland off this section of greenway. These pictures don’t really capture the effect – I’ll keep trying!

   This is close to the right time of day – right before dusk – and the dead of winter, but the eery quality involves the depth of their scattered penetration, evenly, through the slightly older but teenage pines…. and the perfectly flat lowland which nestles under Rollingwood where LongView Creek finds Crabtree.

     Midwinter is a great time to explore OFF the greenway, at least for poison ivy abhorrers like me.  The sewer cuts and fishing paths are available, and at this east end of Buckeye, the big beeches on the creek slopes have laid out startling off-white saplings to lighten up the dark winter texture of the woods.

January 15, 2009

Fletcher Park Meets Top and Bottom

Filed under: Central Raleigh, Greenways & Parks, green initiatives — Tags: , , — raleighnaturalist @ 2:43 am

   Fletcher Park’s new water garden has been finished, as well documented in a News and Observer article by Tommy Goldsmith.  Mr Goldsmith kindly quotes me about the site:

John Dancy-Jones, a science teacher at Fletcher Academy, has been keeping up with the water garden on his blog at www.raleighnature.com.

“The greenway path beside the water winds around and unifies what used to seem like a very bifurcated setting,” of the park’s upper and lower levels, Dancy-Jones said.

     The purpose of the water garden is to slow and filter the water being drained into Pigeon House Branch, down the hill at Capital Boulevard.  Mr. Goldsmith did not quote me on my main reservation about the project, which is that our notoriously low water flow periods might render the ponds stagnant and perhaps slow to fill in the first place.  He stated in a phone conversation that  several springs had been discovered during the course of construction.  I have high hopes for this water garden , but the photo below seems to show seeps rather than springs in the highest portion of the water garden proper.

    What Mr. Goldsmith does do is start his article with a wonderfully appropriate joke about residents of a new $710,00 residence (the mallards in the largest, lowest pond).  Ironically appropriate because the need for this system, paid with mostly state and EPA funds, was created by the dense, impermeable developments right across the street from the park.  But if the designers accomplish their goal – a balanced wetwater ecosystem with rich food chains that keep down mosquitoes, then Fletcher Park can become a gem that represents a small scale model of what will probably happen in the end at Dix: development, and compensation for it that provides valuable amenities for all.  The N&O article cites science evidence that the system is already benefiting Pigeon House Branch, and that waterway needs all the help it can get.

Above, the expeditious mallards. Below, looking toward Glenwood.

Photo tour of finished water garden

 previous posts on Fletcher Park:

September 3rd, 2008

March 23, 2008

 

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