HomeMy WebLinkAbout20231596 Ver 1_Dredging Impact Map Update 1-17-2024_20240117Baker, Caroline D
From: Jim Mason <james.mason@threeoaksengineering.com>
Sent: Wednesday, January 17, 2024 1:15 PM
To: Nancy Oberle; Archer, C Alexi CIV USARMY CESAS (USA)
Cc: Capito, Rachel A CIV USARMY CESAW (USA); Hopper, Christopher D CIV USARMY
CESAW (USA); Thomas, Zachary T; Eric Kulz
Subject: [External] RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake
County)
Attachments: Dredging Site Plan Updated (No Wetland Impact) - Revised.pdf
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
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Hello Everyone —
After submitting the revised information, we realized that on the attached file, although the new stockpile location is
included, the old stockpile symbology and temporary crossing information are still included. We had described the
revision in the updated PCN, but had not updated this drawing. We are working to update the E&SC plans and
contractor plans to show the new proposed design. However, we wanted to provided a slightly updated version of the
drawing to note the changes that are being made that are not currently shown. These include:
1) The temporary crossing shown is no longer correct. It is no longer on new alignment and will now be a bridge
over the existing pedestrian bridge. The Submittal #2, Abutment Protection pdf that was provided shows the
temporary crossing that is to be permitted, including proposed perm. impacts resulting from this new design.
2) The rip rap, silt fence, and limits of disturbance still show the originally proposed stockpile area. However, since
then the stockpile has been reduced to eliminate wetland impacts (outlined in red). The rip rap, silt fence, and
limits of disturbance will be revised to match the new stockpile location.
Please let me know if you have any questions or require any additional information.
Thanks and have a great day,
Jim
From: Nancy Oberle <nancy.oberle@threeoaksengineering.com>
Sent: Friday, January 12, 2024 11:38 AM
To: Jim Mason <james. mason @threeoaksengineering.com>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Capito, Rachel A CIV USARMY CESAW (USA) <Rachel.A.Capito@usace.army.mil>; Hopper, Christopher D CIV USARMY
CESAW (USA) <Christopher.D.Hopper@usace.army.miI>; Thomas, Zachary T <zachary.thomas@deq.nc.gov>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Hello All,
Thanks again for taking the time on Monday to discuss this project with us. Jim visited the site and found a small
portion of the wetland could be removed. However, the contractor has decided they can proceed without any
wetland impacts. Please see attached the updated PCN, updated site plans, and the drawings for the stream
crossing. I will also send this information through the DWR portal for official purposes. I can send the updated
wetland figure and photos separately, as the files are large (and I will include them on the portal as well).
Please let me know if there are any other details that I have missed.
Thankyou again,
Nancy
From: Jim Mason <*ames. mason @threeoaksengineering.com>
Sent: Friday, January 5, 2024 4:05 PM
To: Archer, C Alexi CIV USARMY CESAS (USA) <Cristin.A.Archer@usace.army.mil>; Nancy Oberle
<nancy.oberle@threeoaksengineering.com>
Cc: Capito, Rachel A CIV USARMY CESAW (USA) <Rachel.A.Capito@usace.army.mil>; Hopper, Christopher D CIV USARMY
CESAW (USA) <Christopher.D.Hopper@usace.army.mil>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Thank you very much for setting this up. I am also going to add Eric Kulz from the Town of Cary, who can answer any
questions about schedule and logistics.
Thanks and have a great weekend,
Jim
From: Archer, C Alexi CIV USARMY CESAS (USA) <Cristin.A.Archer@usace.army.mil>
Sent: Friday, January 5, 2024 3:46 PM
To: Nancy Oberle <nancy.oberle@threeoaksengineering.com>
Cc: Jim Mason <lames. mason @threeoaksengineering.com>; Capito, Rachel A CIV USARMY CESAW (USA)
<Rachel.A.Capito@usace.army.mil>; Hopper, Christopher D CIV USARMY CESAW (USA)
<Christopher.D.Hopper@usace.army.mil>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
You don't often get email from cristin.a.archer@usace.army.mil. Learn why this is important
Yes, 11 am works for both Chris and I. 1 will send out a teams invite shortly after I send this email.
Alexi Archer
Biologist
SAD Technical Regional Execution Center
U.S. Army Corp of Engineers
100 W Oglethorpe Ave
Savannah, GA 31401-3604
Phone: 912-837-9860
Cristin.A.Archer@usace.army.mil
From: Nancy Oberle <nancy.oberle@threeoaksengineering.com>
Sent: Friday, January 5, 2024 12:23 PM
To: Archer, C Alexi CIV USARMY CESAS (USA) <Cristin.A.Archer@usace.army.mil>
Cc: Jim Mason <lames. mason @threeoaksengineering.com>; Capito, Rachel A CIV USARMY CESAW (USA)
<Rachel.A.Capito@usace.army.mil>; Hopper, Christopher D CIV USARMY CESAW (USA)
<Christopher.D.Hopper@usace.army.mil>
Subject: [Non-DoD Source] Re: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Hi Alexi,
I'm home with a sick kid today. How about early next week? Jim and I are flexible both Monday and Tuesday, other than
a 10 AM meeting Monday morning. Would 11 Monday morning work?
Thanks,
Nancy
On Jan 4, 2024, at 17:01, Archer, C Alexi CIV USARMY CESAS (USA) <Cristin.A.Archer@usace.army.mil>
wrote:
You don't often get email from cristin.a.archer@usace.army.mil. Learn why this is important
Hi Nancy,
Do you have some time tomorrow to discuss the wetland delineation and stream crossing with Chris and
I?
oqLEXL
Alexi Archer
Biologist
SAD Technical Regional Execution Center
U.S. Army Corp of Engineers
100 W Oglethorpe Ave
Savannah, GA 31401-3604
Phone: 912-837-9860
Cristin.A.Archer@usace.army.mil
From: Hopper, Christopher D CIV USARMY CESAW (USA) <Christopher.D.Hopper@usace.army.mil>
Sent: Thursday, January 4, 2024 2:30 PM
To: Nancy Oberle<nancy.oberle@threeoaksengineering.com>; Jim Mason
<lames. mason @threeoaksengineering.com>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Hammond, Swade D CIV USARMY CESAS (USA)
<Swade.D.Hammond@usace.army.mil>; Capito, Rachel A CIV USARMY CESAW (USA)
<Rachel.A.Capito@usace.army.mil>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Thanks for the update, Nancy. We've been discussing internally and intend to reach out soon about the
dredging portion.
Note — I've switched Rachel in for Dave on this thread. As the new Chief he's got a lot on his plate
already.
Christopher. D. Hopper
TREC Team Lead / Wilmington District Liaison
US Army Corps of Engineers Savannah District
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
(919) 588-9153
We would appreciate your feedback on how we are performing our duties. Our automated Customer
Service Survey can be accessed by copying and pasting the following link into your web browser:
https://regulatory.ops.usace.army.mil/customer-service-survey/. Thank you for taking the time to visit
this site and complete the survey.
From: Nancy Oberle<nancy.oberle@threeoaksengineering.com>
Sent: Thursday, January 4, 2024 1:34 PM
To: Jim Mason <lames. mason @threeoaksengineering.com>; Hopper, Christopher D CIV USARMY CESAW
(USA) <Christopher.D.Hopper@usace.army.mil>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Bailey, David E CIV USARMY CESAW (USA)
<David.E.Bailey2@usace.army.mil>; Hammond, Swade D CIV USARMY CESAS (USA)
<Swade.D.Hammond@usace.army.mil>
Subject: [Non-DoD Source] RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake
County)
Hi All,
I wanted to provide the updated information about the proposed crossing that I mentioned in my email
on Tuesday. Please see the attached info from the contractor. In summary, the new impact to the
stream would be a permanent impact, totaling 21 If of stream (previously applied for 38 If of temporary
stream impact). The permanent impacts are due to the instability of the existing bridge and the fact that
the gabions would be left in as permanent support. However, the buffer impact would be eliminated
(previously applied for 3,120 sqft of BZ1 and 2,017 sqft of BZ2), as the approach would be within the
existing approach and would require no tree clearing (see note below that 1-2 trees may be taken down
to the stump).
Below is from the contractor:
"Drawings are on pages 3-5 of the attached document. Sheet 4 prescribes the gabion install for
abutment protection. There will be 7 each 3' X 1' X 6' gabions on each side of the bridge. They will be
roughly 1.5' into the stream at observed regular creek stage. Impact of the gabions themselves per side
is 7 each times 3' long time 6' wide or 126 SF. Round up to 150 SF to 200 SF and include both sides and
you are looking at impacts of 300 to 400 SF. We would recommend that these be permanent as does
your on call structural engineer I believe.
Drawing 5 shows temporary earth pressure shoring for the abutments. All of that work should be on the
bank of the stream. If that is located in the buffer, those impacts would be approximately 200 SF on
each side of the bridge for a total of 400 SF.
Only other impact would be construction of the approach to the bridge on either side. Width of the
road would be approximately 15'. By my calculations, we should be well below the 2,500 SF for
temporary roads.
We will be doing some tree trimming to facilitate installation, but no wholesale tree clearing. May
involve taking a tree or two down to the stump."
Please let us know if you have any further questions or would like to discuss any of this.
Thank you,
Nancy
From: Nancy Oberle
Sent: Tuesday, January 2, 2024 4:15 PM
To: Jim Mason <lames. mason @threeoaksengineering.com>; Hopper, Christopher D CIV USARMY CESAW
(USA) <Christopher.D.Hopper@usace.army.mil>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Bailey, David E CIV USARMY CESAW (USA)
<David.E.Bailey2@usace.army.mil>; Hammond, Swade D CIV USARMY CESAS (USA)
<Swade.D.Hammond@usace.army.mil>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Hi Alexi & Chris,
Please below responses (in green) to the comments that Alexi provided. The Town and the designer
have reworked their plan to reduce the size of the wetland impact from 0.26 acre to 0.05 acre. See
attached updated plan sheets showing the adjusted staging area. As you'll see on the updated plan
sheets, they are also working on avoiding the temporary stream impacts by utilizing the existing
pedestrian bridge. This would require only minor temporary stream impacts and would eliminate the
need for riparian buffer impacts.
Please let us know if any further clarification is needed. As Jim mentioned, we would be happy to have a
call/Teams meeting to discuss any of this with folks.
Thank you and Happy New Year!
Nancy
The disposal site, a lagoon south of the South Cary Wastewater Treatment Plant, is .85 acre
in size. Four acres of sediment (12,400 cubic yards) would be placed there. The application
further states that material would not be placed within 1-foot of the crest of the lagoon's
surrounding dike. Please verify that the lagoon will be capable of receiving all dredged
material. Are secondary disposal locations also being considered?
Based on a conservative estimate of the capacity within the lagoon, leaving one foot of freeboard, there
is sufficient capacity to receive all of the material we are likely to be able to dredge within the time
constraints of this project.
There appear to be significant waters surrounding the lagoon. Have delineations been
conducted in these areas? What measures are proposed to ensure no impact to adjacent
waters results?
All work will be conducted within the footprint of the former lagoon and from high ground areas around
the lagoon. Access is via an existing gravel roadway. The lagoon area and access road are all elevated a
minimum of five feet above all forested and wetland areas, and are part of the operational footprint of
the wastewater treatment facility that has been on the site and operating since the early 1990s.
How will material be moved from the spillway dredge area to the temporary storage area?
The material will dredged using hydraulic methods and pumped into the mechanical dewatering facility.
Once dewatered, the material will be trucked to the disposal area.
4. The application states that alternative lands to the south are residential but Wake County
iMaps documents a large upland forest area is shown owned by GI ETS Regency Woods.
Please detail why these uplands are not usable in lieu of clearing forested wetland for
dredge storage.
The property discussed in the comment is not owned or controlled by the Town of Cary. The project as
proposed is being conducted entirely on land owned by the Town. In addition, this property has
extremely steep topography (see map) and would require extensive grading to be usable as a staging
area. Also, trucks would not be able to negotiate the 90-degree turn that would be required to access
the section of greenway that leads out of the site. In addition, this would necessitate addressing
another pedestrian greenway bridge (installing another temporary bridge that would allow truck traffic).
<i mage001. png>
The application states that live -staking with saplings would occur if required in the future.
Please explain how this requirement would be triggered, when in the future the decision
would be made, and why replacing woody vegetation once complete is not currently
proposed.
The cleared areas will be seeded and strawed to stabilize them after work is complete. The cleared
wetland area will be seeded with wetland seed mix. Cary will replant the site with a mix of hardwood
trees in winter of 2024-2025 (dormant season).
The avoidance and minimization discussion doesn't discuss wetland impacts for dredge
spoil. Please explain why clearing a forested wetland for dredge spoil is required, when the
town owns both the Koka Booth property (uplands), and the existing greenway trail (which
presumably could be temporarily detoured/closed).
Any impacts due to stockpiling of dredge spoil will be temporary. The revised plan shows the proposed
temporary stockpile area has been reduced in size, as has the wetland impacted.
From: Jim Mason<iames. mason @threeoakseniaineerinia.com>
Sent: Tuesday, December 26, 2023 11:44 AM
To: Hopper, Christopher D CIV USARMY CESAW (USA) <Christopher.D.Hopper@usace.army.mil>; Nancy
Oberle <nancy.oberle@threeoaksengineering.com>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Bailey, David E CIV USARMY CESAW (USA)
<David.E.Bailey2@usace.army.mil>; Hammond, Swade D CIV USARMY CESAS (USA)
<Swade.D.Hammond@usace.army.mil>
Subject: Re: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Chris — thank you for the quick response. We will pass along the information regarding permits being
needed prior to starting to the town. We are also working on Alexi's request for additional information.
We hope to have that to you after the holiday week and are happy to have a meeting, either in person
or via Teams, to discuss the project further, if needed.
Thanks and have a great holiday week, Jim
James Mason
Three Oaks Engineering, Inc.
(704)604-8358
From: Hopper, Christopher D CIV USARMY CESAW (USA) <Christopher.D.Hopper@usace.army.mil>
Sent: Friday, December 22, 2023 3:06:46 PM
To: Nancy Oberle <nancy.oberle@threeoaksengineering.com>; Archer, C Alexi CIV USARMY CESAS (USA)
<Cristin.A.Archer@usace.army.mil>
Cc: Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Jim Mason
<lames. mason @threeoaksengineering.com>; Bailey, David E CIV USARMY CESAW (USA)
<David.E.Bailey2@usace.army.mil>; Hammond, Swade D CIV USARMY CESAS (USA)
<Swade.D.Hammond@usace.army.mil>
Subject: RE: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Thank you for the email, Nancy:
The Corps' position on this project is that it does not yet qualify for use of the (any) requested permit.
Avoidance and minimization have not been adequately addressed. We regret the situation your client
finds themselves in, but our process must be completed in advance of any work in waters. Please ensure
they are aware that an after -the -fact permit for work on this project as proposed would be a heavy lift,
and mitigation at a minimum of 2:1 for all impacts associated with the work, and a detailed restoration
plan for disturbed resources, would be considered. As proposed, the project would set a concerning
precedent in our area of responsibility.
Please also convey our commitment to working with them as fairly and expeditiously as possible, within
the limits of our program. We hope they do not choose to proceed knowing that proper authorizations
have not been secured.
Apologies forjumping in, Alexi, but this situation is unique in the TREC's experience.
Christopher. D. Hopper
TREC Team Lead / Wilmington District Liaison
US Army Corps of Engineers Savannah District
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
(919) 588-9153
We would appreciate your feedback on how we are performing our duties. Our automated Customer
Service Survey can be accessed by copying and pasting the following link into your web browser:
https://regulatory.ops.usace.army.mil/customer-service-survey/. Thank you for taking the time to visit
this site and complete the survey.
From: Nancy Oberle<nancy.oberle@threeoaksengineering.com>
Sent: Friday, December 22, 2023 12:52 PM
To: Archer, C Alexi CIV USARMY CESAS (USA)<Cristin.A.Archer@usace.army.mil>
Cc: Hopper, Christopher D CIV USARMY CESAW (USA) <Christopher.D.Hopper@usace.army.mil>;
Thomas, Zachary T <zachary.thomas@deg.nc.gov>; Jim Mason
dames. mason @threeoaksengineering.com>
Subject: [Non-DoD Source] FW: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake
County)
Hi Alexi,
We have received your request for additional information for the subject project. We are coordinating
with the Town of Cary to answer/address all of your questions/comments.
In the meantime, I wanted to make you aware of the information below. I had sent this email thinking
Rachel Capito would be the Corps rep reviewing the permit application. We wanted to get your
feedback on the scheduling issue. Obviously, we will need to address all of the comments you sent
previously before you would provide any sort of approval. Apologies for not getting this information to
you sooner.
Please let us know how you would like us to proceed, and we will go from there.
Thanks so much and Happy Holidays!
Nancy
From: Nancy Oberle
Sent: Tuesday, December 5, 2023 3:50 PM
To: Capito, Rachel A CIV USARMY CESAW (USA)<Rachel.A.Capito@usace.army.mil>
Cc: Jim Mason <*ames. mason @threeoaksengineering.com>
Subject: SAW-2023-01253 (Town of Cary Dredging Project / Cary NC / Wake County)
Ms. Capito,
As you may be aware, we have recently submitted an ePCN for the subject project. The client has
informed us that, due to the finances of the project, the project will be let for bid in the near future. This
means that construction work may need to begin before you have had time to issue the permit. We are
wondering if we could get your general approval for the impacts as they are presented. Alternatively, we
could ask for the permit to be issued as an after -the -fact.
Please let us know how you would like us to proceed given this new information.
Thank you,
Nancy
Nancy Scott Oberle
Three Oaks Engineering
324 Blackwell Street, Suite 1200
Durham, NC 27701
919-732-1300 - office
919-900-6535 - direct
nancy.oberle@threeoaksengineering.com
www.threeoaksengineering.com
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