HomeMy WebLinkAbout20081218 Ver 1_More Info Received_20081216ftWI<
WDICKSON
community infrastructure consultants
December 15, 2008
Division of Water Quality D ?2 I
401/Wetlands Unit
1650 Mail Service Center DEC 1 6 208
Raleigh, NC 27699-1650
DENR ° ST?ORM?VA ER 9RANCH
ATTN: Robert Krebs WETLANDS AND
RE: Revised Plans for Tate Boulevard Access New Research Park
DWQ Project #08-1218
Dear Mr. Krebs:
I am submitting the enclosed revised plans on behalf of my client CCF Associates I, LP
& Whitener. The plans and reports include the following revised information based upon
comments we received from your office dated September 30, 2008:
1. The plans have been revised to reduce and minimize the impacts to the
drainageway. The culvert length has been reduced, headwalls have been
added, and the energy dissipater has been reduced and designed to utilized
natural stone cobbles.
2. The energy dissipater is now specified to be embedded in the channel bottom
without matting.
3. The impacts page of the application has been revised as requested.
4. We respectfully disagree with DWQ on the intent of the first phase of this
project. The proposed improvements are for an access driveway and not an
access road. No rights-of-way are proposed; therefore the project area divided
by the total tract area (0.97acres /15.4 acres) indicates that only 6.3% of the
site will be developed at this time. This should be considered "low density"
and currently qualifies for the exemption from the SMP.
5. By definition the project is exempt from the SMP. A SMP will be prepared
when further development of the site is proposed.
6. A conceptual SMP for the entire site is impractical at this time since the actual
site layout and future use of the site is unknown at this time. During these
difficult economic times it is quite understandable that one would not want to
invest in services that are based upon a sketch plan and not an actual proposed
layout of the site.
401 4th Str;,, ,, 51'J
Suil" )01
Hic:orv, NC 't 0 0
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Tidn,?portahon . Water Re.sourcos , Urb,in Dt,velopmeni GFOtllatiC
Thank you for your understanding in this matter. Please contact me if you have further
questions or comments.
Sincerely,
Jeffrey J. Swartz, PE, LEED AP
Cc: John Fuller, Esquire
Michael Whitener
M:\Projects\Whitner-Fuller\8009200HI\Documents\A_General Corresp\DWQ-12-15-08.doc
Office Use Only: Form Version March 05
USACE Action ID No. DWQ No.
k . ai,y.paL ticuim iLciu is nut appucaoie to is project, please enter "Not Applicable" or. "N/A".)
I, Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP #14 & GC3704
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: M
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information D ?J Lz a V lg I
1. Owner/Applicant Information DEC 1 6 2008
Name: CCF Associates I LP & Whitener
Mailing Address: 352 2nd Streets NW ? pS MD$TORMWATERBRANCH
Hickory. NC 28601
Telephone Number: (828) 324-2920 Fax Number: (828) 324-2921
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Jeff Swartz
Company Affiliation: WK Dickson
Mailing Address: 401 4th Street SW Suite 201
Hickory, NC 28602
Telephone Number: (828) 327-6911 Fax Number: (828) 327-9164
Updated 11/1/2005
Page 5 of 13
E-mail Address: iswartz@wkdickson.com
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads: Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included: If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Tate Boulevard Access for New Research Park
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN): (3722-14-44-9561)&(3722-14-44-5073)
4. Location
County: Catawba Nearest Town:_ Hickory
Subdivision name (include phase/lot number): NA
Directions to site (include road numbers/names, landmarks, etc.): 1-40 West to Fairgrove
Church Road, go about a mile and turn left onto Tate Boulevard SE (SR 1692) The site is
about a mile and a half on the left.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 1.98825 ON 3.648572 °E
6. Property size (acres): 15.41
7. Name of nearest receiving body of water: Miller Branch
8. River Basin: Catawba
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/ma-ps/.)
Updated 11/1/2005
Page 6 of 13
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site consists primarily of vacant wooded land and is
adiacent to Tate Boulevard. The land use in the vicinity is predominately commercial and
industrial. The site is zoned for industrial use.
10. Describe the overall project in detail, including the type of equipment to be used: The
proposed project involves the installation of a new culvert for an access driveway off of Tate
Boulevard: A new access driveway for a new research park is being built to cross over the.
stream which will involve the installation of a new culvert.
11. Explain the purpose of the proposed work: To install a new 96" RCP culvert in order for a
new driveway to be built for a new research park The proposed project will provide access
to a proposed research park.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. Copies of the erosion control plan are included with the submission
proposed earth disturbance is less than one acres) Also attached to the narrative is a cop of the
USACEO General Permit Authorization.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No future permits are anticipated for the access drivewayor proposed research park
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
Updated 11/1/2005
Page 7 of 13
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
Provide a written description of the proposed impacts: A narrative has been provided
with this PCN to describe the proposed] m acts of the ro'ect.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both struehire nrid finnrlinv
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
(yes/no) Distance to
Nearest
Stream
(linear feet) Area of
Impact
(acres)
1 Driveway fill. Forested Yes Adjacent 0.03
Total Wetland Impact (acres) 0.03
3. List the total acreage (estimated) of all existing wetlands on the property: 0.11
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Stream Impact
Number
(indicate on ma
1
Stream Name
UT to Miller
Branch
Type of Impact
ulvert installation
Perennial or
Intermittent?
Perennial Average
Stream Width
Before Impact
15 Impact
Length
(linear feet
84 Area of
Impact
(acres)
0.02
Total Stream Impact (by length and acreage) ± :5E ±0702
Updated 11/1/2005
Page 8 of 13
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to.
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact
Site Number
(indicate on ma Name of Waterbody
(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc. Area of
Impact
(acres)
NA NA NA NA NA
Total Open Water Impact (acres)
6. List the cumulative impact to all Waters of the IT-Q, _ recnltina frnm tha nrr%;art-
Stream Impact (acres): 0.02
Wetland Impact (acres): 0.03
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.05
Total Stream Impact (linear feet): 84
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
NA
Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): NA
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): NA
Current land use in the vicinity of the pond: NA
Size of watershed draining to pond: NA Expected pond surface area: NA
VII. Impact Justification (Avoidance and Minimization)
Updated 11/1/2005
Page 9 of 13
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such.as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. All impacts to waters- of the
U.S, have been avoided and minimized to the maximum extent practicable The attached project
narrative describes avoidance and minimization in detail. All conditions of NWP 14 and
GC3704 will be satisfied to further minimize impacts.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina (see DWQ website for most current
version.).
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Compensatory mitigation is not proposed for this project The project design minimizes
impacts to waters of the US such that less than 150 feet of intermittent stream is impacted
Updated 11/1/2005
Page 10 of 13
In addition, strict erosion control. during construction will further minimize water quality
impacts.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
(919) 715-0476 to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at htt-o://www.nceep.net/pages/inlieureplace.htm. If use of the NCEEP is proposed,
please check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): NA
Amount of buffer mitigation requested (square feet): NA
Amount of Riparian wetland mitigation requested (acres): NA
Amount of Non-riparian wetland mitigation requested (acres): NA
Amount of Coastal wetland mitigation requested (acres): NA
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at (919) 733-5083 to review current thresholds for environmental documentation.
Yes ? No
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
Updated 11/1/2005
Page 11 of 13
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ? No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the. required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet Multiplier Required
Mitigation
1 3 (2 for Catawba)
2 1.5
Total
- cone i extenas out Su feet perpenmcular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or.0244, or.0260. NA
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. The access driveway project does not exceed
20% impervious acreage. The proposed research park will include stormwater planning at a later
date.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
NA
XIII. Violations (required by DWQ)
Updated 11/1/2005
Page 12 of 13
Yes ? No
XIV.
Is this an after-the-fact permit application? Yes ? No
Cumulative Impacts (required by DWQ)
Will this project (based on. past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
httn://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: The
initial development of the ro'ect will involve the installation of a culvert fora ro osed research
park. New development and associated water quality impacts are likely to occur in the
watershed regardless of the status of the proposed project. Excess nutrients and pollutants in
stormwater runoff ma cause localized eutro hication and sedimentation. Increased peak. flows
ma also destabilize some stream channels. Local miti ative measures to control adverse
impacts of new dP.vP.1O--+ +n +or , ,
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
?
(CAI -1 F As6e;r,
Applicant/Agent's Signature Date
Agent's signature is valid only if an authorization letter from the applicant is provided.)
Updated 11/1/2005
Page 13 of 13
PRE-CONSTRUCTION NOTIFICATION
NATIONWIDE PERMIT 14
PROPOSED TATE BOULEVARD CULVERT INSTALLATION
UT TO MILLER BRANCH DRAINAGE BASIN
CATAWBA COUNTY, NORTH CAROLINA
REVISED PROJECT NARRATIVE p ?? J
DEC,' 1 b 2008
DENR - WAi EN QuAL 1 .
Introduction WETLANDS AND STORMWAMR' bkkl t M
The Tate Boulevard culvert installation is part of a plan to develop a research
park in the central portion of Hickory (Figure 1). Completion of this project
would affect areas under U.S. Army Corps of Engineers (USACE) jurisdiction,
specifically 84 linear feet of stream for culvert installation. These are
unavoidable and required to provide channel stability and hydraulic function.
Site Location and Description .
The unnamed tributary (UT) to Miller Branch drains approximately 0.29 miz
from Highland Avenue south to the confluence with Miller Branch. The
unnamed tributary discharges to Miller Branch which flows into Clark Creek.
The site consists primarily of vacant wooded land and is adjacent to Tate
Boulevard. The land use in the vicinity is predominately commercial and
industrial. The site is zoned for industrial use.
Design constraints for the Tate Boulevard culvert crossing include large trees
upstream and downstream of the culvert along the channel banks. The latitude
and longitude coordinates are 1.98825N 3.648572E.
The topography on the property consists of moderately sloping terrain. The
UT flows from north to south under Tate Boulevard. The project area
generally drains to the south, away from Tate Boulevard, eventually draining
into Miller Branch. The site is located in the Catawba river basin (HUC
03050102).
Proposed Culvert Installation for Tate Boulevard Access Page 2
Jurisdictional Waters/Wetlands of the U.S.
Streams: One perennial stream (as described by a NCDWQ representative) is
located in the central portion of the project area. This stream is a.tributary to
Miller Branch and is unnamed on the property boundary survey. The channel is
typically fifteen feet wide. Wetlands are present in the project area and are only
slightly impacted by the culvert installation. Approximately 900 square feet of
in channel wetland impact and 460 square feet of out of channel wetland
impact for a total impact of 1,360 square feet or 0.03 acres. The impact is
caused primarily by the culvert and the road fill directly over the culvert.
Avoidance and Minimization
Due to stream location, access considerations, and project requirements,
impacts to streams are unavoidable. The proposed culvert will be installed with
a headwall and an endwall to minimize the impacts to the stream and wetlands
The roadway width and fill slopes have been minimized while still fulfilling
geometry and traffic considerations. Stream disturbance width will be
minimized and all conditions of NWP 14 will be complied with. The final site
plan is the most practicable configuration in that it allows a usable yield of land
area while carefully configuring and placing infrastructure, utility lines, and
roads to minimize stream impact.
Jurisdictional Impacts
The total area of jurisdictional waters of the U.S. to be impacted by the
proposed culvert installation project is 84 linear feet (0.02 acres) of stream fill
(Figure 2).
The stream fill is generated by a road crossing necessary to access the site.
The impact is required due to geometry constraints for the culvert installation
accessing the Tate Boulevard ROW and is located adjacent to the stream fill.
The amount of fill was minimized by the proposed cast-in-place headwall and
endwall.
Best Management Practices
Prior to the beginning of any construction activities, the applicant will
implement Best Management Practices (BMP's) to minimize erosion and
Proposed Culvert Installation for Tate Boulevard Access Page 3
migration of sediments into affected waterways (streams and wetlands) during
the construction phase. Since the total earth disturbance for this project is less
than one acre, review and permitting are not required. at this time.. However, a.
detailed Erosion Control Plan has been developed and is included with this
submission. It includes.appropriate erosion and siltation control devices placed
between the construction area and adjacent waterways. These devices include
the use of mulches, check dams, silt fences, or other devices capable. of
preventing erosion and migration of sediments. Monitoring of BMP's will take
place in accordance with the requirements of the North Carolina for
construction activity to assure that the erosion and sediment control devices
are installed properly and maintained in a functioning condition.
Compensatory Mitigation
Compensatory mitigation is not proposed for this project. The project design
minimizes impacts to waters of the US such that less than 150 feet of
intermittent stream is impacted. In addition, strict erosion control during
construction will further minimize water quality impacts.
Riparian and Watershed Buffers
Impacts to the riparian buffer will be minimal with only the removal of some
small trees along the stream banks and in the vicinity of the culvert installation.
The trees that are removed will be replaced and the buffer replanted with
appropriate native species. The culvert installation at Tate Boulevard does not
result in an increase in impervious surfaces. There are no stream buffer rules
in effect in the project area.
Floodplain Encroachment
The proposed project will not encroach upon the 100-year floodplain and is not
in a flood hazard area.
Threatened and Endangered Species
Table 1 below lists threatened and endangered species in Catawba County. No
protected species or suitable habitat was observed in the project area. The
proposed project is not likely to adversely affect any protected species.
Proposed Culvert Installation for Tate Boulevard Access
Table 1. Threatened and endangered snPriPC in nrniart araa
Page 4
Common Name Scientific Name Federal Status Record Status
Vertebrates
Bald Eagle Haliaeetus leucoce halus BGPA Current
Invertebrates
Catawba crayfish
ostracod
Dact loc there isabelae
FSC
Current
Vascular Plants
Dwarf-flowered
heartleaf
Hexast lis naniflora
T
Current
Sweet Pinesa Monotropsis odorata FSC Current
Cuthbert's Turtlehead Chelone cuthbertii FSC Current
current record-the species has been observed in the county within the last 50 years
Historic record-the species was last observed in the county more than 50 years ago
Obscure record-the date and/or location of observation is uncertain
Cultural and Historical Resources
A database search of National Register of Historic Properties indicated no listed
historic properties in the project vicinity. Additionally, a site visit determined
that no existing structures will be impacted by the proposed project.
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action ID. SAW-2008-02322-318 County: Catawba USGS Quad: Hickory
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property Owner / Authorized Agent: CCF Associates I, LP & Whitener
Address: 352 2nd Street, NW
Hickory, NC 28601
Telephone No.:
Size and location of property (water body, road name/number, town, etc.): Tate Boulevard Access for
New Research Park project located off of Tate Boulevard; in Hickorv
Description of projects area and activity: This permit authorizes construction of a new road on a UT-
Miller Branch which will impact 120 LF of stream channel
Applicable Law: BSI Section 404 (Clean Water Act, 33 USC 1344)
? Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Regional General Permit Number:
Nationwide Permit Number: 14
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the
attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your
submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide authorization
is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide permit
authorization is reissued and/or modified, this verification will remain valid until the expiration date identified
below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit
authorization expires or is suspended, revoked, or is modified, such that the activity would no longer comply with
the terms and conditions of the nationwide permit, activities which have commenced (i.e., are under construction) or
are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity
is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation,
unless discretionary authority has been exercised on a case-by-case basis to modify, suspend or revoke the
authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality
Certification. You should contact the NC Division of Water Quality (telephone (919) 733-1786) to determine
Section 401. requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area
Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal Management.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other
required Federal, State or local approvals/permits.
If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of
Engineers regulatory program, please contact Steve Chapin at 828-271-7980.
Corps Regulatory Official Steve Chain Date: August 27, 2008
Expiration Date of Verification: August 27, 2010
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the attached customer Satisfaction Survey or visit
ll!!p://www.saw.usace.anny.mil/WETLANDS/index.html to complete the survey online.
Determination of Jurisdiction:
A. ? Based.on preliminary information, there appear to be waters of the US including wetlands within the above
described project area. This preliminary determination is not an appealable action under the Regulatory
Program Administrative Appeal Process ( Reference 33 CFR Part 331).
B.? 'There are Navigable Waters of the United States within the above described project area subject to the
permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act.
Unless there is a change in the law or our published regulations, this determination may be relied upon for a
period not to exceed five years from the date of this notification.
C. ® There are waters of the US and/or wetlands within the above described project area subject to the permit
requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the
law or our published regulations, this determination may be relied upon for a period not to exceed five years
from the date of this notification.
D. ? The jurisdictional areas within the above described project area have been identified under a previous action.
Please reference jurisdictional determination issued _. Action ID
Basis of Jurisdictional Determination: The site contains a stream channels that exhibit indicators of ordinary high
water marks. The stream channel on the property is an unnamed tributary to Miller Branch which flows into the
Catawba River and ultimately flows to the Atlantic Ocean through the Miller Branch>Clark Creek>South Fork
River>Catawba River sytem which is a Section 10 navigable-in-fact waterway at Lake Wylie.
Appeals Information: (This information does not apply to preliminary determinations as indicated by paragraph A.
above).
Attached to this verification is an approved jurisdictional determination. If you are not in agreement with that
approved jurisdictional determination, you can make an administrative appeal under 33 CFR 331. Enclosed you will
find a Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal
this determination you must submit a completed RFA form to the following address:
District Engineer, Wilmington Regulatory Program
Attn: Steve Chapin, Project Manager
151 Patton Avenue, Room 208
Asheville, North Carolina 28801
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the
criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of
the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address within 60
days from the Issue Date below.
**It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this
correspondence.**
Corps Regulatory Official: Steve Chapin
Issue Date: August 27, 2008
Expiration Date: Five years from Issue Date
SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORMS, PROJECT PLANS, ETC.,
MUST BE ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
Copy Furnished:
WK Dickson (Jeffrey Schwartz)
90NV89 y3jyMV bojS ONV S0NV119M
A141V(li7 lj 1],W - bN30
8002 9 t J30
9 v?
SUPPORTING DOCUMENTS
FOR
PROPOSED DRIVEWAY ACCESS
ONTO TATE BOULEVARD
HICKORY, NORTH CAROLINA
JULY 28, 2008
REVISED SEPTEMBER 19, 2008
WKD# 80092.00.1-11
PREPARED BY:
WK DICKSON & CO., INC.
401 4TH STREET, SW
SUITE 201
HICKORY, NC 28602
i
STORMWATER ANALYSIS
FOR.
PROPOSED DRIVEWAY ACCESS ONTO TATE BOULEVARD
CITY OF HICKORY, NORTH, CAROLINA
This report contains a stormwater analysis of the stormwater conveyance system as
part of the proposed access drive onto Tate Boulevard. The project is located within
Catawba County and within the City of Hickory's ETJ. Runoff from on and off site is
intercepted by the proposed driveway access onto Tate Boulevard. Adequate
stormwater conveyance facilities are necessary to direct the runoff in a non-erosive
manner. The project in located in the watershed of an unnamed tributary of the Miller
Branch of Clark Creek. The proposed earth disturbance for the construction of the
proposed access drive is 0.98 acres.
The Rational Method was used to determine the peak flows for the 10 year storm
event. The runoff coefficient "c" number was based on assumed future development
conditions and soil map data. The soil is predominantly from hydrologic soil group
"B". A 5 minute time-of-concentration (Tc) was assumed since the site will most likely
be developed as an industrial / commercial park. The amount of impervious cover
assumed in the analysis was also generous to insure adequate capacity in the proposed
storm sewer systems. Rainfall data for the intensity-duration-factor was obtained
from existing data for Hickory FAA Airport, North Carolina from NOAA Atlas 14.
A post development analysis was performed of the drainage areas contributing to the
proposed stormwater conveyance facilities from the site and upslope property. The
point of analyses included a proposed storm sewer at the entrance of the driveway
onto Tate Boulevard and a proposed storm sewer located within a driveway which
extends to the western portion of the property.
AS
M:\Projects\Whitner-Fuller\8009200HI\Documents\G_Design Calculations\RoadDrainageReport7-28-08.doc
EROSION CONTROL NARRATIVE
FOR
PROPOSED SITE ACCESS ON TO TATE BOULEVARD
HICKORY, NORTH CAROLINA
PURPOSE OF DEVELOPMENT
The purpose of the project is to a construct approximately 625 linear feet of
site access drives with related grading, drainage, erosion control measures and
paving. The project is located within the City of Hickory's ETJ, on Tate
Boulevard, west of Fairgrove Church Road. Approximately 0.98 acres will be
disturbed during the construction period. The project is located in Catawba
County, North Carolina.
The project will include clearing, grubbing, grading, installation of erosion
control measures, and seeding and grassing.
SITE CONDITIONS
The site consists primarily of vacant wooded land and is adjacent to Tate
Boulevard. The land use in the vicinity is predominately commercial and
industrial. The site is zoned for industrial use. Soils are primarily Hiawassee -
Cecil and hydrological group B & C.
All work is within the existing property boundaries and NC DOT right-of-ways.
PROPOSED EROSION /SEDIMENT CONTROL MEASURES
The North Carolina Erosion and Sediment Control Planning and Design Manual
was used as the primary reference for the subject project. Temporary and
permanent erosion control measures will include, but not limited to, check
dams, riprap, inlet protection, diversion ditches and vegetative stabilization
(See plans).
The project i.s primarily designed to provide driveway access to two future
commercial /industrial sites. The contractor will be required to follow
construction sequence:
1) Obtain erosion control permit from. DENR (if earth disturbance exceeds
one acre)
2) Obtain driveway permit from NC DOT
3) Install temporary construction entrance
4) Begin clearing areas as required to install temporary erosion control
measures. Install filter fence and diversion ditches with check dams.
5) Continue clearing / grubbing remainder of construction area upslope
of erosion control devices
6) Install toe ditch at base of driveway fill section (West Drive) with silt
fence
7) Install proposed 96" diameter creek culvert with cast-in-past
headwall, endwall and wingwalls. Low impact outlet protection using
natural stream cobbles or imbedded stone shall be utilized.
8) Complete rough grading - seed & grass all completed slopes within 21
calendar days
9) Install proposed drainage pipes, catch basins & temporary inlet
protection
10) Install proposed curb & gutter
11) Backfill & shape shoulder areas behind curb lines
12) Install stone base
13) Install pavement surface
14) Seed, grass & restore all remaining disturbed areas. Erosion control
measures shall be removed as direction by the Engineer and NC DENR.
29 ?WKD NO. no.
DICKSON
community Infrastructure consultants SHEET NO, / OF
JOB NAME -IFS I F I=mo! V k.: , 51 COMPUTED BY l DATE 5 / 2 3 108
CLIENT C Cr- i r?::rL: 4,.-`- L - LP I L4f CHECKED BY DATE
VI 57xE:A T--reom rm cecs i/-)r7
ei,s, i G s t ><a ` v,,xx cu L-vmir
Ll
-TALWI*11-17i? CC
4M
r{?'J If ?y??? FCCbin?:.
t P-'OJG-CT 7- U- q1 4? , 1?7?23(-).2
too
L`! IOU j"` j2vv0 7"t 5 ZLU L, F u--E.a T 6-! Jec .
t-10 GOC 4
-rrL? 0 16" 0 KcP G t,0-26
1 K -]_
PROPOSED 96" RCP
Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.013
Channel Slope 0.00350 ft/ft
Diameter 8.00 ft
Discharge 572.25 ft3/s
Results
Normal Depth 7.12 ft
Flow Area 47.26 ft2
Wetted Perimeter 19.73 ft
Top Width 5.00 ft
Critical Depth 6.09 ft
Percent Full 89.0 %
Critical Slope 0.00457 ft/ft
Velocity 12.11 ft/s
Velocity Head 2.28 ft
Specific Energy 9.40 ft
Froude Number 0.69
Maximum Discharge 580.41 ft'/s
Discharge Full 539.56 ft'/s
Slope Full 0.00394 ft/ft
Flow Type SubCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 89.02 %
Downstream Velocity Infinity ff/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
81712008 4:42:58 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2
r ?_7-yb
PROPOSED 96" RCP
GVF Output Data
Normal Depth
Critical. Depth
Channel Slope
Critical Slope
7.12 ft
6.09 ft
0.00350 ft/ft
0.00457 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
817/2008 4:42:58 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-755-1666 Page 2 of 2
CULVERT' ` ]RVEY & HYDRAULIC DESIGN- ?EPORT
N. C. DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
HYDRAULICS UNIT
RALEIGH; N. C. .
I.D. No. _--_U_2414A---------- . project No. ___$,1792302___ __
Proj. Station 35+32.3 -LRev-
County Catawba. Stream _T_ributarsr_ to Miller Branch
SR 1692 ------------------------------------
On Highway -,_ (Tate- Blvd) -----• Between ____ SR 1468 . Stru. No.
(w twat?r_ Rd> ___
_ Q? ---- and _lFQir- SR 1476
?rQy_@.__Ght?rQh_ Rd) _
Recommended Structure Extend- Outlet of Existing 2.74rn_ x_ 2-74m RCBC
-------------------------
--------------------------------------------------------------------------------------------------------------------
Recommended Width of Roadwa - """"-'
y ------- .......................... Skew __?2_2____ - ---
- ------------
ecommended Location is (Up At Down) Stream from Existing Crossing. _--_-at_ Existing Crossing
Bench Mark is ------ -- --'---°-----------•
--M_-tt9_ /R_ Spike Set In BST Shoulder 14.214m Lt of Sta 52+03.888 -BL-
-------------------------------------------------
----------- ---- Elev.. ---?81-382... m Datum: _ NGVD_ 1929 _ _
Temporary Crossing Phase -Traffic On Site ------------------------ ?9 ----------------- 7 _
L,
Designed by: --__W__G__Cgil_ _
---------------
Assisted by: __ R_E_ Lassiter
------------------
Project Engineer: _-W_G. Cau
- ---- --- ---
117
Reviewed by:
Date ---- ?/? o v--
` IT
C AR
?0, ?FES B,Cj•Q?C'
• SEAL
i 022000
Mfr EM G?;??a
..... _:.. SITE DATA _ ,? - ....
Drainage Area _?g___9__Ha/Sa. Km Source __USGS_ Quad (Hickor )___ Urban
Character Qiue_Rfdge/Piedmont
Stream Classification (Such as Trout, High Quality Water, etc.) __-- Class--C
---------
Data on Existing Structure 2Jft Sl_x .2.74m__RCBC;_Length _35^2m; _
Top ab .Thickness=0.239m; WaG Thi6 k6 ess=0.2i3-M -----------------------
'
z
Data on Structures Up and Down Stream T2_ @_ 2.4.4m _ CSP,_Area _Opening _9.3Miller_ Branch
1
-----------------------------------------------------1200;_600, 450 CSP
Gage Station No. ______ N/A__________ _ __________ Period of Records N/A
Max. Discharge -------- N/A ------------ m 3/s Date -----__ N/A-------------- Frequency ---__ N/A
Historical Flood Information:
No High Water Mr. Neill (Business Owner
DateQb$ery_edElev--------- m Est. Freq. -------- Source ---------------@--Site) - Period
_ _____________ Knowledge
ge _______
Date ----------- Elev--------- m Est. Fre Period of
q- ------. Source -------------------------------------- Knowledge -------
Allowable HW Elev. __HW/D50 = ±/_ 1,2___. m Normal Water Surface Elev. --- 281.61 _ m
Manning's n ; Left O.B. __ Q_I_Q___ Channel Right O.B. ---- _ Q_IO___ _
Obtained From ___Field --------
Flood Study / Status ------N/A ---------------'---- - - -
--------------------------- Floodway Established
Flood Study 100: yr. Discharge __.m 3/s; W:S. Elev.: With Floodway ... m Without Floodway m
DESIGN DATA
Hydrological Method USGS Urban Regression Equations
--------------------
Hydraulic Design Method ____ HDS _5, HEC_Ras
-----------------__----------------
Design Tailwater ; QID---- 1.3_2___ M; 025 ------------m; 050 ---- - --m: 0100----- m; O 500--2.15---- m
0 1 1 Inlet Control
Size & Type m 3/s Ke HW/D H.W.
Extend Existing
2.74m x 2.74m ABC 12 0.2 0.76 2,08
14 0.83 2.27
23 1.15 3.15
6:4
Outlet Control
_dc +
do
D ? ho H LSo
1.24 1.99 1.74 0.19 1.60
1.40 2.07 1.84 0.26
1.92 2.33 2.15 0.71
0.48 1.32 110.82 1.78 1.32 0.061 -
H.W.
0.33
0.50
1.26
HW Elev
283.39
283.58
284.46
282.63
15C0 Yr
100 Yr
SC 0 Yr
10 Yr
Is a Floodway Revision 1jQquired? -------------------------------
Outlet °Velocity, (VIo) _____-I.92 m/s ------------------ Natural Channel Velocity, (V10) -----------------
Required m/s
Outlet Protection ___ Class ! Rip Rap
INFORMATION TO BE SHOWN ON PLANS
Design: Discharge ______12 ..... m 3/s. Frequency 50 Yr
-- -------------------- Elev. ---- -- 283.39 -------m
Base Flood: Discharge ....... 14_____ m /s. Frequency ------10--0 ---Y--r ------- P30.3?
Elev. 283.58 m
Over toppina: Dischoroe 23 m 3iq Fran,janrv +500 Yr D-1 267.0 m
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Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Friday, Jul 25 2008,12:42 PM
Hyd. No. 1 -
YI-1
Hydrograph type = Rational Peak discharge. 3.02 cfs
Storm frequency = 10 yrs Time interval . = 1 min
Drainage area = 1.470 ac Runoff coeff. = 0.3
Intensity = 6.859 in/hr Tc by User = 5.00 min
OF Curve = Hickory-NC.IDF Asc/Rec limb fact = 3/3
Hydrograph Volume = 2,722 cuft
Q (cfs)
4.00
YI-1
Hyd. No. 1 -- 10 Yr
3.00
2.00
1.00
0.00 -k
0
5 10 15 20 25
Hyd No. 1
Q (cfs)
4.00
3.00
2.00
1.00
- N 0.00
30
Time (min)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Hyd. No. 2
C I-2
Hydrograph type = Rational
Storm frequency = 10 yrs.
Drainage area _ 1.470 ac
Intensity = 6.859 in/hr
OF Curve _ Hickory-NC.IDF
Friday, Jul 25 2008, 12:42 PM
Peak discharge = 3.53 cfs
Time interval 1 min .
Runoff coeff. = 0.35
Tc by User = 5.00 min
Asc/Rec limb fact = 3/3
Hydrograph Volume = 3,176 cult
Q (cfs)
4.00
CI-2
Hyd. No. 2 - 10 Yr
3.00
2.00
1.00
0.00
1 5 10
Hyd No. 2
15 20 25
Q (cfs)
4.00
3.00
2.00
1.00
-" 0.00
30
Time (min)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Hyd. No. 3
CI-3
Hydrograph type _ Rational
Storm frequency 10. yrs
Drainage area = 0:100 ac.
Intensity = 6.859 in/hr
OF Curve = Hickory=NC.IDF
Friday, Jul 25 2008,12:42 PM
Peak discharge = 0.47 cfs
Time interval = 1 min
Runoff coeff. = 0.69
Tc by User = 5.00 min
Asc/Rec limb fact = 3/3
Hydrograph Volume = 426 tuft
Q (cfs)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
CI-3
Hyd. No. 3 -- 10 Yr
0 5 10 15 20
Hyd No. 3
Q (cfs)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
25 30
Time (min)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Hyd. No. 4
CI-4
Hydrograph type = Rational
Storm frequency = 10 yrs
Drainage area = 0.210 ac
Intensity = 6.859 in/hr
OF Curve = Hickory-NC.IDF
Friday, Jul 25 2008,12:42 PM
Peak discharge = 1.41 cfs
Time interval = 1 min
Runoff coeff. = 0.98
Tc by User = 5.00 min
Asc/Rec limb fact = 3/3
Hydrograph Volume = 1,270 cult
Q (cfs)
2.00
1.00
CI-4
Hyd. No. 4 --10 Yr
0.00 " i
0 5
Hyd No. 4
10 15 20 25
Q (cfs)
2.00
1.00
" 0.00
30
Time (min)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Hyd. No. 5 -
CI-5
Hydrograph type Rational
Storm frequency. = 10 yrs
Drainage area = 0.160 ac
Intensity = 6.859 in/hr
OF Curve = Hickory-NC.IDF
Hydrograph Volume = 968 cult
Q (cfs)
2.00
Friday, Jul 25 2008, 12:42 PM
Peak discharge = 1.08 cfs
Time interval 1 min
Runoff coeff. = 0.98
Tc by User = 5.00 min
Asc/Rec limb fact 3/3
CI-5
Hyd. No. 5 -- 10 Yr
1.00
0.00 -1
0
5 10 15 20
Hyd No. 5
25
Q (cfs)
2.00
1.00
N 0.00
30
Time (min)
181
Table 8.03b
Value of Runoff Coefficient
(C) for Rational Formula
8.03.6
Land Use
C Land Use
C
Light areas 0.50-0.80 7% 0.30-0.60
0.20-0.50
Heavy areas 0.60-0.90 Agricultural land:
Parks, cemeteries 0.10-0.25 Bare packed soil 0.30-0.60
Smooth 0.20-0.50
Playgrounds 0.20-0.35 Rough 0.20-0.40
Cultivated rows 0.10-0.25
Railroad yard areas 0.20-0.40 Heavy soil no crop
Heavy soil with 0.15-0.45
Unimproved areas 0.10-0.30 crop 0.05-0.25
Streets: Sandy soil no crop 0.05-0.25
Asphalt 0.70-0.95 Sandy soil with
Concrete 0.80-0.95 crop 0.10-0.25
Brick 0.70-0.85 Pasture
Heavy soil 0.15-0.45
Drives and walks 0.75-0.85 Sandy soil 0.05-0.25
Roofs 0.75-0.85 Woodlands 0.05-0.25
NOTE: The designer must use judgement to select the appropriate C
value within the range for the appropriate land use. Generally, larger
areas with permeable soils, flat slopes, and dense vegetation should
have lowest C values. Smaller areas with slowly permeable soils, steep
slopes, and sparse vegetation should be assigned highest C values.
Source: American Society of Civil Engineers
Business: Lawns:
Downtown areas 0.70-0.95 Sandy soil, flat, 2% 0.05-0.10
Neighborhood areas 0.50470 Sandy soil, ave., 0.10-0.15
Residential: 2-7% 0.15-0.20
Single-family areas
0
30-0
50 Sandy soil, steep, 0.13-0.17
Multi units, detached .
.
0.40-0.60 7%
Heavy soil, flat, 2% 0.18-0.22
0.25-0
35
Multi units, Attached 0.60-0.75 Heavy soil, ave. .
Suburban
0.25-0.40 ,
2-7%
Industrial: Heavy soil, steep,
Rev. 6/06
rrecipitanon Prequency llata Server
Page 1 of 4
POINT PRECIPITATION`
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
HICKORY FAA AIRPORT, NORTH CAROLINA (31-4020) 35.7411 N 81.3897 W 1102 feet
from "Precipitation-Frequency Atlas of the United States" NOAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin; B. Lin, T. Patzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring; Maryland, 2004
Extracted: Fri Jul 252008
Confidence Limits
D
LL 10
0.01 To
0.01 F
0.02 To
0.02 C
0.02 Fo
0.02
0.02 F
0.02 Fo
II * Upper bound of the 90% confidence interval
PMeeinitatinn Tntnnei+y 11?-+i..,n-
AEP**
(1-in- 5 10 15 30 60 120 3 6 12 24 48 4 7 10 20 30 45
Y) min min min min min min hr hr hr hr hr day day day day day d
r?
I 1 I CI l1 G I AI 1 n 1 ? ? 1 . -.. 1 I?? r??1 ?1 I?1 1-??1 1?? r--??
11--_IJ-vJI '? Il *' 111 '? I vl ay I UL 0`+ I tlLjJ u? L4 u( 15 101 09 110 1 10.03 110 110 L
6.59 5.28 4.45 3.17 2.03 1.20 0.86 0.52 0.32 0.720E2] 0.07 0.04 0.03 0.02
10 7.47 5.97 5.03 3.65 2.38 1.42 1.02 0.62 0.38 0.24 0.14 0.08 0.05 0.04 0.02 C
25 8.55 6.81 5.75 4.26 2.84 1.71 1.24 0.75 0.45 0.29 0.17 0.09 0.06 0.04 0.03
50 9.32 7.43 6.27 4.72 3.20 1.95 1.42 0.86 0.51 0.33 0.19 0.10 0.06 0.05 0.03
100 10.14 8.05 6.78 5.20 3.58 2.21 1.62 0.98 0.58 0.37 0.21 0.11 0.07 0.05 0.03 C
200 10.96 8.69 7.31 5.69 3.99 2.49 1.784F 10 0.64 0.41 0.23 0.12 0.08 0.06 0.04 C
500 12.07 9.54 8.01 6.37 4.57 2.90 2.16 1.29 0.74 0.46 0.26 0.14 0.08 0.06 0.04 C
1000 12.97 10.21 8.55 6.92 5.05 3.25 2.44 1.45 0.82 0.51 0.28 0.15 0.09 0.07 0.04
' The upper bound of the confidence interval at 90% confidence level is the value which 5% of the simulated quantile values for a given frequency are greater than.
These precipitation frequency estimates are based on an annual maxima series. AEP is the Annual Exceedance Probability.
Please refer to the documentation for more information. NOTE: Formatting prevents estimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Intensity Estimates (in/hr)
.01
02
.02
02
02
.02
.03
.03
.03
ay r
011[0
.01 C
.02 C
.02 C
.021 r0
.02 C
A2 C
.02 C
A2 C
AEP
** 5 11 10 15 30 1? 60 1? 120 3 6 12 24 48 4 7 10 20 j[10 45
min min min min min min 11 hr hr hr hr hr day day day day ay day
http://hdsc. nws.noaa. gov/cgi-bin/hdse/buildout.perl?type=idf&units=us&serieS=am&state... 7/25/2008
• r _r?? - -4uvl l?r oou111dR S dies ueseu On an annuai maxima senes AhF is the Annual Exceedance Probability.
Please refer to the documentation for more information. NOTE: Formatting forces estimates near zero to appear as zero.
rreclpitatlon rrequency Vata Server Page 2 of 4
Y)1UUL-IUUUI-JUUL-IL-iUL-IL-IUL-ILL
4.42 3.54 2.96 2.05 1.28 0.75 0.53 0.33 0.20 0.13 0.08 0.04 0.03 OA2 0.02 0.01 0.01 C
I 15.54 4.43 3.73 2.65 1.70 1.00 0.71 0.44 0.27 0.17 0.10 0.06 0.04 0.03 0.02 0.072F66 1 C
0 6.25 5.00 4.21 3.05 1.99 1.18 0.84 0.52 032 0.20 0.12 0.07 0.04 0.03 0.02 0.02 0.01 C
25 7.08 5:64 4.76 3.53 2.35 1.41 lAl 0.62 038 0.25 0.14 0.08 0.05 0:04 0.02 0:02 0.02 C
50 7.64 6.08 5.14 3.87 2.62 1.59 1.15 0.70 0.42. 028 0 16 0.09 0.05 0.04 0.03 0.02 O F02 C .
100 8.19 6.51 5.48 4.20 2.89 1.77 128 0.79 0.47 0.31 0.18 0.10 0.06 0.05 0.03 0.02 0.02
200 8.70 6.89 5.80 4.51 3.16 1.96 1.43 0.87 0.52 0.34 0.19 0.10 0.06 0.05 0.03 0.02 0.02
500 9.31 7.37 6.18 4.92 353 2.21 1.63 0.99 0.58 038 022 0.12 0.07 0.05 0.03 0.02 0.02
1000 9.76 7.69 6.44 5.21 3.80 2.41 1.79 1.09 0.63 0.42 0.24 0.13 0.08 0.06 0.04 0.03 0.02
`The lower bound of the confidence interval at 90% confidence level is the value which 5% of the simulated quantile values for a given frequency are less than.
These precipitation frequency estimates are based on an annual maxima series AEP is the Annual Exceedance Probability.
Please refer to the documentation for more information. NOTE: Formatting prevents estimates near zero to appear as zero.
Text version of tables
Annual Maxima based Point IDF Curves - Version: 3
35.7411 N 81.3897 U 1192 ft
19
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Annual Exceedanee Probability
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2-year s 100-year -
5-year -:- chef-_:P P. r-.
10-year -a 500-year +
25-year -- 1000-year -e -
Maps -
http://hdsc.nws. noaa. gov/cgi-bin/hdsc/buildout.perl?type=idf&units=us&series=am&state... 7/25/2008
rrecipitanon rrequency IJata ZServer
Other Maps/Photographs -
Page 3 of 4
These maps were produced using a direct map request from the
U.S. Census Bureau Mapping and Cartographic Resources
Tiger Map Server.
Please read disclaimer for more information.
- State
-- County
7 Indian Resv
LakelPond/Ocean
- Street
-- Expressway
- Highway
Scale 1:228583 ?0_
*average--true scale deper
LEGEND
Connector
Stream
Military Area
National Park
Other Park
0 City
? --•- Cqunty16 Is Mi
T-
r s on or dreso11lutl on
View USGS digital orthophoto quadrangle OQ) covering this location from TerraServer; USGS Aerial Photograph
may also be available
from this site. A DOQ is a computer-generated image of an aerial photograph in which image displacement caused by terrain
relief and camera tilts has been removed. It combines the image characteristics of a photograph with the geometric qualities
of a map. Visit the USGS for more information.
Watershed/Stream Flow Information -
Find the Watershed for this location using the U.S. Environmental Protection Agency's site.
Climate Data Sources -
Precipitation frequency results are based on data from a variety of sources, but largely NCDC. The following links provide
general information
about observing sites in the area, regardless of if their data was used in this study. For detailed information about the
stations used in this study,
http:llhdse.nws.noaa. gov/cgi-binlhdsc/buildout.perl?type=idf&units=us&series=am&state... 7/25/2008
rreclprtatlon I, requency Data Server Page 4 of 4
please refer to our documentation.
Using the National Climatic Data Center's (NCDC) station search engine, locate other climate stations within:
+/-30 minutes OR _ +/-1 degree of this location (35.7411/-81.3897). Digital ASCII data can be obtained
directly from NCDC.
Hydrometeorological Design Studies Center
DOC/NOAA/National Weather Service
1325 East-West Highway
Silver Spring, MD 20910
(301) 713-1669
Questions?: HDSC.Ouestions(a?noaa.Qov
Disclaimer
http://hdsc.nws.noaa. gov/cgi-binlhdsc/buildout.perl?type=idf&units=us&series=am&state... 7/25/2008
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Soil Map-Catawba County, North Carolina
Map Unit Legend
FULLER-WHITENER
Catawba County, North Carolina (NC035)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CmC2 Cecil sandy loam, 6 to 10 1
3
percent slopes, eroded . 6.6%
CnE3 Cecil clay loam, 10 to 25 15
6
percent slopes, severely . 80.4%
eroded (Pacolet)
Cw Chewacla loam 2.4 12.6%
PeE Pacolet soils, 10 to 25 percent 0
1
slopes . 0.5%
Totals for Area of Interest (AOI) 19.4 100.0%
Natural Resources Web Soil Survey 2.0
Conservation Service National Cooperative Soil Survey Pag7/25/2008
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Hydrologic Soil Group-Catawba County, North Carolina
Hydrologic Soil Group
FULLER-WHITENER
Hydrologic Soil Group- Summary by, Map Unit- Catawba County, North Carolina'
Map, unit symbol Map unit name Rating Acres in AOI Percent of AOI
CmC2 Cecil sandy loam, 6 to 10 B 1
3 %
percent slopes, . 6.6
eroded
CnE3 Cecil clay loam, 10 to 25 B 15.6 80
4%
percent slopes, .
severely eroded
(Pacolet)
Cw Chewacla loam C 2.4 12.6%
PeE Pacolet soils, 10 to 25 B 0
1
percent slopes . 0.5%
Totals for Area of Interest (AOI)
19.4 100.0%
Natural Resources Web Soil Survey 2.0
Conservation Service National Cooperative Soil Survey 7/25/2008
Page 3 of 4
Hydrologic Soil Group-Catawba County, North Carolina
Description
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive precipitation
from long-duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly
wet. These consist mainly of deep, well drained to excessively drained sands or
gravelly sands. These soils have a high rate of water transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well drained
soils that have moderately fine texture to moderately coarse texture. These soils
have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of water
transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink-swell
potential, soils that have a high water table, soils that have a claypan or clay layer
at or near the surface, and soils that are shallow over nearly impervious material.
These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in their
natural condition are in group D are assigned to dual classes.
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Lower
FULLER-WHITENER
USDA Natural Resources Web Soil Survey 2.0
r Conservation Service 7/25/2008
National Cooperative Soil Survey
Page 4 of 4
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