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HomeMy WebLinkAbout20080640 Ver 1_More Info Received_20090318L ii Z' March 17, 2009 Mr. Ian McMillan 401 Oversight/Express Permitting Unit NC Division of Water Quality 1650 Mail Service Center Raleigh, North Carolina 27699-1650 9??1Y e ? cy Re: Town of Cary Morrisville Parkway Extension - Phase 111, Wake County DWQ #20080640; USACE Action ID. No. SAW-2008-00373 Dear Mr. McMillan: On behalf of the Town of Cary, and at the request of the NC Ecosystem Enhancement Program (NC EEP), URS is requesting a revision to the Water Quality Certification (WQC) for the above- referenced project that was issued on April 4, 2008. As described in the PCN application, this project will be developed in three phases (Stage IA, Stage 1B, and Stage 2). We request that the WQC mitigation requirement (a total of 3,412 linear feet of perennial stream) be listed in phases as it is listed in the PCN: Stage IA - 731 linear feet Stage 1 B - 1,297 linear feet Stage 2 - 1,384 linear feet This itemized clarification would make the WQC and the US Corps of Engineers (USACE) 404 permit mitigation requirement match (see attached USACE permit issued January 30, 2009), and allow the NC EEP to invoice the Town of Cary for the first phase of the project (Stage IA) independent of the future phases. In addition, the River and Sub-basin Number for the WQC mitigation requirement should be revised to Cape Fear/03030004 (not Cape Fear/03030003). Also, the Town of Cary applicant contact name has changed, and should be listed as Mr. Eric Simpson instead of Mr. Russ Overton. Please contact me at (919) 461-1435 if you should have any questions regarding this request. Sincerely, URS Corporation - North Carolina au?'k Charles E. Benton, PWS Senior Environmental Scientist Enclosure as noted cc: Eric Simpson, Town of Cary Monte Matthews, USACE URS Corporation - North Carolina 1600 Perimeter Park Drive, Suite 400 Morrisville, NC 27560 Tel: 919.46 1.1100 Fax: 919.461.1415 www.urscorp.com REPLY TO ATTENTION OF DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403-1343 January 30, 2009 Regulatory Division Action ID SAW-2008-00373 Town of Cary, Engineering Department ATTN: Mr. Eric Simpson Post Office Box 8005 Cary, North Carolina 27512-8005 /' hfiT?'o Fy 9?f, ?'??jr Q" • vim. f, o??• pl! FEB042W9 TOWN OF CARY ENGINEERING DEPT. Dear Mr. Simpson: Enclosed is a Department of the Army permit to fill material into 0.72 acres of jurisdictional forested wetlands, and 3,412 linear feet of perennial stream channel exhibiting important aquatic functions associated with the construction of Morrisville Parkway, Phase III. The project location is between North Carolina Highway 55 (NC 55) westward for a distance of approximately 3 miles to a terminus with SR 1625, Green Level to Durham Road at SR 1600, Green Level Church Road near Cary, Wake County, North Carolina. Any deviation in the authorized work will likely require modification of this permit. If a change in the authorized work is necessary, you should promptly submit revised plans to the Corps showing the proposed changes. You may not undertake the proposed changes until the Corps notifies you that your permit has been modified. Carefully read your permit. The general and special conditions are important. Your failure to comply with these conditions could result in a violation of Federal law. Certain significant conditions require that: a. You must complete construction before December 31, 2029. b. You must allow representatives from this office to make periodic visits to your worksite as deemed necessary to assure compliance with permit plans and conditions. You must notify this office in advance as to when you intend to commence and complete work. -2- You should address all questions regarding this authorization to Monte Matthews in the Raleigh Regulatory Field Office at (919) 554-4884, extension 30. Sincerely, Jefferson M. Ryscavage Colonel, U.S. Army District Commander Enclosures Copy Furnished (with enclosures): Chief, Source Data Unit NOAA/National Ocean Service ATTN: Sharon Tear N/CS261 1315 East-West Hwy., Rm 7316 Silver Spring, Maryland 20910-3282 Copy Furnished (with special conditions and plans): Mr. Ronald J. Mikulak, Chief Wetlands Regulatory Section 61 Forsyth Street Atlanta, Georgia 30303 Mr. Pete Benjamin U.S. Fish and Wildlife Service Fish and Wildlife Enhancement Post Office Box 33726 Raleigh, North Carolina 27636-3726 Mr. Doug Huggett Division of Coastal Management N.C. Department of Environment and Natural Resources 400 Commerce Avenue Morehead City, North Carolina 28557 Mr. David Rackley National Marine Fisheries Service 219 Fort Johnson Road Charleston, South Carolina 29412-9110 Mr. Ron Sechler National Marine Fisheries Service Pivers Island Beaufort, North Carolina 28516 DEPARTMENT OF THE ARMY PERMIT RECEIVED Permittee: TOWN OF CARY JAN 2 8 2009 Permit No: SAW-200800373 REGULHwRY WILM.FMOM Issuing Office: USAED, WILMINGTON NOTE: The term "you" and its derivatives, as used in this permit, means the permittee or any future transferee. The term "this office" refers to the appropriate district or division office of the Corps of Engineers having jurisdiction over the permitted activity or the appropriate official of the office acting under the authority of the commanding officer. You are authorized to perform work in the accordance with the terms and conditions specified below. Project Description: Portions of Morrisville Parkway have previously been constructed. This project is to extend the existing portion of roadway, currently terminating at NC 55, to Green Level to Durham Road at Green Level Church Road. The ultimate design would be similar to the existing sections of Morrisville Parkway which includes a 105-foot wide, 4-lane median divided roadway, including 5-foot wide sidewalks and 5-foot wide utility strips to be situated on both sides of the roadway. Included is an interchange with the future Western Wake Freeway (I-540). Total permanent impacts from this project are 0.72-acres of jurisdictional forested wetlands, and 3,412 linear feet of perennial stream channel exhibiting important aquatic functions. The Town of Cary is utilizing this long-range planning approach for a fair evaluation on the corridor and expected impacts of this roadway, rather than waiting and allowing future development to limit the overall flexibility required for impact minimization and/or avoidance. Stage 1A would be constructed using the final designs depicted within this permit. The other 2 phases would be permitted on the impacts stated above, realizing that these are worse-case scenarios. Final designs for each stage would be provided to the Corps for a permit modification prior to construction. At the time of permit modification, additional minimization or avoidance would be evaluated for items such as bridging, fill slopes, etc. It is expected that impact amounts would go down during the time of permit modification. To mitigate for all unavoidable impacts to jurisdictional features for stage 1A, the applicant has proposed payment into the North Carolina Ecosystem Enhancement Program (NCEEP) in the amount to restore 0.17 acres of riparian wetlands in the Cape Fear River Basin, Cataloging Unit 03030002 and 731 linear feet of warm water stream in the Cape Fear River Basin, Cataloging Unit 03030004. In addition, the applicant will preserve 3,565 linear feet of on-site stream channel and 1.2 acres of on-site wetlands via the Corps' standard Declaration of Restrictions language. As the plans for phases 113 and 2 are finalized, permit modifications showing the finalized plans must be submitted to the Corps for review and evaluation. Compensatory mitigation for impacts under phases 1 B and 2 will be addressed at the time of each respective permit modification and completed prior to impacts to jurisdictional features. Project Location: The project location is between North Carolina Highway 55 (NC 55) westward for a distance of approximately 3 miles to a terminus with SR 1625, Green Level to Durham Road at SR 1600, Green Level Church Road near Cary, Wake County, North Carolina. Coordinates, in decimal degrees, for the end points of the construction areas are 35.813720°N, 78.872747° W, and 35.802659 'N, 78.909490 ° W. The project site contains several wetlands and unnamed streams channels which drain to Panther Creek in the Haw watershed of the Cape Fear River Basin (8-Digit Cataloging Unit of 03030002). ENG Form 1721, Nov 86 EDITIONS OF SEP 82 IS OBSOLETE. (33 DFR 325 (Appendix A)) Permit Conditions: General Conditions: 1. The time Limit for completing the work authorized ends on December 31, 2029 If you find that you need more time to complete the authorized activity, submit your request for a time extension to this office for consideration at least one month before the above date is reached. 2. You must maintain the activity authorized by this permit in good condition and in conformance with the terms and conditions of this permit. You are not relieved of this requirement if you abandon the permitted activity, although you may make a good faith transfer to a third party in compliance with General Conditions 4 below. Should you wish to cease to maintain the authorized activity or should you desire to abandon it without a good faith transfer, you must obtain a modification of this permit from this office, which may require restoration of the area. 3. If you discover any previously unknown historic or archeological remains while accomplishing the activity authorized by this permit, you must immediately notify this office of what you have found. We will initiate the Federal and state coordination required to determine if the remains warrant a recovery effort or if the site eligible for listing in the National Register of Historic Places. 4. If you sell the property associated with this permit, you must obtain the signature of the new owner in the space provided and forward a copy of the permit to this office to validate the transfer of this authorization. 5. If a conditioned water quality certification has been issued for your project, you must comply with the conditions specified in the certification as special conditions to this permit. For your convenience, a copy of the certification is attached if it contains such conditions. b. You must allow representatives from this office to inspect the authorized activity at any time deemed necessary to ensure that it is being or has been accomplished in accordance with the terms and conditions of your permit. Special Conditions: *SEE ATTACHED SPECIAL CONDITIONS Further Information: 1. Congressional Authorities: You have been authorized to undertake the activity described above pursuant to: ( ) Section 10 of the Rivers and Harbors Act of 1899 (33 U.S. C. 403). (X) Section 404 of the clean Water Act (33 U.S.C. 1344). ( ) Section 103 of the Marine Protection, Research and Sanctuaries Act of 1972 (33 U.S.C. 1413). 2. Limits of this authorization. a. This permit does not obviate the need to obtain other Federal, state, or local authorizations required by law. b. This permit does not grant any property rights or exclusive privileges. c. This permit does not authorize any injury to the property or rights of others. 2 *U.S. GOVERNMENT PRINTING OFFICE: 1986-717425 d. This permit does not authorize interference with any existing or proposed Federal project. 3. Limits of Federal Liability. In issuing this permit, the Federal Government does not assume any liability for the following: a. Damages to the permitted project or uses thereof as a result of other permitted or unpermitted activities or from natural causes. b. Damages to the permitted project or uses thereof as a result of current or future activities undertaken by or on behalf of the United states in the public interest. c. Damages to persons, property, or to other permitted or unpermitted activities or structures caused by the activity authorized by this permit. d. Design or construction deficiencies associated with the permitted work. e. Damage claims associated with any future modification, suspension, or revocation of this permit. 4. Reliance on Applicant's Data: The determination of this office that issuance of this permit is not contrary to the public interest was mad in reliance on the information you provided. 5. Reevaluation of Permit Decision. This office may reevaluate its decision on this permit at any time the circumstances warrant. Circumstances that could require a reevaluation include, but are not limited to, the following: a. You fail to comply with the terms and conditions of this permit b. The information provided by you in support of your permit application proves to have been false, incomplete, or inaccurate (see 4 above). c. Significant new information surfaces which this office did not consider in reaching the original public Interest decision. Such a reevaluation may result in a determination that it is appropriate to use the suspension, modification, and revocation procedures contained in 33 CFR 325.7 or enforcement procedures such as those contained in 33CFR 326.4 and 326.5. The referenced enforcement procedures provide for the issuance of an administrative order requiring you to comply with the terms and conditions of your permit and for the initiation of legal action where appropriate. You will be required to pay for any corrective measures ordered by this office, and if you fail to comply with such directive, this office may in certain situations (such as those specified in 33 CFR 209.170) accomplish the corrective measure by contract or otherwise and bill you for the cost. 6. Extensions. General condition 1 establishes a time limit for the completion of the activity authorized by this permit. Unless there are circumstances requiring either a prompt completion of the authorized activity or a reevaluation of the public interest decision, the Corps will normally give favorable consideration to a request for an extension of this time limit. 3 *U.S. GOVERNMENT PRINTING OFFICE: 1986-717425 Your signature below, as permittee, indicates that you accept and agree to comply with the terms and conditions of this permit. (PERMITTEE) TOWN OF CARY (DATE) This permit becomes effective when the Federal official, designated to act for the Secretary of the Army, has signed below. f 3.0 0 9 (DISTRICT Engineer) JEFFERSO . RY VAGE, (DATE) ?i COLONEL When the structur or work authorized by this permit are still in existence at the time the property is transferred, the terms and conditions of this permit will continue to be binding on the new owner(s) of the property. To validate the transfer of this permit and the associated liabilities associated with compliance with its terms and conditions, have the transferee sign and date below. (Transferee) (Date) 4 *U.S. GOVERNMENT PRINTING OFFICE: 1986 - 717.425 Special Conditions - Action ID 200800373, Town of Cary Work Limits 1. All work authorized by this permit must be performed in strict compliance with the attached plans, which are a part of this permit. Any modification to these plans must be approved by the US Army Corps of Engineers (USACE) prior to implementation. 2. Except as authorized by this permit or any USACE approved modification to this permit, no excavation, fill or mechanized land-clearing activities shall take place at any time in the construction or maintenance of this project, within waters or wetlands. This permit does not authorize temporary placement or double handling of excavated or fill material within waters or wetlands outside the permitted area. This prohibition applies to all borrow and fill activities connected with this project. 3. Except as specified in the plans attached to this permit, no excavation, fill or mechanized land-clearing activities shall take place at any time in the construction or maintenance of this project, in such a manner as to impair normal flows and circulation patterns within waters or wetlands or to reduce the reach of waters or wetlands. 4. The North Carolina Division of Water Quality (DWQ) permit/certification number 3737 was issued for this project on April 9, 2008. Special conditions were issued associated with this water quality permit/certification and a copy of these conditions is attached as Exhibit A. These referenced conditions are hereby incorporated as special conditions of this permit. 5. The permittee shall make payment to the North Carolina Ecosystem Enhancement Program (NC EEP) in the amount determined by the NC EEP, sufficient to perform the amount necessary to restore 0.17 acre of riparian wetlands in the Cape Fear River Basin, Cataloging Unit 03030002 and 731 linear feet of warm water stream in the Cape Fear River Basin, Cataloging Unit 03030004. Construction within jurisdictional areas on the property for Stage IA shall begin only after the permittee has made full payment to the NC EEP and provided a copy of the payment documentation to the Corps, and the NC EEP has provided written confirmation to the Corps that it agrees to accept responsibility for the mitigation work required, in compliance with the MOU between the North Carolina Department of Environment and Natural Resources and the United States Army Corps of Engineers, Wilmington District, dated November 4, 1998. Special Conditions - Action ID 200800373, Town of Carry In addition, the Permittee shall execute and cause to be recorded in the Wake County Register of Deeds a Conservation Declaration, the form of which was transmitted to USACE in a December 19, 2008, email from Mr. Eric Simpson, which shall preserve in perpetuity 3,565 linear feet of stream and 1.2 acres of wetland described on the map attached to the email as "WETLANDS _PRESERVE". The December 19, 2008, email states that the Permittee will use the Corps approved language for Declaration of Restrictions verbatim. The permittee shall enforce the terms of the conservation declaration and shall take no action on the property described in the declaration inconsistent with the terms thereof. The permittee shall record the conservation declaration no later than May 1, 2009. The permittee shall provide a copy of the recorded declaration to the Corps of Engineers within 30 days of recording. 6. As the plans for phases 1 B and 2 are finalized, permit modifications showing the finalized plans must be submitted to the Corps for review and evaluation. Compensatory mitigation for impacts under phases 1 B and 2 will be addressed at the time of each respective permit modification and completed prior to impacts to jurisdictional features. Culverts 7. Measures will be included in the construction/installation that will promote the safe passage of fish and other aquatic organisms. The dimension, pattern, and profile of the stream above and below a pipe or culvert should not be modified by widening the stream channel or by reducing the depth of the stream in connection with the construction activity. The width, height, and gradient of a proposed opening should be such as to pass the average historical low flow and spring flow without adversely altering flow velocity. Spring flow should be determined from gage data, if available. In the absence of such data, bankfull flow can be used as a comparable level. Culverts greater than 48 inches in diameter will be buried at least one foot below the bed of the stream. Culverts 48 inches in diameter or less shall be buried or placed on the stream bed as practicable and appropriate to maintain aquatic passage, and every effort shall be made to maintain the existing channel slope. The bottom of the culvert must be placed at a depth below the natural stream bottom to provide for passage during drought or low flow conditions. Destabilizing the channel and head cutting upstream should be considered in the placement of the culvert. A waiver from the depth specifications in this condition may be requested in writing. The waiver will be issued if it can be demonstrated that the proposal would result in the least impacts to the aquatic environment. Culverts placed in wetlands do not have to be buried. 2 Soecial Conditions - Action ID 200800373, Town of Cary Related Laws 8. All mechanized equipment will be regularly inspected and maintained to prevent contamination of waters and wetlands from fuels, lubricants, hydraulic fluids, or other toxic materials. In the event of a spill of petroleum products or any other hazardous waste, the permittee shall immediately report it to the N.C. Division of Water Quality at (919) 733-5083, Ext. 526 or (800) 662-7956 and provisions of the North Carolina Oil Pollution and Hazardous Substances Control Act will be followed. Proiect Maintenance 9. The permittee shall advise the Corps in writing prior to beginning the work authorized by this permit and again upon completion of the work authorized by this permit. In addition, a pre-construction meeting shall take place prior to beginning the construction activities. This meeting shall be comprised of the applicant, the contractors, any sub-contractors and their equipment operators working within jurisdictional areas. Please contact the Corps of Engineers Project Manager at least 2 weeks prior to the commencement of construction to schedule this meeting. 10. Unless otherwise authorized by this permit, all fill material placed in waters or wetlands shall be generated from an upland source and will be clean and free of any pollutants except in trace quantities. Metal products, organic materials (including debris from land clearing activities), or unsightly debris will not be used. 11. The permittee shall require its contractors and/or agents to comply with the terms and conditions of this permit in the construction and maintenance of this project, and shall provide each of its contractors and/or agents associated with the construction or maintenance of this project with a copy of this permit. A copy of this permit, including all conditions, shall be available at the project site during construction and maintenance of this project. 12. The permittee shall employ all sedimentation and erosion control measures necessary to prevent an increase in sedimentation or turbidity within waters and wetlands outside the permit area. This shall include, but is not limited to, the immediate installation of silt fencing or similar appropriate devices around all areas subject to soil disturbance or the movement of earthen fill, and the immediate stabilization of all disturbed areas. Additionally, the project must remain in frill compliance with all aspects of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statutes Chapter 113A Article 4). 3 Special Conditions - Action ID 200800373, Town of Cary 13. The permittee, upon receipt of a notice of revocation of this permit or upon its expiration before completion of the work will, without expense to the United States and in such time and manner as the Secretary of the Army or his authorized representative may direct, restore the water or wetland to its pre- project condition. Enforcement 14. Violations of these conditions or violations of Section 404 of the Clean Water Act or Section 10 of the Rivers and Harbors Act must be reported in writing to the Wilmington District U.S. Army Corps of Engineers within 24 hours of the permittee's discovery of the violation. 4 1 Ak) S - �.r : ° ♦:�.c? '6K''�f �'°','`��t J„`£�JFt�i-��'��,,�,"'' �SG_f"^s'.f r -•i� '� ' t _k -.y ; ? '„ate . �"� � - ��� 4r�k �,�f•'� ter,-« � � k w r�q+y b 7 �i�- }1 :': s y. ,,4 - •- yam" `ZLt a "++C F : kr E?$� x ,fiy t . n,,.• -.-t .S ''���iau- i ;�'"�,. �� .7� ;F ��. ' r'a�. I"_' � l3. � � � E" ,�'1•. �r+'F- a F � > f � �-FrP�'� r._'4 t a ��y� ..,,, r."r, F ..' . � ' > ��h���+y� t a''` �'4; , ?tit � t � r }.,,r,,, .��k � �; � Jx'L'"�^f. i•t. '%` �"�K',,.y'.za-, i,r . [icy, v Y _ ��, c`■`A �f�u ; .,� a � j yy-t.> > i � f' � it" }9` ..ait�`r'`` j° _. ..��:sT / ,,� 1 ,i, ". �fi t. f,=.. f ki `.• �. � .4 alt t ,J � }Z� , x � � � .,+it•h-.i"�+,y���!y� 1.4'"s ({� yhx NUM ., ��, @ tt* � �'r+4 ;�'! v. :, � -ri � • ` �' 'rtfi 1 °"� j •� t�ia � 7. „•� �a �"` � ♦ �� - . .t-�,5� r+*.. .. I, _♦ L `Fir z•� ..�-"," r�T •3.+14-1. ��•��•¢¢¢¢¢¢�� �'+f .i'_I � y�,�. ti.J i .i;� ,�� c it sw■Y,,tF '6; S if '4� 'y 'ff _ A 'F t STAGE 1A - (GREYSTONE SUBDIVISION AREA) WETLAND AND STREAM IMPACTS Figure No. Imact No.** Permanent Impact T e linear feet** square feet** IA Perennial Stream 365 1,135 ] SC- 113 Section 404 Forested Wetland N/A 91 1C Section 404 Forested Wetland N/A 153 2A Perennial Stream 366 1,274 SC-2 213 Section 404 Forested Wetland 2,617 2C Section 404 Forested Wetland 4 538 Total 731 9,808 ** Based on final design (see Appendix B for plan drawings). STAGE 1B - 2-LANE ROADWAY: NC-55 TO GREYSTONE SUBDIVISON WETLAND AND STREAM IMPACTS Figure No. Permanent Impact Type linear feet* square feet* SC-3 Perennial Stream 241 2,410 SC4 Perennial Stream 361 3,610 SC-5 Perennial Stream 495 4,950 SC-6 Perennial Stream 200 2,000 WC-1 Section 404 Forested Wetland N/A 4,356 Total 1297 17,326 • Estimate based on preliminary design. STAGE 2 - 4-LANE ROADWAY: NC-55 TO GREEN LEVEL CHURCH ROAD WETLAND AND STREAM IMPACTS Figure No, Permanent Impact Type linear feet*** square feet*** SC-1 Perennial Stream 0 0 SC-2 Perennial Stream 0 0 SC-3 Perennial Stream 546 5,460 SC-4 Perennial Stream 84 840 SC-5 Perennial Stream 50 500 SC-6 Perennial Stream 60 600 SC-7 Perennial Stream 508 508 SC-8 Perennial Stream ' 136 136 WC-1 Section 404 Forested Wetland N/A 2,178 WC-2 Section 404 Forested Wetland N/A 9,583 WC-3 Section 404 Forested Wetland N/A 1,307 WC-4 Section 404 Forested Wetland N/A 871 WC-5 Section 404 Forested Wetland N/A 871 WC-6 Section 404 Forested Wetland NIA 2,614 WC-7 Section 404 Forested Wetland N/A 2,000 Total 1,384 27,468 *** bstimate based on preliminary design for the Stage 2 additional impacts. Sheet 4 of 21 SUMMARY OF OVERALL WETLAND AND STREAM IMPACTS (ALL STAGES) Project Stage Stage 1A Stage I B Stage 2 Greystone Subdivision 2-Lane Road (NC 55 to Greystone Subdivision)* 4-Lane Road (NC 55 to Green Level Chruch Road)* Total Permanent Section 404 Forested Wetlands (acre) 0.17 0.10 0.45 0.72 Impacts Perennial Streams (linear feet) 731 1,297 1,384 3,412 Temporary Section 404 Forested Wetlands (acre) 0.00 To be determined (TBD TBD TBD Impacts Perennial Streams linear feet) 0 TBD TBD TBD *Estimate based on preliminary design. Sheet 5 of 21 Tom' `?............. ? - Ilk. m Q .?. n m JIM a< z ?• f i - ? r ,, . r n(:5 Z ? •o D z . Co. m X m •? nc i , e? Cf' Z o ?.. Z w Q (? ?J Z Z o ?P 0 -n 4 y C: cr) p -7 u1 CA A C all CD ?To 33 > Y # CIO ' s" l p r . CD ? ::j S4zo Oar [ O? N UQ, tF• t N s m? fii Gr' Or .9 e v ± w» y aa O ? + a p z 9 Z f11 T C fl yy?? y? e's 'S / 153 SF j PROPOSED " CONSTRUO JON WETLAND oo, CHANNEL fC I ?/ j J DOWNSTREAM I / IMPROVEMENTS 01 1 iFr . 7 l { 1 ??1 1 , f :?• ` 1 22' MR C ? • .. G (GREE i Y UNDERP S ho ?9SI t ?`Gb ^1 e 1 ?. ! TOE PROTECTION I 10 \ ?*3 ' TEmp6RARY ool. SEDIMENT ,gyp BASIN \L 4t r f_ 1 1 - •t ?? ' l l tl 1 1 01, \ I I COONSTORUCTION `NTHA +68`.5, 5R LIMITS ` 1,1135 SF 1. 365 LF 945 / CH CHANNEL! A' UPST EAJ? f I 1 IMPROVEMENTS, 101 , ?AE\ ,THIS°sErITES-T/ t ! / 1 NOTES: 1. WETLANDS DELINEATED BY S&EC AND SURVEYED BY WITHERS & RAVENEL, INC. 2. EXISTING TOPOGRAPHY TAKEN FROM SURVEY BY WITHERS & RAVENEL, INC. WffH SUPPLEMENTAL INFORMATION FROM LIDAR. 3.CULVERTS TO BE INSTALLED WITH INVERTS ONE FOOT BELOW EXISTING STREAMBED, WITH A WEIR STRUCTURE INSTALLED IN EASTERN CULVERT AT 3A0' ABOVE THE INVERT ELEVATION W2 PIPE) TO PROVIDE PASSAGE FOR AQUATIC LIFE THROUGH ?. .WESTERN CULVERT. aooe: See OveraN Wetlende Lnc.u M.a FoPA- ! =- WITHERS RAVENEL .'_ FNGkNEERS I PLANNERS I SURVEYORS .?` t 1 J l i l } I. I \? 1 S I I I 4 i I Il r?! ? I l I I I i GRAPHICAL SCALE 50' 26 0 5LY 1 krh r, _SA tL. f Stage IA - Final Design Drawings Sheet 7 of 21 1' ?• w W •a. W W W .y ? w W W W W W? W W W W W W •? `?• W W W W? • .y y, W W w W w W .6 W 1 • `?' w W W W W W ?WW?,W S? • W w y W y ` w W ?' W W y. W JI/ W .? W W W w W W \ V"W77??'?Jp?1VT11'??r w.4 WV•W .Y ?J LQ S_ ? W W W W ty'.'.. ! yyAA W y. ^41{ f/ ` 'f W ? W W j 2B rYr 2,617 SF ?l o WETLAND 1l a X59.03. .5z L.1; _ .' l wwvwv 1 l ? .` / 'S., %\ % FE8 % IIZZ TOE P O7ECTION? ?.? SEE DF.TA?t 1 ? 1 . I.AJ- } 1,274 SF ss6 6 LF -TOE PR6CT SEE DETAIL. r • t 1 2C PROPOSED ?• M. AB4BS:19U4 Y. • w 4,597 SF ??NS?UCTION. 1? ` ?.HW#301, , `_W W W W,, LI MITS ` WETLAND ?. ? ZgD? „? ' 7\ w ' IMRR` EM?ENTS \ \ \ Y `rte _`? `` N/F 5TRE\ I \ W + j' V('NOMgS, L.L?C. CHANNEL. ` `\wy Pl? J { j 1 N1 1. WETLANDS DELINEATED BY S&EC AND SURVEYED 4 1 } ! / ?// // ' 2. EXISTINGETOPOGRAPHYETA INC. FROM SURVEY ! }, } 1 ,? / / BY WITHERS & RAVENEL, ING. WffH SUPPLEMENTAL INFORMATION FROM LIDAR. 3. CULVERTS TO BE INSTALLED WITH INVERTS ONE GRAPHICAL SCALE FOOT BELOW EXISTING STREAMBED, WITH A WEIR STRUCTURE INSTALLED IN WESTERN CULVERT AT 50' 2:9 0 rs0r 2.75' ABOVE THE INVERT ELEVATION (V2 PIPET TO PROVIDE PASSAGE FOR AQUATIC LIFE THROUGH EASTERN CULVERT. ;_ ?4 JniJ: - Flt w Note- See O.•eral Wetlands mwa Ma For Area aeaNon - ----•-•-•• - WITHERS'. RAVENEL _ _ ENGIMEIR.S I. PLAN..MERf SURVEYDRs. 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