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HomeMy WebLinkAbout20140762 Ver 1_RE R-2915E Site 22_20171006Carpenter,Kristi From: Sent: To: Cc: Subject: Attachments: Dave, Zerman, William S Friday, September 29, 2017 12:46 PM Wanucha, Dave; Buncick, Marella Chambers, Marla J; Steven.L.Kichefski@usace.army.mil; Jeff Meador (jmeador@rkk.com); Cheely, Erin K RE: R-2915E Baffles In Round Pipes 04 0000 2016 R-2915C UT OLD FIELD CREEK US221 1 OF 2.PDF On project R-2915E, I appreciate your input on sites 22 and 27 concerning aquatic passage. I have not received any further agency input so I think we have adequately vetted not proposing baffles in the pipes at those sites. We will move ahead with our current design as we approach the 4c meeting in the near future. If additional conversations are needed concerning this, please let me know. As we research baffles in pipes, the Hydraulics Unit is open to their use if debris isn't an issues and the aquatic habitat supports the initial installation costs and required future maintenance efforts. FYI-if you remember, on the C section, we are calling for 1.5' baffles in an 84" pipe (see permit site 13A) which would be good to monitor over time after it's been installed. It's on plan sheet 11 (permit plan sheet 18). I have attached the CSR for reference. �� � . , r',� } f �'�'L � �uTH�� FJ ���p� t f� LII�4A AaKER 7a•��� �'� x EF ' �LE�+, h} i}�E .IT�_H •J,rNE 6aKEy .- � �f� ��h� 5 � _ .�y yL,LI; : ,I ��yy�'���,�nP ' f �'. 111 tnr � � L7 . H, r.l.•.. 5� �iY�. , . I .,a+Y � .`i .� � { ��Hrl1�E ,,. � _ � � L' {I: f��. �. f ���' .�� � .�fr ''� � �:f ' � fy�IQ .}f}�T.. �' m �T_IIC� S"�F � { y - �� ' �� �� � � ,. , j .`� x�+ F r SITE l�A �� � K r�- � �. Sw ..} ` ��. I' �h. �F57 ��°�r�i�lu, ��, � 4 � �,', _ � ,� �"I�a�b� 3CL. �t, i; i �. � EtiT� SY�F .!.. xH .•� 'iH II J ��:' ' "'x _'�1 �T•'E. � Y: _ _ — -- - �ITE l� �.�'�T�;4 LL r; ,3'w: FL xa4�E p{ y�� :'LI F:. w�'TE''•IhL �� Fe LT. ST{. — 1,�Li — �� � � _ ��^ � _f _I.1 _.- - _ _ —�:`—�' ' — _ 5I'r_R --' — — — — ii*� L� �T— — F_ -- - 15' 1� y _ }' �s�`cr�cr,� � I � � _ _ �. — r._�� � � ���v -�=. EI. � �• o-�; ;r;_ _� � } , .._ _v LT. ' �� I - }� � �_. � � ---. -I _ -"' i�, � -- -� -.� . �� - ..i�4"� I �'V_�=. - y � ___ __ 7fIF.". _ — _ _' ���� .. L�F'EW6iE _' ' ' V� - - �_�------- }� � +..� - - � � - _,ri��-� ---- ' lY ITE �3A ��'k -^'�"- } ---- : { ,4 3rJ4�' *�9�}'' 4Y � ` L������ �' `_'_— --�---� { �� �E{'1...�'�.'.ri' i'�� n E"f �L _ � � '�� f .� ��: �;v '�F .- �:.} ..#� �ITE 1�B �. � William (Bill) S. Zerman, Jr., PE Direct (919) 707-6755 From: Wanucha, Dave Sent: Thursday, September 14, 2017 4:19 PM To: Zerman, William S<bzerman@ncdot.gov>; Buncick, Marella <marella_buncick@fws.gov> Cc: Chambers, Marla J <marla.chambers@ncwildlife.org>; Steven.L.Kichefski@usace.army.mil; Jeff Meador (jmeador@rkk.com) <jmeador@rkk.com>; Cheely, Erin K <ekcheely@ncdot.gov> Subject: RE: R-2915E Baffles In Round Pipes AI I, I had time this morning to visit Site 22. There are three driveway culverts along the UT. The first is at the gate as referenced in the plans, 90 meters upstream of confluence with Naked Creek. It is functioning well with the invert below the stream bed and channel bed material within. The second culvert is 246 meters upstream of the confluence with Naked Creek. The outlet is perched 2.5 feet. The third is 65 meters further upstream of the second. The outlet is perched 3 feet. The UT continues for another 200 meters unimpacted up Mt. Jefferson where it ends. Habitat is similar to ra Site 27—low to poor quality, but improves as it enters the mostly forested areas upstream of the third culvert. I will rely on Marla and Marella to determine if perched culverts are a barrier to aquatic movement in this case and the stream segment length needed to facilitate passage. Let me know if you need anything further. Dave W Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha(a�ncdenr.gov NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Zerman, William S Sent: Friday, September 08, 2017 1:03 PM To: Wanucha, Dave <dave.wanucha@ncdenr.�ov>; Buncick, Marella <marella buncick@fws.�ov> Cc: Chambers, Marla J <marla.chambers@ncwildlife.or�>; Steven.L.Kichefski@usace.armv.mil; Jeff Meador (imeador@rkk.com) <imeador@rkk.com>; Cheely, Erin K <ekcheelv@ncdot.�ov> Subject: RE: R-2915E Baffles In Round Pipes Dave, I'm glad you had a chance to visit site 27 and I appreciate your input. Did you perhaps take a look at site 22? William (Bill) S. Zerman, Jr., PE Direct (919) 707-6755 From: Wanucha, Dave Sent: Friday, September 08, 2017 12:17 PM To: Buncick, Marella <marella buncick@fws.�ov>; Zerman, William S <bzerman@ncdot.�ov> Cc: Chambers, Marla J <marla.chambers@ncwildlife.or�>; Steven.L.Kichefski@usace.army.mil; Jeff Meador (imeador@rkk.com) <imeador@rkk.com>; Cheely, Erin K <ekcheely@ncdot.�ov> Subject: RE: R-2915E Baffles In Round Pipes AI I, I have a piece of information that may help the discussion for Site 27. After conducting an inspection at the C Section yesterday, I had some time to visit the E Section and walk the stream channel upstream of Site 27. The channel ended after 260 meters where the landowner built a duck pond which overflows into a culvert (see pictures). I'm not sure if it is worth the expense of baffles at this location. In my judgement, habitat would be considered low or poor quality (using DWR's Biological Assessment Branch's Habitat Assessment protocol), the landowner uses the channel to dump yard waste and it is a short segment. If the pond was not in play, I would mostly support baffles at this location. Dave W Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha(a�ncdenr.gov NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Buncick, Marella [mailto:marella buncick@fws.�ov] Sent: Thursday, September 07, 2017 10:17 AM To: Zerman, William S <bzerman@ncdot.�ov> Cc: Chambers, Marla J<marla.chambers@ncwildlife.or�>; Wanucha, Dave <dave.wanucha@ncdenr.�ov>; Steven.L.Kichefski@usace.army.mil; Jeff Meador (jmeador@rkk.com) <jmeador@rkk.com>; Cheely, Erin K <ekcheely@ncdot.�ov> Subject: Re: R-2915E Baffles In Round Pipes HI Bill, Thanks for looking into this. I will defer to Marla regarding the trout resources in Naked Creek because I have no other data about aquatic life in these streams. I will say that although this is a somewhat "urban" stream because it is right in Jefferson, it may make sense to maintain passage where possible for the tributaries because urban isn't very urban in this setting. Maintaining connection for all aquatic life in the headwaters helps support the downstream organisms, including trout. marella On Fri, Sep 1, 2017 at 12:02 PM, Zerman, William S<bzerman(a�ncdot.gov> wrote: All, As requested, we have revisited the feasibility of placing baffles inside round pipes to lesson pipe velocities and to promote fish passage and have determined that there are two sites, permit sites 22 and 27 that are possible candidates if the streams aquatic habitat and water quality justify the added initial expense and future maintenance efforts involved in placing baffles in pipes. Our "filter" for possible candidates was; • Sites with moderate to heavy debris potential were discarded since baffles help to retain debris and create flooding/maintenance issues • Pipes 42" and smaller were discarded due to possible flooding and maintenance problems related to smaller pipe sizes. See the attached table for a listing of pipe site locations initially considered for baffle instillation. Please review sites 22 and 27 and let me know by 9/18/17 if the streams aquatic habitat and water quality justify us moving ahead with further investigation/design of baffles in round pipes. If you think other team members, not included in this email, should weigh in on this, please forward to them. FYI-we are currently reviewing video inspections of a number of pipes on this project to help us determine if liners are feasible. � William (Bill) S. Zerman, Jr. P.E. NCDOT Hydraulics Unit Direct (919) 707-6755 From: Zerman, William S Sent: Thursday, June 22, 2017 8:50 AM To: Chambers, Marla J<marla.chambers(a�ncwildlife.org>; Wanucha, Dave <dave.wanucha(a�ncdenr. _gov> Cc: 'Steven.L.Kichefski(a�usace.armv.mil' <Steven.L.Kichefski(a�usace.army.mil>; Marella Buncick (marella buncick(a),fws.gov) <marella buncick(a�fws.�ov> Subject: RE: R-2915E 4B Thanks Marla. I'll check further into the feasibility of installing baffles in pipes. It will need to be done on a site by site basis. : William (Bill) S. Zerman, Jr. P.E. NCDOT Hydraulics Unit Direct (919) 707-6755 From: Chambers, Marla J Sent: Wednesday, June 21, 2017 4:35 PM To: Zerman, William S<bzerman(a�ncdot.�>; Wanucha, Dave <dave.wanucha(c�ncdenr. gov> Cc: 'Steven.L.Kichefski(a�usace.army.mil' <Steven.L.Kichefski(a�usace.armv.mil>; Marella Buncick (marella_buncick(a�fws.gov) <marella_buncick(a�fws. _�> Subject: RE: R-2915E 4B I am interested in Dave's input after visiting the sites. Currently, for Site 6 I'm leaning toward concurring with the drop since there is only a relatively short stretch of aquatic habitat upstream. For Site 22, not burying seems reasonable due to the 8% slope, however I believe there should be another consideration for reducing velocities and/or improving fish passage for this crossing and others. Marella asked if there was a way to put baffles in concrete pipes, and while the answer given was `no', I googled `baffles in round culverts' and found that it is possible. The first two resulting links are below, the first is from New Zealand and seems to be simple, inexpensive, and can be installed in the dry or wet. Those don't appear to take up much of the pipes capacity, especially the blue flexible type. There were a few videos demonstrating installation and effectiveness. : //www. ats-environmental. com/solutions/culvert-baffles/ http://www.dot.ca. o�q/o�d/fishPassa eg /Chapter-7-Retrofit-Design.pdf One of my general questions from the plan sheets is `why are the retained culverts lined with a smooth lining?' That seems counter to reducing velocities. Are there no other alternatives that would provide roughness? I recommend that baffles in round culverts be investigated for this project to see what benefits can be gained. Perhaps this can be used and studied on this project for potential use statewide. Other questions I have on the plan sheets and meeting notes are: Sheet 4— On the far left of the page, the drainage structure "outlets to concrete lined ditch", I was thinking the plan was to eliminate the concrete ditches. I may be thinking of another project, but it seems like it was this one. Can we remove the concrete lined ditch and install something that helps with velocity reduction and stormwater treatment? Are there others that are still on the project? Site 2A — Will the pipe still be perched? How much? I'll check with our biologists on trout waters. Marla **PLEASE NOTE MY NEW PHONE NUMBER** Marla Chambers // NCDOT Coordinator Habitat Conservation Program NC Wildlife Resources Commission c/o NCDOT 206 Charter Street Albemarle, North Carolina 28001 Direct Office Line: 704-244-8907 mobile: 704-984-1070 Marla.chambers(a�ncwildlife.orq ncwildlife.orq � • ' L�J �" From: Zerman, William S Sent: Tuesday, June 20, 2017 5:15 PM To: Chambers, Marla J<marla.chambers(c�ncwildlife.org>; Wanucha, Dave <dave.wanucha(a�ncdenr. gov> Cc: 'Steven.L.Kichefski(a�usace.army.mil' <Steven.L.Kichefski(c�usace.army.mil>; Marella Buncick (marella_buncick(c�fws.gov) <marella_buncick(a�fws.gov> Subject: R-2915E 4B Hi Marla & Dave, During the June 7th 4B meeting for R-2915E, there were two sites, #6 and #22 where we were discussing aquatic habitat issues and need your input. At site 6, the proposed 60" pipe (without a drop structure) has excessive outlet velocities so we are proposing a drop structure verses the use of a rock energy dissipator. We proposed a drop structure to dissipate outlet velocities thinking that aquatic habitat may not have had a chance to develop in the short upstream section of stream (�230 feet) from the spring to the pipe inlet. If we propose a rock energy dissipator, it would mean additional stream impacts caused by the length of stream we would need to protect with rock (probably +/- 25 additional feet). If you think that the aquatic habitat is there and that additional stream impacts are justified by providing a rock energy dissipator vrs a drop structure, we can make that change. Please let me know what your thoughts are. At site 22, we were discussing the need to bury the proposed pipe or not. Since the proposed pipe (�160 feet long) is on an 8% slope, we opted to not bury it. From previous discussions concerning the bury/not bury issue, I use 4% as a maximum slope to require the burying of pipe. The thought is that pipes exceeding a 4% slope may not hold material inside them. Please let me know your thoughts on this site as well. Steve & Marella, please let me know if the above does not accurately represent Agency concerns. Se�ffl William (Bill) S. Zerman, Jr. P.E. Project Manager-TIP WEST NCDOT Hydraulics Unit North Carolina Department of Transportation 919 707 6755 office 919 810 8990 mobile bzerman(a�ncdot. gov 1590 Mail Service Center Raleigh, NC 27699-1590 1020 Birch Ridge Drive Raleigh, NC 27610 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. Marella Buncick USFWS 160 Zillicoa St Asheville, NC 28801 (828) 258-3939 ext 237 fax (828) 258-5330 NOTE: This email correspondence and any attachments to and from this sender is subject to the Freedom of Information Act (FOIA) and may be disclosed to third parties. 10 ---------- ---------- ---- - - - - ' ----------------------------------------- ------------------------------------------------------------------------------------------__.__ ADDITIONAL INFORMATION AND COMPUTATIONS ` ; ; cse , oF z SITE DATA � Drainage Area ________ 2�9_ A�res (0.44 Sq. Mi.) Source _________________ USGS QUAD - FLEETNOOD o, � - ----- ---------------- � �� CULVERT SURVEY & HYDRAULIC DESIGN REPORT HISTORICAL INFORMATION: � � NEW RURAL - BLUE WDGE ' N' ----------- ------------------------------------------------------------------------------------------------------------------ . River Basin ----------- -----------------------------. Character ; LL; ---------------------------------------------------------- o� N. C DEPARTMENT OF TRANSPORTATION JASON STOPPER HAS LIVED IN THE AREA FOR 5 YEARS AND STATED THAT HIE HAS NEVER SEEN THE WATER RISE OUT OF THE STREAM BANKS. NCDOT BRIDGE MAINTENANCE SUPERVISOR, CHAD COX, HAS WORKED IN THE AREA FOR 20 YEARS AND STATED THAT SEVERAL VERY HIGH WATER EVENTS HAVE BEEN OBSERVED, HOWEVER, THE ROAD HAS NEVER BEEN AT RISK OF OVERTOPPING DUE TO THE HIGH FILLS IN THIS AREA. MR. COX ALSO STATED THAT - -------- --- -- -- -------- --------- --------- --------- -------- -------- --------- - --------- DEBRIS HAS BEEN REMOVED SEVERAL TIMES. - ---------------------------------'-------"-"""'-""'-"'. .. . . . . . .,_._...--'--'....-'---"--_"""' ALLOWABLE HW DEPTH ESTABLISHED AT 4.18' ABOVE EXISTING BASED ON THE FOLLOWING: __._STREAM IS NOT FEMA REGULATED. - THERE ARE NO STRUCTURES IN THE UPSTREAM FLOOD PLAIN. - THE EXISTING WSEL @ RS 1518.43 IS "CRITICAL". - THE PROPOSED WSEL @_ RS 1728_lb TIES TO THE EXISTING WSEL @ RS_1721.48. THE 6.68' INCREASE IN STREAM LENGTH FROM EXISTING TO PROPOSED IS THE RESULT OF REALIGNING THE CULVERT AND STREAM FOR THE PROPOSED CONDITIONS. RURAL Q: HC ____ 7� Qso__=_ _260_ cfs; A/L�=_ j279_4)f43560�/f5550��= 0.40, USE C 200.4 CF - 1.10 _ ____ Qio ___ 260 cfs_X 0.53 X_1.10 __ 152 cfs, SAY 750 cfs;_ ____ ____ ____ ________ - ---- Qso -- 260 cfs_X 1.70 -_2S6 cfs�SAY 290_ cfs - _- ----- ---- ---- -------- _ _____ Qioo =__ 260 cfs_X 121 X 1_10 __346 cfs, SAY 350 cfs;_ ..____._._Qsoo__, .260_tfs_X 1.82__X 1.10 =___521 cfs_ SAY 500_cfs�_ EXISTING 6' X 6' RCBC - 36sf; PROPOSED 84" SPP /WSP 32.4sf. LOSSES AT JBs WERE NOT COMPUTED DUE TO SUPERCRITICAL FLOW IN CULVERT. THERE ARE NO STRUCTURES UPSTREAM OR DOWNSTREAM OF THE PROPOSED SPP /WSP ADVERSELY AFFECTED BY THE PROPOSED 100 YR WSEL. DESIGN BASED ON STATEWIDE TIER GUIDELINES. Stream Classification (Such as Trout, High Quality Water, etc.) -_,______________C_7r_+ _ _ _ _ _ __ __ _ Data on Existing $tructure �_@__6' X 6' BOTfOMlE55 RCBC, HT. CROWN TO BED = 48', L= 175.7' _� . -' - ---- - -- ---- - Debris Potential: Low______Moderate.__.._.__High___X____ Data on $tructures Up and Down $tream UPSTREAM_f0_51 MI) ON PRIVATE DRIVE, 36" CMP HT. CROWN ---- ------- --`------- ---------------- TO BED = 20'� _DOWNSTREAM: j0_02 MIl ON PRIVATE DRIVE, 72" CMP, HT. CROWN TO BED = 6.5'. 'Gage Station No.._...____..__ N_ /A_____ _ Period of Records .________________N_/_A -------�------------ Yrs. Max: Discharge------------N-/9---------_c.f.s Date--------_N-�?------------_ Frequency------_N-LA HIStOfICOI FIOOC) IIlfOPl7latl0�1: (SEE ADDITIONAL INFORMATION AND COMPUTATIONS) Period of Date - Elev._________ ft.Est. Freq. __.-._..yr. Source JASON STOPPER _ Knowledge____5___yrs ------------- . -- --------------------------------- - Period of Date_____-_____ Elev._________ ft.Est. Freq. ___=____yr. Source _____..___._ CHAD_COX_.____.__..Knowledge_.20__yrs. Allowable HW Elev.--- 2969.40 (100-YR WSEL @ RS 1524_73) fF. Normal Water $urFace Elev. ____295�.8�` ft. ---------- (SEE ADDITIONAL INFORMATION AND COMPUTATIONS) FIELD Manning'S n: Left O.B. 0.70./0.035 Channel __ 0_05 Right O.B. 0.055 /0,07 Obtained -From ...QBSERVATION__ Non-Encroachment Flood Study/Status No_Fennn_Fis s7uov__._ _______ ___ Area Established? _____-_ -- - - - - ------- With Non- Without Non- Flood Study 100 yr. Discharge _-_ c.f.s.; WS Elev.: Encroachment _.._-____ ft. Encroachment ._____ :___._ fF. Area Area DESIGN DATA � Hydrologiml Method.:____ ______ NCDOT DRAINAGE CHARTS C2002 & C200.4 _ _ _ _ _ Hydraulic Design Method . . tieC kaS v 4 t.o Design Tailwater � Q -- - Lo -- ff.� (� --}t.; Q 7 9 {}.;(� 2.21 fi,� Q _2.8 --- ft. 10 ' S- 50 100 ' S00 ..�@ RS 1222.00 2941.0' 2941 9'� 2942 21' 2942.8' INY. IN EL.=2960.0', INV. OUT EL.=2938.5' (INVERTS ARE 1.5' BELOW STREAM BED) � - � SIZE & TYPE: 1@ 84" SPP/1 @ 84" WSP @ STATION 7524J3, 9.0' UPSTREAM OF CULVERT. - Inlet Control Outlet Confrol � FREQUENCY q Remnrks � � (ds) � HWiD H.W. WSEL H.W. WSEL 10 YR 750 0.6 3.5' 2965.0' 4.2' �� 2965J' O.C. .50 YR � 290 12 6.4' 2967.9' 6.8' 2968.3' .. O.C., (DESIGN) 1D0 YR 350 7.44 7.90' 2969.40' 7.87' 2969.37' I.C. 500 YR 500 2.3 72.5' 2974.0' 10.9' 2972.4' I.C. Is a Floodway Revision Required? ------------------ -------- --- wA .. -------------------------------------- -- Outlet Valocity (V�o) --.-_-_-- 72.7----_-------f.ps. Natural Channel Velocity (�/�o) -------,---- �,Q----....._..f.p.s. � � @ RS 1220.05 � Required Outlet Protection _____________________________CLASS 'I' RIP-RAP AS SHOWN INFORMATION TO �BE SHOWN ON PLANS �rva ��. iaKe Design: Discharge ______290_____ c.f.s. Base Flood: Discharge ______350 _ c.f.s. Overtopping: Discharge ____500(+) _ c.f.s. Frequency _ --- 5� ------ Yr. Elev. ----------2968_3----------iF. ; Frequency --------- 100---------Yr. Elev. --------- 2969.40---------�� ' Fre uenc soo (+) yr. Elev. 3008.62 {t � 9 Y ---------------- ---- -------- - SP @ SAG -L- STA. 351+85.66 , Y; DIVISION OF HIGHWAYS �� HYDRAULICS UNIT �! RALEIGH, N. C. o; w� pj I.D. No.----- R-2975C_--- Projed No. --------- 34518.7,4-_-----_-_- Proj. Station ------_-351+34--L ----------- O: - - - r., County ----------- ASHE_,--.--.-- Stream ---------------- UT TO. OLD_ FIELD CREEK-_.---_.------ Stru. No. -_-- ----.- �. - - �� On Highway--------US_HWY_221-_--_- Between --------SR_11o6-------- and -----------------SR_it77--------------- P; (RAILR0.4D GR?.DE RD.) (VJATER T,4tJK RD.) �; Recommended Structure � C� 84" STRUCTURAL PLATE PIPE (SPP)/1 @ 84" WELDED STEEL PIPE �WSP) m, ------ / -------- ------------2---1---------------------------- �O' 1.0" THICK, GRADE B w/HWs AND 1.5' SILLS AND BAFFLES. ! J� f� S___�_� U C JJ 7 o� -"-----------------------------------------------------4 --�---�-e ---5-------- -----------------------... N• o; Recommended Width of Roadway -_-_--__-93' (EP---EP)------------------- Skew -_-_-__'8� °_--------- o• o; o; Recommended Location is �� �^, ^' n_..,_i c.___ .., c__„., �..:_i:„,, r_,.. �:..,. 20' SOUTH OF EXISTING LOCATION ' ---------------------- ----------- � LL Statewide Tier � Regional Tier ❑ Sub-Regional Tier ❑ � g Bench Mork is _________ ________ BASELINE MARKER "-BL C15_'�7.21'.RT OF -L STA,352+15.82 �' --------------------------------------------------------------- Elev. --- 3003.47---ft. 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Six a�ks flodtl Sui[e 200 ,f 9 e B o; �INTB Aaieian. rvo�xn ca�oii�a z�sos �•J 7!//� ��� o"� �y\ �'.iIPQ s�po J� NC L.icense N0: C-1554 ^ � p w. tro^��,�� �'•. q,�s ' o. �J J' Desi ned b - --------------BENTON CARROLL, PE------_ ----- / � --.------. � �ve�0 F / �.,. Y --------------- -------- °----- � 0. �ij�,A 9 Y r _ o; O; Assisted b: BEN HENEGAR EI _ ___ � � • �; Project Engineer �: JAMES A_ BYRD, PE Date ,__ ____ ��76 � ------ ------ ------------ . a -- �; « •., �`'� e,� r �. , �°y ✓ �•., � I NE,,:' p �� � Reviewed by- ------ - - - --- - -- -------------------- '�'o°sti1 f S A. ���°e,, e �, �q-, F � �a�� � 'i��it^i,;,. [M�.r:p!.�i. €7i+a'�wu � ��'' � "��:���€ . ���..". 2� � t. � �,.; . ,