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HomeMy WebLinkAbout20130223_U-2524D - Greensboro Outerloop Culvert Summary_20150903Carpenter,Kristi From: Sent: To: Cc: Subject: Wanucha, Dave Thursday, September 03, 2015 8:37 AM Lauffer, Matthew S Elam, William H; Lee, Craig J; Bailey, David E SAW RE: U-2524D - Greensboro Outerloop Culvert Summary Hi Matt, Thanks for sending the data. The proposed sills and baffles appear to be consistent with DOT's guidance on the subject. Will these culverts possess high flow barrels and flood plain benches, and if so, what type of material will be used for backfill (if they are planned to be backfilled)? Do you have a time estimate for when a permit modification will be submitted for the D section? I have copied Dave Bailey with the Corps for his review and comments. Dave B., These are the culvert data of which we spoke yesterday. Dave W Dave Wanucha NC DENR Winston Salem Region Office NC Division of Water Resources Transportation Permitting Unit 450 W. Hanes Mill Rd, Suite 300 Winston-Salem, NC 27105 Cell (336) 403-5655 Office (336) 776-9703 Dave. Wanucha(a�ncdenr.gov E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Lauffer, Matthew S Sent: Tuesday, September 01, 2015 4:10 PM To: Wanucha, Dave Cc: Elam, William H; Lee, Craig J; Lauffer, Matthew S Subject: U-2524D - Greensboro Outerloop Culvert Summary Importance: High H i Dave, Per our phone conversation a couple weeks ago, I wanted to let you know what we were going to recommend for the culverts on U-2524D near Lawndale with respect to sills and baffles. The following is a summary of the structures and proposed configurations: Drainage Approximate Area Length Width (Square Culvert ID (Feet) Size Slope Burial Sills Baffles of Stream Miles) Culvert 1 1430 8' X 8' 1.04% 1' Yes No 5-6' 0.15 Confluence of two streams - Culvert 2A 363 11'X9' 1.86% 1' Yes Yes (25 foot Centers) 4-5' and 5-6' 0.38 Confluence of two streams - Culvert 2B 712 11'X9' 0.50% 1' Yes No 4-5' and 5-6' 0.38 Culvert 3 1214 11'X9' 0.59% 1' Yes No 10' 1.12 Culvert 4 335 7'X8' 2.07% 1' Yes Yes (20 foot Centers) 6-7' 0.22 You will notice that the lengths of the culverts are long and that sills are used on all culverts and all culverts will be buried a foot. Baffles will be placed on Culvert 2A and Culvert 4 where slopes are near 2%. Baffles will be placed across the entire box with no additional reduction in stream width. Stream pictures are below for reference. Please let me know if you concur with the proposal or would like to discuss further. My phone number is below. 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' .� � �'� ��i �A � �b'` � �' .� , '';i. �-x�'� 4� _�i � Ya�''.� ��` '� �7 k � . -�T _ �. ' . ����,;�'�''h�{}�a .r�� �'i ,. + � ti,'*M1+� j i. +h� � � A•F•�?���� �M1 r�{ . - . .. rii tti.4+�4 �4 t . r` � ' I ••� y,... � i '.�� . — _ . ' 4ry � 7 d�4``��: -�+}�.4- . . �'~_�� 4_ ' • 5 * .� 4 ' � _ !�� ; . . .. � `�+':t�t � . � '.�t-�'� 5 ' :�fi 'f't' h.'i v..�V. ir'�i i_ -. �JLa Stream Up stream of Culvert 4 5 .�.��� :Y,�-�..'�,�i .�µ ;i � ��� � .. i� . . � � . .�. yM1� i�.. . ��� y; _�#4�h-�w . ����.j .k . F µ� ' �� t` Gi�• � � '.J�. �. � ,F i ��" �r, �� . Matthew (MattJ Lauffer, PE, CPM Asst. State Hydraulics Engineer Central Region, Divisions 5,7,8,9 Highway Stormwater Program Hydraulics Unit North Carolina Department of Transportation Phone:919-707-6703 Cel I: 919-621-0443 Fax: 919-250-4108 Email: mslauffer@ncdot.gov Mail: 1590 Mail Service Center Raleigh, NC 27699-1590 Delivery: 1020 Birch Ridge Dr. Raleigh, NC 27610 Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. 6 ' �l � � �. � � �t .�. 1�, iR�F. yY�' ,b'�ihF � „. �R+ ' �� .— ��� t >� �+ t��4�y', � � � .a x ., `S E>a�\ d: ��l�� '� � d� ,;�!° � n#++ti � h .. � i` 'op$ 's- ` 2 � ` it'�, �� �,� �`` � -� .�y,'`, . �` � �� '� �} ".z� >`: -� �-:n �.e ` � ^ ' � , - �s •t i �. � ,_ �i,�'' �i�� h����� � S I I� V T �, � � � �n �: �,� C � : � � �� � ��'�;1� C � � � � � �� � ��� :� �`� +V.. t.�" �: 5 � � : � ,� . hc . a . �i � .r 3� :' i"''��� +.^ � i K� y :t ��j , : _,. t w A��� "�' `" � , Y.- �1 +r; � '. =�:d-�t'..y ��, -rr-; ;. r�, '�; �' >, �`� � ^ r 'Y. � . � �� � � � '� � �:� �; � � b � S " :��', � w. , � �� ,„� ;:; � �Y"��" ..' 3 ^ � ��*_,�. y� ,`�`�a �, �ct ""�;ti"� .a'�. �e ; .�a ?'.i �a.� "r�� � � �. r �� � I � _r �� p� �.'6 . �t�f� �� �s�'a'� , ' .� �- , -���': ��� � ._: � ,� � ""�A�. � <_�.� . <a �.' , s.���°"'_�.;