20171363 Ver 1_SW Diffuse Flow Plan_20171026

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BUFFER DRAWING
SHEET 2 OF 3
ALLOWABLE IMPACTS ZONE 1
BRIDGE
� ALLOWABLE IMPACTS ZONE 1
ROAD
� ALLOWABLE IMPACTS ZONE 2
30' 0' 30'
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PROIECT REFERENCE NO. SHEEf NO.
17BP.4.R.77 4
RhV SHEEf NO.
ROADWAY DESIGN HYDRAULICS
ENGINEER ENGINEER
PRELIMII�ARY PLANS
no mor i�sc pOR CONSTRU('TION
� 1223 Jones Franklin Rd.
� Rolei h, N.C. 27606
� S ETHERILL �ice se No. F-0377
ENGINEEHING
- Bus: 919 S51 8077
Fax: [phone]
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CN2/5�lE QESR7l - p5/CPS - CONSTMR,`f�O�Y OBSEM'ATbtl
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STABILIZATION 0/ ���/
SEE DETAIL B ��
� C� BANK PROPOSED O SEE SHEET 2A-1 FOR DRAINAGE DETAILS
� ��,HARUN La H�RTC�N � �� 'I STABILIZATIONEXCAVATION WILLIAM Va LE�GFTT ET UX SEE SHEET S-1 THRU S-?? FOR STRUCTURE PLANS
� -- � 1_._ SEE DETAIL C
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� __ �. II- L-_. -. - -'- -_�- —_'_ - _ _. -'- - --�- �_ l__i I I i i I_- -_ � ___ -. -_ J _-�------- -- ---_ �� !---
�i i I i il I i il il il i I i i i i i I i il il ir --- i : i �,_ � _-. --�--- i ----��-i i-I i i �I �i i i i_ - � - � - -- i ---
= 78 - — -�- � �, - - � �- � � � � - wo - � � �- 78
STA. 15 + 95.50 -L- � ' ___ -_, I I � r
ol �o , _ I_I_ _ PI = 13+66J6 . _ ____-------- -- -- --- - _ _ SKEW = 400 -�- -- _. ! PI = 17+90.00 - � � � ,_ � �_ — � +�n _ _.
ra0i � o� EL = 65.38' _ � ELEV. � 66.14 � EL = 66J9' i_� i � � c9 0. v, � i
� c9 +ao !� __ __ VC = 272' I i I I I �@90' - 33" BOX BEAM � � VC-- 276' i I l : �•^�, _._.- _.
� 72 Z r � I _�� _ - � _ - li W/ 4'0" CAPS -•-°- I � , ,. . .� I� . �- �� - � _ _ "� _-�-�-- � 72
� - N• , K 115 K 115 ��.
� �Q� i _� � NO DECK DRAINS REQUIRED I I-'i /_� u�ww � I
�o . . mv~iw . . . !. !-�-��.� ��--�.---_.. . . . RO�A WAY �BRIDGE ED . _�-.�, . . . .EXST�ING . _ �_ .. . ... . . . � � --TT� .
� 66 GRADE BRIDGE a/ EXISTING --i�_ 66
° � � �" (+)2.72§%�° ROADWAY I— i i_
E - — �-)2.0286% (+)0.3319% � — — — — — — — I : --- — I —r — — — —' — (+ 0.3319% / / j . i GRADE i -� !i
— � CUT OFF EXISTING i I i i i i i
o EXISTWG '- �-- �� ABUTMENT AND �� T— i ��
�- 6O ROADWAY ' � � � EXCAVATE TO - i ! � � 1 6O
� � . . _ — — _ LOWEST CHORD -- / � � NATURAL I _L.-- --�I �_J_ _ �_u _ J
GRADE — — � ELEV. 59,5. - �
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i I � GROUND �i - ._il ._ k._ _ i i _. . i _il _ i _i il _i
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� NATURAL , CLASS II RIP. RAP -.,.— I 2� TYP. � NATURAL i � L L_L1_LJ_L1J_ �i L � �i �i i� ii. ,I
� GROUND .. - iN/6E07EXTtLE � � �..; ( )_- LfFT i_
� � � r _�_' _ RI NATURAL � i '-- (2 FT. TH ICK) � ya � � _ �_I_ _�_ � �_ _�_i_i_� �_I_�_ _I_� _� N-i 5 �+
� �� � (SLOPE NORMAL � GROUND i- � i i i i �
� .�I-L_�_ I I- ��L_ I � I I/ RIGHT _
TO END BENT � CLASS II RIP RAP � i
= I �_ � � ,� � � 5' (TYP.)
��� I I i EFQUND {_�{-F_ I� �L._i MINIMUM KEY-IN � I I�� �� � � ��T �Q
� � +'� PROP. FEMA 100 YR. � � � I �
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= 1 1 i i _ ELEV. = 59.8 � -i _ _-� -� -�-_ _ i li
OF RI P RAP = 3.5'
� A CO T O R { -.- ! � Il I �I < Q100 PROP. 100 YR. � _
a�o WAS NOT PLOTTED SINCE THE I! � CUT OFF EXISTING � I I� T I!�I I� I i T i j I�
1 r. _I _ . : . ABUTMENT AND �� I I SCOUR ELEV. = 59.3 �_ ���_ �__. I � ---- ��---.
DEPTH BELOW THE PROJECTED T L+ i i
m _ i I— _. I EXCAVATE TO I I 1 I Q500 PROP. 50 YR. — _ — T.
� NATURAL STREAM BED IS 1 - ELEV. = 58.7 � ,1
42 , � ELEV. 58.0 Q100 � � / � SCOUR , , , , , , , �FZ
O LESS THAN THE EXISTWG CHANNEL � i__. i L� i_I_:__ _ I_;__ 1_I_ I___I_ L_I_I__.
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� AS SHOWN IN THE PROFILE � a � �i I i � i �I i � � � SCOUR � I � � �� � I i__ � � �� ���� I � -I I I
� � � _ . _� , �!i —�- �i _ !i � Q500 � � i TOTAL APPROXIMATE i-�i ._ _ __ i !i _ -- �- - — � � � i
NWS ELEV. =53.9 i I
� 3�j ---- —�-�� � I---- --�. SCOUR � EXCAVATION = � �-- � --�i_ �_�_ _T�i - � 36
L L_ _ _ WA7Ek SURFACE � ) i� i i -i
M �1�7 i I j ��� �� 1 I�1��� ' I��� i� � L i � , i � i I i_ 305 CY +/-
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� i_' _I_� I -. , I _�- - _ _ , _, - - - I ON DATE OF SURVEY -, -. .
-- - -- --- ---,- . .- ---i- ---- --i ---- ELEV. = 529 (b-1-17) •----
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