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SITE DATA I
ADDITIONAL INFORMATION AND COIWIPUTATIONS o: ����
Drainage Area ,,,,,,,,,1:93 SQ: MILES Source ......... USGS QUAD ALARKA a:;
���� CULVERT SURVEY & HYDRAULIC DESIGN REPORT
�:
HYDROLOGY LITTLE TENNESSEE RURAL "'
River Basin .......................................... Character .......................................................... �: N. C. DEPARTMENT OF TRANSPORTATION
....................................................... ..................................... �.
DRAINAGE AREA = 7.93 SQ.MI.-> LOCATED 100% IN HYDROLOGIC REGION 2 Stream Classification (Such as Trout High Quality Water, etc.) CLASS."C�� ...................................... Y DIVISION OF HIGHWAY$
. . . ........ ... . ............. . .... .......... , � H S T
YDRAULIC UNI
RURAL BLUE RIDGE Data on Existing Structure ......... �. SPAN...�..16'-6",. TIMBER: FLR, JOIST,. E._BTS,. CAPS, POST & SILLS �: RALEIGH N. C.
............ ............ ... .... � ,
SIR 2009-5158 X... u'
................................. ............................................................ De6ris Potential: Low... Moderate.........High........ p:
o.n9 a.nv ��
QZ= 110 DA = 710 1.93) = 184 CFS -> (rounded per NCD�DT memo 1988) 180 CFS � SF 550220 � 17BP.14.R.711 -L- STA 72+63.50
(� ( Data on Structures Up and Down Stream UPSTREAM: NONE DOWNSTREAM: BRIDGE 550318; PRESTRESSED I.D. No....... -........... Pro ect No. .... ....... . Proj. Station . .......... ..
......... - ............................
..... . U.�49. . .. .... 0.]49 '
QS- 209 (DA) 209 (1.93) 342 CFS -> (ro�nded per NCDOT memo 1988) 340 CFS CONC. CORED SLAB, 1 SPAN @ 37', PPC CAPSM-PILES @ 7'�CTS, APPROX 1050' S ALONG SR 1353 OVER MATLOCK CK. � County MACON Stream ........ �TLOCK CREEK $tru. No...?Z�......
.........0,)36 ................0.)]d — ...............................
........ ....................................................................................................................................
... ..........................
o � � MISTY VALLEY RD
Q�o 288 (DA) 288 (1.93) 467 CFS -> (rounded perNCD�DT memo 1968�470 CFS NONE ' On Hi hwa (..,TLOCK.CREEK RD.) ge}wee� HOWELL RD. ond .......................:................
...' .............u.iii ............- u.iii .................................................................. .... Gage Station No................................. Penod of Records .........wp................................yrs. ,�: 9 Y..
R- 398 (DA) = 398 (1.93) = 641 CFS -> (rounded per NCDOT memo 7988) 650 CFS v'ii: Recommended Structure ..36': 76'-2" X 5'-1" ALUMINUM BOX CULVERT; CULVERT IS TO BE BURIED 1' WITH
Z5 Mox. Discharge ........ w? .... .......... c.f.s Date......... wA.............. .. Frequency ....... wp.......... .
............ ........diie'.... . . ..--b:rie ........... ... ... .... .. ............ ..... . ........
QSo 479 (DA� 479 (1.93) = 768 CFS -> (rounded per NCDOT memo 1988) 750 CFS � .......... .. ....................
....... ........................................................................ Historical Flood Information: N: ... ..... ............. . ...... ...... ...iTH 8. MIN WIDTH
..... U.113 ................0.�13 ........ SI 5 EA E D A LO I L
(��oo= 575 (DA) = 575 (1.93) = 919 CFS -> (rounded per NCDOT memo 1988) 900 CFS Period of N Recommended Width of Roadway.....?...-.�0' LANES WITH 3' SHOULDERS ,. Skew ...........60�............
... ... .. . ...... ..... ..
a.iav ................a:iov ...... ...................................... ........................ Date............ Elev...........N.Est. Freq. ........yr. Source SHAYNE BOATWRIGHT Knowledge..??...yrs. o:
4soo- 661 (DA) = 661 (1.93) = 1054 CFS -> (ro�nded per NCDOT memo 1988)1100 CFS NEVER OBSERVED OVERTOPPING OR OU7 OF BANKS Period of �; Recommended Location is (Up,�t Down� Stream from Existing Crossing. . ON SR 1351
.................a:�bb................a.iae.................................................................................... Date............ Elev...........k.Est. Fre r. Source Knowled e m
q. ........Y ....................... 9 .. .....yrs.
Qsaa= 794 (DA) = 794 (1.93) 1261 CPS -> (rounded per NCDOT memo 1988) 1300 CFS � � Stntewide Tier ❑ Regional Tier ❑ Sub-Regional Tier �
..................................... ..................................................................................
Allowable HW EIevDRAINAGE,DIVIDE,OVER..LEFT.BANK,2317.2{�, NormalWaterSurface Elev. ,.,_�314:0 {� u_
a Bench Mark is ..BM2. -. BL STATION. 8+43.00,15' RIGHT� S INCH SPIKE SET.IN. ROOT OF 20" POPLAR. TREE. .
......... . ............... . ............. ......... .............. .. .... ............ Manning's n : LeR O.B. 0.040 0.040 0:060 FIELD OBSERVATION
Channel .. Right 0.8. .. Obtained From ........ ..........
ADDITIONAL NOTES: NO STUDY, ZONE "X", FIS PANEL 6588, EFF DATE 05-04-2009 �; ..... Elev 2318.86 {}, Datum ,,,,NAVD 88
................................................................................................................... Flood Stud /Status ...................... ...... Floodwa Established?.....NO
Y Y � T C ON-SITE TEMPORARY PHASED DETOUR
-THIS PROJECT FOLLOW5 SU6-REGIONAL TIER GUIDELINES:. ................................... With WithouT �. emporary rossing ..........................................................................................................
. . ... Flood Study 10o yr. Discharge .--.wq._. c.f.s.; WS Elev.: Floodway .... W�`......ft. Floodway ....!'�A.......ff. m:
-PROJECT COMPLIES WITH LOCAL FLOODPLAIN MANAGEMENT REGULATIO�NS @River Station N/A ^
_ .......... ........... .... ........... ...... . ....... '": , s;� ;�,� '9 I T�-- . . �� , �
EXISTING OPEN AREA:31 SQ Ff,REVISED OPEN AREA:53 SQ FT DESIGN DATA o _ � � ��'�E ��Y�
...... .. ..... ....... .................. . ............................... Z �-� -
USGS RURAL REGRESSION EQUATIONS - SIR 2009-5758 t •' � E v' ` � '� '`��-
-EXISTING LEVEL OF SERVICE IS BEING MAINTAINED Hydrologieal Method _..... _. ..... .......... „ � � �',r � �� �, �� x.� re ,
..................... . . . �
HEC-RAS VERSION 4.1.0: SP-550220 MATLOCI< CREEK SR 1351 � ' "
.�A�t �,
-STRUCTURE WAS MODELED AS A 13J6'X5.08' BOX CULVERT WITH EFFEC1fIVE FLOW AREA 53 SQ FT Hydraulic Design Method ............................... ...... ..................... .. ........... o ��� ,-� „. --
.................................................. _ ............................ _............................................... " _ �
EFFECTIVE SILL HEIGHT 1.24 Design Tailwater :(� 0 4.3 ft.; �5 5.4 ft.; QSa 5:5 oa 5.69..... soo ...6.2 . . o . . q � i�
- ' k.;Q fr.; Q H.
........... .... . ..... ................ .... . . ..................... . ,.
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................................................................................................... - - - ............................ YP ( ) . .
q Remarks N � - .. � �7n �'. �" �qp ; � ' �� .
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........ . . ...""". ............. ......... Y Q . x� � " � - .... .
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Is a Floodwa Revision Re uired? ..............wp.................... ' �
............................................................................................................................
� � _ .,»,
Outlet Velocit "�
Y N�o) ......................6.1... f.p.s. Natural Channel Velocity (Vio) .... �:.....................f.p.s. W "iai '�
.............................................................................................................................. ....... ' .
q NONE REQUIRED � THE LOUIS BERGER GRpUP, INC. a``�����^'°` s� (�4as'�
Re uired Outlet Protection .......................................................................... v; s, r
.....................................................................................................'--............................
Y: Designed by : .................................................. .,ae,,> 9 � -r'�:J �s•.
INFORMATION TO BE SHOWN ON PLANS V: Date ..APR: 16, 2o�a ;� Q2 v� _; ;
O: • ANDY DAWKINS /RODNEY KNIGHT """""" ^
........................................................................................................................ WS EL. Taken @ River Station 7042 F Assisied by: .................................................. = '/�n� =
Desi n: Dischar e 189 ....... c.f.s. Fre uen 2 2316.5 -� e :,
9 9 .... q ry ......................yr. Elev. ............................ft. � • ��1� ^
...........................................................................................................
�: Project Engineer : RONALD D. FERGUSON, PE, CFM ���o �o �;
Base Flood: Discharge ...900_...._.. c.fs. Frequency.......100....._..._yr. Elev. ..........?.�19•.$8........ft. E ...,�/ ,T� �J�= a�9�°:;m....;°°VJ`'oa•��'
. . cinE �
................................................................................. - ....._. o Reviewed by: !S«'?':... �. ?:?--......= .............. '� 0 �� `�.
2+ 2377.2.........ft. � . � .5/cy�� ��°°!!eiis o °�`�.
Overtopping: Discharge ...264....... c.f.s. Frequency....... yr. Elev . ................... ,n
NOTE• OVERTOPPING OCCURS fIRST AT DRAINAGE DIVIDE
*' VELOCIN TAKEN FROM NATURAL RUN, XS 974 *EXISTING LEVEL OF SERVICE IS BEING MAINTAINED.