' - ' --\, ENGINEERED DRAINAGE PLANS

COMMERCIAL, RESIDENTIAL AND LAND DIVISIONS FEE DETERMINATION WORKSHEET

__ ~

Land Div No%uilding Perma No. A ~ K S . ? F ~ Y I I & K

Amount & Date Paid: Receipt No.:

Residential Engineered Drainage Fees: $90 Commercial Engineered Drainage Fees: $245 (minimum)

A COMMERCIAL AND LAND DIVISIONS PROJECTS 1

BEFORE DEVELOPMENT I AFTER DEVELOPMENT S.F.of I S.F. of

Description S.F. Factor Imperv. Description S.F. Factor Imperv. Surface Surface

- - X - X -

- - X =I X

I TOTAL AFTER DEVELOPMENT

TOTAL BEFORE DEVELOPMENT + + -+

Total after development - total before development = SF of added impervious surface =

SF of impervious surface x$.O1 = or minimum charge of $245.00

I IAD Letter Required m Y e s 0 No FEE

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7 q & A S S O C I A T E S I N C O R P O R A T E D

DATE: April 25, 2005

CIVIL ENGINEERING LAND SURVEYING

519 South Peabody Street, Suite 22 Port Angeles, Washington 98362

E-mail: zenovic@olympus.net

(360) 417-0501 FAX (360) 417-0514

Job No. 05131

TO: Clallam County Road Department P.O. Box 863 Port Angeles, WA 98362

ATTN: Ray Bradford

FROM: Steve Zenovic

We are transmitting the following item:

0 Attached dHand-carried 0 Under Separate Cover

I3 FAX

PROJECT: Single-family Residence for Herbold, Sleepy Meadow Lane Parcel No. 08-30-02-430540

COPIES PAGES DESCRIPTION 3 2 Drainage and Erosion Control Plan 2 5 Drainage calculations

Comments:

For your review and approval; please give me a call if you have any questions.

Thanks, Steve

Cc: Robert Herbold w12 copies of plan

I I

'ROJECT: Robert Herbold 519 S. PEABODY SUITE #22

.OCATION: 'ARCEL NO: 08-30-02430-540 DATE: 411 812005

JOB NO. 051 31 AUTHOR: AS

Parcel E, R.O.S. V24, P57, Sleepy Meadow Ln. PORT ANGELES, WA 98362

E Years Mean Recurrence Interval = Rainfall Duration (T) = 30 Minutes

Design City = Port Angeles 0.71 1 IncheslHour = m/(TAn) I=

m = 4.310

AREA ACRE COEFF.* SQ. FT. "A" "c" Q=C*(*A

0.300 0.1693 1 Meadow/pasture at 2-10% 141 558 3.250

3 Cleared/unimproved at 2-1 0% 57330 1.316 0.200 0,187 2 Meadowlpasture at >IO% 33627 0.772 0.350 0,192

4 Cleared/unimproved at > I 0% 287 0.007 0.300 01001

TOTALS 232802 5.344 11073 CFS

= INCREASED 10% FOR 25 YEAR STORM (.N MAX.)

c AREA ACRE COEFF.* SQ. FT. "A" "c" Q=C*I*A

1 House, garage, and shed 4902 0.113 0.900 4.072 2 Gravel driveway at 2-1 0% 5986 0.137 0.550 0.054 3 Existing gravel roadway at 2-1 0% 7720 0.177 0.550 0.069 4 Lawnnandscaping at 2-10% 25912 0.595 0.285 6.120 5 Clearedlunimproved at 2-1 0% 12981 0.298 0.200 0.042 6 Meadowlpasture at 2-10% 142225 3.265 0.300 0.696 7 Meadowlpasture at >IO% 33076 0.759 0.350 p.189

TOTALS 232802 5.344 '1.243 CFS

* = INCREASED 10% FOR 25 YEAR STORM (.90 MAX.)

INCREASE IN SITE RUNOFF = 0.169 ,0.107 CF$ ALLOWABLE = 10 %

REQUIRED ON SITE RETENTIONlDlSPOSAL = REQUIRED VOLUME FOR 30 MlN. STORM - 0.062 CFIj

112 Cui FT.

I House, garage, and shed 4902 100.00% 0.072 0.072 2 Gravel driveway at 2-1 0% 5986 0.00% 0.054 0.000 3 Existing gravel roadway at 2-1 0% 7720 0.00% 0.069 0.000 4 Lawnllandscaping at 2-1 0% 25912 0.00% 0.120 0.000 5 Cleared/unimproved at 2-10% 12981 0.00% 0.042 0.000 6 Meadowlpasture at 2-1 0% 142225 0.00% 0.696 0.000 7 Meadowlpasture at 210% 33076 0.00% 0.189 0.000

TOTALS 232802 0.072 CPS

c Herbold-2YR.xls Page 1 of I Intensity

I I

'ROJECT: Robert Herbold 519 S. PEABODY SUITE #22

.OCATION: Parcel E, R.O.S. V24, P57, Sleepy Meadow Ln. 'ARCEL NO: 08-30-02-430-540

PORT ANGELES, WA 98362 DATE: 4/18/2005 JOB NO. 05131 AUTHOR: AS

25 Yeam Mean Recurrence Interval = Rainfall Duration (T) = 30 Minutes

Design C i = Port Angeles I = 1.207 Inches/Hour = m/(TAn)

m = 7.370 n = 0.532 3 I e

1 Meadow/pasture at 2-1 0% 2 Meadow/pasture at >IO% 3 Cleared/unimproved at 2-1 0% 4 Clearedhnimproved at >I 0%

AREA ACRE COEFF." SQ. FT. "A" "C" Q=C"%A

3.250 0.330 1$94 /' 33627 0.772 0.385 0.059 ' 57330 1.316 0.220 0849 '

287 0.007 0.330 O.DO3

141558

TOTALS 232802 5.344 2.b05 CFS/

" = INCREASED 10% FOR 25 YEAR STORM (90 MAX.) I

AREA ACRE COEFF." SQ. FT. "A" "C" Q=C9*A

1 House, garage, and shed 4902 0.113 0.900 0!122,- 2 Gravel driveway at 2-1 0% 5986 0.137 0.605 0,100 3 Existing gravel roadway at 2-10% 7720 0.177 0.605 0,129- 4 Lawnilandscaping at 2-1 0% 2591 2 0.595 0.314 OL225' 5 Cleared/unimproved at 2-1 0% 12981 0.298 0.220 01.079 ' 6 Meadow/pasture at 2-1 0% 142225 3.265 0.330 1.300-

0.759 0.385 U.353/ 7 Meadow/pasture at >I 0% 33076

TOTALS 232802 5.344 d.309 CFS ''

" = INCREASED 10% FOR 25 YEAR STORM (.90 MAX.)

INCREASE IN SITE RUNOFF = ALLOWABLE =

0.304 10 % 0.200 CFS

REQUIRED ON SlTE RETENTlONlDlSPOSAL = REQUIRED VOLUME FOR 30 MIN. STORM =

@.I04 CFq 187 CU.IFT.

r I L L AREA CONTROL Q=C'I"A RUNQFF

1 House, garage, and shed 4902 100.00% 0.122 0.122 2 Gravel driveway at 2-10% 5986 0.00% 0.100 0.000 3 Existing gravel roadway at 2-10% 7720 0.00% 0.129 b.000 4 Lawnllandscaping at 2-1 0% 25912 0.00% 0.225 0.000 5 Clearedhnimproved at 2-10% 12981 0.00% 0.079 iO.Oo0 6 Meadowlpasture at 2-1 0% 142225 0.00% 1.300 0.000 7 Meadowlpasture at >IO% 33076 0.00% 0.353 0.000

232802 0.122 CF$ TOTALS

Herbold-25Y R.xls Page 1 of 2 Intensity

I I

s bRIFICE #l 2 YEAR STORM Head 1.50 18.00 "

FLOWRATE (QI) = CFS ORIFICE #I DIAMETER = IN. ->USE -]IN. ORIFICE

)RIFICE #2 25 YR STORM

H2 (TOTAL HEIGHT ABOVE ORIFICE #I) = 2.00 FT. FLOWRATE (Q out 2yr orifice) =

FLOWRATE (Q out 25yr orifice) = HPB(HEIGHT ABOVE ORIFICE #2)

ORIFICE #2 DIAMETER =

CFS CFS

IN. ->USE [ T I I N . ORIFICE 6.00 '

Herbold-25Y R.xls Page 2 of 2 Intqnsity

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PLAN DETENTION POND ~ ~~

NOT TO SCALE

x 3'-0" MIN. x

SECTION DETENTION POND OVERFLOW NOT TO SCALE

24" SOUARE x 4' THK.

DETAIL BASIN OUTLET STRUCTURE NOT TO SCALE

R = 15' MIN. 4" TO 8" QUARRY SPALLS

PROVIDE FULL WIDTH OF INGRESSfiGRESS AREA

DETAIL CONSTRUCTION EN TRANCE NOT TO SCALE

#4 REBAR,

---STEEL RIM FILLET WELD REBAR ---

3" WIDE X 16" THK. STEEL RIM; PROVIDE WITH SNUG FIT OVER CMP OUTLET STRUCTURE

TO RIM-AT EACH IN TERSECTI ON POINT

LEAVE 18" TAIL ON DOWNSTREAM SIDE TO PREVENT EROSION FROM OVERROW, SECURE TO GROUND WlTH STAKES. STAPLES OR ROCKS

CROSS SECTION NOTE: LENGTH AS SPECIFIED ON PLAN

MAKE 12-0 EROSION CONTROL WATTLE BY ROLLING 'SEDIMENT

STOP" FABRIC (BY NORTH AMERICAN GREEN)

SECURE WITH

NOTE: WATTLE MUST BE IN INTIMATE CONTACT WITH SOIL TO PREVENT WATER FI FVATlON FROM RUNNING UNDERNEATH

8" NOM.

DETAIL EROSION CONTROL WATTLE NOT TO SCALE

DEPRESS TOP OF BERM 6" NOM. AT OVERFLOW LINE OVERFLOW BOTTOM. SIDES. AND FACE OF BERM AT OVERFLOW WITH 6" THICK LAYER OF OUARRY SPALLS

EXISTING GRADE

DETAIL FABRICATED GRATE NOT TO SCALE

A U CUT AND

TO BE 3 TO 1 6" QUARRY

SPAUS

BERM CONSTRUCTED OF COMPACTED

NATIVE MATERIAL 6" HOPE PIPE OUTLET; PROVIDE

WATER-TICHT CONNECTION TO CONTROL STRUCTURE

SECTION DETENTION POND NOT TO SCALE

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FPRlL 2005 'LEI i -

HerboldDrainogePlan

051 31 JOE NO:

2 OF 2