AD-R142 876 NATIONAL PROGRAM FOR INSPECTION OF NON-FEDERAL DAMS I/iWUEPRiRUG RESERVOIR DR..(U) CORPS OF ENGINEERS WALTHAMMR NEW ENGLAND DIV JAN 88

UNCLASSIFIED F/G 1313 NL

moflflflflmfls

11111- 1.0 1W-

1.0 1"&.12 1.

*11.25 11.4 01.6

MICROCOPY RESOLUTION TEST CHART

HAMMNA BUREAU Of STANDARCS-1963-A

5[ CT ASSIFICATION OF

THIS PAGE PAEe /LsREn C01d

READ 1NSTftCT ~rSREPORT DOCUMENTATION PAGE B' ,BEFOE COPLLNG FORM

. EpORT NUMBER 2. GOVT ACCESSION NO. RECIPIENT'S CATALOG NUMGER

CT 00086 t_1___- I __4_ S_ _ _

& TITLEr. (and $ub1l0) S. TYPE OF REPORT & PERIOD COVERED

Wepawaug Reservoir Dam INSPECTION REPORTWepawaug River Basin, Orange, Conn.

NATIONAL PROGRAM FOR INSPECTION OF NON-FEDERAL 6. PERFORINOOR. REPORT NUM.ER

DlAMS7. AUTHOR(S) S. CONTRACT OR GRANT NUMMER()

,U.S. ARMY CORPS OF ENGINEERSNEW ENGLAND DIVISION

.0 S. PERFORMiNG ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT, TASKAREA & WORK uNIT NUMSERS

I I. CONTROLLING OPFICE NAME AND ADDRESS 12. ROPORT DATE

DEPT. OF THE ARMY, CORPS OF ENGINEERS January 1980

NEW ENGLAND DIVISION, NEDED IS. NUMBERorPAGES

I 424 TRAPELO ROAD, WALTHAM, MA. 02254 45C1 14. MONITORING AGENCY NAME & AOORESS(it diteael Irom ConIiaoleid attics) IS. SECURITY CLASS. (of ee teot)

UNCLASSIFIEDIge. DECLASSIPICATION/OOWNGRADING

SCMIEDULE

1I. OISTRIBUTION STATEMENT (ol 1a Baepw.)

APPROVAL FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITEDDTIC

~ ISW SUPPLEMENTARY NOTES

LL Cover program reads: Phase I Inspection Report, National Dam Inspection Program;however, the official title of the program is: National Program for Inspection of

. . Non-Federal Dams; use cover date for date of report.

.4I, S.19. KEY 010S (Coeinaw , en eve 0dd of noesey and 4deI block fc Rm bee)

*1 DAMS, INSPECTION, DAM SAFETY,

Wepawaug Reservoir

Orange, Conn.

Wepawaug River Basin

20. ABSTRACT (Coneinuo an mvelre aide Of neOeey emid Iden ify by bloch oimbU)

The Wepawaug Reservoir Dam is an earth embankment dam with a 90 ft. long concrete

4 • ogee spillway. The length of the dam, including the spillway, is approx. 375 ft.

The earth embankment has a top width of 15 ft., upstream and downstream slopes

of 2 horizontal to 1 vertical, and a maximum height of 16 ft. above the stream

bed. A concrete core wall with upstream and downstream batters of I horizontal to

24 vertical and a top width of 2 ft. extends down to rock. Upstream slope protection consists of riprap placed to within 6 inches of the crest of the dam. Down-

stream slopw protection consists of heavy orowt-h nf

DD I Fjp", 1473 ELOITIOMOF I OV 68IS OBSOLETE 8 7 1 8AN 84 07 11 084d'.'-"

WEPAWAUG RESERVOIR DAMCT 00086

r

WEPAWAUG RIVER BASINORANGE, CONNECTICUT

j--

I"PHASE I INSPECTION REPORT

INATIONAL DAM INSPECTION PROGRAM

049-02 84 07 11 084 January 1980

' ,,r - ' ,',', ? ' ,'', ", '*,,' ';, .-- *,,,= ,; ,. ", .;, ' . ';.. * . %. -*' V. " -; .".: " ", .. ,: ',' . T :i ".:. .-. " ,:. .

ROALD HAESTAD, INC.CONSULTING ENGINEERS

37 Brookside Road 9 Waterbury, Conn. 06708 9 Tel. 203 73 3-9800

January 4, 1980

Department of the ArmyNew England DivisionCorps of Engineers424 Trapelo RoadWaltham, Massachusetts 02154

Attention: E. P. GouldProject Management Division

Re: Wepawaug Reservoir Dam

Orange, Connecticut

,Gentlemen:

On November 27, 1979, the Wepawaug Reservoir Dam was

inspected by Donald Smith, P.E., and Ronald Litke, P.E., of

this office, and Dr. Gonzalo Castro, P.E., of Geotechnical

Engineers, Inc.

Following the inspection and subsequent investigation

we concluded that the dam should be reclassified as having

a low hazard potential.

We are enclosing a brief letter report substantiating

our findings.

Very truly yours,

ROALD KESTAD, INC.

By

oaid Haestad

RH/sdcend.cc: Geotechnical Engineers, Inc.

Gonzalo Castro, Principal

TABLE OF CONTENTS

DESCRIPTI ON

EVALUATION OF HYDRAULIC/HYDROLOGIC FEATURES 2

OVERVIEW PHOTO 3

LOCATION PLAN4

APPENDIX A ENGINEERING DATA

: L APPENDIX B PHOTOGRAPHS

* APPENDIX C HYDRAULIC/HYDROLOGIC COMPUTATIONS

APPENDIX D INVENTORY FORMS

%F

I

I

DESCRIPTION

WEPAWAUG RESERVOIR DAM

CT 00086TOWN OF ORANGE, COUNTY OF NEW HAVEN, STATE OF CONNECTICUT

ON THE WEPAWAUG RIVER:: L OWNED AND OPERATED BY THE NEW HAVEN WATER COMPANY

FOR WATER SUPPLY

P The Wepawaug Reservoir Dam is an earth embankment dam with

a 90 foot long concrete ogee spillway. The length of the dam,

including the spillway, is approximately 375 feet. The earth

embankment has a top width of 15 feet, upstream and downstream

, slopes of 2 horizontal to 1 vertical, and a maximum height of

16 feet above stream bed. A concrete core wall with upstream

. and downstream batters of 1 horizontal to 24 vertical and a top

width of 2 feet extends down to rock. Upstream slope protection

consists of riprap placed to within 6 inches of the crest of the

dam. Downstream slope protection consists of a heavy growth of

grass.

The outlets consist of a 30-inch diameter blowoff, and a

4-inch diameter outlet utilized to maintain downstream flow.

Both outlets are controlled by manually operated gates located

in the gate house at the left end of the spillway.

Water is diverted from this reservoir to Maltby No. 3

Reservoir via a diversion tunnel. Flow through the tunnel is

regulated by a manually operated gate at the intake structure

located at the east side of the reservoir.

The general condition of the dam appears to be good.

"i

EVALUATION OF HYDRAULIC/HYDROLOGIC FEATURES

The Wepawaug Reservoir Dam has a tributary watershed of 7.7

square miles, a spillway capacity of 1800 cfs, and a storage capa-

city of 117 Acre-Feet with the reservoir level at the top of the

kdam. Approximately 100 feet downstream from the dam the Wepawaug

River flows under a Connecticut Route 34 highway bridge.

A dam breach analysis was made and routed through the down-

stream reaches. The peak discharge of 6200 cfs cannot be passed

through the bridge opening. The roadway is 4 lanes wide and is

2 feet above spillway level. It is unlikely that the road em-

bankment would fail if overtopped.

The flood routing downstream, without taking the highway

embankment into consideration, showed that no houses would be

affected in the event of dam failure. This is a conservative

assumption, as the highway embankment would hold back much of

Sthe flow.

The house to the left of the dam shown in the overview

rphoto is owned by the New Haven Water Company.Based on the height and storage capacity, this dam is

classified as "Small" in size. The flood routing shows the dam

to be of "Low Potential Hazard".

12

91 .- 2-

• 4 ( "" "; , ; : ''. , .g ::,:5:",' ,.'-, .- :""-". ? " "",f''

MI.

_, I.P

~~1u

-

I'k. OVERVIEW PHOTO

U.S.ARMY ENGINEER DIV NEW ENGLAND WEPAWAUG RESERVOIR DAMCOINS OF ,,INEER8 NATIONAL PROGRAM OF WEPAWAUG RIVER

• INSPECTION OF ORANGE, CONNECTICUTROALD HAESTAD INC. NTCoualTIu i

NNF . I -ST 0 8

WATEf~uql, CONNECTICUT 27 NOV '79L-3-

%

FIGURE.I

A.

-s 30-I, 'po ../ a..

41C. I lei

.- Pin

1014 0!- .go

w 0CGO" Course

Rae L

Y--"-- /~

LL

SCALE . 1" 0

Cem

-C. 4~ se** . .* * * ** ."4,g

~1

*0

'-V4.' r~

I

APPENDIX A

ENGINEERING DATA

4

'I..

* V V V

V V . ~ . . - . V

A . .. P A.. ..~ ..* A

NEW HA VEN WA TL CO.WEPAWAUG D/V~eJIOA'- WEPAWAVG R/VER AND~ RACIt 8200K

EL-EVANTOV3 OF WEIRS A ND FORMUtL AS FOR 0/SCHARGES

Connecticut Route 34 Bridge

WEAWA UG WEIR - EVA T/O// LOOK/MG DOW//STREAM

PFWA4MA5 Me WC/34WM* WEIR.

for/eads p to2SYZ.TY, Q*3.33JC-aH)HI L-8 //head'n weir.in fed

$ wml AA ao67Z(.17. xJI(,-1-), 45 ol bal heaodlm feel .

Q,2.L, 4H8 ac t ,'obk #g -Aeod e concrele (- N, ZW)

roa hed #, int ;aht ki6 j:i 34 JO 60 54 JO 1601*Lunlh ALw infe /411 i5.8 /5-7 156 /5-4 /53 I// 1 M?8 1 4. 4

Ilalwf 4oi//woy of Wkpwwf Dam ona weir,Q~~e9)rOH a~ aed,*

IN 1TERDETARTMEN-r MESS.' GE SAVE TME: II/ai'iJZ e Vjti(M lf A'( a l(ah

,TO-201 12-61) Use carbon if ou really nerd a top,) I IPrtvrotln, ig ore lairni bnci.

TO AGENCate & Related Resources DAT. 20, 1971'.- Fileue.2,1]

OM AGENC TELEPHWilliam H. O'Brien, III ater & Related Resources TELEPHONE

Civil EngineerSUBJECT Wepawaug Reservoir Dam, Orange

On December 16, 1971 the undersigned inspected the subject dam which is on

Sthe Wepawaug River imediately north of Route 34 just east of Route 15.

This is an earth dam about 200 feet in length with a concrete ogee spillwayabout 80 to 100 feet in length with a gatehouse and outlet pipe 24 inches in diameter

S- at the east end of the spillway. The dam is about 100 feet north of Route 34 andthe normal pond surface is about 4 or 5 feet below the Route 34 pavement. There isa quite adequate culvert beneath Route 34. This dam would undoubtedly cause somedamage in the event of failure and is therefore under the jurisdiction of the depart-ment. The spillway and the embankments appear to be in an excellent state of main-tenance. No leaks were observed and there appeared to be no cause for concern atthis time. The top of the embankment is approximately 2 to 2J feet above the normal

pond level. This dam is owned by the New Haven Water Company.

-.=.I Civil Engineer

WHOslig

4..

" '.'SAVE TIME: II ceuvmn~eul, baud miii repl7 Se 5Uender em Iii a,.e shemi

NEW HAVEN WATER COMPANY

STATISTICS ON DAMS*

NAME Wepawaug

SUPPLY SYSTEM Maltby

LOCATION Orange

DATES: ORIGINAL CONSTRUCTION

ADDITIONS1, ALTERATIONS

MEAN HIGH WATERELEVATION LENGTH

CREST** 183.0 374 Ft.

TOP OF CORE WALL 180.5

SPILLWAY 180.0 90 Ft.

B. 0. AXIS 167.75 23t Ft.

BED OF RIVER 167

DEEPEST FOUNDATION 164

FREEBOARD: CREST TO SPILLWAY 3.0 Ft.

CREST TO TOP OF CORE WALL 2.5 Ft.

HEIGHT: CREST TO BED OF BROOK 16 Ft.

CREST TO DEEPEST FOUNDATION 19 Ft.

TYPE Earth Embankment, Concrete Corewall

TOP WIDTH--MAX. BOTTOM WIDTH (Ft.) 15 -- 70

UPSTREAM SLOPE H/V 2/1DOWNSTREAM SLOPE H/V 2/1

TRIBUTARY WATERSHED (Square Miles) 7.8

RESERVOIR AREA (Acres) 10.9

RESERVOIR TOTAL STORAGE (MG)

RESERVOIR USABLE STORAGE (MG) 15

*See individual sheets for more details4 **Crest Length includes spillway Date 8/12/74

ParP-g

SN HAVEN WATER COMPANY

NAME OF DAM Wepawaug

TYPE Earth embankment with concrete corewall and stone rip-rappaving on upstream slope to a point 2.5 feet higher thanthe spillway elevation. Concrete Ogee type spillway withconcrete gatehouse on east end of spillway.

LOCATION In the town of Orange on the Wepawaug River approximately100 feet upstream from, and north of, Derby Avenue,State Highway No. 34.

SUPPLY SYSTEM Maltby

DATE OF CONSTRUCTION

ORIGINAL 1910-1911

OTHER -

ENGINEER CONTRACTOR

1910-11 Albert B. Hill The Stobaug Contracting CompanyNew York City

Elevation Length (Ft.) Miscellaneous

CREST 183 MHW 374 Includes spillway

-SPILLWAY 180 MHW .90 Concrete, Ogee section

AXIS OF B. 0. 167.75MHW *23 30" cast iron

BED OF RIVER 167 MHW -

[ DEEPEST FOUNDATION 164 MHW Rock

~I. DATE August 1974

I

~Pa[&'. 2

NEW HAVEN WATER COMPANY

Name of Dam Wepawaug

HEIGHT FROM BED OF BROOK 16 Feet

HEIGHT FROM DEEPEST FOUNDATION 19 Feet

TOP WIDTH 15 Feet

MAXIMUM WIDTH AT BOTTOM 70 Feet

\. UPSTREAM SLOPE Embankment-2 Hor on I Ver Corewall H on 12V

- DOWNSTREAM SLOPE U -2 Hor on 1 Ver H on 12V

FREE BOARD - SPILLWAY TO CREST 3 Feet

- SPILLWAY TO TOP OF COREWALL 2.5 Feet

, MISCELLANEOUS DATA Corewall 2 feet thick on top. Corewall and

I spillway down to ledge rock.

WATERSHED TRIBUTARY TO:

UPSTREAM DAMS

THIS DAM 7.8 Sq. Mi.

TOTAL WATERSHED TRIBUTARY TO THIS DAM 7.8 Sq. Mi.

RESERVOIR AREA AT FLOW LINE 10.9 Acres

RESERVOIR CAPACITY AT FLOW LINE

RESERVOIR USABLE CAPACITY (To Lowest Outlet) 15 Mil. Gal.

UPSTREAM DAMS

DOWNSTREAM DAMS Lake Wepawaug (an excavated large pond in aresidential development approximately 10,000 feetdownstream from the Wepawaug Dam & Reservoir);Clarktown Pond Dam; Camp Clark Pond; Town's damL and pond formerly the Fowler Mill dam and pond --

near business center and south of Town Hall.I.-~ .... . - ********** .. -....-...-. ~ -

A

'U

-U.5

-I

'U

4 APPENDIX B

PHOTOGRAPHS

*5.-.

IA

%a4*---- -*. -

-,- -C

-4%

PHOT NO. I

[SPILLWAY SETO0 N GATEHOUSE

t PHOTO NO.2

i RIGHT EMBANKMENT AND TRAINING WALLROUTE 34 DOWNSTREAM OF DAM

N..

L U.ARMY ErNGINIEER DIV NEW ENGLAND WEPAWAUG RESERVOIR DAM

cows or ENNER NATIONAL PROGRAM OF WEPAWAUG RI VERWALTHAM, MAIAC"USETTS INSPECA'ON OF ORANGE, CONNECT ICUTROALD HAESTAD, INC. N TCT N86

COHSULTING1 ENGINIER8 O -E .D MWATERSUITL CONNECTSUT 27 NOV '79

'C, ,,;t .".: ... .,..., .,' .,, ' .; .: , '.' . . . . . ; : ; . ; ; ;..

a-'-• . .. .0

PHOTO NO. 3

," EFFLORESCENCE AND CRACKING

OF GUNITE SURFACE AT OUTLET PIPES

PHT NO. 4A

\-

: PHOTO NO. '4 ,:* '

k OUTLET AT LEFT END OF SPILLWAY

EROSION HAS TAKEN PLACE

BELOW GUNITE

" - WEPAWAUG RESERVOIR DAM

USARMY ENGINEER DIV NEW ENGLAND

or FNGINERS NATIONAL PROGRAM OF WEPAWAUG RIVERWALTHAM, MASSACUSI INSPECTION OF ORANGE, CONNECT I CUT

ROALD HAESTAD INC. NONFED. DAMSCT 00086CONSULTING INSINNEO-E 27 NOV ' 79

WATERiBURY, CONNECTICUT

, ..

I ,, , .. ., t~

PHOTO NO..5

ROUTE 34 BRIDGEDOWNSTREAM OF DAM

, . -... " '.- .... -I,

- -l- PHOTO NO. 6

* j DAM AS SEEN FROM ROUTE 34

U.SARMY ENGINEER DIV NEW ENGLAND WEPAWAUG RESERVOIR DAMorTHM ENGNESACUE NATIONAL PWROIAM OF WEPAWAUG RIVERWALTHAM, _ __NU __ _. .

. INSPECTION OF ORANGE, CONNECTICUT"OALD iAEST sDON-FED. DAMS CT 00086

WATERWR Y, CONNECTICUT I27 NOV 979

4:

-I, ,,,~p v'.~ **'~... ~../*%-* -,l

L

! --

L

U.S.ARM ENINE DI ESNLN EAW EEVI A

,[

'a

i% t DISCHARGING THROUGH RIGHT SPILLWAY WALL

CONS or ENGINEERS NATIONAL PROGRAM OF WEPAWAUG RI VERWATHMMABAHUET9INSPECTION OF ORANGE, CONNECTICUT

CO0ULTIN *- DAMTERSWATRIERiuRY, CONNECTICUT 27 NOV '79

*oSo ~,m~ AINLPRGA FWqAAGR E

V '~~.~/t 4'T%%' ' i* *MAIA HU TT INSPECTION OF ORNE CONNE' T CUT

IV

L .

-i

-- ' APPENDIX C

HYDRAULIC/HYDROLOGIC COMPUTATIONS

L

L

IL*. .A

... DATE ............. .- ROALD HAESTAD, INC. SHEET N..... OFCONSULTING ENGINERS

CKD BY W,,.- DATE . . . 37 Brookside Road- Waterbury, Conn. 06708 JOB NO .... .....................

SUBJECT ...... ,..........................................................

t ~~ 0/vl R 7W,46 G-/~ _-C"

j 5P/Lw.-y CRESF TO TUP oc PA Z5. C.

! ,2 PIa-Wy cAPAC/r =' C2-M/ .

S- R E ,A mv ci> T o SP, LLw\41- CPS /

/-Y'RALI-IC Hr/l1-/'r 0/- - , =" A;"

WA ,9 % ~ '7 n rna

Rr,'VO IC'.4) \ A r A 'r/ ,4,1 $PIi.,L' 5qy = S

S7OIrA4r£ CAPAITy AT SPit.-W y = 6'/4- X7.

"T6ORACE CAPAC7>,, Ar 70POF ->,am //7 Pc-ry.

4

%

I' 1

BY...........DATE ....... ROALD HAESTAD, INC. SHEET NO...! .OF

CONSULTING ENGINE[RSCKD BY ;.k... DATE .. A/WZ. 2. 37 Brookide Road- Waterbury, Conn. 06708 JOB NO .... .... ...........

SUBJECT . .- . .PJ-.AA .. C4'", .. .

-I I*' ' - I _ _i I ' I . .. .

_ I

[I .. I ________i l

___ -' - -&--I 7 -+- I'I -

i I I I I• , , _ ___ ___ ___ __"_I+7-

-i f,***.* I - -~

4 . ,__________ , i ; .,

r l i : '-

gH__-.

" r ,r .' gg¢.. ,; ,. ; ____ ,. *1 . .. €.€ . . ... ,_:. . ,. € ., g #g. ;. ., , ',

B9 Y DATE-.. /-7.. ROALD HAESTAD, INC. SHEET NO..... OF

CONSULTING ENGINEERS.. / 7. .. 37 Brookside Road- Waterbury, Conn. 06708 JOB NO ......... ."..............

S U B JE C T .PR E A - C A P ......... ............. ...................................................................... ..... ...............................

/ -.

4 1 -..--

0 sCm

%L cc- 11- .l ... . . . .l ,*- I, t v

,-1 .t 0 - 0

~~0 0

0 t

?I %Isw-o

L--S

By..r ... DATE.. I ROALD HAESTAD, INC. SHEET NO..... Ci F ...........

A CONSULTING ENGINEERS

CKD BY WWd. DATE . /.... 17 Brookside Road - Waterbury, Conn 06708 JOB N.. ...............

SUBJECT . ' v ~ .'x .... . . - F 2 7'' AA5, r. : s u J E ..T...... .... ...L. .'... ... . .. . ..-.. .F.. ... ....... . : .<... ............... ....................................

€ ~ ~ ~ - A''r/d if C,:,-,. 17y . 7 ' 0 fr; /'7 ,. ,

S-..

"-.."/€ / "- I 4/ Cr- / , -- 4/ .O / .7!)' R Zr.- ; ,.'7 -"" "

= '27 W,,~

r~ c /?yIa 4 c. 7 ~ s ~, -. "- ci

r: r.

VA.V

-.'

-7 5

SZic 7/'V Z. # 8.s' 64 A= 60 1.'L R~EACH LEV'6TN 70

V 3 z 00 700)/,,33S,4 30 cF1

Q0.1TWA& -t94977 e 7) 370e C'S

HSIr7,S' A 3 74/41 ~

V37 II- 77

S•VAV - z- zS A,-fi

L3 418 -- -- )77-.; SI117

A A )

DATE.... . ROALD HAESTAD, INC. SHEET NO O.... 0F ...........

W D .CONSULTING ENGINELRSCKD BY W,.S€9. DATE .3.~, 7 . ]7 Brookgide Road -Waterbury, Conn 06708 JOB ND .. .

""- SUBJECT.%,Vv f/",'<" :p t'., -F rhv,:) :;~J-/I..° °° .S U B J E C T..' ..... oo °° o o . . . . o° o °o o oo , o . ...... ....... o... ............ ..... ...... .. o. .. .. ... ...

c~9 ~.=3777- css,

V 900 &0 1+.3E.Eo'so 5 e A,--,

q /,. ,/ T 17- " - C - S

", - 77Z. I-- c ss

(i=288 C s

• ",'%- # =A' 7 ' A -= 7 , .-

VA VSA -H

. V= 7oX zooo/,/., = f6 ,r-f,'.

-- ~~zr? s-J?,~h lZOv(/ 3 c.q s

Vv =

7117 )

1463 S. P14-WAqY c.APAe-/7)- /777 CSJ

I

B Y. A ..... DATE/.E . ... ROALD HAESTAD, INC. SHEET NO .... ... OFCONSULTING ENGINEERS

CKD BY W. .DATE o/.I./.l .. 37 Brookside Road- Waterbury, Conn. 06708 JOB NO .... ............

SUBJECT..W AW r ...... f1/-COD 1ROUT/*6~SUBJ EC T... j...'..P.A.M/A.. ...... . .. :..../' . ..9 .. .............................................................................

..

"~~~~~ Oc L-22 .......(SECE FI60RE 4)

v.:* L

3_ ___e A R S v

5 70 170 2,qZ11 c'ci 7.7 /4i/0 /zo 63s, .?5 cZ I /-. /o//1 17! /1 " 7,.I 1.ct z/ z ,

~k

/0

AII

L -

l i :7 .... - 5I.:- ..

BY . .... D A TE.]~: ROALD HAESTAD, INC. SHEET NO .... 7...OCONSULTING ENGINEERS

C KD B y W I*ED AT E .. 'A<i2 37 Brookside Road - Waterburv, Conn. 06708 JOB NO ...

SUBJECT*yE'Wqr .. Fd-oolb Rou 7.,,v&

/0,

Sc. .2

/1.0 /6/05 18 00 /, p3

'blScHARG;F CAPPACIIY- /PCdo CS5

"Co

A RV

H ~ DAT........... ROALD HAESTAD, INC. SHEET ND...6 DF*jCONSULTING ENGINEERS

CKD BY WM'. DATE dji.jf1~ 37 Brookside Road - Waterbury. Conn. 06708 JO O' '9-C

JO t... ... ........................

.5,0 Cc. -1

b_ A R __v

8 I~~-10 q.o9 c.oJ ''

700 Y86 C/~ .9 7 C), c Z- ~ --? / I- 16 657O 7.;. 6141S 7-~ 9

40-

BY.......... T...- ROALD HAESTAD, INC. SHEET NO.... .... OF

CONSULTING ENGINEERSCKD BY .. DATE .. /f./..?... 37 Brookside Road - Waterbury, Conn. 06708 JOB NO ....................

SUBJECT ........................ .. . . ..- L '..z-: ."-,,

.[-" , ~A -re ICTAK24.' '/ /-A- L=

_-_"___ -cocz _.

,W P A F v

700 Z6 7. 36 . ,._ , I ./0 96e-0 730 6175" 8,Y6 0.62 . 4z .G8

83 0/41'z /?,AD 0'.002 8. /00

I0

)ISCHAR60 CAiPRqr/7 -/C'00C4S

/0

_~~~~ .... ..... ./ 003t. Fy. ¥S

kL E

L

a.. - ---- - -.1 -W

1.1

tii

~WEPAWAUG

? "RESERVOIlR DAM

SECTION L INS

"-' (TYPICAL)

L7

DAM FAILURE

lz FLOOD LIMITS T

.aI d(.

DAM FAILURE FLOOD LIMITS-:5 *WEPAWAUG RESERVOIR DAM

L ORANGE, CONNECTICUT

SSCALE 0 ,0

1 ROALD.HAESTAD, INC. ANSONIA OUADRANGLE 972

3 1

........

. "'

"% /

/ -4 °- -

II ill' ..,.:,

Fg~

"S./.

;. -%..

kS

• , • . . . . , . . . • . . , , .o e w .. . . % ' % P' t "

. .' ' • - . .. . . , % . - o " ,, - , . . - *' ° • -. % " .% .% - , . ,,- , - ' .4 - • ,"

,. , J, % o . . . * . • * ', % . " . . ," . .a, . -, , , - , . . . , ,

'4.0 i,..s....._....:.... ......... ...-, .:.-., ,.,. - " . .

A w

~~toy

i47

*,do .-.. 0I

.1~ : k~4i .. K ~7/ . -4 *

Jpjo

- - - . - . . . -

V ~ ~ ~:p. Ii

jpt I ' 4 - ~-

I e' itC .3. ' '1

't'. 7. t I '2 -:

99.. *,. I. 14

2 'h *. ' ~ C

.1' V ' ~. L .,,~,4 ~j

TA "'~ 9~V's ' 1- t S* F JAIA:40t§I ! K L

$,~4frAth '*'r' -- wt ~* I.

~ Q%;~4~ 4 ... >* A.'* * -* *"..~ t. ."

-'"'4' ~2.

it

~ q- . 5.

rw1w~z~ (4~ 4' 414*F.-~ p-ti ~ IC

*."4..' '1~

A 4 i

-' a~'. s'I '1 4'

A-:-1'

4.'; ...

- 44 -*~* ' .*'1 P"'---- '-A- ~

1 'N-c- ; r-N.''1 1 4 . ., 'A21

-A.~4 '.A-! A

1'

rs4r~t 1~ , . *-.'. ''' -

-)44

7.tMvvt --2

-- .3. **

~-v ZJr .1 /it'

9. 4..

FR

@1 "" 2 t4r * I.; . .~.:::t;r: -rr~"~ij~.rT44

IA,.-

~ -b %vv..:..