Narrows Project FEIS

xi

Legend 0Municipalities

I Lakes and Reservoirs

~Proposed Reservoir I Lands to Receive Project Water

Ocounty Boundaries

] Township and Range

¢East Bench Diilersion Dam

-Narrows Tunnel Rehabilitation

r-Proposed Pipeline

Unimproved Roads

-State Route

-U.S. Highway

N

t 0 1 2 3 • 5 e ---s;iill Mies

Narrows Project Location Map

Project Area and Facilities

Sanpete Water Conservancy District

Narrows Project FEIS

Topography Map

xii

"' ""

-----------------------------------------~~---------------------------------Woodward-Clyde Consultants

1-­w w ..... z 0 l­et > w .J w

8700

865 0

8600

8550

--

ROCK ZONE -....

TRANSITION ZONE

--r- -_,/.

STRIP EXISTING ---­GROUND SURFACE ( 1 FT. ESTIMATED)

30' - -

ZONE 1 TRANSITION FILTER---

- - -- -- ---- -1-- - .-- .__. -- - -'//,,

1'1~"- ,, 1; "'f1, I ''-':Y'/ 1,'

RANDOM ZONE

5 · ......-- BLANKET DRAIN --r--,---

8 7 00

86 5 0

8600

,... w w ..... z 0

~ > w .J w

_J REMOVE SOIL TO BEDROCK

' ~STRIP EXIS:---

GROUND SURFACE ( 1 FT. ESTIMATED)

40'

GROUT CURTAIN 45 '

SECTION A-A'

0 25 50

SCALE IN FEET

I

~

@ 0 50 100

SCALE IN FEET

PLAN VIEW

100

200

NOTES:

1. THIS FIGURE SHOWS GEOMETRY AND DIMENSIONS USED FOR COST ESTIMATES. AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES.

2. BASE MAP FROM TOPO BY OLYMPUS AERIAL SURVEYS, INC. DATED OCT. 12, 1979.

DRAFT FOR COMMENTS & DISCUSSION ONLY

NOT FOR DISTRIBUTION

8550

Joo No 2259 6G

Preporen by · S.J .E. EARTH EMBANKMENT CONCEPT

PLAN AND CROSS.SECTION 'A Dote i 1( 13 / 9 0

----~ · ~::::....:::::::::::_~::::....,~==-~:__~:::__t.._:_:_~~__:~--~~~----....;._--------------..._--------......... ---- Figure D-1

100' 80' 1!11 40' 20' 0 100'

Outlet Works Intake Structure \

Tra~~~~ . . .

8" Outlet

42" Diameter Outlet

Gate Chamber

SECTION A-A SECTION THROUGH OUTLET WORKS

sa ¥Y "Jl1 20' 10' o

Dam Crest Drop inlet r

-------'~-Elev. 8700

84" Diameter Spillway Conduit

~". ..-/~'\.. D ..-/~'\.. SECTION B-B

THROUGH DROP INLET SPILLWAY ---50'40' :IO' 20' 10" 0 :ZS" 5tl

Seepage Cutoff Collars at 20' O.C.

Figure 0-2

~PdtEl~M~NARY NOT FOR CONSTRUCTION

Elev. 8592'

NARROWS DAM llECClfH<ISSANCE LEVS.

NARROWS SITE . EMBAHKMENT ALTERNATIVE Ol/T\.ET WORKS ANO SPI WAY

PREPARED FOR SANPETE WATER CONSERV Al+CY DISTRICT

DRAWING NO 90.200-007 DECEMBER 111, 1990

DESIGNED BY . R NOBLE DRAWN BY · P WRIGHT

6710

8700

8690

8680

667 0

6660

6650

6640

: '

\

{ \ 1 J

I :t·

,{

\, \ ,1 \ '\ '\ i ~ \ i \

*. ~ \ \ \ l ~,.

J \ i \ 1 \ 1 . 1 ~ ~ / l l

/ l I PROPOSED ACCESS -ROAD t' i j \ ·.· t . ! \

I~ 48" l.D. CORRUGATED liDPE J .- REINFORCED CONCRETE l

,I (EX'.:nNG) J // GATE CONTROL {UILOING 1

_}_ -f' -

,,___0-----0----0-~~ >-----0--0---0.-\---<>/~J 0---. \ l

\ { \ \.

)\ i \ \ }

( \

REINFORCED CONCRETE /

, 1 i

/ ·

I ~--- -=l~~

GATE CONTROL BUILDING-~

I m r I & 8

/. I I

I l

t ~ \ \ ., \ I ' f

\ .- ENGINEERED FILL

\ ,./

~ ~ --------I y - AREA OF PROPOSED v REHASILITATIQN' .

I

I 48" l.D. CORRUGATED HOPE"" - STILLING BASIN AND (EXISTING) ft. ~~ / ; 48" X 48" HEAVY DUTY SLi.JfCE GATE

~

I

STA. 26+10 STA .. 26+4.Q

DESIGNED

DRAFTED CHECKEO

,,

'

RMN ree

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···· · · ... ' .. )

\ -~~ I

' '"":....'».. . ~ ,! A ..... _ , . -'-- ~ I _/ -----r---

STA. 28+70 STA. 29+00 STA. 29+30 STA. 29+60

NO.

-

I STA. 29+90

NTS

\ \ '~ '~

I •.

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.~ ' If ;.1 ~"'~·~~ \ ~

~ \A \ I · ~ 6' 1.D. CONCRETE~LINED' TUNNEL

(EXISTING)

7 ""'""' '"""""

?R\N\ ~~G~t.SS I l'W-~

' 11 ucti<'' 0~, c,of\Slf \ r"G• used o ~ Luce, r~ ,0 tie j>,)len• EP~\<'ee

1•0\i..~"· 1111"-"' 0>"5'1

~ REFURBISHED CONCRETE GUARD GATE WING WALL 'N~ML\

.,.- 6' l .D. CONCRETE-LINED TUNNEL

~ \\ _,/ (EXISTING) .,,

~ \ ,

I

-8710

- 8700

8690

8680

8670

8660

I 8650

I STA. 3 1+40 8640 STA. 30+20 STA. 30+50 STA. 30+80 STA. 31+10

~PETE WATER CONSERVANCY DISTRICT NARROWS PROJECT

NARROWS TUNNEL INLET REHABILITATION CONCEPTUAL. DESIGN PL.AN AND PROAL£

D-4 } e- fi 'CJ> • "" t t ...- e -PR_OJ_E-CT-EN-Gl-NEE-R - DATE ~TE Jl E V I S I 0 ,. -S ~~~~~~~~~~~~~~~~~~~~~~~~~~~-~~~~~~~~~~~-~~~~~~~~~~~~~~-~~~~~----~~~~~~~-~~~~---~~~-~---~~~~~~~~~~~~--

D-7

E N G I N E E R S

63 50 6350

630 0 6300

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I \

0 \ I I 625 6250

' I \ \

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0 -- I '" ..... , __ .. ,, / 6 - /'

\ / \ r, I \/ '"\/

620 200

615 0 6 150

6100 6 100

STA. o+oo STA. 40+ 00 STA. 80+00 STA. 120+00

~ CHECKED

1

SANPETE WATER CONSERVANCY DISlRICT ~ .. ~~~~~~~L..~P~RO~J~E~CT!...!;.E~NG~IN~E=E~R~~D~A~TE;__~~~~~~~NDO-l..__,M,TEC::r::::::::::::::::::::::::::;,::;::;:"":c:;;:!Cc::::::::::::::::::::::::::±:;;;:J,;;;::l_~~N~TS:_~~~~~~~~~NAR~:ROWS~~p:R:OJ~E:CT~~~~~~~~~~~~~-E:AST~~B~E~N~C~H~&~OA~K~C~R:E:El<~P~l~P:EU~N:ES~~~~~~~~s!HE~rrl§d RE VISIONS BY J.PVD. 321.1 D.100

SCALE DESIGNED RMN 3

DRAFTED TBB 2

D-8

E N G I N E E R S

6450 ...... I

a_ a_

6400

tJ w I

6350 IC/l

w w (/) __ , ,,

' ' \ 6300

' \ g \

'. + ' 0 ' 0 \

' '<I- \

' ~ ' I ' ' -'-.,,,-' \ (/) \ 'V .. , ...

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6250

6200

6150

6100 l..L u ~ ::::?

STA. 400+00 STA. 440+00 STA. 480+00 STA. 520+00

IUIRSER DESIGNED .atJ..m DRAFTED

RMN J

lBB 2

- r" ' / \,,,, ..... , ~,, ..... ..,,,--,~ I ,J' ..... r,, / ' .... .., ... _, ,,_

/

' / ' / ...... I

' ''·" I

STA. 560+00 STA. 600+00 STA. 640+00 STA. 680+00

,,, ....... / \ ..........

~·

( ' ~ 'I ' ' '

STA. 720+00

SCALE

NTS

6450

6400

6350

6300

6250

6200

' ' , ... , 6150

6100

STA. 760+00

SANPETE WATER CONSERVANCY DISTRICT NARROWS PROJECT

0 2000 4000

SCALE IN FEET

EAST BENCH &: OAK CREEK PIPELINES SHEET

&. WCE..: CHECKED

~ .... ~~~~~~ ...... --P-RO_J_E_cr ...... E-NG-1-NE_E_R~~D-A-TE--~~~~~~ ...... NO_ . .._ __ ~-~ .......... ~~~~~~~~~~~~--R-E_V_l_S_l_O_N_S __ ~~~~~~~~~~~~ ...... -~ ..... -APYD-.-·..._~~~~ ...... ~~~~~~~~~~~~~~~~~~~~ ..... ~~~~~~~~~~~~~~~~~~~~~~~~...i..-J-2_1._10_._10_0_.

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MOUNTAIN _')r/~1111

Wetland Mitigation Location Map

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Map Dllt: 1211612016

Coordl,ato Syatom: NAO 1033 UTM Zono 12N ProJtc:llon Tra.nl\IOfH MercalorOt1ll.1m; NOtt.h Amorlc.t1n t083 O.\pr~ec11\1&83_N1trrowa\W•ltn11d\Nnrr<M1_Wull1ndM1llgnLon_LoctUonMap.m:icd

o,__ _______ s.__ ______ _,10 Miles CV

www.blo-west.com 435.752.4202

Mtp 0111: l l lte/2015

Coordln•t• Sy•l•m: NAO 1983 UTM Zont 12N PtoJtcllon: TrMIYMH ._~oroatOfO•lum: Norlh Amorfetn 1983

CJ Project Boundary

CJ Existing Ponds

.. New Ponds

.. High Level Wetland Enhancement

r I Mid Level Wetland Enhancement

O ';Jrojoctl\ IG8:J_t4arrOW1,Wot11nd\Manli Mtadowt\ManU_~Hdow•.mxd

Project Area Summary

Existing Ponds = 11. 7 acres New Ponds = 11 .4 acres

High Level Welland Enhancement = 114.6 acres Mid Level Wetland Enhancement= 90.3 acres

Manti Meadows Wetland Mitigation Map

o.__ __ 40._o __ _,eoo Feet Ci)

Map Date: 1115/2014

Coordinate System: NAO 1983 UTM Zone 12N Projection: Transverse Merca torDatum: North American 1983

G:\Narrows\Wetland_Assessment\De1ineation\Narrows GPS 05_29_ 2014\Narrows_MudCreek_Sfte01.mxd

c::J Project Boundary

D Mud Creek

- Perennial Channel

D Emergent Wetland I Scrub I Shrub Wetland I Scofield Reservoir Ordinary High Water Mark 7618'

-(from USGS Topographical Map) ;

Mud Creek= 5.8 acres, 7,200 If Perennial Channel = 1.5 acre, 3,220 If Emergent Wetland = 112 .1 acres Scrub I Shrub Wetland = 51.1 acre

Upland= 74.5 acres

Narrows, Mud Creek Site 1 Wetland Delineation

Overview Map

www.blo-west.com 435.752.4202

Map Dale: 4/1512015

Coordinate System: NAD 1983 UTM Zone 12N ProjecUon: Transverse MercatorDalum: North American 1983

Q:\projects\ 1583_Narrows\Wetland\Narrows_Mit!gaUon_SJteO 1.mxd

Mud Creek Enhanced

Perennial Channel Restored

Existing Wetlands Not Affected

~ Wetland Creation

EZLJ Wetland Enhancement

- - - - Scofield Reservoir Ordinary High Water Mark 7618' (from USGS Topographical Map)

Stream Corridor I Riparian

Mitigation Area Summary

Existing Wetlands Not Affected = 46.6 acres

WITHIN STREAM CORRIDOR I RIPARIAN Wetland Creation = 11 .5 acres Wetland Enhancement = 51.6 acres Total = 63.1 acres

AWAY FROM STREAM CORRIDOR Wetland Creation = 15.5 acres Wetland Enhancement = 66.5 acres Total = 82.0 acres

Narrows, Mud Creek Site 1 Wetland Mitigation Map

0~---25~0---~500 Feet @