J a n u a r y 2 0 , 2 0 1 6S O U T H P L A T T E R I V E R - U R B A N W A T E R W A Y S R E S T O R A T I O N S T U D Y

0 ’0 ’ 3 0 0 ’ 6 0 0 ’M a x i m u m A l t e r n a t i v e - Yo r k S t r e e t t o 6 t h A v e n u e

HERBACEOUS WETLAND

RANDOM BOULDERS FOR FISH

FISH PASSAGE CHANNEL

TOP OF BANK

REGRADE POINT FOR FLOOD CONVEYANCE

RELOCATE SS INTERCEPTOR

NEW TOP OF BANKHERBACEOUS WETLANDS

RELOCATE SS INTERCEPTOR

PROPOSED BRIDGES

PROPOSED GLOBEVILLE LANDING PARK OUTFALL CHANNEL

LOWER HERBACEOUS WETLAND

OPEN CHANNEL WETLANDS

WETLANDS AT OUTFALL PIPE

NEW TOP OF BANK

HERBACEOUS WETLAND

HERBACEOUS WETLAND33RD OUTFALL

IMPROVED ACCESS POINTS

NEW TOP OF BANK

WETLAND/RIPARIAN

NEW LOW-FLOW CHANNEL (EXCAVATED) 40-45’ BOTTOM WIDTH, CHANNEL TOP WIDTH ≤75’

NEW TOP OF BANK

RELOCATE TROLLEY TRACKS

WETLAND/RIPARIAN

3’ DROP FOR POOL, RIFFLES TO TIE TO EXISTING RIVERBED

TIE TO EXISTING RIVERBED

WETLANDS

RELOCATED EXISTING 48” SS

EXISTING DAM REPLACED WITH FLASHBOARDS

EXTEND WHITEWATER

NEW TOP OF BANK, RELOCATE 48” SS AND 72” SS

NEW TOP OF BANK

HERBACEOUS WETLAND

WETLANDS/RIPARIAN

NEW LEVEE

WATER QUALITY POND AND WETLANDS AT (3) OUTFALLS

VMEANDER POOL, RIFFLE, DRO

PS (EXTEND EXISTING DROP)

RELOCATE 78” SS

WETLANDS

RELOCATE CANAL

RINGSBY COURT RE-ALIGN

PROPOSED CSU WATER RESOURCE

CENTER

LEGEND R iver

Up land R ipar ian

Wet land

Area Of R iver Widen ing

Low-Flow Channel

Wall

New Top of Bank

J a n u a r y 2 0 , 2 0 1 6S O U T H P L A T T E R I V E R - U R B A N W A T E R W A Y S R E S T O R A T I O N S T U D Y

0 ’0 ’ 3 0 0 ’ 6 0 0 ’M i n i m u m A l t e r n a t i v e - Yo r k S t r e e t t o 6 t h A v e n u e

WETLANDS/RIPARIAN

PROPOSED BRIDGES

PROPOSED GLOBEVILLE LANDING PARK OUTFALL CHANNEL

LOWER HERBACEOUS WETLAND

OPEN CHANNEL WETLANDS

LOWER EXISTING BENCHES TO CREATE HERBACEOUS WETLANDS

WALL

WALL TO OFFSET TOE STABILIZATION LEAVE EXISTING BENCH

WALL

HERBACEOUS WETLANDS LOWER BENCH

3:1 TOE3:1 TOE

3:1 TOE

WALL

3:1 TOE

LOWER TO WETLAND ELEVATION

LOWER TO WETLAND ELEVATION

WATER QUALITY PONDS AND WETLANDS AT OUTFALL

FISH PASSAGE CHANNELMEANDER POOL, RIFFLE, DROPS (EXTEND EXISTING DROP)

REGRADE POINT FOR FLOOD CONVEYANCE

OUTFALL WETLAND AREA

ADD WETLAND VEGETATION

RESTORED WETLAND

WHITE WATER

LOWER CHANNEL 40-50’ BW

ADD HERBACEOUS BENCH

NEW LOW-FLOW CHANNEL (EXCAVATED) 40-45’ BW

END CHANNEL LOWERING

3’ DROP FOR RIFFLES, POOLS TO TIE TO EXISTING RIVER BED

ADD VEGETATION, LOWER TO WETLAND ELEVATION

REPLACE FIXED DAM WITH FLASHBOARD

LEGEND R iver

Up land R ipar ian

Wet land

Area Of R iver Widen ing

Low-Flow Channel

Wall

New Top of Bank

J a n u a r y 2 0 , 2 0 1 6S O U T H P L A T T E R I V E R - U R B A N W A T E R W A Y S R E S T O R A T I O N S T U D Y

0 ’0 ’ 3 0 0 ’ 6 0 0 ’O p p o r t u n i t i e s a n d C o n s t r a i n t s - Yo r k S t r e e t t o 6 t h A v e n u e

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7

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2

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F

D

14

10

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7

15

9

11

4

8

P

P

2-Way Street, Parallel Parking One SidePossible Removal

of Arkins Ct

Proposed Promenade

Possible Ringsby Ct Realignment

Taxi Community Garden

(public)

38th

Str

eet S

yste

m 5

4

Fox

St O

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l l 96

J

FG

16

18

9

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17

P

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PNor thwest Subarea In te rcep to r 100-y r Opt ion 144/72

34th Ave and L ipan St 114

K

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23

24

20

21

25

19

22

P

7th

S t O

utfa

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20th Ave Out fa l l 96

19th Ave Out fa l l 48

W Col fax Ave Improvements 84 o r 132 /84 100-y r A l t .

W C

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emen

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W Col fax Ave Improvements 18

W 18th Ave Out fa l l 66

P

O

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2728

10

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Fairview School Community

Garden (public)

Family Crisis Center

Community Garden

(private)

W 8

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W M

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*No

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A

Burlington Canal Diversion

2

1Rivers ide 108/72

Northside Park & Heron Pond•Existing park adjacent to the South Platte River•Potential to regrade the river bank.

2

National Western Complex•Proposed development to the National Western Complex

presents many opportunities along the South Platte River, including 10 acres of new open space along the river’s edge.

•Potential for district or regional scale water quality treatment facility along the river’s edge, Net Zero goals for water at full build out will lead to district or regional scale water quality solutions.

•Consolidation of rail lines to location shown on drawing. •Water quality requirements are met if the planned berm gets

constructed to cover the existing metro sanitary sewer lines.•Potential to coordinate efforts with design team.

1

Proposed CSU Water Resource Center/ National Western Complex•Potential to coordinate efforts with CSU’s Water

Resource Center and their future planned programs.

5

Globevil le Landing Park•Proposed re-development of the park includes

planned 100-year channel through the park by daylighting an existing stormwater outfall and river restoration, additional trails for access and potential to integrate access and river restoration.

•Potential to coordinate efforts with design team.

8

Washington Street Redevelopment•Globeville Neighborhood Plan identifies the area

between Washington Street and the South Platte River as a redevelopment opportunity.

•Modifications to the existing levee in this area have the potential to reduce flood risk.

•Potential for district or regional scale water quality treatment facility along the river ’s edge

•Potential to relocate sanitary sewer for multiple benefits.

6

4 Emerson Street Parcel•Property acquisit ion, preserve edge to river

and park, and sell remaining parcel for redevelopment.

•Potential to coordinate efforts with design team.

Existing Levee System• Oppor tun i ty to reduce f loodp la in .7

Heller Open Space• Opportun i ty to day l ight ex is t ing 96” s tormsewer

p ipe and connect to the South Plat te River through an open channel .

• Potent ia l for expansion of ex is t ing park areas.

3

Arkins Court• Proposed deve lopment be tween Ark ins

Ct . and Br igh ton Bou levard , p rov ides the po ten t ia l to rea l ign Ark ins Ct .

• Poten t ia l fo r Ark ins Ct . to become nar rower and s l igh t l y sh i f t to the eas t .

14

Arkins Court Promenade • Proposed mod i f i ca t ions to Ark ins Ct .

inc lude re - rou t ing the road and c rea t ing a pedes t r ian on ly p romenade f rom 33rd S t . to 38 th /Wash ing ton S t ree t .

10

33rd Street Outfal l•Potential to incorporate water quality treatment at

the proposed 33rd Street outfal l .•Potential to coordinate efforts with design team.

13

Delgany/Denargo Development•Proposed improvements to the Delgany

Interceptor and potential pocket park/open space to connect to r iver.

•Potential to coordinate efforts with design team.

15

Ready Mixed Batch Plant• Proper ty w i l l be deve loped.• Poten t ia l to coord ina te e f fo r ts w i th des ign

team.

9

River North Park•Proposed River North Park promotes greater

r iver access and bio-diversity.•Potential to coordinate efforts with design team.

12

Future Pedestrian Bridge• Oppor tun i ty to inc rease access to and

across the South P la t te R iver.11

Commons Park•Existing park adjacent to the South Platte River• Poten t ia l to regrade the r i ve r to p rov ide fo r

in - r i ve r rec rea t iona l oppor tun i t ies . • The po ten t ia l fo r s to rmwater t rea tment

ex is ts due to the mu l t ip le la rge ou t fa l l s tha t day l igh t in the park ad jacent to the South P la t te R iver.

18

20th Street Viaduct• Oppor tun i ty fo r new low-grad ien t r i f f l es fo r

aquat ic hab i ta t .17

City of Cuernavaca Park• The ex is t ing South P la t te R iver ’s s lope i s

the most s ign i f i can t in th is s t re tch .• Poten t ia l to regrade the r i ve r to p rov ide fo r

in - r i ve r rec rea t iona l oppor tun i t ies . • The po ten t ia l fo r s to rmwater t rea tment

ex is ts due to the mu l t ip le la rge ou t fa l l s tha t day l igh t in the park ad jacent to the South P la t te R iver.

16

13th & Zuni • Pr iva te deve loper i s in te res ted in connec t ing

p roposed deve lopment to the r i ve r.• Poss ib le eas t r i ve r edge t ra i l ex tens ion .

25

Elitch Gardens • There i s redeve lopment po ten t ia l a long the

r i ve r ’s edge o f the E l i t ch Gardens ’ p roper ty.22

Confluence Park• Ex is t ing park ad jacent to the South P la t te

R iver.• Proposed improvements inc lude improved

access to the r i ve r.• Improved wh i te water rec rea t ion .

19

Fishback Park• Ex is t ing park ad jacent to the South P la t te

R iver.• Poten t ia l to re -g rade the r i ve r bank .

20

Stormwater Treatment Facil i ty• Proposed de ten t ion bas in w i th b io re ten t ion

to in te rcep t an ex is t ing 48” s to rm p ipe .• Poten t ia l to coord ina te e f fo r ts w i th des ign

team.

21

Platte Valley Trolley Tracks• Due to recent changes in ownersh ip o f

the t ro l ley t racks , there i s a po ten t ia l fo r re loca t ion .

• Poten t ia l to re -g rade the r i ve r bank .Poten t ia l to reduce f lood sp i l l .

24

Crescent Park• Ex is t ing park ad jacent to the South P la t te

R iver.• Poten t ia l to re -g rade the r i ve r bank .

23

Parking Lot At 7th & Alcott • Ex is t ing park ing lo t underused• Poten t ia l fo r land acqu is i t ion

29

Weir Gulch Marina Park• Ex is t ing park tha t connec ts to the r i ve r• Tra i l improvements needed to connec t Wei r

Tra i l to the sou th

28

Zuni Power Plant and Substation • Poten t ia l fo r land acqu is i t ion i f the ex is t ing

fac i l i t i es re loca te in the fu tu re• Poss ib le eas t r i ve r t ra i l ex tens ion

26

Denver Water ’s “One Building”• Future s i te o f Denver Water admin is t ra t ion

bu i ld ing .• Poss ib i l i t y tha t bu i ld ing wou ld p roduce send

min ima l amounts o f add i t iona l water in to the South P la t te R iver dur ing the d ry season.

30

Frog Hollow Park/CDOT EDB• Ex is t ing nar row park w i th s teep s lopes and

a new 23 ’ w ide t ra i l• Poten t ia l to regrade ex is t ing park

31

Sun Valley Park• Future 8 -acre park p lanned a long the South

P la t te R iver. • Poten t ia l to coord ina te e f fo r ts w i th des ign

team

27

O p p o r t u n i t i e s C o n s t r a i n t sN e i g h b o r h o o d P l a n R e c o m m e n d a t i o n s

• Wet lands a t R ivers ide Cemetery i s cons t ra ined by the Bur l ing ton Cana l .

• The South P la t te R iver has min ima l f low much o f the year due to the Bur l ing ton Cana l D ivers ion .

1

2

.

Sewer Line• Exis t ing sani tary sewer l ine running adjacent to

the South Plat te River.4

Heron Pond/Heller Open Space• L imi ted oppor tun i ty fo r pond expans ion due

to con tamina t ion .

Proposed North Metro Rail Bridge

3

6

Numerous Bridges• Const ra in ts fo r fu tu re r i ve r mod i f i ca t ions .• With t im ing and proper coord ina t ion the

p roposed br idges can be des igned to accommodate fu tu re r i ve r mod i f i ca t ions .

5

Ringsby Court• Ex is t ing R ingsby Cour t to remain .•It is unlikely that access to the river or additional

available land will occur in this area in the near future.

7

Proposed North Metro Rail Bridge8

Railroad Yard• Ex is t ing edges ad jacent to ra i l road yards

a re min ima l .• I t i s un l i ke ly tha t access to the r i ve r o r

add i t iona l ava i lab le land w i l l occur in th is a rea in the near fu tu re .

9

Lincoln Park Light Industrial Zone• I so la ted a rea o f l i gh t indus t r ia l i s l i ke ly to

remain10

Neighborhood p lans w i th in Adams County have no t been rev iewed a t th is t ime.A

The 2015 E ly r ia & Swansea Ne ighbrhoods P lan recommends improv ing phys ica l access a t G lobev i l le Land ing Park

The 2015 E ly r ia & Swansea Ne ighbrhoods P lan iden t i f ied severa l ga teways a long the South P la t te R iver

B

C

The 2003 R iver Nor th P lan recommends the vaca t ion o f Ark ins Cour t in some loca t ions to make way fo r new deve lopment w i th a d i rec t connec t ion to the r i ve r and the add i t ion o f open space.

The 2009 38 th and B lake S ta t ion Area P lan sugges ts tha t fu tu re deve lopment o f the a rea w i l l emphas ize i t s indus t r ia l her i tage , h is to r i c ne ighborhoods , and ensure access and prov ide enhancements to the P la t te R iver g reenway.

D

E

The 2007 Denver Downtown Area P lan iden t i f ies mu l t ip le connec t ion po in ts to c ross the South P la t te R iver.

The 2007 Denver Downtown Area P lan iden t i f ies the South P la t te R iver as a ma jo r amen i ty fo r the C i ty.

F

G

The 1991 Cent ra l P la t te Va l ley Comprehens ive P lan Amendment recogn izes the South P la t te R iver and Cher ry Creek as foc i o f the open space sys tem.

The 2005 Je f fe rson Park Ne ighborhood P lan recogn izes tha t i t i s a s t reng th fo r the Cu l tu ra l /Educat iona l Fac i l i t y D is t r i c t to be ad jacent to the South P la t te R iver.

The 2007 Denver Downtown Area P lan iden t i f ies mu l t ip le connec t ion po in ts to c ross the South P la t te R iver.

Zun i & Lower Co l fax Area i s a Cata ly t i c S i te in the 2013 South P la t te Cor r idor S tudy.

H

I

J

K

L The 2010 La A lma/L inco ln Park Ne ighborhood P lan ca l l s fo r the 13 th Avenue b ike lane as a c r i t i ca l e lement to improv ing connec t i v i t y to the P la t te R iver Tra i l .

The 2010 La A lma/L inco ln Park Ne ighborhood P lan ca l l s fo r improved access and enhanced t ra i l connec t ions to the South P la t te R iver.

The 1991 Va lverde Ne ighborhood P lan recogn izes tha t the ne ighborhood ’s namesake is “g reen va l ley ” due to i t s p rox imi ty to the South P la t te R iver and the ne ighborhood wou ld l i ke to s t reng then i t s re la t ionsh ip to the r i ve r.

The 2003 Baker Ne ighborhood P lan Wish L is t o f Ne ighborhood Pro jec ts : Bu i ld ing be t te r connec t ions f rom the res iden t ia l ne ighborhood to the South P la t te R iver, espec ia l l y the g reenway on the wes t s ide . Th is may inc lude pedes t r ian and b icyc le b r idges over I -25 and the r i ve r.

M

N

O

River Cor r idor Access

Water Access

In S t ream and R ipar ian Hab i ta t ( ie . R i f f les , Po in t Bars o r Benches)

Up land Hab i ta t

R iver f ron t Deve lopment

Water Qua l i t y

F lood R isk Reduc t ion

OPPORTUNITIES LEGEND RTD L igh t Ra i l S ta t ion (Proposed) RTD L igh t Ra i l S ta t ion (Ex is t ing) RTD Bus Stop Ne ighborhood Boundary

Ex is t ing Levee Ex is t ing Tro l ley Tracks Br idge Ex is t ing (P=Pedes t r ian Br idge) Br idge Proposed (P=Pedes t r ian Br idge)

Communi ty Garden

CITY OF DENVER DESIGNATED BIKE ROUTES O f f -S t ree t Reg iona l B ike Route On-St ree t / Shar row / S idewa lk B ike Route STORMWATER EXISTING AND PROPOSED CONDITIONS 0 ” -24” Ex is t ing S to rmwater Out fa l l s 24” -48” Ex is t ing S to rmwater Out fa l l s >48” Ex is t ing S to rmwater Out fa l l s Proposed Water Quality Treatment Areas Approximate Location of the

Proposed Outfal ls Based on the Denver Storm Drainage

Master Plan (Sept. 2014)

Proposed Out fa l l Name Size

L e g e n d