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Ha rtfo rd F Ha rtfo rd F lo o d Co ntro l Syste m lo o d Co ntro l Syste m Ove rvie w a nd Sta tus Ove rvie w a nd Sta tus Pre se nta tio n to Ma yo r Bro nin & the USACE Pre se nta tio n to Ma yo r Bro nin & the USACE Rive rfro

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SLIDE 1

Ha rtfo rd F lo o d Co ntro l Syste m Ove rvie w a nd Sta tus Ha rtfo rd F lo o d Co ntro l Syste m Ove rvie w a nd Sta tus

Pre se nta tio n to Ma yo r Bro nin & the USACE

Rive rfro nt Bo a tho use

Ha rtfo rd, Co nne c tic ut Ma rc h 15, 2016

Pre se nta tio n to Ma yo r Bro nin & the USACE

Rive rfro nt Bo a tho use

Ha rtfo rd, Co nne c tic ut Ma rc h 15, 2016

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SLIDE 2
  • City o f Ha rtfo rd
  • Unite d Sta te s Army Co rps o f E

ng ine e rs (USACE )

  • Rive rfro nt Re c a pture
  • Othe rs

– F

uss & O’ Ne ill, I nc .

– GE

I Co nsulta nts, I nc .

I ntro duc tio ns I ntro duc tio ns

slide-3
SLIDE 3

Sha re d Re spo nsib ility Sha re d Re spo nsib ility

slide-4
SLIDE 4

I mple me nting the Risk F ra me wo rk I mple me nting the Risk F ra me wo rk

  • Inventory
  • Periodic

Inspections

Condition

  • Risk Assessments
  • Communication

Context

  • Advise
  • Plan Path

Forward

Action Answer the Basic Questions Tell the Story Build Shared Solutions

Today

  • Plan IRRMs
  • SJs & FRMs
  • SWIFs
  • 408s
  • Risk Assessments
  • Sponsor Meetings
  • Public Dialogue
  • National Levee Database
  • Inspection Ratings

And Eligibility

slide-5
SLIDE 5
  • 1. Ba c kg ro und
  • 2. Co nstruc tio n Wo rk

Pe rfo rme d

  • 3. Ma inte na nc e &

Mo nito ring

  • 4. SWI

F Pro g ra m

  • 5. Unde rse e pa g e Co nc e rns

Ag e nda Ag e nda

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SLIDE 6

Ba c kg ro und Ba c kg ro und

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SLIDE 7

Co nne c tic ut Rive r Ba sin Co nne c tic ut Rive r Ba sin

(Source: USACE)

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SLIDE 8

F lo o d o f 1936 F lo o d o f 1936

L

  • o king No rth o ve r Dutc h Po int T
  • ward Bulke le y Bridg e

L

  • o king No rth o ve r Dutc h Po int T
  • ward Bulke le y Bridg e

(Source: Connecticut History Online)

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SLIDE 9

F lo o d o f 1936 F lo o d o f 1936

F ro nt Stre e t Ne ig hb o rho o d with Bulke le y Bridg e in the Distanc e F ro nt Stre e t Ne ig hb o rho o d with Bulke le y Bridg e in the Distanc e

(Source: Connecticut History Online)

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SLIDE 10

F lo o d o f 1936 F lo o d o f 1936

So ldie rs’ and Sa ilo rs’ Me mo ria l Arc h a nd Ca pito l Building So ldie rs’ and Sa ilo rs’ Me mo ria l Arc h a nd Ca pito l Building

(Source: Connecticut Historical Society)

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SLIDE 11

F lo o d Co ntro l Syste m Co nstruc tio n F lo o d Co ntro l Syste m Co nstruc tio n

  • Autho rize d b y the E

me rg e nc y Re lie f Appro pria tio ns Ac ts o f 1936, 1937, a nd 1938

  • Co nstruc te d in se ve ra l pha se s b y the US Army Co rps
  • f E

ng ine e rs fro m 1938 to 1981

  • Co nstruc tio n o f the d ike s a nd flo o dwa ll, 3 pump

statio ns, a nd Pa rk Rive r c o nduit b e g a n in 1938 a nd wa s c o mple te d in 1944

  • T

he la st po rtio ns (e .g ., F

  • lly Bro o k c o nduits, Pa rk Rive r

c o nduit e xte nsio n, 2 pumping sta tio ns, a nd the a uxilia ry c o nduit) we re c o mple te d b y 1981

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SLIDE 12

F lo o d Co ntro l Syste m Co nstruc tio n F lo o d Co ntro l Syste m Co nstruc tio n

E a rthe n le ve e c o nstruc tio n so uth o f Bulke le y Bridg e (c irc a 1940) E a rthe n le ve e c o nstruc tio n so uth o f Bulke le y Bridg e (c irc a 1940)

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SLIDE 13

F lo o d Co ntro l Syste m Co nstruc tio n F lo o d Co ntro l Syste m Co nstruc tio n

F lo o dwall c o nstruc tio n so uth o f Bulke le y Bridg e (c irc a 1940) F lo o dwall c o nstruc tio n so uth o f Bulke le y Bridg e (c irc a 1940)

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SLIDE 14
  • Pro vide s pro te c tio n a g a inst flo o ding fo r a ppro xima te ly

3,000 a c re s o f de ve lo pe d urb a n a re a

  • Ma in c o mpo ne nts o f the syste m inc lude :

– 6.4 mile s o f e a rthe n dike s – 0.8 mile s o f c o nc re te flo o dwa lls – Six pumping sta tio ns – T

wo dra ina g e b a sins

– T

hre e pre ssure c o nduits

– An a uxilia ry c o nduit

Ha rtfo rd F lo o d Co ntro l Syste m: Ove rvie w Ha rtfo rd F lo o d Co ntro l Syste m: Ove rvie w

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SLIDE 15

Ha rtfo rd F lo o d Co ntro l Syste m: Ove rvie w Ha rtfo rd F lo o d Co ntro l Syste m: Ove rvie w

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SLIDE 16

T ypic a l E a rthe n Dike Cro ss-Se c tio n T ypic a l E a rthe n Dike Cro ss-Se c tio n

Drainage Ditch Rock Toe Drain Free Draining River Sand Vegetative Cover Gravel Access Road Steel Sheet piling Lateral Drain Hand Placed Riprap Select Impervious Material Blanket Native Material

Composition Overview

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SLIDE 17

T ypic a l E a rthe n Dike Cro ss-Se c tio n T ypic a l E a rthe n Dike Cro ss-Se c tio n

Drainage Overview

Infiltration

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SLIDE 18

L e ve e a nd F lo o d E le va tio n Co mpa riso n L e ve e a nd F lo o d E le va tio n Co mpa riso n

~10 fe e t fre e boa r d for the 500- ye a r flood 100- ye a r flood 500- ye a r flood Pr

  • ba ble Ma ximum

(“Cata str

  • phic ”) flood

T

  • p of L

e ve e

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SLIDE 19

F lo o d o f 1984 F lo o d o f 1984

Vie w lo o king no rth o f So uth Me a do ws Dike a nd Bra ina rd Airpo rt Vie w lo o king no rth o f So uth Me a do ws Dike a nd Bra ina rd Airpo rt

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SLIDE 20

Re c e nt F lo o d E ve nts Re c e nt F lo o d E ve nts

Rive rfro nt Pla za Rive rfro nt Pla za

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SLIDE 21

Re c e nt F lo o d E ve nts Re c e nt F lo o d E ve nts

Rive rfro nt Bo a t Ho use Rive rfro nt Bo a t Ho use

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SLIDE 22

F E MA F lo o d Ma p F E MA F lo o d Ma p

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SLIDE 23
  • Co mple te d in July 2009 a nd in e ffe c t fo r 10 ye a rs
  • Pre ve nts o wne rs within the le ve e pro te c te d a re a fro m

ha ving to o b ta in ma nda to ry flo o d insura nc e

F E MA Ac c re dita tio n F E MA Ac c re dita tio n

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SLIDE 24
  • As part o f the F

E MA Ac c re ditatio n pro c e ss:

– Se nt ma ile rs to a ffe c te d

pro pe rty o wne rs

– Co nduc te d a Pub lic

I nfo rma tio n Me e ting (te le vise d o n pub lic a c c e ss)

  • No te : Minima l re spo nse

fro m the pub lic

F E MA Ac c re dita tio n Pub lic Outre a c h F E MA Ac c re dita tio n Pub lic Outre a c h

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SLIDE 25

Use d c o mpute r to o ls (Arc GIS & HE C-Ge o RAS) to simula te a le ve e b re a c h during a F E MA 100-ye a r flo o d in e a c h o f fo ur ne ig hb o rho o ds a nd de ve lo pe d ma ps sho wing po ssib le timing a nd e xte nts

  • f flo o ding

L e ve e Bre a c h Ana lysis L e ve e Bre a c h Ana lysis

Bre a c h L

  • c a tion
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SLIDE 26
  • Wo rke d with Ha rtfo rd

E me rg e nc y Ope ra tio ns Ce nte r (E OC) to pre pa re a F lo o d E va c ua tio n Pla n

  • Inc o rpo ra te d ma ps fro m

le ve e b re a c h a na lysis

  • Ha rtfo rd E

OC re c e ive input fro m va rio us o the r c ity a g e nc ie s

E me rg e nc y Ope ra tio ns Pla n Anne x E me rg e nc y Ope ra tio ns Pla n Anne x

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SLIDE 27
  • Wo rke d with F

E MA a nd the USACE during the 2009 Ac c re ditatio n pro c e ss

  • Re c e ive d c o st sha ring a ssista nc e fro m the State o f

Co nne c tic ut to fund pre vio us pro je c ts

– Pro je c ts pe rfo rme d unde r CT

DE E P o ve rsig ht

  • De ve lo pe d o utsta nding wo rking re la tio nships with

the se a g e nc ie s

Re g ula to ry Outre a c h Re g ula to ry Outre a c h

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SLIDE 28
  • Assiste d Re pre se nta tive Jo hn L

a rse n a nd his sta ff during a Ma rc h 2013 L e ve e to ur a nd pre ss e ve nt in a n a tte mpt to re c e ive fe de ra l funding fo r F lo o d Co ntro l Syste m impro ve me nts

  • Pursuing a ll a vaila b le funding o ppo rtunitie s

– F

E MA – No e lig ib le pro je c ts this c yc le

– Co nne c tic ut I

nstitute fo r Re silie nc e a nd Clima te Ada pta tio n (CI RCA)

– Wa te r Re so urc e s De ve lo pme nt Ac t (WRDA)

Po litic a l Outre a c h & Gra nt F unding Po litic a l Outre a c h & Gra nt F unding

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SLIDE 29

Co nstruc tio n Wo rk Pe rfo rme d Co nstruc tio n Wo rk Pe rfo rme d

slide-30
SLIDE 30

Ve g e ta tio n Cle a ring Ve g e ta tio n Cle a ring

No rth Me a do ws Dike Ne a r Po lic e F iring Ra ng e No rth Me a do ws Dike Ne a r Po lic e F iring Ra ng e

Be fore Be fore Afte r Afte r

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SLIDE 31

Anima l Burro w Re pa ir Anima l Burro w Re pa ir

A po rtio n o f No rth Me a do ws Dike unde r re pa ir (sta ke s sho w b urro w lo c a tio ns) A po rtio n o f No rth Me a do ws Dike unde r re pa ir (sta ke s sho w b urro w lo c a tio ns)

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SLIDE 32

Ripra p Re pa ir Ripra p Re pa ir

Re mo va l o f disturb e d ripra p Re mo va l o f disturb e d ripra p

slide-33
SLIDE 33

Dra ina g e Ditc h Re sto ra tio n Dra ina g e Ditc h Re sto ra tio n

Dra ina g e ditc h No rth o f Hartfo rd L a ndfill Dra ina g e ditc h No rth o f Hartfo rd L a ndfill

Be fore Be fore Afte r Afte r

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SLIDE 34

T

  • e Dra in Re pa ir

T

  • e Dra in Re pa ir

T

  • e dra in c lo g ge d with se dime nt b e ing c le a ne d

T

  • e dra in c lo g ge d with se dime nt b e ing c le a ne d
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SLIDE 35

L a te ra l Dra in Pipe Re pa ir L a te ra l Dra in Pipe Re pa ir

L a te ra l dra in b e ing re pa ire d with HDPE sle e ve L a te ra l dra in b e ing re pa ire d with HDPE sle e ve

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SLIDE 36

Co nc re te F lo o dwa ll Re pa ir Co nc re te F lo o dwa ll Re pa ir

Re pa ire d flo o dwa ll ke ywa y ne a r MI RA Po we rpla nt Re pa ire d flo o dwa ll ke ywa y ne a r MI RA Po we rpla nt

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SLIDE 37

Auxilia ry Co nduit Se dime nt Re mo va l Auxilia ry Co nduit Se dime nt Re mo va l

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SLIDE 38

No rth & So uth Me a do ws Po nd Dre dg ing No rth & So uth Me a do ws Po nd Dre dg ing

slide-39
SLIDE 39

No rth & So uth Me a do ws Po nd Dre dg ing No rth & So uth Me a do ws Po nd Dre dg ing

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SLIDE 40

So uth Me a do ws Pump ing Sta tio n Re ha b So uth Me a do ws Pump ing Sta tio n Re ha b

Uppe r L e ve l Uppe r L e ve l L

  • we r L

e ve l L

  • we r L

e ve l

slide-41
SLIDE 41

So uth Me a do ws Pump ing Sta tio n Re ha b So uth Me a do ws Pump ing Sta tio n Re ha b

BE F ORE AF T E R

Pro pe lle rs Pro pe lle rs

slide-42
SLIDE 42

Sto p L

  • g Struc ture Re pa ir

Sto p L

  • g Struc ture Re pa ir

Sill Insta llatio n a t Clo sure 2 ne a r No rth Me a do ws Pumping Sta tio n Sill Insta llatio n a t Clo sure 2 ne a r No rth Me a do ws Pumping Sta tio n

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SLIDE 43

Ma inte na nc e & Mo nito ring Ma inte na nc e & Mo nito ring

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SLIDE 44

Ma inte na nc e & Pre pa re dne ss Ma inte na nc e & Pre pa re dne ss

  • E

a rthe n L e ve e s

– Mo wing o f le ve e s – Ditc h c le a ring – He rb ic ide o f ripra p – Anima l b urro w re pa irs – F

lo o d e ve nt c le a nup

  • Clo sure Struc ture s

– T

ria l e re c tio ns

  • Pump Sta tio n

– E

q uipme nt te sting

– Ro utine ma inte na nc e

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SLIDE 45

F lo o d E ve nt Mo nito ring F lo o d E ve nt Mo nito ring

  • City Pe rfo rms Mo nito ring Pre sc rib e d in:

– Ope ra tio n & Ma inte na nc e Ma nua l – E

me rg e nc y Ope ra tio n Pla n (Anne x N)

PHASE IB MONIT ORING (>16 F E E T )

Pa tro l L e ve e Syste m Da ily

PHASE II F L OO D MONIT ORING (>24 F T )

E sta b lish E me rg e nc y Ops Ce nte r @ Pub lic Sa fe ty Co mple x Pa tro l L e ve e e ve ry 8 ho ur s Co nta c t me d ia if wa rra nte d

L E VE E BRE ACH (>31.2 F T OR BRE ACH POT E NT IAL )

DPW & City o ffic ia ls wo rk to g e the r to info rm re side nts

PHASE IA MONIT ORING (>12 F E E T )

E nsure a va ila b ility o f Sta ff a nd Ma te ria ls

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SLIDE 46

SWI F Pro g ra m SWI F Pro g ra m

slide-47
SLIDE 47
  • L

a te 2014: “Una c c e ptab le ” ra ting b y USACE b a se d o n USACE Ro utine Inspe c tio n June 2013

  • Syste m te mpo ra rily pla c e d o n “Ina c tive ” sta tus – no t

e lig ib le fo r fe de ra l funding if syste m is d a ma g e d

  • Aug ust 2015: “Ac tive ” sta tus is re sto re d to the syste m

while unde r the SWIF Pro g ra m

Syste m-wide Impro ve me nt F ra me wo rk (SWIF ) Pro g ra m Syste m-wide Impro ve me nt F ra me wo rk (SWIF ) Pro g ra m

slide-48
SLIDE 48
  • City must de ve lo p a SWIF

Pla n tha t:

– Outline s the c o st a nd sc he dule to a ddre ss syste m de fic ie nc ie s – I

s c o mple te d b y Aug ust 2017

  • In the Inte rim, the City must a lso :

– I

mple me nt risk re duc tio n me a sure s until re pa irs a re ma de

– I

mple me nt a pub lic o utre a c h pro g ra m (e .g ., ma ile rs, we b site )

– Co ntinue to pe rfo rm flo o d e ve nt inspe c tio ns

Syste m-wide Impro ve me nt F ra me wo rk (SWIF ) Pro g ra m Syste m-wide Impro ve me nt F ra me wo rk (SWIF ) Pro g ra m

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SLIDE 49

Syste m De fic ie nc ie s Syste m De fic ie nc ie s

De fic ie nc y Sta tus

CTR ive r

Enc ro a c hme nt: So il p ile with he a vy ve g e ta tio n a lo ng la ndside to e Co mple te d Clo sure Struc ture s (Ge ne ra l): Re mo ve ve g e ta tio n, Re pa ir c ra c king , a nd pe rfo rm tria l c lo sure s City to p e rfo rm tria ls 2016; Ne w a luminum p a ne ls insta lle d fo r se ve ra l c ro ssing s; Wo rking with ra ilro a d fo r la st c ro ssing whic h re q uire d tra c ks to b e c ut fo r tria ls MDC Se we r Cro ssing : vide o inspe c tio n re q uire d Pla nne d fo r 2016 Inspe c tio ns, ma y ha ve fo llo w-up re p a irs T

  • e Dra ina g e Syste ms: visua lly o r vide o inspe c t

Pla nne d fo r 2016 Inspe c tio ns, Exp e c te d to re q uire to e d ra in re pla c e me nt Clo sure Struc ture s - Co rro d e d b ulkhe a d d o o r @ MIRA Co mple te d - CS Re mo ve d Esta b lish a flo o d wa ll tilting mo nito r p ro gra m Pro po se d fo r 2016 Visua lly o r vid e o insp e c t a ll c ulve rts a nd disc ha rg e p ipe s Pla nne d fo r 2016 Inspe c tio ns, ma y ha ve fo llo w-up re p a irs

Par k R ive r

Visua l o r vid e o insp e c tio n o f the Fo lly Bro o k Co nd uit, Gully Bro o k Co nd uit, Pa rk Rive r Co nd uit, a nd la te ra l sub d ra ins Pla nne d fo r 2016 Inspe c tio ns, ma y ha ve fo llo w-up re p a irs Po pe Pa rk PS: Co rro sio n o n the inta ke / d isc ha rg e pipe fla ng e d c o nne c tio ns. Sa nd a nd re pa int c o nne c tio ns. Re pa ir c ra c ke d fla ng e s. Po pe Pa rk Pumping Sta tio n re q uire s re pla c e me nt o f a ll suc tio n a nd d isc ha rg e p ip ing

  • 37 Ite ms in a ll de e me d “Una c c e ptab le ” b y USACE

– Any o ne o f the “E

lig ib ility Crite ria ” de fic ie nc ie s b e lo w pla c e s the e ntire syste m in “ I na c tive Sta tus”

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SLIDE 50
  • T

he ma jo rity o f de fic ie nc ie s tha t le a d to the syste m b e ing pla c e d o n ina c tive sta tus we re re la te d to no t pe rfo rming the re q uire d inspe c tio ns

  • Ho we ve r, b a se d o n pa st wo rk the ne e d fo r a dditio na l

re pa irs to the syste m a re a ntic ipa te d

  • T

he re fo re , the o ve ra ll SWI F Pro g ram will inc lude a c o mpre he nsive a sse ssme nt o f kno wn a nd po te ntia l impro ve me nts to the e ntire flo o d c o ntro l syste m

Syste m De fic ie nc ie s Syste m De fic ie nc ie s

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SLIDE 51

Ca pita l I mpro ve me nt Pro je c ts Ca pita l I mpro ve me nt Pro je c ts

Pr

  • je c t

Priority T

  • tal E

st. Cost E MBANKME NT S/ F L OODWAL L S

  • 1. Bulke le y Brid g e Unde rse e pag e Mitig a tio n

Hig h $12,500,000

  • 2. No rth a nd So uth Me a do ws Dike T
  • e Dra in Insta lla tio n

Hig h $650,000

  • 3. So uth Me a do ws Dike Unde rse e pa g e a nd Impe rvio us

Bla nke t Me dium $5,500,000

  • 4. F

lo o dwa ll Inspe c tio n a nd T ilting Po rtio n Mo nito ring Me dium $10,000

  • 5. Clo sure Struc ture Upg ra de s

Hig h $1,369,000

  • 6. Co nc re te F

lo o d Wa ll Upg ra de s (Jo int Re pa irs) L

  • w

$500,000

  • 7. Utility Pe ne tra tio n Ab a ndo nme nt & Mo dific a tio n

L

  • w

$500,000

PUMPING ST AT IONS

  • 8. Pump Sta tio n Inspe c tio ns

Hig h $130,000

  • 9. No rth a nd So uth Me a do ws Pump Sta tio n T

ra sh Ra c k Re pla c e me nt Hig h $2,000,000

  • 10. Re pa irs to inta ke a nd disc ha rg e pipe line s a t Po pe

Pa rk, Bushne ll Pump, a nd Armo ry Pump Sta tio ns Hig h $6,000,000

  • 11. So uth Me a do ws Pumping Sta tio n Va lve

Impro ve me nts Hig h $3,870,000

  • 12. No rth Me a do ws Pump ing Sta tio n Impro ve me nts

Hig h $4,200,000

  • 13. Bushne ll Pa rk Pumping Sta tio n Impro ve me nts

Hig h $2,800,000

  • 14. K

e ne y L a ne Pumping Sta tio n Impro ve me nts Me dium $2,800,000

  • 15. Pumping Sta tio n T

ra ining Pro g ra m Me dium $74,900

  • 16. So uth Me a do ws Pumping Sta tio n Additio na l

Impro ve me nts L

  • w

$400,000

  • 17. Armo ry Pumping Sta tio n Impro ve me nts

L

  • w

$2,800,000

  • 18. Po pe Pa rk Pumping Sta tio n Impro ve me nts

L

  • w

$2,900,000

  • 19. Pumping Sta tio n Auto ma tio n Impro ve me nts

L

  • w

$3,750,000

INT E RIOR DRAINAGE & CONDUIT S

  • 20. We sto n Stre e t Dra ina g e (Pha se 1B)

Hig h $300,000

  • 21. No rth Bra nc h Pa rk Rive r Cha nne l Impro ve me nts

L

  • w

$3,500,000

  • 22. Pa rk Rive r Co nduit Upg ra de s

L

  • w

$10,000,000

  • 23. Fo lly Bro o k Co nduit Re pla c e me nt

L

  • w

$8,000,000

  • 24. Ce me te ry Bro o k Co nduit Upg ra de s

L

  • w

$1,000,000

T OT AL $75,553,900 Pr

  • je c t

Priority T

  • tal E

st. Cost E MBANKME NT S/ F L OODWAL L S

  • 1. Bulke le y Brid g e Unde rse e pag e Mitig a tio n

Hig h $12,500,000

  • 2. No rth a nd So uth Me a do ws Dike T
  • e Dra in Insta lla tio n

Hig h $650,000

  • 3. So uth Me a do ws Dike Unde rse e pa g e a nd Impe rvio us

Bla nke t Me dium $5,500,000

  • 4. F

lo o dwa ll Inspe c tio n a nd T ilting Po rtio n Mo nito ring Me dium $10,000

  • 5. Clo sure Struc ture Upg ra de s

Hig h $1,369,000

  • 6. Co nc re te F

lo o d Wa ll Upg ra de s (Jo int Re pa irs) L

  • w

$500,000

  • 7. Utility Pe ne tra tio n Ab a ndo nme nt & Mo dific a tio n

L

  • w

$500,000

PUMPING ST AT IONS

  • 8. Pump Sta tio n Inspe c tio ns

Hig h $130,000

  • 9. No rth a nd So uth Me a do ws Pump Sta tio n T

ra sh Ra c k Re pla c e me nt Hig h $2,000,000

  • 10. Re pa irs to inta ke a nd disc ha rg e pipe line s a t Po pe

Pa rk, Bushne ll Pump, a nd Armo ry Pump Sta tio ns Hig h $6,000,000

  • 11. So uth Me a do ws Pumping Sta tio n Va lve

Impro ve me nts Hig h $3,870,000

  • 12. No rth Me a do ws Pump ing Sta tio n Impro ve me nts

Hig h $4,200,000

  • 13. Bushne ll Pa rk Pumping Sta tio n Impro ve me nts

Hig h $2,800,000

  • 14. K

e ne y L a ne Pumping Sta tio n Impro ve me nts Me dium $2,800,000

  • 15. Pumping Sta tio n T

ra ining Pro g ra m Me dium $74,900

  • 16. So uth Me a do ws Pumping Sta tio n Additio na l

Impro ve me nts L

  • w

$400,000

  • 17. Armo ry Pumping Sta tio n Impro ve me nts

L

  • w

$2,800,000

  • 18. Po pe Pa rk Pumping Sta tio n Impro ve me nts

L

  • w

$2,900,000

  • 19. Pumping Sta tio n Auto ma tio n Impro ve me nts

L

  • w

$3,750,000

INT E RIOR DRAINAGE & CONDUIT S

  • 20. We sto n Stre e t Dra ina g e (Pha se 1B)

Hig h $300,000

  • 21. No rth Bra nc h Pa rk Rive r Cha nne l Impro ve me nts

L

  • w

$3,500,000

  • 22. Pa rk Rive r Co nduit Upg ra de s

L

  • w

$10,000,000

  • 23. Fo lly Bro o k Co nduit Re pla c e me nt

L

  • w

$8,000,000

  • 24. Ce me te ry Bro o k Co nduit Upg ra de s

L

  • w

$1,000,000

T OT AL $42,200,000

slide-52
SLIDE 52

CI P Pla n CI P Pla n

Proje c t AL R E ADY F UNDE D F Y17 F Y18 F Y19 F Y20 F Y21 BE YOND 5 YE AR CIP E MBANKMENT S/ F L OODWAL L S

  • 1. Bulkeley Bridge Underseepage Mitigation
  • 2. North and South Meadows Dike Toe Drain Installation
  • 3. South Meadows Dike Underseepage and Impervious Blanket
  • 4. Floodwall Inspection and Tilting Portion Monitoring
  • 5. Closure Structure Upgrades
  • 6. Concrete Flood Wall Upgrades (Joint Repairs)
  • 7. Utility Penetration Abandonment & Modification

PUMPING ST AT IONS

  • 8. Pump Station Inspections
  • 9. North Meadow and South Meadows Pump Station Trash Rack Replacement
  • 10. Repairs pipelines at Pope, Bushnell, and Armory Pump Stations
  • 11. South Meadows Pumping Station Valve Improvements
  • 12. North Meadows Pumping Station Improvements
  • 13. Bushnell Park Pumping Station Improvements
  • 14. Keney Lane Pumping Station Improvements
  • 15. Pumping Station Training Program
  • 16. South Meadows Pumping Station Additional Improvements
  • 17. Armory Pumping Station Improvements
  • 18. Pope Park Pumping Station Improvements
  • 19. Pumping Station Automation Improvements

INT ER IOR DRAINAGE & CONDUIT S

  • 20. Weston Street Drainage (Phase 1B)
  • 21. North Branch of the Park River Channel Improvements
  • 22. Park River Conduit Upgrades
  • 23. Folly Brook Conduit Replacement
  • 24. Cemetery Brook Conduit Upgrades

SYST E M- WIDE MAINT ENANCE

  • 25. Perform Routine Inspections
  • 27. Levee System Operations

T OT AL $8.0 M $2.0 M $10.9 M $9.9 M $10.7 M $12.3 M $25.4 M CIP Alloc ation $20.0 M

  • $0.9 M

$9.9 M $10.7 M $12.3 M $25.4 M

DESIGN/PERMITTING Phase in Red CONSTRUCTION/CA Phase in Green Amount Bonde d = $10M

slide-53
SLIDE 53

Unde rse e pa g e Co nc e rns Unde rse e pa g e Co nc e rns

slide-54
SLIDE 54

Cuto ff E mb e dde d into Unde rlying Cla y Cuto ff E mb e dde d into Unde rlying Cla y

Connecticut River Connecticut River Relatively Previous Sandy Soil Relatively Impervious Clay or Glacial Till

Steel Sheetpile Cutoff Seepage Flow

slide-55
SLIDE 55

Sho rt Cut-o ff Wa ll Sho rt Cut-o ff Wa ll

Connecticut River Connecticut River Relatively Previous Sandy Soil Relatively Impervious Clay or Glacial Till

Steel Sheetpile Cutoff Seepage Flow

Ground Surfa c e Be fore I- 84/ I- 91 CT DOT Upg ra de s

slide-56
SLIDE 56
  • F
  • llo wing the c o nstruc tio n o f the le ve e

syste m in the e a rly 1940s, the a re a wa s la rg e ly unc ha ng e d until the c o nstruc tio n o f the I-91 & I-84 Inte rc ha ng e

  • Co nne c tic ut Bo ule va rd (future I-91)

sho wn he re to ra mp up g ra dua lly to me e t the g ra de o f Mo rg a n Stre e t a nd the Bulke le y Bridg e

Ove rvie w o f Are a o f Co nc e rn Ove rvie w o f Are a o f Co nc e rn

Vie w o f Bulke le y, F

  • unde r

s, a nd Cha rte r Oa k Bridg e s, 1957 Vie w o f Bulke le y, F

  • unde r

s, a nd Cha rte r Oa k Bridg e s, 1957

Bulkeley Bridge Founders Bridge Charter Oak Bridge Concrete Floodwall Connecticut Boulevard Current Location of I-91/I-84 Interchange

De ta il o f Are a o f F uture I nte rc ha ng e De ta il o f Are a o f F uture I nte rc ha ng e

(Source: Larned, Larry. (2002) Images of America: Route 15, the Road to Hartford. Arcadia Publishing, Inc)

slide-57
SLIDE 57

Ove rvie w o f Are a o f Co nc e rn Ove rvie w o f Are a o f Co nc e rn

Vie w o f Bulke le y Bridg e , lo o king No rth

North

Concrete Floodwall Interstate I-91 Northbound Interstate I-91 Southbound Interstate I-84

slide-58
SLIDE 58

Ove rvie w o f Are a o f Co nc e rn Ove rvie w o f Are a o f Co nc e rn

Vie w o f Gro ve Stre e t On Ra mp, lo o king No rth

slide-59
SLIDE 59

Se e pa g e Mo nito ring Se e pa g e Mo nito ring

slide-60
SLIDE 60
  • Co nditio ns w/ She e t Pile s (No rth Me a d o ws Dike )

Se e pa g e Mo nito ring Se e pa g e Mo nito ring

slide-61
SLIDE 61
  • Co nditio ns witho ut She e t Pile s (Bulke le y Bridg e )

Se e pa g e Mo nito ring Se e pa g e Mo nito ring

River Level Measured at Bulkeley Bridge B147 B134 B148 B149

slide-62
SLIDE 62
  • 1. F

lo o d Co ntro l Syste m is F E MA-Ac c re dite d to the 100- ye a r flo o d e le va tio n

  • 2. F

lo o d Co ntro l Syste m is c urre ntly “Ac tive ” pe r the USACE a nd the City is e lig ible fo r F e de ra l funding if da ma g e o c c urs to the syste m

  • 3. SWIF

Pla n de a dline is Aug ust 2017; Risk Re duc tio n Me a sure s a nd Pub lic Outre a c h must b e c o nduc te d in the inte rim

  • 4. T

he City’ s CIP o utline s the stra te g y to a ddre ss e xpe c te d re pa irs a nd upg ra de s to the syste m

  • 5. DPW sta ff is c a pa b le o f ma inta ining a nd inspe c ting

the syste m mo ving fo rwa rd

Co nc lusio ns Co nc lusio ns

slide-63
SLIDE 63

Que stio ns? Que stio ns?