Fleischmanns LFA Meeting 11-18-14 for Village

8/10/2019 Fleischmanns LFA Meeting 11-18-14 for Village

1/50

EastBranchFloodCommissionandDelawareCountySoil&WaterConservationDistrict | November18,2014

Local

Flood

Analysis

Project

MeetingVillageofFleischmannsDavid

Murphy,

P.E.,

CFM

MarkCarabetta,PWS,CFM


2/50

Agenda

Reviewstudyareaandmodelingconcepts

Overview

of

alternatives Reviewresultsofmodeling

Nextsteps


3/50

ProjectArea


4/50

HydraulicModelingConcepts


5/50

OverviewofAlternatives

Hydrologic(forfuturemeetings)

Alt

2

Storage

of

water

in

Lake

Switzerland Alt3 Vly/Emorybypass

Hydraulic(focusforthismeeting)

Alt1 Bridgereplacements

Alts4,5,6,7,8,9 Floodplaincreationor

enhancement


6/50


1. BridgeReplacements

a. EmoryBrookatMainStreet

b. EmoryBrookatWagnerAvenue

c. Vly CreekatMillStreet

d. Vly CreekatMainStreet

e. LittleRed

Kill

at

Snyder

Avenue

f. LittleRedKillatMainStreet

g. LittleRedKillatBridgeStreet

h. Bush

Kill

Creek

at

the

former

Bridge

Street

bridge

(subject

of

meetingsinJulyandAugust2014)

i. BushKillCreekatDepotStreet

j. BigRedKillatOldRoute28


7/50


FloodplainCreation,Enhancement,etc.

4. Upstreamarea(Emory/Vly confluence)

5. BridgeStreetareaofBushKill(topicofpreviousmeetings)

6. MiddleareaofBushKill(westendofWagnerAvenue,DepotStreet,

andlumberyards)

7. Downstreamarea

of

Bush

Kill

(along

Route

28)

DownstreamareaofBushKill+BigRedKill

8. Vly CreekatMillStreet

9. EmoryBrookatWagnerRoad

Mostalternativesarerelativelymodularanddontaffectoneanother


8/50

0 1000 2000 3000 4000

1500

1510

1520

1530

1540

1550

EB_Project_MM I Plan: Duplicate Effective Emory 5/15/2014

Main Channel Distance (ft)

Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground

ReviewResultsofModeling

Wag

nerStreetBri

dge

MainStreetBri

dge

Con

fluenc

ewithBush

kill

1a.BridgeReplacement EmoryBrookatMainStreet


9/50

0 50 100 150 200 250 3001535

1540

1545

1550

1555

1560

1565

EB_Project_MM I Plan: Dupli cate Effective Emory 5/15/2014EMO 09: Main Street

Station (ft)

Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground

Ineff

Bank Sta

.06 .04 .06




10/50



Proposed

improvements


11/50



Current

depths


12/50


13/50

0 500 1000 1500 2000 2500 3000 3500

1500

1520

1540

1560

VlyCreek_MM I Plan: Corrected Effective VlyCreek Pl an 5/15/2014


Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground


MainStreetBr

idge

M

illStreetBr

idge

Dama

tLakeSwitz

erlan

d

Con

fluen

cewithBus

hkill

4aand4b.FloodplainEnhancementatVly nearConfluence


14/50


0 100 200 300 400 500 600 700 8001500

1505

1510

1515

1520

1525

1530

VlyCreek_MMI Plan: Corrected Effective VlyCreek Plan 5/15/2014

VLY_03X

Station (ft)

Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground

Ineff

Bank Sta

.06 .045 .08 .045 .06

Emory Brook



15/50




16/50


4a.FloodplainEnhancementatVly nearConfluence

Currentdepths


17/50


4a.FloodplainEnhancementatVly nearConfluence

Depthsafter

floodplain

project


18/50


4a.FloodplainEnhancementatConfluence

Comparisonof

inundated

areas

Motel100yr

WSEchanges

from1520.8

to

1517.9andit

partlyleaves

theSFHA

School100yr

WSEchanges

from1515.2to

1513.4


19/50


4b.LargerFloodplainEnhancementatConfluence

Depthsafter

floodplain

project


20/50


4b.LargerFloodplainEnhancementatVly nearConfluence

Comparisonof

inundated

areas


21/50

16000 18000 20000 22000 24000

1440

1460

1480

1500

BushKill _MM I Plan: Existing Conditions Bushkill 5/15/2014


Elevation(

ft)

Legend

WS Q500

WS Q100

WS Q50

WS Q25

WS Q10

Ground


Route

28Bri

dge

Dep

otStreet

Bri

dgeS

treetConstriction

6aand6b.FloodplainEnhancementnearDepotStreet


22/50


0 100 200 300 400 500 600 7001460

1465

1470

1475

1480

1485

BushKill _MMI Plan: Existing Conditions Bushkil l 5/15/2014BUS_37X

Station (ft)

Elevation(

ft)

Legend

WS Q500

WS Q100

WS Q50

WS Q25

WS Q10

Ground

Ineff

Bank Sta

.055 .045 .04 .0

55

Warehouses



23/50

0 100 200 300 400 500 600 700 8001470

1475

1480

1485

1490

1495

BushKil l_MMI Plan: Existing Conditions Bushkill 5/15/2014BUS 39: DEPOT STREET

Station (ft)

Elevatio

n(

ft)

Legend

WS Q500

WS Q100

WS Q50

WS Q25

WS Q10

Ground

Ineff

Bank Sta

.08 .035 .055

House




24/50




25/50


6a.FloodplainEnhancementatDepotStreet

Currentdepths


26/50



Depthsafter

floodplain

project


27/50



Comparisonof

inundatedareas


28/50


6b.LargerFloodplainEnhancementatDepotStreet

Currentdepths


29/50



Depthsafter

floodplainproject


30/50



Comparisonof

inundatedareas

Homesatthe

westendof

Wagner

see

a

100yrWSE

reductionfrom

1487.2to

1483.8


31/50


7a.FloodplainEnhancementatOldRoute28


32/50



Currentdepths


33/50



Depthsafter

floodplainproject


34/50


7a.FloodplainEnhancementatOldRoute28+BigRedKill

Current

inundationarea


35/50



Currentdepths


36/50



Depthsafter

floodplainproject

SelfStorage

100yrWSE

changesfrom

1473.4to

1472.5

Atnearby

homes,WSE

changesfrom

1458.0to

1457.0


37/50


7b.ExtensiveFloodplainEnhancementatOldRoute28


38/50



Currentdepths


39/50



Depthsafter

floodplainproject


40/50


8.FloodplainEnhancementatMillStreet

Needstobe

combinedwith

other

alternatives


41/50


Reminder:

4a.

Floodplain

Enhancement

at

Vly

Depthsafter

floodplainproject


42/50


43/50


8b+1d+4a

Comparisonof

inundated

areas

Motel100yr

WSEchanges

from1520.8to

1517.1and

it

partlyleaves

theSFHA

School100yr

WSEchanges

from1515.2to

1513.4

l f d l


44/50

0 1000 2000 3000 4000

1500

1510

1520

1530

1540

1550

EB_Project_MM I Plan: Duplicate Effective Emory 5/15/2014


Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground


WagnerStreetBri

dge

MainStreetBri

dge

Con

fluen

cewithBus

hkill

9.EmoryBrookfloodplain

R i R l f M d li


45/50


CrossSection1068 WagnerAvenueBridge PartofFloodplainisusedbyVlyCreekFloodwater

0 50 100 150 2001505

1510

1515

1520

1525

EB_Project_MMI Plan: Dupli cate Effective Emory 5/15/2014EMO 04: Wagner Avenue

Station (ft)

Elevation(

ft)

Legend

WS 500 YR

WS 100 YR

WS 50 YR

WS 25 YR

WS 10 YR

Ground

Ineff

Bank Sta

.06 .04 .06

R i R lt f M d li


46/50


9.EmoryBrookfloodplain

9aloneisnot

effective

due

tobackwater

atWagnerRd

bridge

1breplacesthe

WagnerRd

bridge

4bistheVly

floodplainwe

discussed

earlier

R i R lt f M d li


47/50


9.Emory

Brook

floodplain

Currentdepths

9aloneisnot

effectivedue

tobackwater

atWagnerRd

bridge

1breplacesthe

WagnerRd

bridge

4bis

the

Vly

floodplainwe

discussed

earlier

R i R lt f M d li


48/50


9.Emory

Brook

floodplain

Depthsafter

floodplain

project

Citgo100yr

WSEchanges

from1520.8to

1518.9and

it

appearsto

shiftoutofthe

SFHA,although

floodingfrom

Vly maystill

affectit

Review Results of Modeling


49/50


LittleRed

Kill

Next Steps


50/50

NextSteps

Refinehydraulicalternativesthathavemerit

Evaluatehydrologicalternatives

Preliminarybenefitcostanalysis

Meettoreviewresults

Documents

Fleischmanns LFA Meeting 11-18-14 for Village