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Updated Bee Branch Watershed Flood Mitigation Project Public Information Brochure Copyrighted August 5, 2019 City of Dubuque Action Items # 7. ITEM TITLE: Updated Bee Branch Watershed Flood Mitigation Project Brochure SUM MARY: City Manager providing a copy of the updated Bee Branch Watershed Flood Mitigation Project public information brochure. SUGGESTED DISPOSITION: Suggested Disposition: Receive and File ATTACHMENTS: Description Type Updated Bee Branch Watershed Flood Mitigation Supporting Documentation Project Brochure 1: � i , 4ry'�'-pm�*^I � ; 1 i I ' .l' � �� `' I i t ��y-• 'r `4 p�� ..<�+�I^N'° ' �� . , '�iy ��:,{,C A.�-- _ nro Sa �.�•,�.. � ry, „�[ ` r� ;.��,L �'i �la�a-. .i' � , ' � / Q -� � � �.:. p ., ' K $ kS' } � 0 � �� 'f. i . - y�� J�f�j ��n d � ,i'9' r' _ 4�i .. � �, - � \�� - " A i�.itl C f i i� ��.�l��jti��'yj�Y _.: :r � .�ah/� �! . h�:Iai 1//:�t t _' :f'd'.A'j�.di •.v.�... � e�!'J��e��st't .f ._ . .. .. . .�i.�vF�_�i. . . , __�-i l . . . .. -�A_� � . A multi-phased, fiscally responsible investment to mitigate flooding, improve water quality, stimulate investment, and enhance quality of life within the Bee Branch Watershed. , � � � � The Bee Branch Watershed is the area hit hardest by flash flooding during significant rain � , events with much more than "just a little water in the basement."Too frequently, it is flooding that inundates water heaters,furnaces, and electrical boxes, and can cause fires. , - - � It rushes down streets from curb to curb --stalling vehicles, stranding motorists, displacing �� , � manhole covers, and damaging pavement,water mains, and stormwater and sanitary "• sewers.The Bee Branch Watershed Flood Mitigation Project is a multi-faceted approach to addressing the severe and frequent flash flooding experienced in the watershed. , � • '� i i , ii � i i i i , ii • , i ii iii � , i ii � i • i , �. , - , i i i li i • i , • i • i i • i i i � I � M , � i i i i , ii i • • i i i • i Flood disasters have repeatedly impacted residents and employees of the businesses within "�r��y the watershed. Between 1999 and 2011, six Presidential Disaster Declarations were issued with total damage estimates of almost$10 million. The flooding in the Bee Branch Watershed also has had a major impact on public infrastructure and City services both within and outside the flood-impacted area. Direct public ��.� sector costs include emergency response activities, street and utility infrastructure repairs, �_-�- � � and debris clean-up and removal. The disruption of essential City services and street closures ` � - due to flooding and damage also has a negative economic impact on the entire community. � - J.r s Based on a 2009 Federal Emergency Management Agency(FEMA)study, 1,313 homes and � ?i�� businesses in the watershed are prone to flooding, including 10 businesses that employ over t 7 1,400 people and have over$500 million in annual sales. TH8 CTTY OP The Bee Branch Watershed Flood Mitigation Construction Project will prevent an estimated T1T TB E $582 million in damages over the 100-year design life of the project and create an incentive L V for individuals and businesses to reinvest in this vital area of our community. Masterqiece on the Mississippi / � � � • • The combined infrastructure improvements will reduce the volume of stormwater, slow the � � � rate of stormwater through the upper watershed, increase the safe conveyance of stormwater through the flood-prone area, and provide floodwater protection to the City's water treatment plant on Hawthorne St. ;�� Carter Rd. and W. 32nd St. Detention Basins - Complete � �*� � ,�"',� `�� ''�'' The Carter Road Detention Basin,completed in 2004, is an earthen dam approximately 350-feet long by 40-feet �-__._ . .- -_ -. high. It can hold 59.3 million gallons of stormwater runoff and is designed to reduce peak flow of runoff during a � 100-year rain event by 98 percent.The storage capacity of the W.32nd Street Detention Basin,completed in 2009, � was more than doubled from 15 million gallons to 32 million gallons of water. Located in upper watershed,the � " b�,.;� basins hold back stormwater and release it slowly downstream allowing more time for the lower,flat areas to drain. � ��'�. ; Bee Branch Creek Restoration - Complete ` ,;�. � ��. x �; .-`� s� :,--,-�1 The Bee Branch Creek Restoration involved replacing almost one-mile of storm sewer with a creek and green L. •�- �� -� space that resembles the one that traversed the area approximately 100 years ago.This"day-lighting"of the ��`'�;"'� ��` �� buried Bee Branch Creek allows stormwater from flash floods to safely move through the area without flooding �� '�� ! adjacent properties. It is split into two distinct sections:the Lower Bee Branch,completed in 2011,and the Upper � �� - Bee Branch,completed in 2017. ��: �'� � Bee Branch Railroad Culverts - Under Construction 2019 - 2021 _ 2 �� The Bee Branch Creek Railroad Culverts project which involves the placement of six 8-foot diameter pipes under �__ �� the Canadian Pacific railroad yard is scheduled for completion in 2021.The pipes will allow stormwater to drain ' ��-" �� ` M �` more efficiently from the Upper Bee Branch Creek to the existing Lower Bee Branch Creek and 16th Street . '� -—` -- �! Detention Basin. -� _ __ -- � � �� , � �� '`° ��'�•� Storm Sewer Improvements - Planned for 2017 - 2029 To help prevent the effects of flash flooding as witnessed in the past,storm sewer capacity improvements are being ��;�:�: ��''. ; � made at several locations within the watershed. In 2017 and 2018,to safely convey stormwater from the W. Locust \\��.��"�` �;.�- . Sub-Watershed to the restored Lower Bee Branch Creek,a new storm sewer was installed along 17th St.from ��" A� ��A ar�� Elm St.to Heeb St. Future plans include extending the improvements from Heeb St. up to W. Locust St.To convey �� `�'��'Y � stormwater from Kaufmann Ave.to the restored Upper Bee Branch Creek,a new storm sewer is being installed along `' , �'`, , / x=el, , 22nd St.from Elm St.west across Central Ave.continuing up Kaufmann Ave.to west of Francis St. Lastly,the north ' �`R ' , � � s end storm sewers between White St.and Elm St.from 25th St.to 30th St.will be expanded up to ten times their �,��`'�� ° ;�`� current capacity.The north end storm sewer project is planned for 2029. �!<.�''�� A��', :# �: _� —�— ...�. Bee Branch Healthy Homes Resiliency Program - Planned for 2016 - 2021 In 2016,the U.S. Department of Housing and Urban Development(HUD)awarded the City of Dubuque$8.4 million � \` in Disaster Resilienc Funds to assist Bee Branch Watershed homeowners in re airin and flood- roofin their ' �� - -�: ` Y p g p g ;_;; � ,,f homes.The grant funds will help with home maintenance and renovations to decrease environmental health and - I safety issues from flooding such as dampness and mold growth,electrical hazards,and structural issues.The program includes the rehabilitation of housing units, including owner-occupied homes,single-unit rentals,and -� small, multi-family residential units. I1 � b. .ii� � " � �� T Impervious Surface Reduction (Green Alleys) - Planned for 2029 - 2040 , � �� Green alley reconstruction focuses on reducing the volume of stormwater in the watershed. Green alleys ` feature permeable pavement which allows water to pass through the surface and filter gradually into the soil : .,:� '�:� below. Over the course of the project,approximately 240 alleys in the watershed will be converted into green " ` alleys. Seventy-three alleys were completed between 2014 and 2017.The remaining alleys are scheduled to be reconstructed between 2029 and 2040.This conversion is expected to reduce stormwater runoff within the ��i�'i', � ��.,'��'�� .. :. Bee Branch Watershed by up to 80 percent. 1 . I I ' The Bee Branch Watershed Flood Mitigation Project is fully funded from lowa Flood multiple sources including financial assistance from the State of lowa Mltl ation Pro ram and Federal government, private donations, debt, and funds allocated g g from the local Stormwater Utility. Authorized underthe Flood Mitigation Bill in 2012, the Flood Mitigation Program is administered by The City of Dubuque has received$162.6 million in grants to help fund the$232 million project. the lowa Department of Homeland Security on a In 2016,the U.S. Department of Housing and Urban Development(HUD)awarded the competitive basis by a citizen board.In December City of Dubuque$23.1 million in Disaster Resiliency Funds for stormwater infrastructure 2013,the project was awarded improvements including the W. Locust St.and Kaufmann Ave.storm sewer projects and the 98.5 M i I I i o n Bee Branch Creek Railroad Culverts. � in the form of state sales tax increment financing The City is participating in multiple state funding programs.Through the State Revolving Fund spread over 20 years. (SRF)program,the lowa Environmental Commission authorized the City to reallocate$9.4 million that was to be paid in interest on the loan associated with the Water and Resource What is sales tax Recovery Center upgrade project to instead be used to construct more than 70 g reen alleys i n c re me nt fi n a n c i ng? in the Bee Branch Watershed. Also through SRF,the lowa Finance Authority authorized the Each year the total amount of state sales tax City to reallocate$1.4 million that was to be paid in interest on the loan associated with the charged on goods and services purchased in Upper Bee Branch Creek Restoration to make improvements in the Catfish Creek Watershed Dubuque is projected to increase.This increase to protect the water quality of the Catfish Creek and prevent soil erosion. is called the "sales tax increment". From 2013 to 2033, up to 70 percent of this sales tax increment will be distributed to the City of Dubuque to In December 2013,the project was awarded$98.5 million from the lowa Flood Mitigation help fund the Bee Branch Watershed Flood Board in the form of state sales tax increment financing*spread over 20 years.This is the Mitigation Project.This means a percentage of largest amount ever awarded to the City of Dubuque and will enable the City to issue debt to Dubuque's retail sales tax is being invested back implement the comprehensive flood mitigation plan much sooner than previously anticipated at in our community to make local infrastructure a lower cost to Dubuque citizens and businesses.Additional grant funding is being explored. improvements and enhance quality of life within the watershed. � � � , i � . � -- = ■� • � Carter Road Detention Basin Completed in 2003 $1,076,315 r West 32nd Street Detention Basin Completed in 2009 $4,158,589 '� ' � Lower Bee Branch Creek Restoration Completed in 2011 $21,274,685 �. � . � �`�{ �Y��=.. � -��,�+� Historic Millwork District Complete Streets Completed in 2012 $7,977,311 .- r � � � ...,� ` ........1...�--��-��•��- r'�*� ;� �.:.. Upper Bee Branch Creek Restoration Completed in 2017 $60,203,636 . . �.-��, Is �� . .. �4�. . _ .� ��`..�� , �' ,� Bee Branch Creek Railroad Culverts Est.Completion-2021 $31,185,349 7pi�� * ��' �� 22nd StJKaufmann Ave. Storm Sewer Improvements Est.Completion-2021 $8,827,660 �" �� , Bee Branch Healthy Homes Resiliency Program Est.Completion-2021 $8,427,665 � �� (Assistance to over 300 homes in the Bee Branch Watershed) � � \� ' '�' Flood Mitigation Gate&Pump Station Replacement Est.Completion-2021 $10,325,000 � ' Flood Mitigation Maintenance Facility Est.Completion-2028 $4,660,000 , � _ �, . - .��,� � .., �� . � " 17th St./W. Locust St. Storm Sewer Improvements Est.Completion-2028 $10,703,244 .� '�` .. i � �; � � North End Storm Sewer Capacity Improvements Est.Completion-2029 $1,400,000 �`,��1 � x ,, � Water Plant Flood Protection Est.Completion-2031 $4,400,000 ,� ,�.:.•. , i;�� k � �` Impervious Surface Reduction(Green Alleys) Est.Completion-2040 $57,420,000 .�L �' - �{G• I� ��rR�`�.' �� ' �I f, .'I ' �� r.\ � ,,�,,;� .L r. �, � ,��;�✓_ � Total cost, excluding interest on debt: $232,810,454 �- , , ,�� : -:�'�� ;;, � '' � �� Total grants to date: $162,615,016 ; �` M: • .�. �s�F,% �► �,� `'" �� f � v� �. _<a' �r: � ��f��/711 � 1 ' � . I The Bee Branch Watershed Flood Mitigation Project has received the following awards: • Engineering Excellence Award for the W.32nd Street Detention Basin,American Society of Engineering Companies-2010 • Engineering Excellence Award for the Lower Bee Branch Creek,American Society of Engineering Companies-2013 • Outstanding Achievement,2017 City Livability Awards Program, U.S.Conference of Mayors-June 2017 • Best Public ImprovementAward for Design, Dubuque Mainstreet—September 2017 • 2017 Community SustainabilityAward, International City/County ManagementAssociation-August 2017 • 2017 Project of the Year, lowa Floodplain and Stormwater ManagementAssociation(IFSMA)-October 2017 • Excellence and Innovation in Clean Water Infrastructure,2017 PISCES Program, U.S. EPA-November 2017 • Excellence in Concrete, lowa Ready Mixed Concrete Association-November 2017 • 2017 Judge's Choice Best DevelopmentAward, 1000 Friends of lowa-January 2018 • 2017 Water Project of the Year,American Infrastructure Magazine-February 2018 • 2018 Eddy Award for Excellence on the River, Upper Bee Branch Creek, River Action-April 2018 • 2018 James Lee WittAward for Excellence in Floodplain Management,Association of State Floodplain Managers—June 2018 • 2018 Environmental Planning Award, Upper Bee Branch Creek, lowa Chapter of the American Planning Association—October 2018 • 2018 Project of the YearAward, lowa Chapter of the American Public Works Association—October 2018 • 2019 Grand Prize Award&Grand Conceptor Award, lowa Chapter of the American Council of Engineering Companies—May 2019 • 2019 National Recognition Award(Engineering Excellence),American Council of Engineering Companies—May 2019 W H AT I S A WAT E R S H E D r • Bee Branch Watershed -t � , � . • Bee Branch Creek Restoration � Project Area � , A watershed is an area of land that drains � City Limits � to the same place. The Bee Branch � Watershed drains to the Bee Branch Creek. ` , '. The Bee Branch Watershed is located � �� . entirely within the city limits of Dubuque � ; �;�;,{ and covers approximately 6.5 square miles � �.�= u�i�: � � `'.•'i • of Dubuque's total area of 29 square miles. �� 'i� � WATERSHED This watershed area includes the city's � �� A�j.._�L; ► -��,� most developed areas, where over 50% of � ^ �� _ ��t `'� .��;`�� Dubuque residents either live or work. — � — / �S � ��. �' ��i.� � i :��:. ...,. .;.. � � ( � v ��v `:'�:'� ' I � � � 'J��: ::`-� � _, 0. � ��. , ...;:�'��'�, �. :� �-- 1 _� � \`� �- � ,�=, � �'�;,e�,+" ,�"w� ..-- •�w... .p,y �� .. �.e.. ,� .f. .�. . ],��kHFY : .. R....e . • - . �� . .' - � ,� ., x-., -i-�1�'�yt' a!�5 �J�" �`�.� Y � � y�,:,��r.sG- �rr `� ��^� .,j�+Q' ,�L "� ��`�r.,1�'F��.xs�".r'*4o:�, n�e, �� ':., �^'�,�.�i�7'�,';�'T� ��-,. 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