Bee Branch Watershed Application Executive Summary
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Bee Branch Watershed Flood Mitigation Project
Executive Summary
Imagine: you and your family are waiting out a tornado warning in the safety of your basement when suddenly
heavy rains produce flash flooding and floodwaters start pouring in around you. Your choice: do you stay in your
flooding basement or go upstairs and risk the tornado? Unfortunately, Bee Branch Watershed residents have
been faced with this dire situation repeatedly.
The Bee Branch Watershed, which includes Dubuque’s most developed areas where over 50% of Dubuque’s
residents either live or work, is continually hit hard with flash flooding – and it’s NOT just a little water in the
basement. It’s flooding that inundates water heaters, furnaces, and electrical boxes; it rushes down streets
from curb to curb ‐‐ stalling vehicles, stranding motorists, blowing sewer covers, and ripping up pavement. Six
Presidential Disasters directly impacting the watershed have been issued between 1999 and 2011 due to flash
flooding, with estimated damages of $69.8 million.
The Bee Branch Watershed encompasses historic neighborhoods offering some of the community’s most
affordable workforce housing. Most residents are working families, many are elderly ‐‐ those least able to
recover from repetitive flood loss. For over a decade, businesses and homes have suffered losses from water
damage and disinvestment. From 2004 to 2009, commercial property values grew by 39% citywide – but fell by
6% in the flood prone area.
In response, the City has engaged consultants, state and federal partners, citizen advisory committees, and the
general public to help create, fund, and implement a watershed plan to address the flooding. The plan outlines
improvements throughout the Bee Branch Watershed, improvements that will benefit upstream as well as
downstream properties, a plan consistent with both the Dubuque County Multi‐Jurisdictional Hazard Mitigation
Plan and the Dubuque County Comprehensive Emergency Management Plan.
The Bee Branch Watershed Flood Mitigation Project is a multi‐phased, fiscally responsible investment. It reflects
a holistic approach to mitigate flooding as it will also improve water quality, stimulate investment, and enhance
the quality of life. Having secured the necessary federal and state funding approvals, permits, and funding,
Dubuque has pushed forward with planning, execution, and completion of three phases and the initiation of two
more. The phases of the Bee Branch Watershed Flood Mitigation Project are as follows:
Phase Description Status
1 Carter Road Detention Basin Complete
2 West 32nd Street Detention Basin Complete
3 Historic Millwork District Complete
4 Lower Bee Branch Creek Restoration Under Construction
5 Flood Mitigation Gate Replacement Under Design
6 Impervious Surface Reduction Under Construction
7 Upper Bee Branch Creek Restoration Under Design
8 22nd Street Storm Sewer Improvements Under Design
9 Flood Mitigation Maintenance Facility Under Design
10 North End Storm Sewer Improvements Under Design
11 Water Plant Flood Protection Under Design
12 17th Street Storm Sewer Improvements Under Design
Bee Branch Watershed Flood Mitigation Project ‐ Executive Summary
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Individually, the 12 phases of the project may provide some benefit. But flash flooding can be expected to occur
until all of the improvements are implemented. But it is also true that with the completion of each subsequent
phase, the threat of flash flood damage is lessened and the resulting damage will be mitigated.
Because of the public support for the Bee Branch Watershed Flood Mitigation Project, the stated commitment of
the City of Dubuque City Council to implement the various phases of the project, and because the City has already
started implementing some of the improvements, non‐public investment in the Bee Branch Watershed has
already eclipsed $139 million since 2008 with an additional $215 million expected to follow in the next five
years for a combined total of $354 million in non‐public investment.
Implementation of the complete Bee Branch Watershed Flood Mitigation Project is
possible only with the requested Sales Tax Increment funding.
The City of Dubuque has been fortunate to secure local, state, and federal financial assistance to the extent that
the Bee Branch Watershed Flood Mitigation Project is eligible for funding through the State Flood Mitigation
Program. The total commitment in the combination of local and federal funding will provide for 51% of the total
project cost. The City has secured more than the requisite $30 million in federal financial assistance, with $49
million in financial assistance through the federal Clean Water Act and $1.2 million U.S. Economic Development
Administration disaster relief grant, which is a federal program providing assistance specifically for hazard
mitigation. And yet, even with the existing outside financial assistance, the cost of implementing all phases of the
flood mitigation project is too steep for Dubuque citizens and businesses.
Of the more than 30 stormwater utilities across Iowa, Dubuque residents currently pay the second highest rate in
the state. And even with the requested Sales Tax increment, a rate increase is necessary. But to construct the Bee
Branch Watershed Flood Mitigation Project without the requested Sales Tax Increment, the rate would need to
be increased by 248% which would significantly burden Dubuque businesses.
The City of Dubuque has carefully developed a fiscally conservative funding plan for the multi‐phased project. The
City is requesting less than $7 million in sales tax increment in any given year, with an average annual request
of less than $5 million. The requested $98 million in Sales Tax Increment over 20 years is less than 59% of the
City’s projected 70% increment.
State Flood Mitigation Board approval of the City of Dubuque’s Project by December 31, 2013 is critical. Timely
approval will benefit the lives of thousands of watershed residents, businesses and employees, as well as halt the
disinvestment occurring in the watershed. If approval is delayed until 2014, however, the projected sales tax
increment would be negatively impacted and the City may need to adjust the timing of project phases.
The Bee Branch Watershed Flood Mitigation Project will prevent an estimated $582
million in damages over the 100‐year design life of the project, with a return on
investment for the State of Iowa of $6.00 for each $1.00 spent!