Storm water is the result of rainfall that does not soak into the ground and flows into surface waterways or storm sewers. Stormwater is a concern to the City of Paducah and has to be controlled from a quantity and quality standpoint. Construction activities and increased impervious surfaces associated with new development and expansion of existing sites can lead to increased stormwater runoff and pollution.
In this Paducah View episode (6:09 minutes), City of Paducah Storm Water and Drainage Engineer Eric Hickman discusses storm water management and how the public can help maintain flow into the system.
Following some of the City’s most recent record storm events, residents are encouraged to share their firsthand accounts of flooding on their property and surrounding areas. Residents are encouraged to provide as much information as possible about each event in which flooding was noted. Photos showing the extent of flooding accompanied with the date of the rain event and the address or location of the property will be extremely useful.
Photos, the questionnaire, and firsthand accounts can be shared electronically through email to Storm Water & Drainage Engineer Eric Hickman.
Presentation to Paducah Board of Commissioners regarding Problem Area Identification (December 12, 2017): Principal-In-Charge/Senior Planning Advisor John Lyons and Project Manager Michael Woolum with Strand Associates provided an update on the work completed by Strand in partnership with the City of Paducah and BFW Engineering & Testing on the Comprehensive Storm Water Master Plan. The master plan development is on schedule. The agreement with Strand for this plan was adopted by the City Commission in March of this year. Woolum emphasized that developing a Comprehensive Storm Water Master Plan is challenging for Paducah due to several factors including several watersheds, the Ohio River and river flood influences, the floodwall and pump stations, flat topography in the City with steeper topography outside the City limits, and a complicated combined sewer system.
Over the past few months, Strand has been using a variety of data sources and information submitted by citizens electronically and from the two Public Meetings held in July and November to create an existing conditions baseline model of the Paducah area. Extensive public outreach was initiated in order to gather the vital data including the two public meetings, online survey and email access, news releases, social media posts, and 700 flyers.
The baseline model is a critical piece of this project since the model will be used to evaluate a range of flood mitigation alternatives and costs. The baseline model was calibrated using the flood information from the July 7, 2015 storm event to replicate how rainfall affects this area. Woolum says the 2015 storm was a 100-year storm event.
In reviewing the data, Strand has identified 23 problem areas in Paducah. Using the baseline model and a 10-year storm event, 75 structures would flood. For a 25-year flood event, 208 structures would experience flooding. For the July 7, 2015 event, 416 structures experienced flooding.
Woolum then pointed out specific information on some of the problem areas. One example is the three adjacent problem areas at 25th at Park Avenue, 23rd at Clay Street, and Harrison and Madison at 24th Street. For a 10-year storm event, a total of 37 structures would experience flooding. As a comparison during the 2015 event, 133 structures experienced flooding. Another example problem area is along Buckner Lane. For a 10-year storm event, a total of 6 structures would experience flooding. As a comparison during the 2015 event, 32 structures experienced flooding.
The next step in this phase of the Master Plan process involves reviewing the 23 problem areas and establishing ten priority areas for evaluation. The selection criteria to narrow the focus to ten priority areas will use information such as the number and concentration of structures flooded, property damage complaints, public safety concerns, flood frequency, problem area interdependency, and complexity. Strand will then evaluate flood mitigation control options and prepare preliminary cost estimates for the ten priority areas. This process also will lead to a discussion of the concept of “level of service.” Lyons explained that the level of service is determined by the type of storm or storm frequency around which we want to design flood controls. Since it is not an option financially for a city to be able to prevent all flooding during a major storm event such as what Paducah experienced in July 2015, the City must work with the community to determine the appropriate level of service.
The final discussion involved the second phase of the master planning process. The scope of services in the second phase will be presented as a contract with Strand at an upcoming Commission meeting. The second phase focuses on determining costs to implement a Storm Water Management Program including an operation and maintenance budget, a budget for capital improvement projects, staffing, and equipment needs. This also would include the development of a Storm Water Utility and the development of a funding mechanism using an Equivalent Residential Unit (ERU) which is based on the impervious area of parcels. If the second phase contract is approved, it would involve a public outreach program to gather input about a Storm Water Utility and educate the public on the structure of a funding mechanism.
Public Meeting No. 2 (November 13, 2017): Paducah residents and those who live near the city limits were invited to attend Public Meeting No.2 to support the completion of a Comprehensive Storm Water Master Plan for the City of Paducah. The meeting was held Monday, November 13 from 4 until 7:30 p.m. at the Robert Cherry Civic Center located at 2701 Park Avenue. The City’s consultant team made a brief presentation about the study progress at 5:45 p.m.
The City’s consultant for this planning initiative talked with residents and property owners regarding storm water flooding issues that have recently affected homes and businesses throughout the community. Residents viewed maps and digital imagery showing the extents of flooding from a significant rainfall event. Residents were asked to review the “draft” flood maps that have been developed to replicate the community flooding that occurred from the July 7, 2015 storm event. Since the map reflects modeling efforts underway to recreate Paducah’s natural and manmade infrastructure including storm and combined sewer systems, topography, drainage basins, and river systems, residents are encouraged to provide feedback on the map’s accuracy.
At the meeting, terminals were set up so that residents could provide information directly to the engineers and technical consultants who are actively studying Paducah’s flood prone areas. The information assisted the engineers in further refining the scope and extent of flood areas.
Once the existing conditions baseline model is completed, the team will evaluate a range of flood mitigation alternatives and costs. A recommended plan and priorities will be presented in the future. The City of Paducah will be evaluating funding mechanisms to implement drainage improvement projects in addition to water quality protection, operations and maintenance, and rehabilitation of aging storm sewer infrastructure.
Public Meeting No. 1 (June 19, 2017): Paducah and McCracken County residents were invited to attend Public Meeting No.1 to support the completion of a Comprehensive Storm Water Master Plan for the City of Paducah. The meeting was held June 19, 2017 from 5 until 7:30 p.m. at the Robert Cherry Civic Center located at 2701 Park Avenue. The City’s recently hired consultant for this planning initiative talked with residents and property owners regarding storm water flooding issues that have recently affected homes and businesses throughout areas of the community. The consultant team made a brief presentation to the public to provide additional background on the study process at 5:45 p.m. Residents were able attend the meeting anytime between 5 and 7:30 p.m. Following some of the City’s most recent record storm events, residents were encouraged to share their firsthand accounts of flooding on their property and surrounding areas. At the meeting, terminals were set up so that residents could provide information directly to the engineers and technical consultants who are actively studying Paducah’s drainage basins, topography, and flood prone areas. Approximately 65 Paducah and McCracken County residents attended this meeting.
Agreement with Strand Associates, Inc. for Comprehensive Storm Water Master Plan (February - March 2017): At its March 14, 2017 meeting, the Paducah Board of Commissioners approved an ordinance to execute an Agreement for Technical Services with Strand Associates, Inc. in an amount not to exceed $790,000 for professional engineering, consulting, and related services for the development of a comprehensive storm water master plan (CSMP). Strand is partnering with the local firm, BFW Engineering & Testing, Inc. The CSMP will provide the City of Paducah the identification of ten priority flood areas, the analysis of flood mitigation alternatives, a prioritized ranking of projects along with a benefit cost analysis, and the development of a capital project program. The CSMP process has an anticipated completion date by the end of 2018. The previous storm water study was completed in 1989 and looked at only five flood-prone areas.
From May 20 until June 17, 2016, the City of Paducah solicited a request for qualifications from experienced consulting engineering firms for the development of a CSMP. Six firms submitted their qualifications. A selection committee comprised of City Engineer & Public Works Director Rick Murphy, Storm Water & Drainage Engineer Eric Hickman, Joint Sewer Agency Executive Director John Hodges, and Paducah Economic Development President/CEO Scott Darnell reviewed and scored each submission. Firms were given the opportunity to make a presentation to the selection committee with three firms making presentations on August 4. After the review and presentation process, the selection committee unanimously recommends Strand Associates, Inc. Strand has been in existence since 1946. It has 380 employees and 11 offices including two in Kentucky. Strand has extensive experience in community and storm water modelling and master planning.
Principal-In-Charge/Senior Planning Advisor John Lyons and Project Manager Michael Woolum with Strand Associates in addition to Assistant Project Manager Kenny McDaniel with BFW made a presentation about the project at the February 28 City Commission meeting. Woolum said that Strand is committed to determining meaningful improvements to the flooding problems that the Paducah community is facing. Over the past few months, Strand has been researching the Paducah area to understand the areas of existing flooding, rainfall data, existing storm water conveyance systems (both natural and manmade), and topography.
To create an effective CSMP, Strand will study several factors unique to the Paducah area including the characteristics of the local watersheds and the potential for future growth. Computer models will be calibrated based on actual events with a design around specific storms and rainfall rates. The CSMP will recommend the appropriate level of flood control and cost-effective solutions. Strand proposes to have public meetings throughout the process to provide citizen outreach and to manage the public’s expectations through education. Lyons said, “This project/program is not intended to eliminate flooding. This is about risk management.” Lyons said the project team will be working with the City and other partners to determine the appropriate level of service in managing the storm water. That will lead to the development of feasible, cost-effective solutions. Lyons added that you have to understand what you have today regarding existing storm water conveyance systems and then look at how to optimize their function.
Comprehensive Stormwater Master Plan Request for Qualifications (Deadline was June 17, 2016): From May 20 until June 17, 2016, the City of Paducah solicited a request for qualifications from experienced consulting engineering firms for the development of a Comprehensive Stormwater Master Plan (CSMP). The overall objective of this project is to compile a document which provides clear and concise explanation of the City’s existing stormwater management program, presents a detailed investigation into key components of stormwater as it is related to the City, establishes stormwater management goals for the future, presents tools to meet or exceed established goals and provides a foundation for future policy decisions.
Storm Water System Plan Proposal (February 16, 2016): City Engineer & Public Works Director Rick Murphy made a presentation to the Paducah Board of Commissioners about the City’s existing storm water system and its limitations, the need for an updated storm water master plan, and an overview of possible funding structures. Murphy explained that the majority of the drainage problems in the City originate from the natural geography of the City since Paducah is located on the Ohio River’s floodplain. He adds that nearly 204,000 square miles of land drain to Paducah. Paducah has 110 miles of storm sewer and 69 miles of combined sewer. Much of the city’s development occurred at a time when storm water management was not a priority and the current development ordinances were not in place. Therefore, Murphy says the current storm water system is aging and over capacity and needs to be upgraded and/or replaced. The majority of the storm sewers are 60 to 100 years old. The City provides approximately $60,000 each year to fund storm water management which Murphy says is insufficient. Murphy recommends the development of a holistic storm water master plan. The most recent study was completed in 1989 and looked at only five flood-prone areas. A storm water master plan would study and model the existing storm water management system in detail, establish project goals, and prioritize projects. The master plan also would look at possible ways to fund system upgrades. Murphy outlined the possibility of creating a Storm Water Utility. Most storm water utilities use the Equivalent Residential Unit (ERU) as their method of funding. Using the ERU method, a property would be charged a monthly storm water fee based on its contribution to storm water runoff which is directly related to the amount of impervious surface on a property. Murphy showed a chart listing ten Kentucky communities that have a monthly fee ranging from $1.50 to more than $7.00 to fund their storm water utilities. The average is $3.60 per month for residential properties. Nationally, there are 1491 storm water utilities with a median storm water utility fee of $3.50 per month. City Manager Jeff Pederson says this is basically a proposal to create a storm water utility, a new division of the Engineering-Public Works Department, with a dedicated source of revenue. Pederson recommends moving forward with the development of a request for proposals (RFP) to solicit interest from companies that would be able to develop a storm water master plan for the City of Paducah which would provide guidance on drainage projects and funding. The Board of Commissioners voiced their support in moving forward with the RFP.