World Park North Stormwater Master Plan and Detention Basin Design - This project involved preparing a stormwater master plan for a 120 Ac. commercial/industrial site for Duke Real Investments, Inc. in Butler County.
Springfield Township Storm Sewer Rehabilitation Project - Hamilton Co. Department of Public Works.
Eastgate Pavilion - 25 Ac. Retail Site in Clermont County - Prepared detention design for stormwater runoff from 225,000 S.F. building & 13 Ac. parking lot.
City of Cincinnati California Storm Drainage Improvements - Prepare plans & specifications for storm pipes, catch basins, and open channel work to relieve street and yard flooding in California neighborhood.
East End Flood Protection Study and Master Plan - This study and master plan was performed for the Economic Development Department of the City of Cincinnati, under the direction of the Stormwater Management Utility Division. This project is located within the boundaries of the City of Cincinnati in the southeastern portion of the City between the Little Miami River and the Ohio River. It consisted of studying a drainage basin consisting of 2,665 acres. The purpose of the study was to address and analyze the problems and potentials of flood protecting areas along the Ohio and Little Miami Rivers and to determine the feasibility and cost associated with site preparation necessary to attract commercial and industrial development.
This project was unique in that most of the study area adjacent to the Ohio and Little Miami Rivers fell within the floodway or floodway fringe as defined by the Federal Emergency Management Agency (FEMA). Because of this, special hydraulic restrictions had to be contended within developing appropriate hydrological and hydraulic models. Being within the FEMA defined floodway areas, all work had to be accomplished by utilizing the HEC-1 hydrological analysis and the HEC-2 hydraulic analysis for the development of the river hydraulics. As an end result the Master Plan provided for flood protecting an area from Delta Avenue to the confluents of the Little Miami River and along the Little Miami River north of Lunken Airport. This was accomplished through the use of earthen dikes for the flood protection from the river, and systems consisting of gravity flow, pump stations, stormwater detention basins, and a combination of pumping and storage within the flood protected areas.
In addition to the hydraulic and hydrology analysis, we had to deal extensively with the environment, historical and aesthetical concerns. In addition, the Master Plan provided a cost benefit analysis, relating the end acre cost to provide flood protection to the benefits derived in creating the commercial and industrial sites. The recommended improvements needed to provide the flood protection and development of the commercial/industrial property resulted in a cost estimate of $35 million dollars.
Congress Run/Cilley Creek Stormwater Master Plan - This project was a joint effort between the Hamilton County Sanitary Engineers office and the City of Cincinnati Stormwater Management Utility Division. The study was initiated as a result of damages that occurred, over a number of years, with significant rainfall events. The latest one was a severe rainfall that measured in excess of 5 inches in a time period of one hour and forty-five minutes. The drainage basin consisted of 2,675 acres and entailed studying the Millcreek, Congress Run Creek, and Cilley Creek streams.
Because the Millcreek and a portion of Congress Run Creek had been studied by the Corps of Engineers utilizing the hydrological method of HEC-1 and the hydraulics analysis method - HEC-2, we were required to utilize those methods in this master plan. In addition, we utilized the SCS TR55 method in the drainage basin tributary to Cilley Creek.
Our solution to the problem resulted in recommendation of improving existing channels, providing additional stormwater conduits, and enlarging area of considerable restriction on Congress Run Creek. Because of the extensive cost involved in making the improvements, we provided the City and Hamilton County with a prioritization of improvements, based upon engineering considerations and cost. In addition, we developed a plan for phased construction of the projects. The cost estimate of the recommended improvements for this project was $3,400,000.
Valleydale/Cilley Creek Drainage Basin Master Plan -This project involved the HEC-2 channel analysis and SCS method for determination of runoff for approximately 2675 acres culminating in a master plan for controlling storm drainage. This project overlapped through areas under the jurisdiction of the Hamilton County Sanitary Engineer's Office and the City of Cincinnati Stormwater Management Utility Division. FEMA regulated streams were involved within both jurisdiction; utilizing HEC-2 analysis for methodology. The total project based on current dollars is estimated at $3.4 million.
Cincinnati East End Flood Protection Study - This project evaluated the potential industrial property adjacent to Kellogg and Lunken Airport as well as property upstream on the Little Miami River. The proposed construction cost for the total development is some $15 million. Our involvement in the project included the preliminary design and cost estimates with considerable emphasis on the development of the hydrology and hydraulics. The HEC-2 program was utilized to determine the flood water effect due to changes in the overland flow of the secondary riverbank as well as some minor main channel modifications.
Cincinnati California Storm Water Management Study and Report - This report involved the field and office analysis to determine the requirements for an adequate drainage system in the area. The total estimated project cost is approximately $1 million dollars. Not constructed.
Neighborhood Housing Conservancy - Kipling Detention Basin - City of Cincinnati - Prepared the preliminary engineering report with related information and submitted to the Ohio Department of Natural Resources for the proposed dam classification. Hydraulic analysis of the 56 acre watershed involved the SCS TR-55 methodology.
After approval of the preliminary engineering report, final construction drawings were prepared. Design was based on limiting post developed flow for the 2, 5, 10, 25, 50, and 100 year rainfall frequencies to pre-developed conditions.
Evendale Regional Detention Basin - This project involves the development of hydrology and hydraulics for retention basins to accommodate the differential between a design frequency of 25 years for undeveloped vs. a 50-year frequency for a completely developed urban area. The magnitude of the project involved approximately 1/3 of Evendale and resulted in 3 retention basins with a total construction cost estimated at $200,000.
Carpenter's Creek (plus) Drainage Area - This project involved the hydrological analysis and hydraulic design for the flood routing through 2 reservoirs utilizing the SCS method. This was the review of an existing facility to determine its adequacy.
Evendale Industrial Park Study - This study involved approximately 100 acres of property located in the flood fringe area adjacent to the Mill Creek in Evendale. The study resulted in proposed levies and detention basins plus pumping stations to protect the proposed industrial area against a 100-year frequency design as determined by FEMA. The price for the proposed improvement is $5 million.
Village of Evendale - Turgot Creek Hydraulic Analysis- Study to analyze effects of development from six (6) subdivisions, including existing detention/retention basins for a 300+ acre watershed. Study involves utilization of SCS TR-55 methodology. Study will recommend proposed improvements to minimize erosion through the Turgot Creek.
Village of Evendale - Woodleigh Lane Channel Analysis - Study of a channel utilizing WSP-2 backwater curve analysis program for calculating the water surface profiles. Study to recommend channel improvements necessary to minimize flooding.
Mees Distributors HEC-2 Analysis - City of Cincinnati - Prepared a HEC-2 hydraulic analysis along the West Fork Creek showing the effects the proposed warehouse addition has on the adjacent creek floodway.
Queen City Marina HEC-2 Analysis Review - City of Cincinnati -Review HEC-2 analysis for the Ohio River marina to assure compliance with the FEMA rules and regulations.
Winding Creek Subdivision HEC-2 analysis Review - City of Mason - Review of HEC-2 analysis for a proposed subdivision located within a FEMA "A" Zone. Review led the developer's engineer through the appropriate steps in order to show effects of the development on the creeks water surface elevations and to submit a report suitable for FEMA's reviewing agency.
Paul Hemmer Construction - Mason Business Center -Mason, Ohio - Detention basin designed as a part of the proposed 100-acre industrial subdivision. Site includes approximately 100 off-site acres. Total watershed approximately 200 acres. Study involved utilization of SCS, TR-55 methodology. The detention basin outlet control structure was designed for three different stages of release, each stage controlling different rainfall frequencies.
Winton Creek Analysis - This project was a hydraulic analysis utilizing the HEC-2 Program for the Chelsea Moore Company to determine the required facility to provide access to property over a channel under the jurisdiction of FEMA. The cost for the hydraulic structure was $464,000.
Tri-Way Industrial Park Subdivision - City of Mason - Performed extensive review and analysis for the City of Mason to recommend proposed improvements the developer needed to do to comply with the current City regulations. Subdivision watershed was approximately 100 acres, going to two (2) separate detention basins. Methodology used was rational method. Analysis involved routing various frequencies, time of concentration, and antecedent factors to select best outlet control structure to prevent downstream flooding of residential developments.
West Branch of Sycamore Creek - This project was for the P.R. Duke Company and involved a substantial analysis utilizing the HEC-2 Analysis Computer Program to determine required facilities for a proposed project in the vicinity of Montgomery Road and Galbraith Road. This project consisted of totally enclosing the west branch of Sycamore Creek in a large box beam structure at its confluence with Raiders Run Creek for constructing a parking lot over the creek.
Kings Mills Road Improvement Between the City of Mason and I-71 - This project in addition to upgrading a two-lane facility to a five-lane highway involved considerable hydraulics and hydrology for a 100-year frequency occurrence. The project is in the preliminary design phase with an estimated cost of $2 million.
North Branch Sycamore Creek Erosion Control Study and Design - This project was for the stabilization of bank erosion behind an existing residence on the west side of Loveland-Madeira Road. The project cost is $65,000.
Wyoming Culvert - This is a replacement culvert on S.R. 4 in northern Wyoming. The drainage area tributary to the culvert is approximately 300 acres. The hydrologic and hydraulic analysis resulted in a run-off requiring a 96" diameter conduit. The construction cost of the project is $170,000.
Lawrenceburg, Indiana Drainage System - The storm drainage collection system for the City of Lawrenceburg, Indiana consists primarily of a loose laid stone sewer of varying height and width. We physically investigated the sewer to determine remedial measures to be taken as well as the need for parallel and/or supplementary sewers. The project is anticipated to be in excess of $1 million.
Indian Hill Road West - This was a project for the Village of Indian Hill involving the design and supervision of construction of a major storm drainage system. The construction cost was $60,000.
Queen City Terminal Facilities - The project involved the field and office work necessary to design storm drainage protection facilities to provide necessary protection at the terminal site and at the same time meeting City and FEMA requirements.
Rosetree Relief Sewer (Anderson Township) - This project for the Department of Public Works (Hamilton County) is in the construction phase. Construction cost was $180,000.
Lichtenberg-Williamson Road Storm Water Detention Facility - Project involved the utilization of the proposed parking area to provide impoundment for a detention facility. The project was constructed at a cost of $25,000.
Oakview Storm Sewer System - This project was for the City of Cincinnati and involved the hydrologic and hydraulic analysis in conjunction with the utilization of a retention reservoir, a new stormwater pump station and force main. The project was constructed at a cost of approximately $110,000.
Hamilton County Sanitary Engineering Department - These storm drainage projects involved Deauville, Wheatcroft, Jonrose, Ebroe Court and Gwilda for a total construction cost of about $125,000.
Steelcraft Storm Drainage Analysis and Replacement at the Blue Ash Plant - Project involved an in-depth analysis of the plant drainage system as well as the outfall sewers.
Cincinnati Zoo - This project included the Centroid Display, Swan Lake, and Gibbon Lake Improvements with detailed hydraulic analysis combined with a water conservation program. The project cost for the facilities designed by SWS is approximately $70,000.
Hamilton County Blue Rock Detention Reservoir - This is a project in Colerain Township which was designed to eliminate flooding of downstream properties for 100-year frequency occurrence. The capacity of the detention reservoir was approximately 72 acre feet. It was a structure requiring dam permit by the Ohio Department of Natural Resources.
Kings Island Amusement Park - Our Firm was a part of the design team for Taft Broadcasting in the planning and construction of the Kings Island Amusement Park. We were responsible for the designing of approximately ? of the total park, including roads, parking areas, all utilities including sanitary collection and treatment, potable and irrigation water systems and the primary electrical distribution throughout the park. Our design represented construction cost in excess of $10 million.
Hamilton County Rosetree Storm Drainage Improvement - This project is located in Anderson Township and is now in the construction phase. The project was necessitated by continual flooding in a well established neighborhood. Construction cost is $238,000.
Hamilton County Sunnywoods Retention Basin - This project was to alleviate the flooding downstream by the retention of water. Cost is $228,000.
Subdivisions Requiring Stormwater Detention - We have over the past years prepared designs or reviewed proposed designs of stormwater system design and stormwater detention for many local jurisdictions, including the City of Cincinnati, Hamilton County Dept. of Public Works, Village of Evendale, Village of Indian Hill, City of Blue Ash, Clermont County Engineers, and the City of Mason to name a few. Our experience includes roles as both design firm and design review firm.
Swings Corner Point Isabel Road Bridge Replacement Clermont County Engineer's Office - . This project involved the preparation of a HEC-Ras Analysis for use in determination of the suitable waterway opening for proposed structure. Cost $450,000.00
Woodstone Acres Drainage Study Union Township, Clermont County - . This project involved the study of the Woodstone acres Subdivision. The study resulted in the determination that the problems were caused by several different issues. The final report outlined corrective action for all of the problems, the largest resulting in the township being able to add additional detention to an upcoming subdivision that served as a regional detention, alleviating most of the issues in the area. Responsilities also included a large amount of public involvement and presentation. - Cost $400,000.00
Emmerson Lane Drainage Study-Clermont County Stormwater Dept. - . Project involved the study of the Emmerson Lane Drainage area in Miami Township, Clermont County, Ohio. Being an area developed prior to modern subdivision standards, the subdivision has a very flat above ground drainage system resulting many problems. Our study identified several of the most feasible options to correct the issues in the area, as well as construction cost estimates for each option.