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Current Projects

Our engineering experience encompasses a wide range of the challenges and opportunities facing today's municipalities and industries.

Commonwealth Engineers designs and implements each project so that it addresses every requirement as effectively and efficiently as possible, with an eye toward long-term needs.

Please find below some of our current projects.

Jennings Northwest Regional Utilities


WASTEWATER IMPROVEMENT PROJECTS

 

This project was awarded $10 million ARRA grant and $7 million OCRA grant to reach 100% funding.

Construction is to begin on March 1, 2010


Division “A” – Wastewater Treatment Facility Improvements Project

Project will consist of construction of new headworks with 1 mm fine screen & grit removal, new secondary aerations tanks with fixed media, a new blower building and miscellaneous piping, electrical and control improvements, new WWTP will have a design capacity of 0.352 MGD with a peak capacity of 1.7 MGD.

Division “B” – Vacuum Pump Station Improvements

Project will consist of the modification and expansion of seven stations including building construction, new tanks, pumps, controls and electrical systems.        
The capacity of the stations are as follows:
VSP – 1:    76 gpm                 VSP – 5:  197 gpm
VSP – 2:  140 gpm                 VSP – 6:  262 gpm
VSP – 3:  258 gpm                 VSP – 8:    89 gpm
VSP – 4:  290 gpm        

Division “C” – Vacuum Sewer Collection System Improvements

Project will consist of the installation of approximately 41,200 feet of 4 inch and 10,350 feet of 6 inch vacuum lines, approximately 35,150 feet of 6 inch gravity service collectors, and 198 vacuum valve pits.

Division “D” – Vacuum Sewer Collection System Improvements

Project will consist of the installation of approximately 43,200 feet of 4 inch, 15,420 feet of 6 inch and 2,255 feet of 8 inch vacuum lines, approximately 43,950 feet of 6 inch gravity service collectors, and 251 vacuum valve pits.

Division “E” – Vacuum/Gravity Sewer Collection System Improvements

Project will consist of the installation of approximately 20,720 feet of 4 inch and 6,390 feet of 6 inch vacuum lines, approximately 15,940 feet of 6 inch gravity service collectors, and 93 vacuum valve pits.  This contract shall also include 1,200 LF of 8” gravity sanitary sewer, 9 precast manholes and rehabilitation of 89 sanitary manhole structures.

Division “F” – Maintenance Building Improvements

Project will consist of the construction of an 80 ft. x 40 ft. wood frame building and associated electrical and site work. 

Division “G” – Vacuum Pit Alarm System

Project will consist of the installation of 542 vacuum pit alarm monitoring systems with radio systems and website interface.  

 

City of Huntingburg

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WASTEWATER TREATMENT PLANT IMPROVEMENTS PROJECT

 

Improvements to the wastewater treatment plant including construction of a new berm and retaining wall, new lagoon with blowers and diffusers, new effluent pump structure and effluent pumps, new blowers, diffusers, and associated modifications to the existing digesters,  improvements to existing lagoon aeration system, new W.A.S. pump, renovate an existing excess flow pump, provide an “off the shelf” back-up R.A.S. pump, modifications to sludge and air piping, and any and all associated improvements necessary and incidental to the work as shown on the plans and as indicated in the specifications.

Construction began February 19, 2010 and should take a little less than a year to complete.

Town of Bargersville


S.R. 135 WATER MAIN RELOCATION PROJECT

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This project includes, but is not limited to, the furnishing and installation of approximately 8,200 lineal feet of 12” water main and 1,100 lineal feet of 8” water main and appurtenances.  The work includes the following items:  erosion control, maintenance of traffic, water mains, gate valves and boxes, hydrants, connections to existing mains, roadway crossings, service taps, service line, metered services, granular backfill, pavement restoration, seeding and mulching, and water main abandonment.

Project was awarded to Reed & Sons and contstruction begin on February 22, 2010 and is expected to be completed October 25, 2010.

 

Southwestern Bartholomew Water Corporation


WATERWORKS IMPROVEMENTS PROJECT

Division A - Brown County Water Main Project

The Project includes, but is not limited to, the furnishing and installation of approximately 12,800 lineal feet of 8” PVC water main and appurtenances.  The work includes the following items:  water main, gate valves, hydrants, connections to existing water main, granular backfill, pavement, restoration, seeding and mulching, service line replacement, metered service installations, and erosion and sediment control.

Division B - New Water Booster Stations Project

The Project includes, but is not limited to, the furnishing and installation of two (2) packaged, pre-engineered water booster stations including all associated site work, piping, electrical work, controls, instrumentation, and connections to existing water mains.

City of Elwood

WATER UTILITIES IMPROVEMENTS

Elwood WelcomeElwood has taken advantage of the Stimulus money to make improvements in their community. They have started with improvements to their Water Utilities and construction began August of 2009. The project should take about 9 months to complete and cost approximately $1.4 million.

There are two divisions involved with these improvements and are described as follows:

Division A – Plant Improvements and Rehabilitation

This division includes work at both water treatment plants and several well sites. The well site work includes, but is not limited to, well house demolition, well pump rehabilitation, pitless unit installation, piping, valves, hydrants, connections to existing water mains, earthwork, erosion control, concrete slabs, compacted aggregate, fencing. The treatment plant work includes, but is not limited to, air distribution modifications, ductwork modifications, valves, piping, coatings, instrumentation and SCADA, a packaged chemical feed station installation, a new high service pump and appurtenances, laboratory furniture installation, concrete detention tank rehabilitation, magnetic flow meter installation, installation of portable dehumidifiers, door and frame replacement, electrical work, installation of a standby power system, horizontal pressure filter replacement, seeding, sodding and landscaping, and erosion control.

Division B – Maintenance Garage

This division includes, but is not limited to, work at the existing “B” Street Water Treatment Plant. The work includes design, fabricating, and erecting an engineered metal building, installation of water service, sewer service, plumbing, valves, earthwork and site drainage, electrical, HVAC, foundations, concrete sidewalks, access roads and parking areas, and restoration of ground within the construction limits.


Town of Newburgh

WASTEWATER TREATMENT FACILITY - VANADA ROAD 

Newburgh Ground BreakingThe smell of growth is in the air.

On Wednesday, August 26, officials with the Town of Newburgh broke ground on the new $22 million wastewater treatment facility on Vanada Road.

The project is partially funded by the American Recovery and Reinvestment Act. The town received one of the largest stimulus money grants in the state, earning $5 million to go towards the project.

The first wastewater treatment plant for Newburgh was constructed in 1961 and had a capacity of 200,000 gallons per day.  In 1972, an expansion was made that increased the capacity to 500,000 gallons per day. In a period of just over 10 years the capacity doubled. No more than two years later, they more than doubled the plant again to 1.25 million gallons per day. In 1991, another expansion increased capacity to 2.3 million gallons per day.  That jumped to 4.6 million gallons per day with an expansion in 1999.
Now about 10 years later, they are going from 4.6 to 7.4 million gallons per day.

Aside from the increase in capacity, the plan will also be utilizing a new, more environmentally-efficient ultraviolet light disinfection system, as opposed to the traditional Chlorine system.

This project was designed by Commonwealth Engineers, Inc. and will be constructed by Reynolds, Inc.

It will take approximately 18 months to complete.

 

City of Indianapolis

Indianapolis

LIFT STATION 313

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This project includes the development and evaluation of facilities plans for both the East Marion County and East Marion County Regional Interceptors. This study consisted of evaluating the existing collection system and projecting anticipated flows not only over a 20 year planning period but also for ultimate build out of East Marion County.

The plan provides phased projects for ensuring that anticipated flows are transported to the existing wastewater treatment facilities and eliminating SSOs. The interceptors consist of approximately 18,000 LF of 36-inch sewer and 6,000 LF of 42-inch through 60-inch sewer. This project also includes both the evaluation of and design upgrades to Lift Station 313.

The modifications project addresses existing deficiencies of the lift station. The project also consisted of upgrading the downstream infrastructure including the design of a fourth parallel siphon along South Marion County Regional Interceptor.

The project provides capacity upgrades to the lift station, anticipated to increase capacity from approximately 30 MGD to approximately 60 MGD.

Commonwealth Personnel:
Contact:
Albert C. Stong, P.E.
Mr. Mike Latos
M. David Mohler II, P.E.
City of Indianapolis
Brian Desharnais, P.E., Ph.D.
mlatos@indygov.org
Thomas A.Tiefert, P.E.
 


City of Richmond

East Side Interceptor Replacement Project - Phase I

This project primarily involves (a) replacing approximately 6,000 lineal feet of the existing 36-inch East Side Interceptor with a 54-inch interceptor, (b) replacing approximately 350 lineal feet of the existing 30-inch Round Barn Interceptor with a 36-inch interceptor, (c) replacing the influent channel structure near the WWTP headworks, and (d) cleaning and televising the West Side Siphon and a large portion of the remaining East Side interceptor. This project is the first phase of a multi-phase project to reduce overflows on the east side of the City and to comply with their Long Term Control Plan (LTCP). The preliminary phase on this project included surveying the existing interceptor and creating a hydraulic model using XP-SWMM to determine the most efficient configuration and alignment of the new sewer.

What makes this project unique is that the existing interceptor is located parallel to the Whitewater River and is located on the side of a 2:1 sloped hill, which falls at least 80 foot from top to bottom. In addition, the existing easement provides limited construction access including a single ingress and egress point.

 

City of Decatur

WASTEWATER UTILITY IMPROVEMENT PROJECT

 

Decatur WelcomeThis project was completed in June of 2009.

The improvements increased the treatment plant capacity to an average flow of 3.25 MGD and the peak flow capacity to 7.0 MGD.

Process Improvements included expansion of primary clarification, secondary nitrification and secondary clarification. The existing anaerobic digestion process was modified to the Auto Thermal Aerobic Digestion (ATAD) process which included the main reactor, a nitrification/denitirification reactor, heat exchanger, off gas treatment with scrubber and biofilter and automatic process controls.

Project construction costs were $5.7 million.

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