Creating the Right Solutions Together

Example Projects

• Survey & Site Plan, Proposed Police Station, Plainville, CT

HRP Associates, Inc. prepared a Class A-2 property survey and Class T-2 topographic survey for the preparation of a detailed site plan for the construction of the new Plainville Police Station. The proposed site includes a 20,000 ft² building, parking lot, curb cuts, sidewalks, handicap building access, drainage system including a storm water pump station, and utility extensions. HRP also prepared a detailed construction cost estimate and design specifications, and attended bi-weekly meetings during the $3.5 million dollar construction project.

The project was complicated by the extensive presence of flood plain and connections to both existing and proposed roadways. HRP’s work included a detailed evaluation of the flood hydraulics and the capacity of the proposed drainage system to store, convey, and discharge the stormwater safely off-site. HRP also integrated its plan with the remediation plan for handling contaminated soil at the site. This project required the close coordination with the project architect, mechanical and electrical engineers, and the Municipal Project Advisory Committee.

 

• Bridge Replacement & Geotechnical Engineering, Munyon Road Bridge, Putnam, CT

  HRP prepared bridge replacement drawings and specifications for the Munyon Road Bridge.  The project involved removing the existing concrete bridge and installing pre-stressed concrete deck units and parapets on cast-in-place concrete abutments and bridge railing, as well as approximately 115 meters of roadway reconstruction. As part of this work, HRP prepared topographic survey, hydrologic and hydraulic analysis, subsurface investigation, pile and sheeting design, structural design, and inland/wetlands permitting for the work. Of particular note was that due to seismic requirements, the bridge required the installation of end bearing piles to support the abutments.   

  In addition, the project required the design of left in place steel sheeting for use as a cofferdam during construction and storm protection of the footing during high velocity flood flows.  This project was funded under the ISTEA program which entitles the town to 100% replacement costs for the bridge replacement with state & federal funds. HRP also performed shop drawing review, construction inspection, and project administration.

• Hazardous Waste Storage Building Design, US Navy Subbase, New London, CT

HRP Associates, Inc. prepared design of site plans and specifications for a 13,400 square foot hazardous waste storage building.  HRP initially performed T-2 topographic survey and geotechnical investigations of the site. This structure includes the following:  separate storage bays for incompatible wastes; positive and negative air ventilation systems; explosion proof electrical systems; explosion panels for areas containing ignitable/reactive wastes; leak detection/ containment systems; computerized monitoring of key mechanical systems and a fire protection system which includes water, foam and CO₂ suppression systems. The project also includes the extension of water, sanitary sewer, electrical, gas, telephone and storm sewer systems to service the site. This project was completed on a very tight schedule due to its inception late in the fiscal year. 

This project also included preparation of a Part B permit application for this site. This application included detailed descriptions on waste characterization, storage and handling of hazardous wastes, record keeping procedures, and explanation of safety systems on site used to prevent/contain any release from impacting human health or the environment. HRP performed shop drawings, submittal review, change order review, and on-call consulting as part of PCAS tasks for the project. 

HRP continued its service to this project long after completion of its design and contract with the Navy.  HRP provided follow-up visits to the site and technical advice to the base to optimize systems within the building.

• Stormwater Channel Improvements, Bristol, CT

HRP Associates, Inc. has been selected by the City of Bristol to help correct a significant drainage problem. Roughly 1800 lineal feet of an open-flow storm-water channel overflows frequently during wet seasons and heavy rainfall, and has flooded certain residential properties.

As a tributary of Copper Mine Brook, there is an open-flow stormwater channel situated between Stafford Avenue and Brook Street. This 1800-foot long channel has caused flooding of certain properties, and HRP was retained to help correct the deficiencies. Field survey has been performed to locate drainage features and prepare base mapping, and our civil team is evaluating drainage characteristics and anticipated flows.

HRP is currently engaged in a program to design channel improvements. After we perform a thorough survey of the channel and adjacent properties and flag any wetlands, a drainage evaluation will be performed. HYDRAFLOW 2002 software (for Storm Sewers and hydrographs) will be used to model existing conditions, define the watershed, evaluate capacity and hydraulic characteristics. 

HRP will then develop alternative design improvements for the channel, and assist the City with permitting requirements. Design documents will be prepared for improvements to clean and stabilize the channel, eliminate flooding, and obtain the required permits for local wetlands and the CTDEP. A U.S. Army Corps category II permit will also be prepared for the improvements.

The City needs the work accomplished in a timely manner, and at reasonable cost. Since HRP can provide survey, geotechnical expertise, civil and drainage, and permitting assistance all in-house with the most up-to-date-software, we were able to reduce project cost and help the City meet their budgets.

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