- Количество слайдов: 25
2012 -19 Capital Improvement Program Presented to the Merrimack Town Council November 15, 2012
Minimum CRF Funding
2013 -14 Projected CRF Funding
CRF Funding Comparison
2012 -19 CRF Funding Projections
Major Projects General Fund
Major Projects Funding Sources
Road Infrastructure CRF
Bridge Replacement – Manchester Street (ongoing thru 2014) Manchester Street bridge over the Pennichuck Reservoir (120/026) was constructed in 1935. The concrete bridge deck is supported by I-beams on granite abutments. This red list bridge is in the State Bridge Aid Program in which NHDOT pays for 80% ($2, 084, 800) of the construction costs of the bridge. The remaining 20% ($521, 200) is paid by the Municipality, in this case Merrimack’s share is 5% ($130, 300), Nashua’s share is 15% ($390, 900). The replacement of the bridge will remedy the sinkholes that happen on the approaches resulting from soils eroding through the stone abutments as water levels rise and fall. The geometry of the road and the safety components of the bridge including the bridge rail and bridge approach rail will also be corrected. The project design is nearly complete. Environmental and historic preservation determinations need to be resolved prior to construction. The project will preserve the existing granite abutments which have been classified as an historic resource. Construction is expected to begin next summer/fall. Manchester Street Looking East. Elevation of Existing Bridge. Failing Granite Wingwall.
Stormwater Drainage Improvements (2013 -14 Projects) The Department of Public Works maintains a prioritized list of drainage improvement projects. The list is updated twice each year. Projects are scored based on criteria in 4 subject areas – Public Health and Safety; Private Property Impacts; Public Property Impacts; and Secondary Factors. Projects are also classified as a Highway Division project, a Contractor project, or a combination of the two. Total funding is estimated to be $200, 000. Anticipated projects for the FY 14 construction are: o West Chamberlain Road/Souhegan River o DW Highway/Naticook Brook o Amherst Road/Naticook Brook o Wilson Hill Road o Glenforest Drive/Pine Street o Townwide Basin Repairs Roadway & Driveway Damage. Street Flooding. Sink Holes.
Paving / Infrastructure Improvements (recent projects and 201314 project roads) The Department of Public Works maintains over 475 roads totaling approximately 180 centerline miles. The Department uses a pavement management database in which physical road distresses for each road are tabulated to derive a PCI (Pavement Condition Index) for each public road. This data, along with traffic volumes, drainage/sewer projects, funding, and other factors are used to develop the paving/infrastructure improvement program for the year. The 2013 -14 Paving budget is estimated to be $675, 000. Paving Binder on Reclaimed Base. All or part of the following roads were paved during the past four years: 2012 – Reeds Ferry Way, Paige Drive, Level Street, Lyons Road, Merrill Road, Bates Road, Marty Drive, Linden Way, Stonedge Way, Lamson Drive, Sands Terrace, Winchester Drive, Westborn Drive, May Drive, Lawrence Road, Mc. Question Road, Joppa Road. 2011 - DW Highway, Continental Boulevard, Amherst Road, Baboosic Lake Road, Railroad Avenue, Beaverbrook Drive, King Henry Court, Samuel J Drive, Naticook Road, Currier Road, Souhegan Drive, Birch Street, Fir Street, Hemlock Street, Tiffany Lane, Pinehaven Drive. 2010 - Palmeri Drive, Gerard Drive, Rushmore Court, Royal Court, Eden Street, Park Avenue, Forsythia Lane, DW Drive, Island Drive, Tennis Court, Liberty Lane, Bristol Street, Matthew Drive, Woodridge Road, Brewster Street, Audubon Circle, Allen Road, Hilton Drive, Butternut Lane, Hickory Lane, Baboosic Lake Road, Bean Road, Peaslee Road, Boston Post Road, Thornton Road West, Turkey Hill Road. 2009 - Stowell Road, Cobblestone Place, Steeplechase Drive, Bedford Road, Wilson Hill Road, Heidi Lane, Den Avenue, Woodhaven Circle, Twin Bridge Road, Bryant Circle, Gail Road. New Lane Lines on Pavement. Alligator Cracked Roadway.
Traffic Signal/Intersection Improvements (2013 -14) The Public Works Department is planning improvements to the traffic signals at Front Street and Baboosic Lake Road. This project will be funded through the Road Infrastuture CRF Front Street: The signals heads are poorly aligned with the traffic lanes and are held onto the mast arms with wire. This improvement project would upgrade the mast arms to allow for proper placement of the signal heads and update the components in the signal cabinet. Baboosic Lake Road: The Baboosic Lake Road intersection currently operates as a three-phase intersection. Changes in use of the property across from Baboosic Lake Road necessitate a fourth phase to allow traffic to safely pass safely through the intersection. The components in the signal cabinet require replacement. The controller for this intersection is old technology that cannot manage a four phase intersection. Front St. Cabinet – Poor Location. Front St. – Signals Misaligned. Baboosic Controller – Outdated Technology.
Wire Road Intersection Improvements/Roundabout (Engineering to begin in 2013 -14) The Wire Road intersection with Daniel Webster Highway is poorly aligned. This project will improve safety by realigning the intersection. This project will be funded through the Road Infrastructure CRF. There have been 19 accidents at the existing intersection from the period of January 1, 2006 to September 18, 2012. Of those, fourteen involved property damage, four resulted in personal injury, one involved a school bus, and one was uninvestigated. Two options are being considered: Sharp curve to align Wire road at a 90 degree angle to Daniel Webster Highway with traffic signals, or a roundabout intersection. Both options would include a new point of ingress/egress to the Twin Bridge Park/Bise Field/MYA Building facilities that would improve safety versus the existing drive across from Church Street. Aerial View of Wire Road/DW Highway Intersection. Signalized Intersection. Roundabout Intersection.
Paving DW Hwy (Chamberlain Bridge to Bedford Rd) (Paving to begin in 2013 -14 and continue into 2015 -16) The Town of Merrimack is responsible for maintenance on the Class IV section of Daniel Webster Highway which runs from Greeley Street to Bedford Road. In 2011, the Town rehabilitated the section from Greeley Street to the Chamberlain Bridge over the Souhegan River. In FY 15, Public Works will be rehabbing the remaining stretch from the Chamberlain Bridge to Bedford Road where needed. The timing of the FY 15 work is scheduled to coordinate with the completion of other work along the corridor including traffic signal upgrades at Baboosic Lake Road and Front Street, and intersection improvement at Wire Road/DW Highway. This project will be funded through the DW highway CRF. 2011 traffic counts along the corridor range from 13, 000 to 16, 000 AADT. DW Highway Paving DW Pavement Grinding DW Repair Prior to Paving
Highway Garage and Fuel Station Renovation (Design to begin in 2012 -13) This project will involve replacement of the existing garage, or extensive modifications to the existing structure. The plan is to provide a structure that will house many pieces of equipment currently stored outside. In addition, several areas of needed improvement and upgrade, some to meet current code requirements have been identified (as noted in the 2005 Turner study), which include: - Structural improvements to the roof for snow loading - Electrical capacity increase and possible 3 -phase service - Energy efficiency improvements - Restroom capacity increase and ADA compliance - Locker room and crew lunchroom space to accommodate rest periods during extended winter events - Expanded parts storage area - Fuel station renovation Highway Garage Exterior Sign Shop/locker Room Using a rough estimate of $210/SF for construction and renovation (11, 492 SF existing and 3, 100 SF addition) results in a total of $3, 064, 320. The PWD plans to hire a consultant/architect to develop a conceptual plan for this project during the winter of 2012/13. Fuel Pumps
Turkey Hill Road Intersection Improvements (project will begin in 2014 -15) The Turkey Hill Road intersection with Baboosic Lake road is poorly aligned. This project will improve safety by realigning the intersection. This project will be funded through the Road Infrastructure CRF There have been 15 accidents at the existing intersection from the period of January 1, 2005 to September 18, 2012. Of those, twelve involved property damage, four resulted in personal injury, and one was uninvestigated (parties came to PD to report accident). Aerial View of Turkey Hill Rd/ Baboosic Lk Rd Intersection. Two design concepts are being considered: Curve the end of Turkey Hill Road to align at a 90 degree angle to Baboosic Lake Road, or a roundabout intersection. Curved Road w/Stop Intersection Roundabout Intersection.
Bridge Replacement – Mc. Gaw Bridge Road (Design to begin in 2015 -16) Mc. Gaw Bridge Road bridge over Baboosic Brook (116/137) was constructed in 1940. The bridge has a concrete deck supported by I-beams on granite abutments. The bridge spans 30 feet and is 31 feet wide (28. 6’ curb to curb). This bridge is in the State Bridge Aid Program in which NHDOT pays for 80% ($368, 000) of the construction cost of the project, while the Municipality pays the remaining 20% ($92, 000). The Town’s share will be funded through the Road Infrastructure CRF, Mc. Gaw Bridge Road bridge is designated as a redlist bridge by NHDOT inspectors. It currently has a weight limit posting of 20 tons. The 2008 AADT (Average Annual Daily Traffic) for this bridge is 1200. The predicted AADT for 2028 is 1776. Weight Restriction on Bridge. DPW Repairs to Deck in 2009. This project is scheduled to begin the engineering study in FY 16 with construction beginning in FY 17. View from Down Stream.
Griffin Street Boat Ramp Access Improvement (2016 -17) The Griffin Street Boat Ramp is set to be improved by the State once funding is available. Another stipulation prior to the improvement is that the access from Griffin Street to the access Road be improved. This project will be funded through the Road infrastructure CRF. Currently, the access road intersects Griffin Street at a 20 degree angle. The Public Works department has developed a proposed realignment that would allow the access road to intersect with Griffin Street at a 90 degree angle. The proposal results in a 14’ paved access road with a maximum grade of 12% down to the opening for the railroad bridge overpass. Additional scope for the project could be to improve the road between the railroad bridge and the boat ramp. The current road consists of very fine sand that is prone to rutting and potholes. Reconstructing to include an upgrade to a crushed gravel road could add up to $50, 000 to the project. Aerial View of access to boat ramp from Griffin Street. Proposed access realignment. Griffin Street Boat Ramp at Merrimack River.
Chamberlain Bridge Rehabilitation/Sidewalk Repairs (2015 -16) The Chamberlain Bridge (DW Highway over the Souhegan River) in a concrete arch bridge with block granite facing. The bridge was built in 1921 and rehabbed in 1934. It carries an AADT of 19, 000 vehicles. The mortar joints in the granite facing are failing and need to be rehabilitated. The approach sidewalk on the northeast end is a cantilever design and is failing – two 20’ x 10’ steel plates were placed in 2007 to maintain sidewalk access. This project would address these two major issues on the bridge and would have ancillary benefit to two other projects: o. The Heritage Commission would like to have the name of the bridge carved into one of the stones – this work could easily be accomplished during this project. o. Permanent repairs to the cantilever sidewalk would improve the aesthetics of the area below the sidewalks, which abuts Watson Park and the proposed trail connection underneath the Chamberlain Bridge. o. Project will be funded through the Road Infrastuture CRF Failing mortar joints. Cantilever sidewalk looking south. Steel plates on sidewalk at north end of bridge.
Phase III Wastewater Facility Improvements The Phase III Upgrade will replace the remaining 42 -year-old equipment at the Wastewater Treatment Facility (after Phase II is completed) that has reached the end of its useful life. Phase III is projected to cost $4, 800, 000. Improvements to the Wastewater Treatment Facility in Phase III include: replacement of collectors on the primary and secondary clarifiers, adding a raw wastewater screening plant to replace the original raw wastewater grinder, electrical upgrades to replace original Motor Control Centers, sludge pump and piping replacement for both secondary and primary sludge, sludge storage tank modifications, waste activated sludge pumps, process instrumentation upgrades, and diversion tank upgrades. Recommendations and costs were developed in the 2010 Facilities Study. Original Raw Wastewater Solids Grinder (1980) Sludge Storage Tanks (1970) DPW is looking to have this project funded in FY 2016 -17 by issuing a bond to be paid by user fees. One of 3 Primary Clarifiers (1970)
Thornton's Ferry & Souhegan Pump Station Improvements The Thornton's Ferry and Souhegan pump stations are the two largest pump stations in the sewer collection system. They pump approximately 75% of all residential and commercial wastewater to the treatment facility. Both stations are 40 years old. These stations are identical in appearance and construction with larger pumps located in the Thornton's Ferry station. Estimated cost of these improvements is $2, 800, 000. Souhegan pump station Improvements to these pump stations include: new pumps, motors, and controls, new solids grinders, new flow meters, replace piping and valves, dry pit recoating and painting, wet well coating and painting, replacement of doors and frames, replacement of force mains to gravity sewer, HVAC upgrades, bypass pumping, etc. Failures at either station would cause loss of service and environmental and health risks as well as potential fines by both NHDES and EPA. Pump motors to be replaced Recommendations and costs were developed in the 2010 Facilities Study. DPW is looking to have this project funded in FY 2016 -17 by issuing a bond to be paid by user fees. Pumps to be replaced
Minor Projects Funding Sources