Three Rivers Interlocal Council (TRIC)


Smart Growth & Regional Collaboration

The Three Rivers Interlocal Council (TRIC) is one of MAPC’s eight subregions comprised of thirteen communities located southwest of Boston: Canton, Dedham, Dover, Foxborough, Medfield, Milton, Needham, Norwood, Randolph, Sharon, Stoughton, Walpole, and Westwood.

TRIC gets its name from the three major rivers in the sub-region: the Neponset, Charles, and Canoe River. The mission of TRIC is to support cooperative municipal planning that links the impacts of growth and development in each town to aggregate impacts felt throughout the region. TRIC meets monthly to review and discuss issues of inter-municipal significance. Participants at TRIC meetings can include Local Council Representatives, town planners, members of Boards of Selectmen and Planning Boards, Town Administrators, Chambers of Commerce, and interested citizen-planners. All meetings and events are open to the general public.


Abbey Judd
TRIC Subregional Coordinator

The Three Rivers Interlocal Council (TRIC) is one of MAPC’s eight subregions comprised of 13 communities located southwest of Boson: Canton, Dedham, Dover, Foxborough, Medfield, Milton, Needham, Norwood, Randolph, Sharon, Stoughton, Walpole, and Westwood.

Chair: Patrick Deschenes, Town of Walpole
Vice Chair: Open

Photo of a cement bridge with two oval openings in the bottom that water from a lake can go through. Surrounded by trees, plants, and other shrubs.


September TRIC Meeting | Tuesday, September 19, 9:00 – 10:30 a.m.
Location: Islington Center Redevelopment at Wentworth Hall (273 Washington Street Westwood, MA  02090)

October TRIC Meeting | Tuesday October 17, 9:00 – 10:30 a.m.
Location: Virtual on Zoom (

If interested in joining, please email


Each fiscal year, the Council creates a work plan to guide discussions and meeting topics for the subregion. The fiscal year begins in June and ends in July.

Not the usual suspects: Diversifying Local Boards & Commissions

In the past year, municipalities in the TRIC subregion have been exploring the role of local government and planning in race and equity. These conversations identified diversity and representation on boards and commissions as one of many priorities that relate to an equitable community. TRIC hosted a DEI conversation around barriers to civic engagement and opportunities for civic engagement. We were joined by Beth Chandler from YW Boston to discuss how these issues intersect with state policy, and ways to support organizations in systems change.

Transit Inventory

The interactive map, created by Christine Madore, MAPC Land Use Staff, that takes a closer look at the types and providers of local transit available within the region. It's an incredibly useful tool to learn more about current transit system in the region and begin thinking about how it needs to grow in the future.

Read our Regional Housing Production Plan, learn about Regional Housing Services Offices, and other work MAPC does to help municipalities collaborate.

Neponset Valley Attractions

The Neponset Valley is rich in artistic and cultural resources, historical sites and wonderful small museums, and recreational opportunities for all ages.

Click here to browse an online database of local attractions put together by the Neponset Valley Chamber of Commerce.

Neponset Valley Chamber of Commerce

TRIC is a proud partner of the Neponset Valley Chamber of Commerce. The Chamber is representative of the wide variety of Chamber towns and business categories, from owners and managers of all sizes and types of businesses, to members of all the professions, our Directors execute the mission of the Chamber: to help Neponset Valley businesses flourish.

Neponset Valley TMA

The Neponset Valley Transportation Management Association (TMA) is the partnership between the businesses in Norwood, Westwood, Canton, Dedham and the towns themselves to work on the transportation issues in the area The goal of the Neponset Valley TMA is to reduce the number of cars on the road to alleviate traffic congestion and improve air quality and it works closely with its members to achieve these goals by creating a community-consciousness regarding traffic, transportation and related matters.

Municipal Documents

Work Plans

Useful documents