City of Cambridge offices, libraries and senior centers will be closed Monday on the Patriots’ Day holiday, and some services will be delayed.

Voting will be for three board member seats and for president. Board terms are three years. The president has a one-year term and is elected by the membership from the members of the board, including those newly elected.

Free document shredding will be offered Sept. 9 in front of the Citywide Senior Center in Central Square, Cambridge.

There will be construction on Route 28 northbound and southbound between Third Street in Cambridge and Broadway in Somerville through Aug. 25.

Blue Cross Blue Shield of Massachusetts is sponsoring free Bluebikes every Sunday in May as part of its second annual “Miles for Mental Health” initiative.

Due to big storms overloading sewer systems, 50 million gallons of sewage contamination were dumped in 2021 into the brook leading to the Mystic River.

A free program on “Care and costs to keep my trees healthy” is set for 7 p.m. Wednesday in Room 3-097 of Lesley’s University Hall, 1815 Massachusetts Ave., Porter Square, from the group Cambridge4Trees.

City of Cambridge offices, libraries and senior centers will be closed Monday on the Patriots’ Day holiday, and there’s more residents should know.

The Barron Educational Scholarship has returned, available to Cambridge residents graduating from high school this spring and moving on to college this fall, the sponsoring Cambridge Chamber of Commerce. said

Cambridge offers a low-cost rabies vaccination clinic for dogs and its annual dog-licensing event from 9 to 11 a.m. April 1.