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Great Blue Hill Septic System Replacement and Trail Improvements Underway

July 10, 2025

Septic System Work on the Summit of Great Blue Hill

Work began in July on the septic system and related improvements on the summit of Great Blue Hill. DCR anticipates the bulk of the work will be completed this fall.

Early kite sheds at GBH used steam driven winches to reel kites in. The early kite shed housed these weather kites vital for collecting weather data, a technique still employed today. The GBH Kite shed was featured in photographs at the 1904 Chicago Worlds Fair.

NOTE:

Closures of certain trails and a small portion of the road near the weather observatory are necessary to allow construction to proceed.

Please adhere to closures, detours & warning signs when encountered for your safety.

Construction vehicles will regularly traverse the GBH Summit Road and we ask you to use caution at all trail crossings and when using the GBH Summit Road.

 

Bridge Path at Base of Great Blue Hill Summit Road

Work has progressed quickly on the construction of a new path between the North Parking Lot near Trailside Museum and the base of the GBH Summit Road.