dam engineering project - quantum-cc.com
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27 LOCKE ROAD, CONCORD, NH 03301-5417 TEL: (603)224-0859 FAX: (603)224-3625
QUANTUM CONSTRUCTION CONSULTANTS, llc
The Cummins Pond Dam (Dam #066002) is an earthen dam having a maximum height of 12 feet,
and an overall length of approximately 130 feet. The dam outlet works consist of a 12-foot wooden
stoplog section with mortared field stone masonry training walls and an emergency overflow
channel to the east of the dam. The dam had deteriorated over time and was in need of repair.
Areas of concern iincluded hydraulic capacity and stability of the wooden spillway, settlement of the
embankment dam, seepage at the toe, and leakage through the masonry channel walls.
QCC designed a new spillway with stoplogs and steel stanchions,
and seepage control measures for the earthen embankment. A new
wooden pedestrian bridge crossing over the top of the spillway was
also constructed. Reinforced cast-in-place concrete wall facings
were designed and constructed against the existing mortared field
stone masonry at the spillway structure, leaving the long masonry
training walls exposed to retain the historic character. A new
concrete spillway apron was constructed as well.
QCC prepared applications and coordinated for environmental and
dam reconstruction permits for this project. The project was completed in Fall 2016.
Contact:
Mr. Robert Green
Green Woodlands LLC
PO Box 330
Lyme, NH 03768
Dam Engineering Project
Cummins Pond Dam
Dorchester, NH