Representative Hydrologic/Hydraulic Projects

Hydraulic Reports for Bridge Replacement Projects of the MA Highway Department
Prepared hydraulic reports documenting hydrology, hydraulics, and pier/abutment scour protection for four MA bridges:
Hix Bridge, E. Br. Westport River, Westport; Dexter Road Bridge, Laundry Brook, Newton; Potter Road Bridge,
Mumford River, Douglas; Thompson Street Bridge, Powwow River, Amesbury. 

Farm River, E. Haven and N. Branford, CT
Created an unsteady-flow HEC-RAS model to investigate combinations of bridge removal and culvert
enlargement alternatives to reduce flooding upstream of Interstate I-95’s undersized culverts.

Aberjona River, Winchester, MA
 Updated statistical analyses of USGS gage streamflow records, and used HEC-RAS to determine
with- and without-project stage-frequencies at damage areas for this channelization project. 

Flood Insurance Studies & Flood Hazard Identification Studies, VT & CO
Involved with all aspects of numerous flood studies covering well over 100 miles of river. 
Efforts included: determination of hydrology; field surveys of cross-sections, bridges and culverts; setup and
calibration of HEC-2 models; floodplain boundary mapping; report preparation; and presentations to town officials. 

Martins Pond, N. Reading, MA
Used an unsteady-flow HEC-RAS model to evaluate proposed changes in size of the Route 62
culvert on peak flood levels and flood durations at a critical access road to Martins Pond.

Strongwater Brook, Peabody, MA
Developed a HEC-HMS model to evaluate the benefits of increasing flood storage at Meadow Pond
to reduce downstream flooding.

Mill Pond Dam, Stamford, CT
Created a HEC-RAS model in order to assess the hydraulic impacts of dam/floodwall removal,
and subsequent channel stability.

Wiswall Dam, Durham, NH
Used HEC-FFA to update hydrology of the Lamprey River, followed by use of a HEC-RAS model
to model flood and low flows, and to evaluate construction of a nature-like bypass channel for fish passage purposes.

Musquashcut Pond, Scituate, MA
Evaluated the impacts of tide gate setting on pond water surface elevations and flushing using an unsteady-flow
HEC-RAS model of the pond, brook, Gulf Estuary and Cohasett Harbor.

Bostik Dam, Middleton, MA
Updated Ipswich River hydrology using HEC-FFA. Set up a HEC-RAS model to ascertain the impacts of
drawing down the pond in advance of a flood on downstream flooding, and to evaluate the impacts of dam removal.



William J. Mullen, P.E.
Hydrology & Hydraulics Consultant
Newburyport, Massachusetts 01950
Phone: 978-235-0875

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