ASCE-NH/SENH SEPTEMBER MEETING ANNOUNCEMENT
PRESENTATION:
Design and Construction of Sarah Mildred Long Bridge
Wednesday, September 27, 2017
The new Sarah Mildred Long Bridge replaces the existing structure
that was completed in 1940. The original bridge for many years was
known as the Maine-New Hampshire Bridge. In 1987 the bridge was
renamed to honor Sarah Mildred Long, an employee of the Maine-
New Hampshire Interstate Bridge Authority for 50 years. The honor
was retained for the new structure.
The new bridge consists of 200’ tall precast concrete towers that will
support a 300’ long steel box girder lift span. With a large 56’ vertical
clearance in its mid-level resting position there will be 68% fewer bridge lifts. Its lower position will
allow the passage of railroad traffic, while its upper position will allow
the passage of tall ships. The approach structures are precast
segmental concrete box girders built in balanced cantilever. The
roadway spans are 320’ long, while the railroad spans are 160’ long.
The presentation will provide an overview of design and construction
of the bridge. Particular focus will cover the unique engineering
aspects of the project including main bridge foundations, precast
concrete towers, lift mechanics, and the precast concrete approach
superstructures.
SPEAKERS:
Chris Burgess, P.E., S.E., P.Eng. is a Principal Bridge Engineer with Figg Bridge Engineers (FIGG)
for over 26 years. Chris is the Lead Design Engineer of the approach structures and is providing
technical support and construction quality review for this fast track, high profile concrete segmental
bridge. Chris received both his Bachelor and Masters of Sciences Degrees in Structural Engineering
from the University of Colorado. He is a registered Professional Engineer in 24 states, a registered
Structural Engineer in 6 states, and a registered Canadian Professional Engineer in British Columbia.
Peter Roody, P.E. has been with Hardesty & Hanover since 1982. As Chief Engineer of Bridges and
Movable Structures, he is responsible for project management, structural designs, investigations, and
construction support services for major engineering projects. A multi-national project manager and
lead engineer, Mr. Roody’s experience includes fixed and movable bridge projects and special structures
including travelers, cranes, movable roofs and various heavy movable structures. For 35 years at H&H,
Peter has lead multi-disciplined projects that involved structural, mechanical, electrical, traffic,
environmental and construction disciplines.
PLACE: Sheraton Portsmouth Harborside Hotel, 250 Market St. Portsmouth, NH
AGENDA: 5:30 pm – 6:30 pm Registration/Social Hour/Cash Bar
6:30 pm – 7:15 pm Dinner
7:15 pm – 7:30 pm Business Meeting
7:30 pm – 8:30 pm Presentation
DINNER: Buffet with choice of Herb Roasted Sliced Sirloin with cabernet mushroom demi-glace,
Seared Fresh North Atlantic Salmon with lemon herb viniagrette.
COST: ASCE/SENH Member/Non-Member: $65.00 Full Time Student: $20.00 - ‘no-shows’
will be billed at full amount.