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A
Steel Deck Arch Bridge
MassDOT has
determined that the current Kenneth F. Burns Memorial Bridge should be
replaced with a steel deck arch structure with five spans.
Initial announcement of the preferred alternative was made
at
the September
8, 2010 MEPA Scoping/Public
Information Meeting.
For more information on what went into
the type study, please see the Project Overview
page.
More
about the Steel Deck Arch
The
current Kenneth F. Burns Memorial Bridge is a concrete deck arch
structure with
the roadway resting on a series of columns supported by the bridge's
arches. By replacing the current span with a steel deck arch
structure, the project team will be able to build a bridge that takes
advantage of the following:
- Meeting the Goals of the
ABP
- It can be designed and constructed
within the
cost and schedule established by MassDOT for this project.
This is in keeping with the Accelerated Bridge Program's
commitment to complete projects on time and on budget.
- Constructibility:
- The preferred bridge type provides
significant constructibility benefits
and is readily adaptable to accelerated bridge construction techniques
due to the relative lightness of steel.
- A steel deck arch span
can be built using
a two-phase construction sequence without the need for a temporary
bridge. The proposed construction phasing will minimize the
impacts to
adjacent businesses and vehicular traffic.
- Responding to Roadway All
Roadway Users:
- The proposed alternative will provide for three
east and westbound travel lanes, westbound turning lanes, bicycle
accommodations, and sidewalks on both sides that will allow for
improved pedestrian mobility and views of the lake.
- The steel deck arch alternative will improve the
clearance of the bridge from its current height of 18’ above
mean high water at the mid-point of the arch to 23 feet above mean high
water over a horizontal clearance of 50 feet. This is in keeping with
the concerns of the boating community to facilitate the passage of
recreational boat traffic under the bridge.
- The proposed alternative will also provide an open
median that will allow improved light, visibility and safety for
recreational users of the lake.
- An Aesthetically Pleasing
Structure
- This bridge type provides an opportunity to build a new
bridge that is in keeping with the character of the area and the
community's wishes with regard to aesthetics in the following areas:
- A clean, uncluttered
structure with a relatively
traditional look and feel. The recommended span mirrors a bridge that
was proposed
during the early phases of design for the current 1916 bridge.
- A structure that will provide improved lake views
through the use of pedestrian overlooks and wide sidewalks.
- An open median providing for
improved lake views, additional light and safety for recreational craft
passing
below the bridge.
- A gateway bridge that will highlight the recreational
use of the lake through the use of aesthetic treatments and accent
lighting.
- MassDOT is continuing to coordinate with local elected
officials for additional improvements in the overall look and feel of
the bridge.
On
March 29, 2011, MassDOT conducted a public
information
meeting that showed the latest proposed design and recommended
aesthetic treatments for the bridge. The proposed design is the
result of comments received to date and attempts to accommodate all of
the concerns and requests to the extent possible. For
more information about this
meeting, please click
here.
The pupose of these brief videos is to provide the public with a
general idea of what the bridge could look like based on comments
received from the public to date. You may also wish to view
additional images of the specific segments of the bridge such as the
railings. For detail views, please click
here.
- Orbit: this video
provides a view of the proposed bridge from the top as though the
camera were attached to a helicopter hovering around the bridge.
- Overflight: in this
video, the camera pans along the top of the bridge from the Shrewsbury
side to the Worcester side.
- Passby: this video
provides a side view of the bridge from the lake's surface as it would
be experienced by a boater.
- Underflight: this
video
provides a view of the bridge from below as it would be experienced by
a boater going under the span from the north end of the lake to the
south.
Although
the 25% design is expected to be complete by September 2011, ,the
public
involvement process is not over. The design team wants to hear
from you
regarding how to make this important transportation link visually
pleasing and
intends to continue to keep the public informed during the final design
and
construction of the project.
We encourage you to share your thoughts with the
project's public involvement specialist.
Although MassDOT cannot accommodate every comment or
suggestion, all comments are considered to the extent possible.
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