Brambleton Avenue Bridge Rehabilitation
Project
Frequently Asked Questions
Q. Given the severe disruption this project will cause for downtown, ODU, and the Medical Center Complex, has the city required the repairs to
be done on a 24/7 (around the clock) time schedule?
A.
We have not required the contractor to perform the
work on the Brambleton Avenue Bridge on a 24/7 basis. While 24/7
operations are used very successfully on some highway projects, notably VDOT
Interstate maintenance projects, there would be a number of consequences
associated with a 24/7 operation on the Brambleton Avenue Bridge.
One of those consequences is
the proximity of the bridge to the residential areas along the Hague, in
Freemason Harbor, and in Fort Norfolk. The work on the Brambleton Avenue
Bridge is going to be noisy. Included in the rehabilitation are pile
driving operations, demolition of the existing concrete bridge decks on both
spans, and numerous concrete repairs involving chipping hammers and other
similar equipment. The sound of this work will be very noticeable during
the day, but the sound at night drifting across the water would be very
disturbing to the adjacent neighborhoods. In addition, work at night would
require the use of very bright construction lights along the bridge, powered by
numerous generators, further compounding the disruption.
Another consequence of night
work on the bridge would be safety and quality control. Marine work is by its
very nature somewhat dangerous, and the insurance premiums for marine
contractors reflect this. Night operations compound this danger,
particularly for work beneath the bridge deck where construction lighting is
problematic. Also, during demolition of the bridge decks it will be
necessary for the contractor to prevent concrete rubble from falling into
Smith’s Creek. Working at night makes it very difficult for the contractor
to collect the rubble properly, and for our construction inspectors to insure
this is the case. Lastly, when the new bridge decks are formed and
finished, working under lights does not result in the same quality riding
surface as work performed during natural daylight. VDOT does use night work to
perform joint repairs on the interstate because of the heavy traffic volume
during the day, but the resulting product does not provide a smooth riding
surface.
Finally, a word about cost.
Running a 24/7 operation with three shifts would require a contactor with a very
large workforce, and there are only a few contractors that could supply the
necessary manpower for such an operation. A 24/7 requirement would
preclude most moderate sized contractors from being able to bid the project, and
this in turn because of reduced competition would drive up the cost of the
bridge project significantly.
In summary, a 24/7 operation on
a major roadway project was a consideration. In the particular case
of the Brambleton Avenue Bridge there would be a number of consequences
including disturbances to residents, safety, and quality control which would
result from such an operation. We recognize the inconvenience which will
result from the bridge project, but trust that constructing the project during
normal working hours will result in a much better project with fewer disruptions
overall.
Send your questions to:
Chuck
Joyner, P.E.
Assistant City Engineer
Public
Works - Design & Construction Division
810
Union Street, Room 700
Norfolk, VA 23510
(757)
664-4602
E-mail:
pwdesign@norfolk.gov
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