Section 49 – Signals, Lighting and Electrical Systems
12/1/03
49.3
Vehicle detectors and pedestrian push buttons shall remain in operation at all times during
the progress of the Work on an existing actuated traffic signal system, except as otherwise
specified in the Special Provisions or as provided herein.
Vehicle detectors taken out of service shall be repaired or replaced within seventy-two (72)
hours. New vehicle detectors for rerouted traffic shall be installed within seventy-two (72) hours.
Where work site conditions do not permit the installation of permanent vehicle detectors within
seventy-two (72) hours, temporary vehicle detectors shall be installed, at the Contractor's
expense, as directed by the Agency. Permanent vehicle detectors shall be installed as soon as
work site conditions permit.
49-1.07 Scheduling of Work
Scheduling of work shall conform to Section 86-1.07, “Scheduling of Work”, of the State
Specifications, except that paragraph 9 shall not apply.
Functional tests shall start on any Working Day except Monday, Friday, or the day
preceding or following a legal holiday.
49-1.08 Safety Precautions
Attention is directed to Section 6, "Legal Relations and Responsibilities”, of these
Specifications. Before starting work on existing series street-lighting circuits, the Contractor
shall obtain daily a safety circuit clearance from SMUD. By-pass switch plugs shall be pulled,
"Men at Work" and other required construction signs posted, and lockouts installed at switch
boxes before any work is done.
49-1.09 Inspection
Prior to backfilling conduit trenches or placing concrete foundations, the Contractor shall
notify the Agency and request inspection of all conduits and foundation forms.
All conduits, conduit couplings, conduit bends and ground bushings shall be in place and
properly tightened and secured, and all anchor rods, anchor bolts and ground rods shall be in
place in the foundation form prior to the request for inspection. Wire shall not be pulled in
conduits until inspection, backfilling and foundation concrete placement are completed. Stub
ends of all conduits shall have approved caps and ground bushings installed prior to backfilling
or placing concrete for foundations.
The Contractor shall not backfill, enclose, or otherwise cover up any electrical work prior to
inspection or testing. Should any of the work be backfilled, enclosed or covered up, the work
shall be exposed by the Contractor, at the Contractor’s expense, for such inspection or testing.
49-1.10 Signal Turn-On
Traffic signals shall not be turned on until all signal heads, pedestrian heads, backplates,
luminaries, detectors, push buttons, signs, and striping have been installed. The Contractor
shall give written notice of intentions of signal turn-on at least three (3) Working Days prior to
actual turn-on time so that Agency forces can accomplish the proper signing. The written notice
shall be given to both the Traffic Signal and Street Light Manager (875-5327) and the Signs and
Markings Manager (875-5133), and is to allow for a review of the signal prior to turn-on. These
Agency personnel may request, and shall be granted, a new turn-on date and review, pending
the results of their initial review.



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