expense, provide suitable and safe means for completely covering all open
excavations and for accommodating travel when work is not in progress.
B. Bridges provided for access to private property during construction shall be removed
when no longer required.
C. If/where applicable, the length of open trench will be controlled by the particular
surrounding conditions but shall always be confined to the limits prescribed by the
Engineer.
D. All street excavations shall be completely closed at the end of each work day.
Backfilling or use of steel plates of adequate strength to carry traffic shall be used.
E. If/where applicable, Trenched areas shall be paved with temporary bituminous
pavement, as detailed on the plans or as directed by the Engineer, as soon as
practicable after installation of individual pipeline segment but at least on a weekly
basis. No trench shall be left without pavement for longer than seven (7) days. The
Contractor is responsible for maintaining the trench, at no additional cost to the
Owner for the Contract duration.
4. Maintenance of Traffic
A. Unless permission to close the street is received in writing from the proper authority,
all excavated materials and equipment shall be placed so that vehicular and
pedestrian traffic may be maintained at all times. Traffic control plans must be
submitted to the City of Nashua’s Traffic Department (with a copy to the Engineer)
for review and approval.
B. Should the Engineer deem it necessary, uniformed officers will be assigned to direct
traffic. Daily coverage must be approved by the Engineer. The Contractor shall
make all arrangements in obtaining uniformed officers required.
C. The Contractor shall at his/her own expense, as directed by the Police Traffic
Control/Safety Officer or the Engineer, provide and erect acceptable barricades,
barrier fences, traffic signs, and all other traffic devices not specifically covered in a
bid item, to protect the work from traffic, pedestrians, and animals. He/she shall
provide sufficient temporary lighting such as lanterns/flashers (electric battery
operated) or other approved illuminated traffic signs and devices to afford adequate
protection to the traveling public, at no additional cost to the Owner.
D. The Contractor shall furnish all construction signs that are deemed necessary by and
in accordance with Part VI of the Manual on Uniform Traffic Control Devices as
published by the U.S. Department of Transportation, latest edition. In addition, the
Contractor may be required to furnish up to 128 square feet of additional special
construction waming signs.
E. The intent of policing is to ensure public safety by direction of traffic. Police officers
are not to serve as watchmen to protect the Contractor's equipment and materials.
2019 CIPP Lining Project Control of Work and Materials
Nashua, NH 01110-2
