Finance Committee

SECTION 02745A

LOOP DETECTORS, AND PAVEMENT MARKINGS

LOCAL TRAFFIC LOOPS 6’ X 50’ (2-4-2 TURN)

A. SCOPE

This work consists of furnishing all labor, materials and equipment necessary to install the
quadruple loop detectors as directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

This item shall include all labor, materials and equipment necessary to install new quadruple loop
detectors 2-4-2 turn, in conjunction with the paving program. Loops shall be installed in the
pavement surface prior to final overlay or top course.

3.10

A.

3.11

The method of adjusting these castings shall be as follows: Cut around catch basin or
manhole castings a minimum of 8-inches from casting. Excavate and if required rebuild up to
12-inches of masonry below the bottom of the casting. Backfill with suitable material and
compact to bottom of casting. Place high, early strength cement or bituminous
concrete collar, as directed, to approximately 1 '/2-inches below the raised casting grade.
Masonry work shall conform to Section 02631, PRECAST MANHOLES AND CATCH
BASINS.

E.

The planed surface shall provide a smooth riding surface free from severe gouges,
continuous grooves, ridges, oil film and other imperfections of workmanship and shall have a
uniform surface appearance exclusive of broken or cracked underlying pavement.

All existing pavement around castings shall be removed with hand cold planing equipment or
by the use of hand tools if necessary. Any castings damaged or disturbed shall be
removed and replaced as directed by the Engineer, at the Contractor's expense.

3.06 PAVEMENT PLACEMENT:

A.

B. BASE COURSE AND BINDER COURSE PAVEMENT:

1. Immediately prior to installing the base and/or binder course, the trimmed edges shall
be made stable and unyielding, free of loose or broken pieces and all edges shall be
thoroughly broomed clean. Contact surfaces of trench sides, curbings, manholes,
catch basins, or other appurtenant structures in the pavement shall be painted
thoroughly with a uniform coating of asphalt emulsion (tack coat), just before any
mixture 1s placed against them.

B. — Silica sand when blended with seal coat emulsion shall be No. 30 silica sand.

2.04 PAVEMENT MARKINGS:
A. Pavement markings shall conform to the requirements of NHDOT Standard Specifications
632

B. — The mixture of the marking material shall be within the composition limits for reflectorized
pavement markings as described in the NHDOT Standard Specifications as follows:

Thermoplastic reflectorized pavement markings - 632.

1.05

SUBMITTALS: IN ACCORDANCE WITH REQUIREMENTS OF GENERAL
SPECIFICATIONS, SUBMIT THE FOLLOWING:

A. Six sets of complete job mix formula shall be submitted to the Engineer at least two
weeks before any of the work of this section is to begin.

B. Delivery slips shall be furnished with each load of mix delivered to the project.
Information shall include:

Vehicle identification.

Date.

Project.

Identification of material.

Gross, tare and net weights.

Under this pavement type, the Contractor shall be responsible for removing and resetting all
curbing that is disturbed during construction to existing grades at no additional cost to the
Owner. All bituminous concrete berms disturbed during construction operations shall be
replaced at no additional cost to the Owner and shall be set to existing grades and shall
maintain proper drainage.

specification of Section 2.1.1. of the Standard Specifications of the New Hampshire
Department of Transportation.

SECTION 02745

PAVING AND RECLAMATION

PART 1 - GENERAL

1.01

1.02

1.03

WORK INCLUDED:

Furnish all labor, equipment and materials required to install bituminous concrete
pavement courses, including sidewalks, driveways, temporary and permanent trench paving
and restoration of pavement markings as shown on the Drawings and as specified herein .

RELATED WORK:

Section 01562, DUST CONTROL

Section 02300, EARTHWORK

Section 02631, PRECAST MANHOLES AND CATCH BASINS
SYSTEM DESCRIPTION:

GENERAL

12. Measurements for Payments:

Payment shall be based upon an accepted bid price agreed upon prior to the work being
performed, and each repair shall be treated as a separate bid, unless other agreements are
mutually approved prior to commencement of work.

END OF SECTION

02650A - 4