Finance Committee

ITEM 604.46 —- REPLACE CASTING

A. SCOPE

This work consists of replacing triangular, recessed, small diameter, and broken manhole frames
and covers, and catch basin frames and grates as shown on the drawings or as directed by the
Engineer. Any repair needed to the existing structure within the 12 inches below the bottom of
the casting shall be included and performed under this item. Any further repair needed to the
existing structure shall be performed under Item 604.4.

B. MATERIALS AND CONSTRUCTION

C. MEASUREMENT AND PAYMENT
Payment for Adjusting to Grade Existing Castings shall be at the contract unit price specified for

each. This payment shall include all materials, labor, equipment, and all else needed to complete
the work under this item.

Contractor shall record the number and location of castings adjusted for each street. Payment is
contingent upon submittal of quantities in a per structure, and per street format.

Page 20 of 42

ITEM 604.45 - ADJUSTING TO GRADE EXISTING CASTINGS
A. SCOPE

This work consists of adjusting castings to the new final pavement surface elevation. Any repair
needed to the existing structure within the 12 inches below the bottom of casting shall be
included and performed under this item. Any further repair needed to the existing structure shall
be performed and paid under Item 604.4 Repair of Existing Structures.

B. MATERIALS AND CONSTRUCTION

Contractor shall record the vertical feet of repair completed for each structure as identified by
Nashua’s GIS naming system, and the total vertical feet of repair for each street. Payment is
contingent upon submittal of quantities in a per structure, and per street format.

Page 18 of 42

ITEM 604.4 - REPAIR OF EXISTING STRUCTURES
A. SCOPE

This work consists of repairing existing structures below 12” from the bottom of existing casting
frame.

B. MATERIALS AND CONSTRUCTION

The contractor shall include all labor, materials, equipment, and transportation necessary to
repair existing structures other than within the top 12 inches below the bottom of casting frame.
Repairs in that section shall not be paid under this item.

Technical Specifications — 2021 Paving Program Residential Roadways

Leaching Catch Basin Detail

SINGLE GRATE - 24° » 24° OPENING
DOUBLE GRATE - 24" « 40" OPENING

TOP SLAB [H-20 LOADING)

EE SPI FILTER FABRIC
| A SSS (MIRAF) 140M OR
A “ APPROVED EQUAL}

i CRUSHED STONE (COURSE)

NHOOT ITEM 204.6
[MIN

PERFORATION (TYP)
12 OF BOTH WAYS

1. BASE SHALL BE SOLID, SEDIMENT SHALL BE
REMOVED ON 4, REGULAR SCHEDULED BASIS
BY OVINER.

ITEM 604.124 - CATCH BASIN

A. SCOPE

This work includes furnishing and installing a catch basin at locations shown on the plans or as
directed by the Engineer.

B. MATERIALS AND CONSTRUCTION

ITEM 603.82212 —- 12” POLYETHYLENE PIPE (TYPE S)

A.

SCOPE

This work shall consist of furnishing and installing polyethylene (PE) pipe type S, at the
locations shown on the plans or as ordered by the Engineer.

MATERIALS AND CONSTRUCTION

C. MEASUREMENT AND PAYMENT

The accepted quantities of Cold Planing Transitions will be paid for by the Square Yard
measured in the field and approved by the Engineer. Contractor shall record the square yards of
cold planed transitions for each street. Payment is contingent upon submittal of quantities in a
per street format. This payment shall also include all materials, labor, equipment, and all else
needed to complete the work under this item.

Page 13 of 42

ITEM 417.20- COLD PLANING TRANSITIONS
A. SCOPE

This work shall consist of the removal of existing bituminous pavement the depth and limits
shown on the plans or as directed by the Engineer. Cold planning transitions are required to tie in
overlays with existing pavement.

For roadways which are being reclaimed this item shall only be used to pay for cold planing at
driveway tie-ins as directed by the Engineer.