To:
From:
Re:
H. Motion:
Attachment:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: March 25, 2021
Daniel Hudson, P.E., City Engineer
Engineering Department
Paving Program - Asphalt Testing
To approve a change order to the asphalt testing contract with 8.W. Cole Engineering, Inc.
of Londonderry, NH in the amount of $100,500. Funding will be through: Department:
160 Admin/Engineering; Fund: Bond; Activity: Paving.
Asphalt Testing Schedule of Values
Approximately 23 miles of roadways will be paved this year as part of the annual paving
program, including placement of approximately 66,150 tons of hot mix asphalt. The testing
services verify that all of the technical specification and quality requirements are being
achieved.
S.W. Cole will provide full time plant inspection, field density testing, concrete inspection,
and laboratory analysis. The plant inspection includes gradation analysis and binder content
of the hot mix asphalt to ensure the approved mix designs are being followed. The field
density testing will be utilized on reclaimed roads to verify that the contractor is achieving
the required relative compaction of the base material. The concrete inspection will confirm
that the material delivered for ADA ramp work meets the required specifications. The
laboratory analysis will test asphalt for compaction and concrete for strength.
S.W. Cole has successfully served the City as its asphalt testing firm over the last several
years, have the experience and staff to fulfill the City’s testing needs, and have agreed to
hold their pricing from last year.
