20180538 Ver 1_channel substrate material_20180425

Carpenter,Kristi
From:Barnett, Kevin
Sent:Monday, April 23, 2018 3:51 PM
To:[e-mail]
Subject:Fwd: RE: 20180538. Cherokee County, B163 bridge
replacement Add info request
Attachments:channel substrate material.pdf
Kristi,

I am out of the office. Could you please add this response to laserfiche?

Thanks,
Kevin
---------- Forwarded message ----------
From: "Breedlove, Patrick J" <[e-mail]>
Date: Apr 19, 2018 7:59 AM
Subject: RE: 20180538. Cherokee County, B163 bridge replacement Add info request
To: "Barnett, Kevin" <[e-mail]>
Cc: "McHenry, David G" <[e-mail]>

Good Morning Kevin,

I don’t know if you are able to view the project cover letter in the submittal
attachments, but it details bypass pipe. The bypass pipe will be 44’ Long X 60” Diameter
double barrel reinforced concrete pipe structure. Native materials will be excavated
from bypass site and saved until the bypass structures are removed and native materials
will be replaced. Since the bridge structure is transitioning from a bridge to a box
culvert, additional native material will be needed. Dave and I have discussed this
ongoing issue with the NCDOT contracts folks. There is a special provision now for native
material sizing and payment for projects. I have attached this new special provision that
are to be in contracts needing native channel substrate material. If you have any other
question please let me know. Apologies for any confusion. Hope this helps.

Thanks,

Patrick

From: Barnett, Kevin
Sent: Wednesday, April 18, 2018 4:24 PM
To: Breedlove, Patrick J <[e-mail]>
Cc: McHenry, David G <[e-mail]>; Carpenter,Kristi
<[e-mail]>
Subject: 20180538. Cherokee County, B163 bridge replacement Add info request

Good Afternoon Patrick:

In order for the DWR to further process your application, we require clairification on a
couple items.
1

1. Item 4g discusses the bypass pipe. Please clarify the size of bypass pipe to be
utilized.
2. Item 4g discusses the use of culvert “backfill material”. Please clarify that
excavated stream substrate, or natural river stone sources from off-site will be
utili9zed.

We look forward to your response.

Best regards,
Kevin

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parties.
2

CHANNEL SUBSTRATE MATERIAL
Description
(SPECIAL)
The work covered by this section consists of the furnishing, stockpiling, placing, and maintaining
an approved stone to be utilized to construct streambank protection devices in and along the stream
and at other locations designated in the plans or as directed.
The quantity of channel substrate material to be installed will be affected by the actual conditions
that occur during the construction of the project. The quantity of channel substrate material may
be increased, decreased, or eliminated entirely as directed. Such variations in quantity will not be
considered as alterations in the details of construction or a change in the character of the work.
Materials
Channel Substrate Material shall consist of natural field stone or natural river rock. Crushed stone
from a quarrv will not be permitted. The channel substrate material shall be sound, tough, dense,
resistant to the action of air and water, and suitable in all respects for the purpose intended. Channel
Substrate Material may contain small amounts of fine aggregate but shall contain no amounts of
soil material.
All channel substrate material shall meet the approval of the Engineer. While no specific gradation
is required, the various sizes of the stone shall be equally distributed within the required size range.
The size of an individual stone particle will be determined by measuring its diameter across the
intermediate axis.
Channel Substrate Material shall be a mixture containing approximately the following size
distribution:
50% Gravel - 0.12 to 3 inch diameter
50% Stone - 3 to 12 inch diameter
No more than 60% of the material furnished can be gravel material and no mare than 75% of the
material furnished can be stone material.
Measurement and Payment
The quantity of channel substrate material to be paid far will be the actual number of tons of
channel substrate material that has been incorporated into the work, or has been delivered to and
stockpiled on the project as directed. Material that has been stockpiled will not be measured a
second time. The channel substrate material will be measured by being weighed in trucks on
certified platform scales or other certified weighing devices.
Such price and payment will be full compensation for all work covered by this special provision,
including but not limited to furnishing, weighing, stockpiling, re-handling, placing, maintaining
material, and disposal of any material not incorporated into the project.
Payment will be made under:
Pay Item
Channel Substrate Material
17
Pay Unit
Tons