ST0301A-CS110128 (3)
(8/12/2011) Keith Marvin - Bethel Road Sod QuantityPage 1
From: Keith Marvin
To:deand@JRJPaving.com; Martym@JRJPaving.com
CC:Davis, Larry; Thornhill, Caleb
Date: 1/28/2011 1:35 PM
Subject: Bethel Road Sod Quantity
Dean,
I have reviewed the materials you have submitted for sod calculations. As you know, this item was listed in the
specifications as a "Plans Quantity" item. Section 1-14 of the contract indicates in bold underlined print "If an item is noted
as a 'Plans Quantity' then only the quantity shown in the unit bid price schedule will be paid."
These items are essentially lump sum items with an estimated quantity provided. The city does this in order to protect
ourselves from quantity over-run when a contractor disturbs area beyond what is required for the project.
In the case of this project, the scope of the project was changed through the issuance of four change orders. Each of
these changes impacted the area that was disturbed, and as such could have included an increase in sod quantity. In
reviewing these changes, I propose the following adjustment to the "Plan Quantity". If you are in agreement, please reflect
this new total on your next pay request.
Original Sod Quantity: 2,225 SY
Remove driveway on Denton Tap - (34*4.5)/9 = 17 SY
Eliminate storm connection in Denton Tap - (27*9)/9 = 27 SY
Rework Paving at Chateaus Drive = 127 SY
Install Drainage pipe & Inlets between Armstrong & Bridge - (8*120)/9 = 107 SY
Install Aerial Crossing - (15*140)/9 = 234 SY
Remove additional 24" ADS Pipe - (10*400)/9 = 445 SY
Install Inlet at Penfolds - (7*24)/9 = 19 SY
Elimination of 165 CY concrete rip-rap ((165*27)*5/12)/9 = 207 SY
Total expected disturbed area beginning with plan quantity and adding all project changes is 3,408.
It is the opinion of the City of Coppell that any disturbed area greater than this was disturbed for the convenience of the
contractor for use in staging of materials and equipment. The contractor bears responsibility for the cost of reestablishing
turf in these areas.
Keith Marvin, P.E.
Project Engineer
(972) 304-3681