ST0004-CS01080608/06/01 MON 10:37 FAX 9727221114 ~003
QUANTUM CONTRACTING, INC.
P. O. BOX 4:~0 972-771-9511
ROCKWALL, TX 750~7 1-972-722-1114 (fax)
Fax
Ken Griffin, City Engineer
Department of Engineering
City of Coppell
P O Box 478
Coppell, TX 75019
REF: Median paving, Freeport Parkway
Bid Item I-2 of our Freeport Parkway Reconstruct Project sets up 250 SY of median
paving ~$42.00/SY for a total of $10,500.00. The scheduled repairs are shown at four
locations (M-1 through M4) and indicate replacement of 4" thick concrete that is
severely damaged at those four locations. The actual field measurement of the damaged
median totals 157 SY for a cost of $6,594.00. Please note that the repair M-4 has been
eliminated since a let turn lane is being built at this location al the expense of the Koll
Center Project now under construction. However, I have added a location at the Gateway
crossover that is also in serious need of replacement.
Median Paving damaged areas:
M-1 59 SY ~, 9
M-2 53 SY ~ ~
M-3 15 SY ~ ~c
Gateway 30 SY
157 SY
Because of the inevitability of future damage due to the heavy track traffic at the
intersections and crossovers, I recommend the installation of a monolithic median nose at
the M-3 instead of the median pavement as scheduled. This will be easier on the traffic
and stru~urally more maintainable s4_nce the median area would be poured monolithic
08/06/01 MON 10:37 FAX 9727221114 ~004
with the curb and the concrete thickness would graduate from 11" to 14" thick instead oi'
the 4" cap. The recommended procedure to install the mono median nose is as follows:
1. Sawcut and remove existing curb a~d gutter and median paving.
2. Excavate 6" below subgrade and install 6" of C.T.B. or lime stabilization.
3. Pour reinforced concrete median nose to replace $" pavement and 6" curb.
The following prices are submitted ibr your consideration as a umt pr/cc to repair and
remove each median nose:
A. FuR-width median nose (+/-14') $2,200.00
B. Turn lane median nose (+/-4') 900.00
A detail of the turn lane median nose as approved for the Koll Center Project is attached.
The full-width nose would be along the same design only wider. Median nose work
would have to be done aider all north and southbound lane repairs have been completed
and open to trsf~e. Local barricading would be required to move traffic toward the
outside lanes since portions of both inside lanes would be removed,
In addition ~o the replacement at the M-3 location, I recommend that the crossovers at
Gateway and Fritz as well as the mm lane at Airline be considered for replacement at this
time.
05/06/01 i~ON 10:38 FAX 9727221114 ~]005
,
'-' ~ ~' PLAN
'., ~ SECTION A-I
. .,.d--~5 STIRRUP BARS
PAYMENT
REINF BARS
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SEC~ON B-B
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MEDMN END DETAIL