ST9704-CS000322 COPY
Coppell, Texas 75019
972-462-0022
COPPELL, TEXAS 75019
March 22, 2000
Buddy EchoIs, Superintendera
Coppell Independem School District
200 S. Denton Tap Road
Coppell, Texas 75019
RE: 2nd Access to High School/Town Center Drive ST 97-04
Dear Mr. EchoIs:
On June 8, 1999 City Council approved a change order to our Demon Tap Road project to allow
for the construction of a 2"a access to the high school. Due to right-of-way acquisition and
scheduling issues with the contractor, work is just now commencing on the project. Based on
prior meetings between the City of Coppell and the CISD there were cost participation
commitments made by both entities to bring about the construction of the 2~ access to the high
school. My understanding of those cost commitments was that the City of Coppell would pay
60% of the cost of the roadway from Sonic to the CISD property. The CISD would pay 40% of
the cost of the roadway from Sonic to the CISD property and 100% of the cost across the CISD
property. The length of the roadway is 909 linear feet. Of that total length, 204 linear feet is on
the CISD property and 705 linear feet is between Sonic and the CISD property.
The total cost to construct the roadway is $230,520. This cost exceeds the original estimate
largely due to three factors 1) the need for a retaining wall along the north edge of the roadway;
(This need was identified during public hearings in that the residents along the south side were
very concerned about vehicles going out of control and crashing through the existing brick
screening wall. As I am sure you are aware several vehicles have crashed through the brick
screening wall that currently separates Humington Ridge from Coppell High School); 2) the
installation of speed humps to reduce the speed of vehicles; and 3) the need for additional
stacking length in Denton Tap for the turn lane to access the roadway.
If the City were to stricdy follow the agreed upon cost participation, then the City of Coppell
would be responsible for 60% of 705 linear feet of the construction or 46.54% of the entire cost
of the project (60% x 705 + 909=46.54%). The school then would be responsible for 53.46%
of the project (40% x 705 + 909 + 100% x 204 + 909=53.46%). If you utilize those
percentages, the City's cost would be $107,284 and the CISD's cost would be $123,236.
However, in reviewing my initial notes concerning the cost participation from 1997, the three
aforementioned items i.e., retaining wall, road humps & left turn lane were not addressed in the
original cost estimations. Therefore, I have reevaluated the cost to construct the roadway and
eliminated the following items:
Road humps - $19,000
Retaining wall - $36,040
Left turn lane - $8,118
Adjustment of sanitary sewer manholes - $1,000
Schedule 40 PVC conduit for irrigation - $360
Total $64,518
When those items are removed from the total cost of the construction there is $166,002 to be cost
participated jointly between the City of Coppell and the CISD ($230,520 - 64,518 = $166,002).
Using the adjusted cost of the roadway, the City of Coppell participation for the 60% from Sonic
to the CISD property is $77,257 (46.54% x $166,002). The CISD's cost for the 40% from Sonic
to CISD property and the 100% that is on the CISD property is $88,745 (53.46% x $166,002).
It should be noted that the total cost of the access to the high school including the extension of the
left turn lanes, road humps, retaining walls, and traffic lights is $323,680. Of that total project
cost, the CISD is only being asked to participate in the amount of $88,745. The City of
Coppell's cost of the total project is $234,935.33. Based on the total project cost and total CISD
participation, the City is only asking for sligh~y more than 25 % of the total project cost from the
CISD. Because this project has now begun and hopefully will be completed within two to three
months, the city of Coppell is requesting that the CISD provide a check in the amount of $88,745
for its share of the cost of the 2"a access to the high school.
If you should have any questions or need any additional clarification or information please feel
free to contact me at your convenience.
Sincerely,
Kenneth M. Griffin, P.E.
Director of Engineering and Public Works
cc: Jim Witt, City Manager
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