ST9902-CS111108 T H E • C 1 T Y • O F
COPPELL
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X A S ' I
MEMORANDUM
TO: Mayor and City Council
VIA: Kenneth M. Griffin, P.E., Director of Engineering/Public Works
FROM: Keith R. Marvin, P.E., Project Engineer P �'' `� °�' (I - '^O''J -t°
DATE: November 8, 2011
RE: Discussion seeking direction on proposed options to facilitate Oncor
Utility relocations along Sandy Lake Road.
The Engineering Department has been working with Oncor on the relocation of their
overhead distribution lines along the north side of Sandy Lake Road since we completed
right of way acquisition earlier this year. The entire distribution line from the west edge
of the Weichert Realtors to North Coppell Road will be relocated approximately 25 feet
further to the north.
After completing their preliminary design, Oncor staked the proposed pole line, and the
city contracted for the removal of the trees within the corridor that were in conflict with
our proposed improvements between Denton Tap and South Coppell Road. After our
removal, it became apparent that Oncor would need to trim additional tree limbs in order
to keep the required clearance from their power lines. Approximately 8 feet of their
required clearance is located outside the city right of way, and as such they have been
actively negotiating with property owners for aerial trimming rights.
The reason we are in front of you now is that Oncor has been unsuccessful in acquiring
all the rights they need, and we have received a petition to preserve some trees that will
be severely impacted by the relocation of the overhead power lines.
The attached exhibit shows three options for dealing with the area between the Weichert
Realtors and the property west of the Summer Place Subdivision.
Option 1: The city pays nothing, and Oncor moves the lines where they can. This
involves Oncor securing tree trimming agreements from those properties that have trees
and/or limbs that would be within 10 feet of the right of way. If Oncor is unable to
negotiate for these rights, they will bury portions of the line at their expense. At this time
they have secured rights at all but the Lawson, Mills, Whatley, and Keeping properties.
Oncor is working with Mr. Whatley, and it's their opinion they will be able to come to an
agreement. They have resigned themselves to burying the lines in front of Mills and
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Lawson, and they are not making much progress with Mr. Keeping. This option will trim
the 5 large pecan trees in front of Summer Place to such an extent that they will loose
most of their benefit.
Option 2: This option takes advantage of Oncor's decision to bury in front of Mills and
Lawson, and extends the burial to Mr. Keeping's western property line. This would retain
the aerial from the Weichert Realtors to the west side of Oak Trail where it would go
underground, and remain buried through the Keeping property where it would go
overhead again for the remainder of the project length. Oncor is willing to participate in y -
the cost of this option, and they have calculated the city cost at $77,546.14. In addition to 3 - lo
the monetary cost they would ask us to assist with securing two 20'x20' easements to b _ z 000
accommodate necessary switchgear. One easement would be on the Whatley property, -6/4
and one on the Keefpgroperty.
Option 3: This option is to bury the overhead lines from the Weichert Realtors to the
west side of the Keeping property. This option will require three 20'x20' switchgear I 0 7 3 svow
easements and two 10'x10' transformer easements. The city will be responsible for
acquiring these easements. The city cost is estimated to be $500,000, including credit for
the cost of moving poles, and the cost of the burial between Lawson and Mills.
The second exhibit shows some current photographs of the area. Two of the large pecan
trees will likely be removed during the road construction project. Two of the pictures
show stakes representing proposed pole locations between the trees and the existing
Summer Place screening wall.
Under all the options discussed, the line continuing west to North Coppell Road will
remain aerial. All necessary rights have been acquired by Oncor for this work.
One statement that was made in the petition that was sent to Oncor and copied to the City
was that the city had buried the Oncor power lines in front of the Sprouts complex that
lies between the Weichert Realtors and Denton Tap Road. This is not an accurate
statement. This line goes under Sandy Lake Road, and rises again to pass through the
Verizon facility located on the south side of Sandy Lake Road. The Sprouts facility is
fed by an aerial cable from Denton Tap along the north side of their building.
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