Hidden Valley-CS041128Bob Benes
134 Sandy Oak Ln.
Coppell, Tx 75019
(972)393-5897
28 November 2004
Keith R. Marvin, P.E.
City of Coppell
255 Parkway
P.O. Box 9478
Coppell, Tx 75019
(972)304-7044
RE: Hidden Valley Estates
Prior to the 18th of November 2004, the only information that I had on the excavation and
subsequent retaining wall behind my property was rumor, hearsay, and speculation. Once the
depth of the excavation got to 7-8 feet deep behind my property, I became concerned.
I have since employed Mr. Gregory H. Wilson Engineering, Inc. to do a structural assessment
of my property. I am enclosing a copy of his report which also includes a recommendation for
the retaining wall that should be put in place.
I met with Mr. Street and the engineering finn managing the work on Tuesday, 23 November
2004. At that time, they mentioned that the retaining would be redesigned.
My concerns currently are the long term affects on my property and I do appreciate your
attention to this matter. I would be happy to answer any questions that may arise and look
forward to working with your representatives.
Sincerely,
cc: James Street (Street Custom Homes, 1660 S. Stemmons Frwy, Suite 29~
Lewisville, TX 75067)
GREGORY H. WILSON ENGINEERING, INC.
2301 OHiO DRIVE, NO. 220
PLANO, TEXAS 75093
(972) 596-9265
22 November 2004
TO ALL INTERESTED PARTIES:
Re: Residence located at 134 SANDY OAK LANE, COPPELL, TEXAS
My previous inspection report dated 19 May 1997
This is to document that I have, on this date, made an on-site inspection of the
foundation only for the above residence. This inspection does not include framing, roof
or drainage, unless specified.
This foundation is a reinforced concrete slab and grade beam type, poured
integrally. It appears to be of good design and construction. For orientation
purposes, the house faces North.
Mortar lines are straight; there are mortar cracks over the garage door and a
1/8 inch separation between brick and one garage door frame; frieze boards
are in place; there are no separations between brick and door or window
frames.
Inside the house, in the dining room, a tension crack over the kitchen door;
repaired crack in the corner or the ceiling and over doors. In the kitchen, a
seam crack in the ceiling. In the utility room, seam cracks in the ceiling. In the
master bedroom, a seam crack in the ceiling. In the living room, a separation in
a corner; hairline tension cracks in the floor. In the garage, seam cracks in the
ceiling.
4. Interior and exterior doors are aligned with their frames.
Floors checked to be level within acceptable tolerances as required by the ACI
318 Standard.
See Page 2
Page 2, Foundation inspection, 134 SANDY OAK LANE, COPPELL, TEXAS, con't
CONCLUSION:
Previous correction work has been done on this foundation by
LONGHORN FOUNDATION COMPANY of Dallas, Texas. Two (2)
piers were installed at the garage area as noted in my previous
report, this work is holding well. With proper maintenance,
foundation movements can be held to a minimum. This inspection
is visual only and is limited to what was observed at the time of
the inspection. No warranty is expressed or implied as to the
future performance of this foundation. No floor elevations were
taken as there is no elevation survey to indicate how the
foundation was constructed. The attached maintenance
procedure should be followed at all times.
NOTE: At the back of the house, dirt is being excavated for another addition to this
subdivision and has been excavated approximately in a depth of 10 feet at the back
property line. I have been informed by the owner that the builder of this addition
intends to install a concrete or brick wall in this area to resist the force from dirt at
the back yard. In my opinion, this will not work and the recommendations made in this
report should be followed.
RECOMMENDATION:
At the South side where adjacent property has been lowered, install a reinforced
concrete wall at least 8 inches thick and to the top of the existing grade at this
property, properly reinforced, and further secured with A.B. CHANCE Helical anchors
as shown on attached sketch.
As an alternate, steel pilings could be used.
GREGORY H. WILSON, INC.
GREGORY H. WILSON ENGINEERING, INC.
2301 OHIO DRIVE, NO. 220
PLANO, TEXAS 75093
(972) 596-9265
£o~uc/e6~f~- la~.~-
RECOmmENDED WALL TO PREVENT SOIL EROSION AT
A~
134 S~DY OAK LANE, COPPELL, TEXAS
no scale 11-22-04 GHW