ST9401WA-CS 951108 WIER & ASSOCIATES, INC.
ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST
DATE: November 8, 1995
CLIENT:
PROJECT: Denton Tap Road
JOB NO.: 94-093
ITEM I
NO. DESCRIPTION OF ITEM
BELOW GRADE CROSSING
1 Abandon 8" W.L. North of Parkway
2 Dry Connection to End Exist. 16" W.L.
3 16" W.L.
4 16" W.L. Creek Crossing Below Grade
5 12" W.L.
6 Air Release Valves
7 16"G.V.
8 12"G.V.
9 6"G.V.&F.H.
10 Exist. F.H. Relocation
11 Fittings
Subtotal
TOTAL UNIT
QUANTITY UNIT PRICE
1
2
2,710
1
250
2
5
3
9
2
2
LS 1,200.00
LS 500.00
~Y'L,F, 40.00
LS 35,000.00
LF 32.00
EA 1,800.00
EA 2,000.00
EA 1,200.00
EA 2,000.00
EA 1,800.00
TON 2,800.00
$
$
$
$
$
$
$
$
$
$
$
COST
1,200.00
1,000.00
108,400.00
35,000.00
8,000.00
3,600.00
10,000.00
3,600.00
18,000.00
3,600.00
5,600.00
198,000.00
10% Contingency
Total
$
$
19,800.00
217,800.00
Since the design professional has no control over the cost of labor,
materials. or equipment. or over the contractor's method of determining
prices. or over competitive bidding or market conditions, his opinions of
probable construction cost provided for herein are to be made on the
basis of his experience and qualifications. These opinions represent
his best judgment as a design professional familiar with the construc-
tion industry. However, the design professional cannot and does not
uarantee that proposals, bids, or the construction cost will not vary
~lrom opinions of probable cost prepared by him. If the owner wishes
greater assurance as to the construction cost, he shall employ an
independent cost estimator.
Prpd. by UTL
Chkd. by
Page 1 of 1
WIER & ASSOCIATES, INC.
ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST
DATE: November 8, 1995
CLIENT:
PROJECT: Denton Tap Road
JOB NO.: 94-093
ITEM r
NO. DESCRIPTION OF ITEM
ABOVE GRADE CROSSING
1 Abandon 8" W.L. North of Parkway
2 Dry Connection to End Exist. 16" W.L.
3 16" W.L.
4 16" W.L. Creek Crossing Above Grade
5 12" W.L.
6 Air Release Valves
7 16"G.V.
8 12"G.V.
9 6" G.V. & F.H.
10 Exist. F.H. Relocation
11 Fittings
TOTAL UNIT
QUANTITY UNIT PRICE
1
2
2,710
1
250
2
5
3
9
2
2
LS
LS
CY
LS
LF
EA
EA
EA
EA
EA
TON
1,200.00
500.00
40.00
75,000.00
32.00
I 800.00
2 000.00
I 200.00
2 000.00
1 800.00
2 800.00
COST
$ 1,200.00
$ 1,000.00
$ 108,400.00
$ 75,000.00
$ 8,000.00
$ 3,600.00
$ 10,000.00
$ 3,600.00
$ 18,000.00
$ 3,600.00
$ 5,600.00
Subtotal
10% Contingency
Total
$ 238,000.00
$ 23,800.00
$ 261,800.00
Since the design professional has no control over the cost of labor,
materials, or equipment, or over the contractor's method of determining
prices, or over competitive bidding or market conditions, his opinions of
probable constructjon cost provided for herein are to be made on the
basis of his experience and qualifications. These opinions represent
his best judgment as a design professional familiar with the construc-
tion industry. However, the design professional cannot and does not
guarantee that proposals, bids, or the construction cost will not vary
from opinions of probable cost prepared by him. If the owner wishes
greater assurance as to the construction.cost, he shall employ an
independent cost esljmator.
Prpd. by UTL
Chkd. by
Page 1 of 1
Coppell, Texas 75019
P.O. Box 478
CoppelI, Texas75019
214-462-0022
July 28, 1995
Wier and Associates, Inc.
4300 Beltway Place, Suite 130
Arlington, Texas 76018-I097
RE: Denton Tap Road ST 94-01
Dear Sir:
The City of Coppell has received and reviewed the plans Submitted for the referenced project.
I apologize in the delay in getting the plans returned with our review comments, but I have been
trying to secure funding for this project so that it can be constructed in 1996 along with the
Lewisville section and the S.H. 121 Bypass. I have also been working out the agreement with
Vista Properties on the drainage solution. Up until approximately two weeks ago it was
anticipated that this project would be funded and construction could start in 1996. However,
the Council Finance Committee has recommended that this project not be funded for construction
at this time. Therefore, it is my recommendation that we proceed with the completion of the
final construction plans and start working on any utility relocations that may be needed so that
when the project is funded we can start immediately. One item I would like to explore with you
is the possibility of breaking out the water line in Denton Tap Road as a separate project and
constructing it today. I currently have funding to do that project, but I am not sure if it would
greatly increase the cost by doing that project early. I know the proposed water line would be
constructed within future right-of-way. However, because it would be a benefit to the adjacent
properties, it is quite likely that an easement could be acquired at this time and overlaid at a
future date with right-of-way when the property is platted adjacent to Denton Tap Road. We
need to discuss the concept for breaking out the water line.
The following represents the comments associated with the construction plans:
In response to your question, the City also prefers Alignment A.
At approximately Sta. 203+00 you should begin widening the pavement with.ithree
additional feet on the outside lanes. It appears that Council is interested in having the on-
street hike and bike lane constructed. I realize that will impact the construction of the
bridge and is not what we had anticipated.
w
10.
11.
12.
13.
14.
15.
The final plans should show that all drive way entrances, street intersections, and median
noses will be required to have brick pavers.
Valves should be provided on either side of any creek crossings for the 16" water line and
also air release valves should be provided where necessary.
The future street shown at approximately Sta. 215 +00 will have a grade differential from
the proposed roadway. Will that differential prevent a safe street connection? Also, with
the proposed optional retaining wall will there be a visibility problem in the future?
On Sheet 12, will the proposed bridge rails create a visibility problem for the driveway into
Andrew Brown Park?
A driveway turnout should be provided on the east side of Denton Tap Road at the median
opening at approximately Sta. 202+66.
Water line stub outs should be provided for property that could be developed on the east
side of Denton Tap Road.
Ten foot inlets and 21" laterals should be used at all low points.
The drainage should be revised based upon the agreements being worked out between
Coppell, Vista Properties and TxDOT to route water east at Spur 533.
The future median opening shown at approximately Sta. 215 +00 shows a retaining wall on.
the west side of Denton Tap Road. Will this interfere with the future street in that location?
The median opening at approximately Sta. 220 +00 should be eliminated.
The Master Plan shows a future 12" water line proceeding west from Denton Tap Road
along the future alignment of S .H. 121 Bypass. It is anticipated that the property north of
that bypass in the City of Coppell would take water from that system. Therefore, the water
line that transitions west to east at Sta. 223 +00 should continue northward until. at least the
S.H. 121 right-of-way.
The inlet at Sta. 237 + 16 should be relocated further south so that it will not interfere with
a future curb return radius if a street is constructed at the median opening.
A banded section of brick pavers should be provided around the intersection of Highland
Drive with Denton Tap Road.
In regards to the bridge pathway shown on Page 27, please note the comment about whether
or not there will be additional bridge cost if we made both sides of the driving lanes 3,7 feet
and acquired the additional 3 feet for each side up from the proposed 16 foot bike lane on
the east side of the Denton Tap Road bridge. Continuing with the bridge pathway
comments on Page 28, please note that based upon direction from Council, we should
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