Ordinance No. 1,544ORDINANCE NO.1544
AN ORDINANCE OF THE CITY COUNCIL OF THE CITYOF BAYTOWN,TEXAS,
AUTHORIZING A CHANGE ORDER TO CONTRACT NO.5,JOB NO.44A,UPPER
GOOSE CREEK INTERCEPTOR SEWER CONTRACT WITH STEPHENS CONTRACTING
COMPANY AND PROVIDING THE EFFECTIVE DATE HEREOF.
BEIT ORDAINED BY THE CITY COUNCIL OF THE CITY OF BAYTOWN,TEXAS:
Section 1:That the City Council does hereby authorize a change order to
the contractwith Stephens Contracting Company,Contract No.5,Job No.44A,
Upper Goose Creek Interceptor SewerContract,a copyof said changeorder at
tachedhereto,marked Exhibit "A",and made a part hereof for all intents and
purposes.
Section 2:This ordinance shall take effect from and after the date of its
passage by an affirmative vote of the City Council of the City of Baytown.
INTRODUCED,READ and PASSED by an affirmative voteof a majority of the
City Council of the City of Baytown this14th day of February 1974.
■JT>1*L.
TOMGENTRY,Mayor
ATTEST:
EDNA OLIVER,City Clerk
APPROVED:
NEEL RICHARDSON,City Attorney
EXHIBIT "A"
CHANGE ORDER NO.1
February 8,1974
City of Baytown
P.0.Box 424
Baytown,Texas77520
Subject;Request for Approval of Pateson Labor,and/or
Equipment for alternate location of 27-inch
sanitary sewer.WPC-Tex-874.
Contractor:Stephens Contracting Co.
Contract Dated:June 7,1973
Original Contract Amount:$481,419.00
Project:Construction of Upper Goose Creek Interceptor Sewer
in Baytown,Harris County,Texas,Job No.44A,
Contract No.5
Dear Sir:
Unstable soil conditions on the subject project have caused
problems in constructing the 27-inch sanitary sewer across a
portion of the easement on the Gulf Coast Hospital site.The
contractor has attempted several times to construct thesewer,
but each time fluid soil conditions have caused the pipe and
bedding material in the bottom of the trench to be pushed
upward by the weight of the soilon each side of the trench.
Special construction techniques must be employed to resist
the unusual up-thrust forces encountered at this location.
Subsequent soil borings indicate that this unstable soil con
dition will be encountered along the original route of the
sewer from the existing end of pipe laying operations to the
vicinity of Manhole No.7.See the attached drawing #CO-1-1.
It would be very costly to use the special construction
techniques for this entire length.
However,these additional soils borings also indicate that an
f
I
1.
<#v 'i
CHANGE ORDER NO.1 -Cont'd
Job No.44A,Contract No.5 -2-
alternate route is available which has much less unstable soil.
See drawing #CO-1-1 for alternate location.Where unstable
soil is encountered we recommend using the special construction
as described in the following:
1.There is enough available head to construct the
alternate route with 24-inch sewer at a 0.26%slope
which is the capacity equivalent ofthe 27-inch at
0.14%slope.
2.Use 24-inch ductile iron pipe,Class IV,installed
on timber bents as required to resist up-lift.
(27-inch ductile iron is not available)See attached
drawing CO-1-2 for details of timber bent.
3.Since it would be easier to connect the 24-inch
ductile iron to 24-inch concrete pipe in lieu of
27-inch,we suggest using 24-inch concrete pipe paid
at 27-inch pipe price.
4.The timber bents shall be paid at the contracted
timber price and a quantity of 31.5 Mfbm per bent.
The estimated quantities of work to be deducted from the contract
are as follows:
Approx.Unit
Item Description Quantity Price Extension
1.27ft Cone,Less than 101
2.27"Cone.,1O'-12'
3.27"Cone.,12f1014'
4.Std.M.H.
5.Extra Depth M.H.(8-121)
6.Extra Depth M.H.(12'+)
7.Timber Ordered
8.Shell Bedding
9.Cement Stab.Sand Backfill 25 C.Y.
Total
50
40
335
1
4
2
64
200
1 25
L.F.
L.F.
L.F.
Ea.
V.F.
V.F.
MFBM
C.Y.
C.Y.
$24.40
25.50
26.60
370.00
80.00
90.00
40.00
9.00
22.00
$
■$
1,220.00
1,020.00
8,911.00
370.00
320.00
180.00
2,560.00
1,800.00
550.00
16,931.00
r
CHANGE ORDER NO.1 -Confl,Job No.44A,Contract No?5 -3-
The estimated quantities n*are as follows?tl&S °f Wor*to be added to the contract
Item Description
1
2,
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
24"D.I.
?i,"2-1'A11"cuts?!n°nc'C12-14')llu Cone.(14-16');?!S°nc'C16-18')24"Cone.(18'+)
Timber Bents
M.H.
Extra (8-12')DepthExtra(12'+)
Shell Bedding
Concrete Encasing
RECOMMENDED FOR APPROVAL:
LANGFORD ENGINEERING,INC.
.;:«•McDaniel,P.eTVicePresident
Approx.
Quantity
100
100
70
106
82
48
252
3
12
10
25
35
L.F.
L.F.
L.F.
L.F.
L.F.
L.F.
MFBM
Ea.
V.F.
V.F.
C.Y.
C.Y.
Unit
Price
^■
$51
51
26
27
35
38,
40,
370.
80.
90.
9.
270.
.00
.00
.60
.10
.40
.80
.00
00
00
00
00
00
Total ---_._._
Extension
$5,100.00
5,100.00
1,862.00
2,872.60
2,902.80
1,862.40
10,080.00
1,110.00
960.00
900.00
225.00
9,450.00
""-$42,
AGREED:
STEPHENS CONTRACTING CO,
APPROVED:
CITY OF BAYTOWN,TEXAS
By:
•ritz Lanhar
City Manager
DATE:
RWM:jlp
Date:
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