ST9401WA-CS 960126 ADDENDUM NO. 1
TO THE CONTRACT DOCUMENTS FOR
16" WATER MAIN IMPROVEMENTS IN DENTON TAP ROAD
FROM PARKWAY BOULEVARD TO S.H. 121 BYPASS
PROJECT NO. ST94-01-WA
COPPELL, TEXAS
ISSUED ON JANUARY 26, 1996
The following information shall constitute Addendum No. I to the Contract Documents as
identified above. This Addendure must be properly acknowledged by the Bidder or Contractor
in the space provided in the proposal and must also be acknowledged on the outside of the
sealed envelope containing the bid. This Addendum is a part of the Contract Documents and
will be bound into the executed Contracts. The following information shall supersede any and
all conflicting written or verbal information previously provided:
TABLE OF CONTENTS
Add to Division 1 General Requirements: Item 1.23 16" Gate Valves and Item 1.24
Sterilization and Flushing Procedure Existing 12" Water Line.
NOTICE TO BIDDERS
The bid receipt date has been changed from January 30, 1996 to February 6, 1996 at 2:00
p.m.
SECTION I - INSTRUCTIONS TO BIDDERS
1. Section 16.5: Delete "sixty" days and replace with "ninety" days.
Add Section 16.6 as follows:
The City is currently exploring options with the City of Lewisville which may eliminate
the need to extend the 12" water line and casing along the west side of Denton Tap
Road at the S.H. 121 Bypass. Should the City be successful in deleting this portion of
the work, it shall not cause adjustment in the remaining work unit prices. Also, should
deletion of the 12" pipe and casing occur, selection of the lowest responsive bid (not
withstanding award statements above) shall be based on the contract amount
excluding the deleted work.
PROPOSAL
Delete Sheets 3, 4, 5 and 9 of 12 and replace with revised sheets attached.
I of 3
WA #94-093
Addendum No. 1
January 26, 1996
GENERAL REQUIREMENTS
1. Add Item 1.23 as follows:
Item 1.23 16" Gate Valves: 16" Gate Valves shall consist of resilient seated
Metroseal 250 manufactured by U.S. Pipe and Foundry Company, or equal,
conforming to all applicable requirements of AWWA C509. The valves shall be
installed as per city standard detail for vertical valves with block, box, stem
extension (where required by depth) and concrete pad.
2. Add Item 1.24 as follows:
Item 1.24 Sterilization and Flushincl Procedure Existin.el 12" Water Line: A
portion of the existing 12" water line located on the east side of Denton Tap
Road at the S.H. 121 Bypass shall be separated from the existing water system
and connected to the proposed water line. Pdor to connecting the water lines,
the existing water line shall be flushed, sterilized, and bacteria tested. The
flushing and sterilization procedures shall be as shown on the exhibit following
this item and the instructions below:
At Point "A" instaft 2" temporary flush valve at end of 12" line and
temporarily plug. Install 2" flush valve at end of proposed 12" line
and temporarily plug line.
At Point "B' depressurfze line and sever existing 12" water line.
Install temporary plugs on ends of both lines. Install 2" flush
valves at ends of lines.
At Point ~C' close existing valve and leave valve in closed
position.
Flush and sterilize separated 12" water line using temporary hose
and flush valves at Point "A' for water source. Release water at
Point "B' and fire hydrant at Point "C". Coordinate flushing
operation with City inspection staff.
After lines are flushed sterilize lines and provide bacteria tests to
confirm line is sterilized.
PLANS
Replace Sheet 2 dated January 3, 1996 with plan sheet attached where
alignment of pipeline has been altered at North end of alignment.
w
Sheet 4 Station 7+50 W-l: Delete 16" vertical valve with bypass and provide
16" resilient seated gate valve with box, lid, stem extension and concrete pad,
Sheet 5 Station 15+10 W-l: Delete 16" vertical valve with bypass and vault and
provide 16" resilient seated gate valve with box, lid, stem extensions, blocking
and concrete pad.
2 of 3
WA #94-093
Addendum No. 1
January 26, 1996
Sheet 6 Station 18+55 W-l: Delete 16" vertical valve with bypass and vault and
provide 16" resilient seated gate valve with box, lid, stem extensions, blocking
and concrete pad.
'Sheet 7 Station 0+85.50 W-2: .Install 1" flush valve for flushing, sterilization and
pressure testing.
Sheet 8 Station 28+50 W-l: Delete 16" vertical valve with bypass and Delete
16" vertical valve with bypass and vault and provide 16" resilient seated gate
valve with box, lid, stem extensions, blocking and concrete pad.
Sheets 9 and 10: Void existing sheets and replace with sheets attached.
END OF ADDENDUM NO. I
3of3
WA #94-093
SECTION P-PROPOSAL
ITEM QUAN. UNIT
NO.
DESCRIPTION & PRICE IN WORDS
UNIT
PRICE
W&A #94-093
WATER MAIN
TOTAL
PRICE
1. I LS
2. I LS
3. 67 LF
4. 455 LF
5. 558 LF
Relieve water pressure on existing line,
remove plug and blocking and connect
to existing 16" Water Line at Parkway
Boulevard complete for the sum of
and
per Lump Sum
DOLLARS
CENTS
Relieve water pressure on existing line,
remove plug and blocking and connect
to existing 12" Water Line at S.H. 121
Bypass complete for the sum of
and
per Lump Sum
DOLLARS
CENTS
6" PVC DR-14 Water Line including
trench, embedment and backfill
complete for the sum of
and
per Linear Foot
DOLLARS
CENTS
12" PVC DR-14 Water Line in casing
Pipe, including spacers, complete in
place for the sum of
and
per Linear Foot
DOLLARS
CENTS
12" D.I. Class 250 Polywrapped Water
Line including trench, embedment and
backfill complete for the sum of
DOLLARS
and CENTS
per Linear Foot
P-3 of 12
SEGTION P - PROPOSAL
ITEM QUAN. UNIT
NO.
6. 3,117 LF
7. 6 EA
8. 7 E,A
DESCRIPTION & PRICE IN WORDS
16" D.I. Class 250 Polywrapped Water
Line including trench, embedment and
backfill complete for the sum of
DOLLARS
and CENTS
per Linear Foot
6" Gate Valve, including box and lid, box
and stem extensions, concrete pad and
blocking per City Standard SD15
complete for the sum of
DOLLARS
and CENTS
per Each
12" Gate Valve, including box and lid,
box and stem extension, concrete pad,
and blocking per City Standard SD15
complete for the sum of
DOLLARS
and CENTS
per Each
UNIT
PRICE
W&A #94-093
WATER MAIN
TOTAL
PRICE
$
P-4 of 12
SECTION P-PROPOSAL
ITEM QUAN. UNIT
NO.
DESCRIPTION & PRICE IN WORDS
UNIT
PRICE
W&A #94-093
WATER MAIN
TOTAL
PRICE
9. 4 EA
10. 3 EA
11. I EA
12. 6.2 TON
16" Vertical Resilient Seated Gate
Valve, including foundation blocking,
box, lid, stem extension, and concrete
pad complete for the sum of
DOLLARS
and CENTS
per Each
Fire Hydrant Assembly, per City
Standard SD16 including hydrant
extensions and reflective marker, set to
grade complete for the sum of
DOLLARS
and CENTS
per Each
Remove & Reset existing Fire Hydrant
Assembly, per City Standard SD16
including hydrant extensions, paint, set
to grade at Water Line Station 11 +30,
complete for the sum of
DOLLARS
and CENTS
per Each
Cast Iron Fittings, complete in place
including polywrap, blocking, and
accessories complete for the sum of
DOLLARS
and CENTS
per Ton
P-5 of 12
SECTION P - PROPOSAL
ITEM QUAN. UNIT
NO.
25. 0.30 AC
26. 0,60 AC
27. 3,209 LF
28. I EA
29. 3 EA
30. 455 LF
DESCRIPTION & PRICE IN WORDS
Hydromulch Seeding of area disturbed by
construction within city park at the bridge
embankments and other areas indicated on
the plans complete for the sum of
DOLLARS
and CENTS
per Acre
Broadcast Seeding of areas disturbed by
construction excluding Hydremulch seeded
areas complete for the sum of
DOLLARS
and CENTS
per Acre
Provide Trench Excavation Safety -
Protection in accordance with the Trench
Safety Plans and OSHA regulations
complete for the sum of
DOLLARS
and CENTS
per Linear Foot
1" Flush Valve for flushing & sterilization,
complete in place for the sum of
DOLLARS
and CENTS
per Each
2" Flush Valve for flushing & sterilization,
complete in place for the sum of
DOLLARS
and CENTS
per Each
Minimum 21" Steel Casing Pipe (1/4") or
Class III Reinforced Concrete Pipe Casing
including trench and backfill, complete in
place for the sum of
DOLLARS
and CENTS
per Linear Foot
TOTAL BID
UNIT
PRICE
W&A #94-093
WATER MAIN
TOTAL
PRICE
$
P-9 of 12
SCALE:
POINT B
DEPRESSURIZE EXISTING 12 ' W.L.
SEVERE EXISTING 12 · W.L. 8 PLUG
BOTH ENDS. INSTALL 2' FLUSH
. PROPOSED
PROPOSED WATER LINE
WATER LINE W-I ~
W-;~ ""X-
__ Ex,s'r.~o'.w~ .__ ____.__----- Y".~x-~-~'r;~-.?-:°'w-T..~.-TLT--
---- #' "/· XIST. 24'RCP CASING-.)` '_'~" '_'~"_ __.___,(-Z-_._EXIS . 12 W
TO GENERAL CONDITION ..~ /
ITEM 1.24 FOR PROCEDURE ~
FOR FLUSHING 8,
ST~.,.,Z~T,O.. ~1~1'~'@~"i'~ ~@~X)
VALVE FOR FLUSHING LINE.
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01-24-96
EXHBITI~
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