VIA OVERNIGHT DELIVERY February 28, 2017 Contract No. T201580202.01 Jenny Run Stream Restoration New Castle County Ladies and Gentlemen: Enclosed is Addendum No. 1 for the referenced contract consisting of the following: 1. The date for the receipt of bids has been moved to Tuesday, March 7, 2017 , at 2:00 p.m. 2. The Bid Proposal Cover, revised, to be substituted for the same page in the Proposal. 3. Three (3) pages, Plan Sheets 8, 20 and 22 have been revised, to be substituted for the same pages in the Proposal 4. Three (3) pages, Bid Proposal Forms, pages 1, 4 and 5 revised, to be substituted for the same pages in the Proposal. Item Numbers 209006, 907011 and 909006, have quantity changes. 5. Expedite File Disc, Amendments No. 1. Please note the revisions listed above and submit your bid based upon this information. Sincerely, ~signature on file~ Robert A. Kovacs Competitively Bid Contracts Coordinator (302) 760-2030
Transcript
VIA OVERNIGHT DELIVERY
February 28, 2017Contract No. T201580202.01 Jenny Run Stream Restoration New Castle County
Ladies and Gentlemen:
Enclosed is Addendum No. 1 for the referenced contract consisting of the following:
1. The date for the receipt of bids has been moved to Tuesday, March 7, 2017, at 2:00 p.m.
2. The Bid Proposal Cover, revised, to be substituted for the same page in the Proposal.
3. Three (3) pages, Plan Sheets 8, 20 and 22 have been revised, to be substituted for the same pages in the Proposal
4. Three (3) pages, Bid Proposal Forms, pages 1, 4 and 5 revised, to be substituted for the same pages in the Proposal. Item Numbers 209006, 907011 and 909006, have quantity changes.
5. Expedite File Disc, Amendments No. 1.
Please note the revisions listed above and submit your bid based upon this information.
Sincerely,
~signature on file~
Robert A. Kovacs Competitively Bid Contracts Coordinator (302) 760-2030
STATE OF DELAWARE
DEPARTMENT OF TRANSPORTATION
BID PROPOSAL
for
CONTRACT T201580202.01
JENNY RUN STREAM RESTORATION
NEW CASTLE COUNTY
ADVERTISEMENT DATE: January 30, 2017
COMPLETION TIME: 104 Calendar Days
SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTIONDELAWARE DEPARTMENT OF TRANSPORTATION
AUGUST 2001
Bids will be received in the Bidder's Room at the Delaware Department of Transportation's AdministrationBuilding, 800 Bay Road, Dover, Delaware until 2:00 P.M. local time February 28, 2017 March 7, 2017
Addendum No. 1 February 28, 2017
D.I.
24"
CO
NC
36" CONC
EXISTING PERMANENT EASEMENT
EXISTING PERMANENT EASEMENT
EXISTING UTILITY EASEMENT
DEPARTMENT OF TRANSPORTATIONDELAWARE
TOTAL SHTS.
SHEET NO.CONTRACT
COUNTYDESIGNED BY:
CHECKED BY:
ADDENDUMS / REVISIONS
NEW CASTLE
SHEET TITLE
KHK
24
T201580202
JMLAT JENNY RUNOUTFALL CHANNEL
STABILIZATION OF SWM
DP-E-OH
DP-E-OHDP-E-OH
DP-
E-
OH
DP-
E-
OH
DP-E
FO-
OH
FO-
OH
DP-G
DP-G
DP-G
EX-SIG
EX-SIG
NCC-S
NC
C-S
NC
C-S
0+00
0+50
1+001+50
2+002+50
SCALE
FEET
0 10 20 30
N
8
T:\
17
32
30
A-
DE
LD
OT
ST
OR
MW
AT
ER
RE
TR
OFIT\
4.2 - JE
NN
Y
RU
N\
CA
DD\
PL
AN
S\
CP01.D
GN
CONSTRUCTION PLAN
CP-03
MA
TC
HLIN
E
CP-02
1-R
I.P.
POND ACCESS ROAD
DP-
E-
OH
DP-E-
OH
DP-E-OH
R/
W
R/
W
STA 00+06
N 624
506E 56
5052
N 624
339E 56
5005N
624432E
56
4803
BL
1
PA
PE
R
MIL
L R
OA
D
POND ACESS ROAD
BOLLARD - WOOD POST
LOC LIMIT OF CONSTRUCTION
CONSTRUCTION BASELINE100+00
CONSTRUCTION SAFETY FENCECSF
LEGEND
SCD
2
BL
2
EXISTING RIPRAP
STONE CHECK DAM
#3 STONE
1-L
2.3 ACRES
DB H75 PAGE 613
DELMARVA POWER & LIGHT CO
PARCEL ID 0804700049
INSTR. NO. 20061215-0117947
LIBORIO-LOUVIERS LLC
PARCEL ID 0804700007
AND CLEAR AREA
REMOVE CONCRETE RUBBLE
PROTECT SIGN
#3 STONE ARMOUR
PER DB 2343 PG 0144
PERMANENT EASEMENT
DELDOT EXISTING
10’ WIDE
PER DB 2343 PG 0144
EXISTING UTILITY EASEMENT
10’ WIDE
PER INSTR. NO 20011210-0103977
EXISTING EASEMENT
DELDOT PERMANENT
10’ WIDE
POND ROAD WORKBEGINNING OF ACCESS
CONSTRUCTION EQUIPMENT
TO AVOID CONFLICTS WITH
ELECTRICAL OVERHEAD CLEARANCE
CONTRACTOR SHALL VERIFY
EXTENDED UP TO GRADE
MAIN CLEANOUT TO BE
EXISTING SEWER FORCE
26’
10’
1
1
QUANTITY TABLE FOR BORROW, TYPE F - NAR/JML 02/23/2017
AND POSTS.RESPONSIBLE FOR REPAIR/REPLACEMENT OF SIGN CREEK STATE PARK" SIGN. CONTRACTOR SHALL BE 1. CONTRACTOR SHALL PROTECT THE "WHITE CLAY NOTES:
LAYOUT BASED IN GIS INFORMATION.3. EXISITNG UNDERGROUND DELDOT SIGNAL CONDUIT
CONFLICTS WITH CONSTRUCTION EQUIPMENT. DELMARVA OVERHEAD UTILITIES TO AVOID AT STA 00+06 FOR VERIZON, WINDSTREAM, AND 2. THE CONTRACTOR SHALL VERIFY THE CLEARANCE
FRAME AND LIDS NEEDS TO BE INSTALL. POND ACESS ROAD. A PROPER CAST, CLEAN OUT BE EXTENDED UP TO GRADE AT THE PROPOSED 1. THE EXISITNG SANITARY SEWER CLEANOUT SHALL UTILITY NOTES:
DEPARTMENT OF TRANSPORTATIONDELAWARE
TOTAL SHTS.
SHEET NO.CONTRACT
COUNTYDESIGNED BY:
CHECKED BY:
ADDENDUMS / REVISIONS
NEW CASTLE
SHEET TITLE
KHK
24
T201580202
JMLAT JENNY RUNOUTFALL CHANNEL
STABILIZATION OF SWMCS-03
NOT TO SCALE
MULCH ACCESS ROAD DETAIL
HEIGHT
WIDTH
TIMBER MAT DETAIL
OUTLET PROTECTION
WATER PUMPING FOR STREAM DIVERSION DETAIL
P
P
FLOW
OUTLET PROTECTION.
HOSE IN CENTER OF
PLACE DISCHARGE
NOTE:
NOT TO SCALE
NOT TO SCALE NOT TO SCALE
NOT TO SCALE
PLAN VIEW
5’ MIN.
5’
MI
N.
PROFILE VIEW
LENGTH
UNDISTURBED GROUND
GEOTEXTILE
TEMPORARY ORANGE CONSTRUCTION FENCE
DURING THE CONSTRUCTION
REPLENISHED AS NEEDED
OF WOOD CHIP MULCH
12" MINIMUM THICK LAYER
DISCHARGE HOSE
SANDBAG (TYP.)
DISCHARGE HOSE
SANDBAG (TYP.)
EX. GROUND
SANDBAG (TYP.)
GEOTEXTILE
CLASS SE
PLAN VIEW
INTAKE HOSE
STREAM DIVERSION PUMPS
SECTION A-A
AA
TO BE USED.
CONTRACTOR IS RESPONSIBLE TO SELECT APPROPRIATE SIZE/STRENGTH OF TIMBER MATTING BASED ON EQUIPMENT 3.
HARDWOODS INCLUDING OAK, BEECH AND HICKORY.
MATERIAL: DRAGLINE MATS OR SIMILAR TIMBER MATTING SHALL BE CONSTRUCTED FROM MIXED AMERICAN OAK 2.
TIMBER MATS CAN BE REUSED AS NECESSARY THROUGHOUT THE PROJECT.
TIMBER MATS SHALL BE USED TO TRAVERSE STREAM CHANNEL AND IF THERE IS AN UTILITY LINE UNDERGROUND. 1.
NOTES:
20
CONTROL PLANM.O.T., AND EROSION
CONSTRUCTION PHASING,
T:\
185631E -
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NN
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AN
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CS03.D
GN
PRIOR TO IMPLEMENTATION.
ADDITIONAL COST TO THE DEPARTMENT, AND THOSE MEASURES MUST BE APPROVED BY THE ENGINEER
EQUIPMENT WITH HIGHER LOADS, ADDITIONAL PROTECTION MEASURES MUST BE PROVIDED, AT NO
EQUIPMENT WHICH EXERTS NO MORE THAN 8 PSI. IF THE CONTRACTOR INTENDS TO USE ANY
THE HAUL ROAD IS DESIGNED TO PREVENT COMPACTION OF EXISTING SOILS USING LOW PRESSURE 6.
ENGINEER.
SCARIFICATION OF COMPACTED MULCH TO OCCUR UPON REMOVAL OF HAUL ROAD, AT DIRECTION OF 5.
THE PROJECT, MULCH CAN REMAIN IN PLACE AT A MAXIMUM DEPTH OF 2".
CONTRACTOR SHALL MAINTAIN MULCH MAT THROUGHOUT CONSTRUCTION PERIOD. AFTER COMPLETION OF 4.
NATURAL FIBER MATTING MAY BE ELIMINATED AT DIRECTION OF ENGINEER.3.
OVERLAP FABRIC BY 18" MINIMUM AT SEAMS.
NATURAL FIBER MATTING SHALL BE PLACED WITH SEAMS PARALLEL TO THE FLOW OF TRAFFIC, 2.
BY THE ENGINEER.
ALIGNMENT THAT MINIMIZE TREE DISTURBANCE ARE ENCOURAGED AND REQUIRE REVIEW AND APPROVAL
ACCESS ROUTES TO BE VERIFIED BY ENGINEER AT PRE-CONSTRUCTION MEETING. REVISIONS TO THE 1.
NOTES:
SANDBAGS SANDBAGS
GEOTEXTILE
SUMP PIT
STILLING WELL
DEVICE
DEWATERING
APPROVED
DISCHARGE HOSES
FLOW
DEWATERING PUMP
FLOW
WORK AREA
CROSS SECTION OF SANDBAG DIKE
(2 FOOT MINIMUM)
BASE FLOW +1 FOOT
SHEETING
IMPERVIOUS
ONE DAY
CAN BE COMPLETED IN
TO EXCEED THAT WHICH
WORK AREA LENGHT NOT
DISSIPATOR
VELOCITY
ONTO A STABLE
DISCHARGE
PUMPS SHOULD 5’ WIDE)
(12" TO 18" DEEP
R-4 RIPRAP
FLOAT
DEWATERING HOSE
6" (150) MIN. FREEBOARD
TO PUMP
NOT TO SCALE
STILLING WELL
OUTFALL
STABILIZED
DISCHARGE TO
WATER
5’
DEPTHVARIES30" TO 36"
INFLOW
WATER
GEOTEXTILE CLASS SE
TRIBUTARY SHALL CONTINUE TO BE PUMPED AROUND THE WORK AREA IN THE MAIN STEM.
THE TRIBUTARY IS COMPLETED, WORK ON THE MAIN STEM SHALL RESUME. WATER FROM THE
SAME SEQUENCE AS FOR THE MAIN STEM OF THE RIVER OR STREAM. WHEN CONSTRUCTION ON
CONSTRUCTION IN THE TRIBUTARY, INCLUDING PUMP AROUND PRACTICES, SHALL FOLLOW THE
TRIBUTARY BEFORE WORK ON THE MAIN STEM REACHES THE TRIBUTARY CONFLUENCE.
8. IF A TRIBUTARY IS TO BE RESTORED, CONSTRUCTION SHALL TAKE PLACE ON THE
SAME VELOCITY DISSIPATOR USED FOR THE MAIN STEM PUMP AROUND.
PUMPING THE STREAM FLOW AROUND THE WORK AREA. THIS WATER SHALL DISCHARGE ONTO THE
SANDBAG DIKE AT THE DOWNSTREAM END OF THE TRIBUTARY OR STORM DRAIN OUTFALL AND
CONTRIBUTES BASEFLOW TO THE WORK AREA. THIS SHALL BE ACCOMPLISHED BY LOCATING A
7. A PUMP AROUND MUST BE INSTALLED ON ANY TRIBUTARY OR STORM DRAIN OUTFALL WHICH
NEW SEDIMENT DIKE BELOW THE OLD ONE, THE OLD SEDIMENT DIKE SHALL BE REMOVED.
ESTABLISHED UPSTREAM FROM THE OLD SEDIMENT DIKE. FINALLY, UPON ESTABLISHMENT OF A
REMOVED. AFTER THE FIRST SEDIMENT FLUSH, A NEW CLEAN WATER DIKE SHALL BE
6. AFTER AN AREA IS COMPLETED AND STABILIZED, THE CLEAN WATER DIKE SHALL BE
AND MATTING AS SPECIFIED ON THE PLANS.
CROSS-SECTIONS. ALL GRADING MUST BE STABILIZED AT THE END OF EACH DAY WITH SEED
AND ALL BANKS GRADED IN ACCORDANCE WITH THE GRADING PLANS AND TYPICAL
5. ALL STREAM RESTORATION MEASURES SHALL BE INSTALLED AS INDICATED BY THE PLANS
NECESSARY AND ONLY WHERE NOTED ON THE PLANS OR SPECIFIED.
DISTURBANCE TO THE CHANNEL. TEMPORARY STREAM CROSSINGS SHALL BE USED ONLY WHEN
ANOTHER AREA, THEN TIMBER MATS OR SIMILAR MEASURES SHALL BE USED TO MINIMIZE
PROPOSED SHALL BE AVOIDED. IF EQUIPMENT HAS TO TRAVERSE SUCH A REACH FOR ACCESS TO
4. TRAVERSING A CHANNEL REACH WITH EQUIPMENT WITHIN THE WORK AREA WHERE NO WORK IS
SANDBAG DIKE.
BE LOCATED SUCH THAT THE WATER DRAINS BACK INTO THE CHANNEL BELOW THE DOWNSTREAM
AS A DEWATERING BASIN, SEDIMENT BAG, OR OTHER APPROVED SOURCE. THE MEASURE SHALL
3. WATER FROM THE WORK AREA SHALL BE PUMPED TO A SEDIMENT FILTERING MEASURE SUCH
ENGINEER.
PUMP SHALL DISCHARGE ONTO A STABLE VELOCITY DISSIPATOR APPROVED BY DELDOT AND THE
AS SHOWN ON THE PLANS, AND STREAM FLOW SHALL BE PUMPED AROUND THE WORK AREA. THE
2. SANDBAGS SHALL BE SITUATED AT THE UPSTREAM AND DOWNSTREAM ENDS OF THE WORK AREA
CONDUCTED IN THE CHANNEL DURING RAIN EVENTS.
BE STABILIZED AND THE PUMP AROUND REMOVED FROM THE CHANNEL. WORK SHALL NOT BE
FOR DEVIATIONS FROM THE ENGINEER. AT THE END OF EACH WORK DAY, THE WORK AREA MUST
SEQUENCE OF CONSTRUCTION MUST BE FOLLOWED UNLESS THE CONTRACTOR RECEIVES APPROVAL
IF NOTED OR APPROVED BY THE STORMWATER ENGINEEROR DESIGNATED REPRESENTATIVE. THE
UPSTREAM SECTION AND PROCEED DOWNSTREAM. IN SOME CASES, WORK MAY BEGIN DOWNSTREAM
CONTROL INSPECTOR, THE CONTRACTOR SHALL BEGIN THE STREAM DIVERSION WORK AT THE
1. UPON INSTALLATION OF ALL SEDIMENT CONTROL MEASURES AND APPROVAL BY THE SEDIMENT
CONSTRUCTION SHALL BE COMPLETED IN THE FOLLOWING SEQUENCE (REFER TO DETAIL 1.2).
SEDIMENT CONTROL MEASURES, PUMP AROUND PRACTICES, AND ASSOCIATED CHANNEL AND BANK
IMPLEMENTATION SEQUENCE
DEWATERING BAGS SHALL BE PAID FOR UNDER ITEM 906002.
DIRTY WATER PUMPING SHALL BE PAID FOR UNDER ITEM 909005-STREAM DIVERSION.
NECESSARY FOR ESTABLISHMENT AND OPERATIONS OF THE CLEAN WATER STREAM DIVERSION AND
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