COEWO-00270 - EW_BMcD_SMS_4518-EWO138-ATP196 Ramp E Rip Rap_07262023 - Package.pdf
PDF 15 MB Posted
- Solicitation number
- 24-557THA-ENGCO-B-38519
- Issued by
- Cook County, Chicago City, Illinois
About this file
This document is a package containing an attachment for a state and local government contract opportunity in Illinois. The contract opportunity, identified as I-20-4518 - EWO #138 - ATP #196 - I-294 Roadway Reconstruction and Widening, is being issued by the state of Illinois, Cook County, and the city of Chicago. The package includes details on the scope of work for the project, which involves rip rap work on Ramp E. The contract opportunity does not provide specific quantities or response due dates, but it indicates that additional information can be found in the item and attachment tabs.
The document does not provide details on pricing terms, set asides, incumbents, funding requirements or sources, or any other salient financial information. It appears to be a supplemental package to the main contract opportunity, focusing on the technical specifications and requirements for the rip rap work on Ramp E.
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Text version
Change Order/Extra Work Order 4518C I-294 Rdwy Recon & Widening, Plaza 39 to 75th St
10:40:43 AM, 8/7/2023
Project: 4518C I-294 Rdwy Recon & Widening, Plaza 39 to 75th St
Project Number:
4518C
Process Document:
COEWO - 270 Overall Due Date:
Current Workflow
Step:
EWO package Step Due Date:
Subject: EW_BMcD_SMS_4518-EWO138- ATP196 Ramp E Rip Rap_07262023
Status: Pending
Change Order/Extra Work Order Details
Contract Number:
I-20-4518
Change Type (may choose more than one):
Extra Work Order
Change Order or Extra Work Order No.:
Amount of Change
Order/Extra Work Order ($):
$189000.00
Offsetting CO/EWO?: No
Associated Offsetting
CO/EWO No.:
Related ATP #: 196.0
Related ATP Title: Ramp E Rip Rap
Reason for Change/Extra
Work:
The backslope on the south side of I-294 between stations 1060+75 and 5069+25 is experiencing groundwater seepage. Maintaining and mowing this area will be extremely difficult due to the highly saturated soil. The CM recommends installing permanent riprap at this location to stabilize and prevent future maintenance issues. This work will be performed on a time and material basis.
Impact on Schedule: This work is not anticipated to have an impact on the critical path of the project.
The interim, substantial, and final completion dates are not anticipated to be impacted by this change. A time extension is not anticipated to be required.
CO/EWO
Determination:
Comments
ILLINOIS STATE TOLL HIGHWAY AUTHORITY
ROADWAY AND BRIDGE RECONSTRUCTION
TRI-STATE TOLLWAY (I-294)
CONTRACT NO. I-20-4518
EXTRA WORK ORDER NO: 138
Revision 1 1 of 1 F3080.03
EXPLANATION
The backslope on the south side of I-294 between stations 1060+75 and 5069+25 is experiencing groundwater seepage. Maintaining and mowing this area will be extremely difficult due to the highly saturated soil. The CM recommends installing permanent riprap at this location to stabilize and prevent future maintenance issues. This work will be performed on a time and material basis.
ITEM NO. FRC13800 PERMANENT RIP RAP
SPECIFICATION
S.P. FRC13800.1 DESCRIPTION
Re-grade and install permanent rip rap on the south backslope of I-294 between stations 1060+75 and 5069+25.
S.P. FRC13800.2 GENERAL REQUIREMENTS
This work shall be per the Contract Documents and per the direction of the Engineer.
S.P. FRC13800.3 MATERIAL
This material shall be per the Contract Documents and per the direction of the Engineer.
S.P. FRC13800.4 MEASUREMENT
This work will not be measured for payment.
S.P. FRC13800.5 PAYMENT
Payment for PERMANENT RIP RAP will be made as specified in Subsection 109.04 of the Tollway Supplemental Specifications using a force account basis and will not exceed the costs incurred by the Contractor and approved by the Engineer.
PAY ITEM
NUMBER DESIGNATION
UNIT OF
MEASURE
FRC13800 PERMANENT RIP RAP UNIT
IMPACT ON SCHEDULE
This work is not anticipated to have an impact on the critical path of the project. The interim, substantial, and final completion dates are not anticipated to be impacted by this change. A time extension is not anticipated to be required.
1431 Opus Place \ Suite 400 \ Downers Grove, IL 60515
O 630‐724‐3200 \ F 630‐724‐3201 \ burnsmcd.com
To: Joseph Hunn P.E., Project Manager Date: August 1, 2023 Illinois State Toll Highway Authority
From: Shelli Schweickert, P.E., Burns & McDonnell
Contract: I-20-4518 – TRI-STATE TOLLWAY (I-294) Roadway and Bridge Reconstruction
MP 19.30 TO 22.30
Subject: EWO Accuracy and Merit Independent Determination EWO 138 – Permanent Rip Rap
We the Construction Manager, independently checked the cost accounting math and determined it to be accurate and correct. We further confirm the work as germane to the contract and necessary to complete the project. We also verify the cost of such work to be within the normal range and it is neither redundant nor incidental to the original contract. As such, we hereby recommend the EWO for payment, as follows:
Scope of Work Proposed Estimated Cost Amount Work Verified by Date
EWO 138 – Permanent Rip Rap $189,000.00 Burns & McDonnell 07-26-2023
Please feel free to contact me at 630-514-2320 if you should have any questions.
Sincerely, Shelli Schweickert, P.E.
Resident Engineer Burns & McDonnell Engineering
Contract No.: I-20-4518 EXHIBIT C Roadway and Bridge Reconstruction and Widening Tri-State Tollway (I-294) M.P. 19.3 to M.P. 22.3 ATP: 196
Calc By: CKS
Checked By: SMS
Labor Hours: Overtime Rate: Total:
2 Laborer 50 47.40$ 4,740.00$
1 Laborer ‐ Foreman 50 48.15$ 2,407.50$
2 Operator 50 56.30$ 5,630.00$
1 Truck Driver 16 40.60$ 649.60$
Labor Subtotal 13,427.10$
Benefits (60%) 8,056.26$
Benefits & Labor Markup (35%) 7,519.18$
Insurance w/markup (35%) 4,699.49$
Labor Total = 33,702.02$ A
Equipment Hours: Rate: Total:
1 Backhoe 50 90.00$ 4,500.00$
1 Dump truck 16 70.00$ 1,120.00$
1 Front End Loader 50 65.00$ 3,250.00$
3 GMC Truck 50 31.00$ 4,650.00$
1 Lowboy 8 110.00$ 880.00$
1 Lane Closure (each) 3 Each 2,500.00$ 7,500.00$
1 Disposal Fee ‐ Removed Concrete 6 Load 100.00$ 600.00$
Equipment Total = 22,500.00$ B
Material Quantity: Rate: Total:
Rip Rap (ton) 2300 50.00$ 115,000.00$
Material Subtotal 115,000.00$
Markup (15%) 17,250.00$
Material Total = 132,250.00$ C
CM's Estimate of the Contractor's Additional Cost 188,452.02$ A+B+C
Contractor mark‐up (5% on subcontracted work) ‐$
Total 188,452.02$
CM Estimated cost of Work 189,000.00$
Engineers Estimate: Scope consists of re‐grading and installing permanent rip rap on the south backslope of I‐294 between stations 1060+75 and
5069+25.
cschultz Text Box
EXHIBIT D
NWECHP 7/22/2020
681 1085
1 15
TS20.00N,SB
GENERAL PLAN AND ELEVATION (1 OF 5)
JLP 7/22/2020
I-20-4518
P L
O T
D A
T E
P L
I
M E
:2
:3
P M
P L
S C
A L
E
:0 i n
F I L
E
N
M E p w a e c o m n a p w .b e n t l e y .c o m :A
E C
O M
D
S
N A
D o c u m e n t s
C e n t r a l
T r i S t a t e
M
W o r k a c k a g e s I S
G
G
N
S
H T
S t r u c t u r a l
H D
R
T S .0
N
S B
C S
H T S
T R
T S .0
N
S B
G P
E
H D
R
DRAWN BY
CHECKED BY
DATE
DATE
NO. DATE DESCRIPTION
REVISIONS
I L L I N O I S 6 0 5 1 5
D O W N E R S G R O V E, 2 7 0 0 O G D E N A V E N U E
THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY CONTRACT NO.
SHEET NO.
DRAWING NO.
OF
OF
ROSEMONT, IL 60018
9450 W. BRYN MAWR AVE.
HDR ENGINEERING, INC.
24" RCP
24" RCP 27" RCP
C
M P
LEGEND:
SOIL BORING LOCATION
EXISTING LIGHT POLE
EXISTING ELECTRIC LINE
PROPOSED STORM SEWER
FIBER OPTIC LINE
FIBER OPTIC AERIAL LINE
PROPOSED LUMINAIRE
LOCATION SKETCH
A R C
H E R A
V E
4296-NWB-047
OFFSET 144.64' LT
STA. 1060+77.23 ¡ I-294
BEGIN NAW
TYP.
20'-0''
POST EL.
T/WALL &
13 14 15 16 17
NAW LENGTH
ELEVATION
(VERTICAL SCALE EXAGGERATED)
GT05-1
PLAN
(TYP.)
POST MARK
(TYP.)
PANEL MARK
NOISE ABATEMENT WALL
GROUND MOUNTED
NON-CRASHWORTHY
GT06-1 GT05-1 GT05-1 GT05-1 GT05-1
¡ RAMP E
01 02 03
04 05 06
07 08 09 10 11 12
FENCE
WOODS AND BRUSH
GT07-1
GC04-1
GC04-1
GC04-1
GT07-1
GC04-1
GC04-1
GC04-1
GT06-1
GC04-1
GC04-1
GC04-1
GT06-1
GC04-1
GC04-1
GC04-1
GT06-1
GC04-1
GC04-1
GC04-1
GT05-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-1
HIGHWAY CLASSIFICATION SEISMIC DATA
SEISMIC PERFORMANCE ZONE (SPZ) = 1
DESIGN SPECTRAL ACCELERATION AT 1.0 SEC (SDI) = 0.063
DESIGN SPECTRAL ACCELERATION AT 0.2 SEC (SDS) = 0.114
SOIL SITE CLASS = C
INDEX OF SHEETS
NOTES
SB TRI-STATE TOLLWAY (I-294)
FUNCTIONAL CLASS: INTERSTATE
ADT: 71,750 (2015); 82,000 (2040)
ADTT: 12,200 (2015); 13,950 (2040)
DHV: AM-4,660; PM-7,070 (2015); AM-5,900; PM-7,500 (2040)
DESIGN SPEED: 70 M.P.H.
POSTED SPEED: 60 M.P.H.
ONE WAY TRAFFIC
DIRECTION DISTRIBUTION 100%-0%
EX. ROW
PROP. COMM. CONDUITS
PIPE REMOVAL
PROP. DRILLED SHAFT
¡ POST AND SHAFT (TYP.)
PIPE UNDERDRAIN
2143'-101 2"
LOCATION
PROJECT
T W
P
N
RANGE 12E, 3RD P.M.
79TH ST
I-294
T H
A
V E
R O
B E
R T S
R
D
U S
N
SEE DRAINAGE PLANS
FOR PIPE UNDERDRAIN,
NWE-1
NWE-2
NWE-3
NWE-4
NWE-5
NWE-6
NWE-7
NWE-8
NWE-9
NWE-10
NWE-11
NWE-12
NWE-13
NWE-14
NWE-15
GENERAL PLAN AND ELEVATION (1 OF 5)
GENERAL PLAN AND ELEVATION (2 OF 5)
GENERAL PLAN AND ELEVATION (3 OF 5)
GENERAL PLAN AND ELEVATION (4 OF 5)
GENERAL PLAN AND ELEVATION (5 OF 5)
NAW PANEL SCHEDULE AND NOTES
NAW FOUNDATION AND POST SCHEDULE
NAW FOUNDATION AND POST SCHEDULE
SOIL BORING LOGS
SOIL BORING LOGS
SOIL BORING LOGS
SOIL BORING LOGS
SOIL BORING LOGS
SOIL BORING LOGS
SOIL BORING LOGS
GENERAL PLAN & ELEVATION
TRI-STATE TOLLWAY (I-294)
COOK COUNTY
STATION 1060+77.23 TO 5083+18.96
NOISE ABATEMENT WALL TS20.00N,SB
BENCHMARK: BM18: CH X IN SE BOLT ON BASE OF 2ND LP S OF GANTRY SIGN IN SBL WHERE NB 171 ON RAMP MERGES IN SBL, APPROX 90' SE OF END OF
GORE. ELEV. 605.544.
EXISTING STRUCTURE: NONE
PROPOSED STRUCTURE: NON-CRASHWORTHY GROUND MOUNTED NOISE ABATEMENT WALL CONSISTING OF STEEL POSTS AND PRECAST CONCRETE PANELS SUPPORTED BY
CONCRETE DRILLED SHAFTS ALONG WESTERN SHOULDER OF SB I-294 IS 2163'-101
2" IN TOTAL LENGTH AND VARYING IN HEIGHT WITH MAX. POST HEIGHT OF 24FT.
GT06-1 GT06-1 GT06-1 GT06-1
ACOUSTICAL PROFILE
FACILITY (SEE NOTE 5)
ABANDONED UTILITY
1. FOR NOISE WALL BILL OF MATERIAL, SEE SHEET NWE-8.
2. ALL MEASUREMENTS AND STATIONS ARE TAKEN ALONG
THE FRONT FACE (ROADWAY SIDE) OF NAW UNLESS
NOTED OTHERWISE.
3. TOP OF WALL AND TOP OF POST ELEVATIONS ARE TO
MATCH AS SHOWN IN THE ELEVATION VIEW.
4. ACOUSTICAL PROFILE SHOWN FOR INFORMATION ONLY.
5. ABANDONED UTILITY FACILITY SHALL BE REMOVED AND
BACKFILLED IN ACCORDANCE WITH THE SPECIAL
PROVISION 'ALLOWANCE FOR DEBRIS REMOVAL AND
DISPOSAL'.
GBU04-1 GBU04-1 GBU04-1 GBU04-1 GBU04-1
GBU04-1 GBU04-1 GBU04-1 GBU04-1 GBU04-1
GBU04-1 GBU04-1 GBU04-1 GBU04-1
GBU04-1
EL. 645.23
EL. 646.23
EL. 647.23
EL. 648.23
(TYP.)
DRILLED SHAFT,
G -1
4296-NWB-045
4296-NWB-046
M A
T C
H L
IN
E
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
LOCATION MARK (TYP.)
(T Y P
IN
169+00 168+00
170+00 171+00
4296-NWB-048
(ROADWAY SIDE)
F.F. OF WALL
(RESIDENTIAL SIDE)
B.F. OF WALL
WITH 6" SHIMS
BOTTOM STEP
1'-0" MIN.
AT F.F. OF WALL
EX. GROUND
GBU04-1
(RESIDENTIAL SIDE)
AT B.F. OF WALL
PROP. GROUND
(ROADWAY SIDE)
AT F.F. OF WALL
PROP. GROUND
OF WALL
PROFILE AT B.K.
PROP. DITCH
cschultz Callout Permanent riprap cschultz Text Box
EXHIBIT E 1/4
Polygon
682 1085
2 15
TS20.00N,SB
GENERAL PLAN AND ELEVATION (2 OF 5)
JLP 7/22/2020
I-20-4518
P L
T E
P L
M E
:2
:0
P L
A L
E
:0 i n
F I
M E p w a e c o m n a p w .b e n t l e y .c o m :A
E C
O M
D
S
N A
D o c u m e n t s
C e n t r a l
T r i S t a
M c k a g e s I S
G
N
S
H T
S t r u c t u r a l
H D
R
T S .0
N
S B
C S
H T S
T R
T S .0
N
S B
G P
E
H D
R
DRAWN BY
CHECKED BY
DATE
DATE
NO. DATE DESCRIPTION
REVISIONS
I L L I N O I S 6 0 5 1 5
D O W N E R S G R O V E, 2 7 0 0 O G D E N A V E N U E
THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY CONTRACT NO.
SHEET NO.
DRAWING NO.
OF
OF
ROSEMONT, IL 60018
9450 W. BRYN MAWR AVE.
HDR ENGINEERING, INC.
T L A E
27" RCP
36" RCP
36" RCP
36" RCP
R C
P
48" RCP
C
M P
C
M P
ELEVATION
(VERTICAL SCALE EXAGGERATED)
4296-NWB-049
05 06 07 08
09 10 11 12
GT05-1
GT05-2GT05-1 GT05-1 GT05-1 GT05-1 GT05-1 GT05-1 GT05-1 GT05-1 GT05-1GT05-1
PLAN
¡ RAMP E
GT05-2 GT05-2
GT06-2 GT06-2
GT05-2 GT05-2
GT05-2
21 22 23 24 25 2619 20
SP1
GC04-1
KINK
15'-0''
(TYP.)
PANEL MARK
NOISE ABATEMENT WALL
GROUND MOUNTED
NON-CRASHWORTHY
POST EL.
T/WALL &
(TYP.)
POST MARK
TYP.
20'-0''
LOCATION MARK (TYP.)
GC04-1 GC04-1 GC04-1 GC04-1
GC04-1 GC04-1 GC04-1 GC04-1
GC04-1 GC04-1 GC04-1 GC04-1
GBU04-1 GBU04-1 GBU04-1 GBU04-1
GC04-1 GC04-1 GC04-1 GC04-1
GC04-1 GC04-1 GC04-1 GC04-1
GC04-1 GC04-1 GC04-1 GC04-1
GBU04-1 GBU04-1 GBU04-1 GBU05-1
GC04-1 GC04-1
GC04-1 GC04-1
GC04-1 GC04-1
GBU05-1 GBU05-1
SP1
GC04-1
SP1
GC04-1
GC04-1
GC04-1
GC04-1
GC04-2
GC04-2
GBU05-2
SP1
GC04-2
SP1
GC04-2
SP1
GC04-2
GT05-1
SP1
GC04-1
SP1
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GBU05-2
GC04-2
GC04-2
GC04-2
GBU05-2
GC04-2
GC04-2
GC04-2
GBU05-2
GC04-2
GC04-2
GC04-2
GBU05-2
GC04-2
GC04-2
GC04-2
GBU05-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GBU05-2 GBU05-2
GBU04-2
GBU05-2
GC04-2
GC04-2
EX. ROW
TYP.
20'-0''
¡ POST AND SHAFT (TYP.)
WALL SEGMENT-2 BEGIN WALL SEGMENT-1 END
EXISTING FENCE
SEE DRAINAGE PLANS
FOR PIPE UNDERDRAIN,
� POINT OF MAX. UNBALANCED SOIL CONDITION
SP1
GBU05-1 3
ACOUSTICAL PROFILE
GT05-2GT05-2
GT05-2
27 28
SP1
GT05-1
SP1
GT06-2
EL. 645.23
15'-0''
15'-0''
''4
14'-11
15'-0''
''4 314'-11
01 02
EL. 645.75
EL. 646.75
EL. 648.75
EL. 649.75
M A
T C
H L
IN
E
M A
T C
H L
IN
E
.0
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -1
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
(TYP.)
DRILLED SHAFT,
4296-NWB-051
G -1
(T Y P
4296-NWB-050
4296-NWB-052
167+00
166+00
165+00
163+00
G -1
(ROADWAY SIDE)
F.F. OF WALL
B.F. OF WALL (RESIDENTIAL SIDE)
SP1
GBU04-2
GBU05-2
AT F.F. OF WALL
EX. GROUND WITH 6" SHIMS, TYP.
BOTTOM STEP
1'-0" MIN.
GBU04-1
GBU04-1
SP1
174°36'58"
164+00
(RESIDENTIAL SIDE)
AT B.F. OF WALL
PROP. GROUND
(ROADWAY SIDE)
AT F.F. OF WALL
PROP. GROUND
OF WALL
PROFILE AT B.K.
PROP. DITCH
cschultz Text Box
EXHIBIT E 2/4
cschultz Polygon cschultz Callout Permanent riprap
683 1085
3 15
TS20.00N,SB
GENERAL PLAN AND ELEVATION (3 OF 5)
JLP 7/22/2020
I-20-4518
P L
T E
P L
M E
:2
:3
P L
A L
E
:0 i n
F I
M E p w a e c o m n a p w .b e n t l e y .c o m :A
E C
O M
D
S
N A
D o c u m e n t s
C e n t r a l
T r i S t a
M c k a g e s I S
G
N
S
H T
S t r u c t u r a l
H D
R
T S .0
N
S B
C S
H T S
T R
T S .0
N
S B
G P
E
H D
R
DRAWN BY
CHECKED BY
DATE
DATE
NO. DATE DESCRIPTION
REVISIONS
I L L I N O I S 6 0 5 1 5
D O W N E R S G R O V E, 2 7 0 0 O G D E N A V E N U E
THE ILLINOIS STATE TOLL HIGHWAY AUTHORITY CONTRACT NO.
SHEET NO.
DRAWING NO.
OF
OF
ROSEMONT, IL 60018
9450 W. BRYN MAWR AVE.
HDR ENGINEERING, INC.
E
T
A T
M
T L A E
160+00
54" RCP
48" RCP 1
R
C P
12" RCP
C
M P
C
M P
C
M P
4296-NWB-057
GT07-2
GT07-2
GT06-2
GT05-2
GT06-2 GT06-2
GT04-2
GT05-2
GT04-2
GT04-2
GT06-2
GT04-2
GT05-2 GT04-2
GT06-2
GT05-3
GT05-3
PLAN
(VERTICAL SCALE EXAGGERATED)
ELEVATION
SP1
GC04-2
KINK
19 20 21
24 25
28 29 30
31 32
¡ RAMP E
15'-0''
KINK
LOCATION MARK (TYP.)
(TYP.)
PANEL MARK
NOISE ABATEMENT WALL
GROUND MOUNTED
NON-CRASHWORTHY
POST EL.
T/WALL &
(TYP.)
POST MARK
EL. 649.75
SP1
GC04-2
SP1
GT07-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GC04-2
GT05-3
SP3
GC04-3
SP3
GC04-3
SP3
GC04-3
GC04-3
GC04-3
GT06-2
GC04-2
GC04-2
GC04-2
GC04-3
GC04-3
GC04-3
SP2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
SP2
GC04-2
''4 319'-11
WALL SEGMENT-3 BEGIN WALL SEGMENT-2 END
EXISTING FENCE
4296-NWB-054
SEE DRAINAGE PLANS
FOR PIPE UNDERDRAIN,
PROFILE
ACOUSTICAL
4296-NWB-056
4296-NWB-057A
4296-NWB-058A
15'-0''
''4 318'-8
GBU05-2
GBU05-2 GBU05-2
GBU06-2
GBU06-2
GBU06-2
GBU06-2
GBU05-2 GBU06-2
GBU06-2
GBU05-2
EL. 653.75
EL. 655.75
EL. 656.75
EL. 657.75
EL. 658.75
EL. 662.75
EL. 664.75
EL. 665.75
EL. 667.75
EL. 669.75
EL. 671.75
EL. 673.75
EL. 660.75
EL. 674.13
EL. 675.13
SP2
GT07-2
SP2
GT05-2
SP2
GT05-2
EL. 651.75
M A
T C
H L
IN
E
.0
M A
T C
H L
IN
E
.0
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -2
G -3
G -3
TYP.
20'-0''
(TYP.)
DRILLED SHAFT,
(T Y P
''2
18'-8
''4
19'-11''4 319'-11
''4 319'-11
G -2
G -2
G -2
G -2
G -2
G -3
G -3
¡ POST AND SHAFT (TYP.)
G -2
162+00
4296-NWB-055
4296-NWB-053
PANEL
OPENING IN
7"x7" DRAINAGE
(ROADWAY SIDE)
F.F. OF WALL
(RESIDENTIAL SIDE)
B.F. OF WALL
161+00
PANEL
OPENING IN
7"x7" DRAINAGE
4296-NWB-058
AT F.F. OF WALL
EX GROUND
GBU04-2
GBU06-2
GBU06-2
GBU04-2
GBU04-3
GBU04-3
SP1
GBU07-2
SP2
GBU04-2
SP2
GBU06-2
SP2
GBU06-2
GBU04-3
SP3
170°8'39"
171°40'33"
TYP., U.N.O.
WITH 6" SHIMS,
BOTTOM STEP
1'-0" MIN.
(RESIDENTIAL SIDE)
AT B.F. OF WALL
PROP. GROUND
(ROADWAY SIDE)
AT F.F. OF WALL
PROP. GROUND
GBU04-2
OF WALL
PROFILE AT B.K.
PROP. DITCH
cschultz Text Box
EXHIBIT E 3/4
cschultz Polygon cschultz Callout Permanent riprap
Polygon cschultz Callout Proposed Rip Rap cschultz Text Box
EXHIBIT E 4/4
Revision Level: 2 Page 1 of 1 F3080.07
CO/EWO DETERMINATION PROCUREMENT FORM
Contract No.: I-20-4518
Project Description: 4518C I-294 Rdwy Recon & Widening, Plaza 39 to 75th St
Contractor: Walsh Construction Company II LLC
Awarded Contract Value: $70,518,407.28
Change Order No: / Extra Work Order No.: 138
Authorization Amount: $189,000.00
Description and Reason for Change: The backslope on the south side of I-294 between stations 1060+75 and 5069+25 is experiencing groundwater seepage. Maintaining and mowing this area will be extremely difficult due to the highly saturated soil. The CM recommends installing permanent riprap at this location to stabilize and prevent future maintenance issues. This work will be performed on a time and material basis.
Department:
The undersigned, pursuant to the requirements of Section 6.385 of the Joint Committee on Administrative Rules and Section 33E-9 of the Illinois Criminal Code, makes the following determination:
[ X ] The circumstances necessitating this change were not reasonably foreseeable at the time the contract was originally signed.
[ X ] The change is germane to the original contract as signed.
[ ] Provision for this work is included in the original contract.
[ X ] Work of this type was included in the original contract, and the additional efforts of this work are within the intent of the contract and Department policy.
[ ] The change represents an adjustment required by the contract, based on unpredictable developments in the work.
[ ] The change in design is necessary to fulfill the original intent of the contract.
[ ] See below or attached sheet for additional explanation of germaneness.
[ ] The change is otherwise in the best interest of the Authority and authorized by law.
Joe Hunn Project Manager 8/7/23 Name: Joe Hunn Title Date
File details come from the government source that posted it. Updated .