Addendum 1 Cherry Ridge Drainage Improvements

ADDENDUM NO. ONE ISSUE DATE: October 22, 2026
SOLICITATION DATED: October 14, 2026
PROJECT: Cherry Ridge Drainage Improvements #27-03
CLARIFICATIONS AND QUESTIONS
CLARIFICATIONS:
1. The project plan sheets C100, C200, C300, C310, C501 and C502 have been REVISED.
2. The Bid Form has been REVISED to include an ADD ALTERNATE. The previous Bid Form will not
be accepted.
3. The Bid Form and Plan Sheets now reflect a change in scope of work for the rear and side yards of 226
and 230 Kwanzan Drive. The ADD ALTERNATE also includes fence removal and replacement.
4. An adjacent property owner, Jason Cottrell at 803.397.4108, has expressed interest in receiving
millings associated with this project. The OWNER (Town of Lexington) has made no assurance that
this will happen. Any arrangement will be between the CONTRACTOR and property owner.
5. Quality Control testing will be handled by the OWNER. The CONTRACTOR must follow
manufacture's and/or SCDOT specifications pertinent to the subject matter.
6. The Town of Lexington Utilities Department will relocate the 6-inch water main shown on the plans.
Coordination and scheduling will be required of the CONTRACTOR.
7. All water services impacted during construction will be handled by the Town.
QUESTIONS:
1. Is the Sod identified on the erosion control plan in addition to the landscape allowance? Does it need to
be carried in lump sum erosion control item?
Answer: Erosion Control is specific to installing and maintaining controls during construction,
grass sod or stabilization specific to each location will be funded through the allowance at an agreed
to price for cost of materials and installation.
2. There is a pavement removal item and a milling of asphalt item in the bid sheet. Is that a duplicate bid
item?
Answer: The Lump Sum Pavement Removal has been removed from the BID FORM.
3. There is a note on the plans that says clean existing pipes. That is pretty broad. Can you add a line item
per Linear Foot for "cleaning Existing Pipe?
Answer: CONTRACTOR shall only be responsible for cleaning of newly installed pipe.
1

4. Concerning the garden located at 230 Kwanzan Drive that will be demolished, what will be the
requirements if any to restore the garden?
Answer: Work shall be limited to the space provided within the pipe easement as shown on the plans
and restored with fine grading and stabilization.
5. Instead of flow fill, can standard backfill material per SCDOT specifications be used?
Answer: Yes. The Bid Form has been revised to include both contingent flowable fill and contingent
stone backfill that meet pipe manufacturer and SCDOT specifications for backfill around the pipe.
Open graded stone used for backfill, must be wrapped in filter fabric and contractor to provide a
minimum 8" Compacted GABC over fabric prior to 4" asphalt patching of trench. If using stone
backfill outside pavement areas, contractor to wrap stone and provide 18" earth backfill over trench
fabric.
6. Can the double pipe headwall and the storm drain box located in the backyard of 226 Kwanzan Drive be
hand built?
Answer: Yes, per the details provided on the REVISED plan sheets.
7. Who is responsible for moving residential streetlight located between 230 and 234 Kwanzan Drive?
Answer: Dominion Energy will remove streetlight pole and replace it once work is complete.
8. If contractor equipment damages curb while digging in roadway, will curb need to be replaced?
Answer: A contingent remove and replace rolled curb item has been added to the REVISED bid form;
however, CONTRACTOR shall avoid or protect curb as much as possible to mitigate damages.
9. Can concrete pipe be used between two houses instead of HP storm pipe?
Answer: Yes.
ATTACHMENTS
REVISED BID FORM
REVISED PROJECT PLAN SHEETS
DEADLINE FOR QUESTIONS: October 26, 2026, at 4:00 PM
BID OPENING DATE: October 29, 2026, at 3:00 PM
END ADDENDUM 1
2

Page 1 of 2
REVISED
BID FORM
Cherry Ridge Drainage Improvements
ITEM UNIT
PAY ITEM QUANTITY UNIT TOTAL
NO. PRICE
1031000 MOBILIZATION 1 LS
1071000 TRAFFIC CONTROL 1 LS
2011000 CLEARING & GRUBBING 1 LS
2031000 UNCLASSIFIED EXCAVATION - DISPOSE OFFSITE 1 LS
2052000 STONE BACKFILL 300 CY
2081001 FINE GRADING (YARD RESTORATION) 200 SY
2081002 PAVEMENT SUBGRADE PREPARATION 1445 SY
2103000 CONTINGENT FLOWABLE FILL 50 CY
4012040 FULL DEPTH ASPH. PAV. PATCHING 4" UNIF 81 TON
MILLING EXISTING ASPHALT PAVEMENT (2"
4013990 1075 SY
VARIABLE)
4040340 ASPHALT SURFACE COURSE - TYPE C 120 TON
7010057 BEDDING STONE WITH FABRIC 110 TON
7140015 15" STORM PIPE 10 LF
7141136 36" STORM PIPE 417 LF
7140042 42" STORM PIPE 106 LF
7140442 42" CLASS IV RCP 68 LF
7191104 TYPE 1 CATCH BASIN COMPLETE 2 EA
7192248 JUNCTION BOX 4 EA
7201000 CONTINGENT ROLLED CONCRETE CURB 400 LF
7224201 42" PRECAST HEADWALL 1 EA
8041020 RIP RAP CLASS B AND DITCH RESHAPE 50 SY
8081000 MOVING ITEMS (MAILBOXES, SIGNS, YARD MISC ITEMS) 1 LS
8121000 EROSION CONTROL 1 LS
SP1 TYPE 2 CATCH BASIN w/JUNCTION BOX 1 EA
SP2 LANDSCAPE ALLOWANCE (SOD, MULCH, ETC) - - NA $6,000.00
CONTINGENT REMOVE AND REPLACE FENCE (321
SP3 50 LF
KWANZAN DRIVE)
Total Base Bid = $__________________________________
Page 1 of 2

Page 2 of 2
REVISED
BID FORM
Cherry Ridge Drainage Improvements
Add Alternate #1
ITEM UNIT
PAY ITEM QUANTITY UNIT TOTAL
NO. PRICE
2011000 CLEARING & GRUBBING 1 LS
2031000 UNCLASSIFIED EXCAVATION - DISPOSE OFFSITE 1 LS
2052000 STONE BACKFILL 50 CY
2081001 FINE GRADING (YARD RESTORATION) 400 SY
7010057 BEDDING STONE WITH FABRIC 20 TON
7140018 18" STORM PIPE 124 LF
7140030 30" STORM PIPE 100 LF
7161606 DUAL YARD INLET - BUILD IN PLACE 1 EA
7221801 DUAL 18-INCH ENDWALL 1 EA
8081000 MOVING ITEMS (MAILBOXES, SIGNS, YARD MISC ITEMS) 1 LS
8121000 EROSION CONTROL 1 LS
REMOVE AND REPLACE FENCE (226, 230, 236 KWANZAN
SP 3 120 LF
DRIVE)
Total Alternate = $__________________________________
Total Bid = $__________________________________
Total Bid In Words:____________________________________________________________________________
COMPANY:______________________________________AUTHORIZED SIGNATURE: ____________________________
The Certificate of Familiarity in bid packet must be returned with bid.
Page 2 of 2

KEYNOTES
S : 1
1. CONTRACTOR TO REMOVE EXISTING FENCEPOSTS AS REQUIRED
FOR STORM DRAIN WORK. COORDINATE SCHEDULING WITH
HOMEOWNERS AND TOWN AT LEAST 48 HOURS IN ADVANCE
S
2. REMOVE EXISTING STORM DRAIN STRUCTURE COMPLETE. FOR
STRUCTURES AT ROADWAY, REMOVE CONCRETE CURB AND
THROAT AS REQUIRED.
3. TOWN OF LEXINGTON UTILITY DEPT TO REMOVE EXISTING 6" WATER
S
MAIN COMPLETE ONCE NEW VERTICAL BEND RELOCATION IS READY
FOR INSTALL. COORDINATE SHUT DOWN WITH TOWN OF LEXINGTON
UTILITY DEPT. CONTRACTOR TO OPEN CUT AND EXCAVATE FOR
RELOCATION WORK AND BACKFILL UNDER TOWN SUPERVISION AS
REQUIRED.
4. EXISTING STORM PIPE TO REMAIN ACTIVE DURING AND POST
CONSTRUCTION.
S S
W W 5. REMOVE EXISTING STORM DRAIN PIPE COMPLETE. CONTRACTOR
TO USE TRENCH BOX TO LIMIT TRENCH WIDTH WHEN WORKING
NEAR HOUSES. ONLY EXCAVATE WHAT CAN BE BACKFILLED THE
SAME DAY WHEN WORKING NEAR HOMES.
S 6. REMOVE EXISTING PRECAST HEADWALL COMPLETE DEMOLITION NOTES:
7. LOCATE EXISTING GAS, ELECTRIC, SEWER SERVICE AS REQUIRED
W
PRIOR TO CONSTRUCTION 1. SEE SHEET C001 FOR CIVIL COVER SHEET AND GENERAL NOTES.
8. DOMINION TO REMOVE EXISTING POWER POLE PRIOR TO STORM
2. PROTECT ALL EXISTING UTILITIES SCHEDULED TO REMAIN. IF INTERRUPTION OF
REMOVAL. COORDINATE WITH DOMINION - POLE 549242
S EXISTING UTILITY IS NECESSARY, CONTACT TOWN OF LEXINGTON AND UTILITY
9. REMOVE EXISTING ASPHALT SURFACE COMPLETE AND PREP FOR PROVIDER
NEW HMA SURFACE.
W 3. PROTECT ALL EXISTING PAVEMENT SCHEDULED TO REMAIN. REPAIR ANY
S 10.EXISTING MAILBOX NEEDS RELOCATION DURING CONSTRUCTION
PAVEMENT DAMAGED BY CONSTRUCTION ACTIVITIES.
11.PROVISION ITEM 1 - REMOVE EXISTING ROLLED CURB AS REQUIRED
FOR NEW STORM STRUCTURE 4. CONTRACTOR TO TAKE VIDEO, PHOTGRAPHS, ETC TO DOCUMENT BACKYARD
CONDITIONS PRIOR TO PERFORMING ANY WORK.
W W W 12.EXISTING HDPE STORM PIPE TO REMAIN IN PLACE - SEE GRADING
D
S S PLAN FOR PARALLEL PIPE INSTALLATION. REMOVE UPSTREAM AND 5. REPLACE ANY DAMAGED YARDS WHERE CONSTRUCTION ACCESS MAY NEED TO
DOWNSTREAM STRUCTURE COMPLETE. OCCUR. IF GRASS AREAS, REPLACE WITH NEW SOD.
13.CONTRACTOR TO REVIEW CONDITION OF ROLLED CURB WITH TOWN
6. CONTRACTOR TO MAKE SURE A TRAVEL LANE OF ACCESS IS PROVIDED AT ALL
W OFFICIALS AFTER STORM INSTALLATION AND REPLACE AS
DS TIMES TO RESIDENTIAL PROPERTIES. PROVIDE STEEL PLATES OVER TRENCH, ETC.
REQUIRED PRIOR TO REPAVING OPERATION.
AS REQUIRED TO MAINTAIN ACCESS TO EACH RESIDENTIAL DRIVEWAY AFTER EACH
S GIVEN DAY.
W
DS W
7. CONTRACTOR TO CONDUCT PRIVATE UTILITY LOCATE ALONG ALL TRENCH PATHS
PRIOR TO CONSTRUCTION. LOCATE ALL UTILITIES SERVING 230, 234, 321, AND 326
KWANZAN DRIVE PRIOR TO CONSTRUCTION AND CONFIRM ANY CROSSING DEPTHS
S
S DS W BY HAND DIGPOTHOLE PRIOR TO MOBILIZING
W
W
DS
S
DS SD
SD
S W EXISTING SITEDEMOLITION LEGEND
X WV
W WATER LINE W VALVE W
X S D S D WATER SERVICE WS
S
SANITARY SEWER PIPE S SD
X
SANITARY SEWER - FORCE MAIN FM
SD S D S SD W SD SANITARY SEWER SERVICE SS
STORM DRAIN
X UNDERDRAIN PIPE UD
SD S SD SD
ROOF DRAIN PIPE RD
S D W
W FENCE X
SD SD
X SD POWER LINE (OVERHEAD) P
S W
POWER LINE (UNDERGROUND) UP SD X S DW
TELEPHONE LINE (OVERHEAD) T
X
TELEPHONE LINE (UNDERGROUND) UT
GV
S GAS LINE G
W
FIBER OPTIC LINE FO
SSMH
SANITARY SEWER MANHOLE S S
CO
S SANITARY SEWER CLEANOUT
W
S W CATCH BASIN CB
S
DROP INLET DI
S
W
S HOODED CURB INLET HCI
.
CURB INLET CI
.
WATER METER
W
S FIRE HYDRANT FH
S NCM
W
ELECTRICAL TRANSFORMER E FWG
S POWER POLE PP NCM
LP
LIGHT POLE
W
W CONTOUR 325
S
ITEMS TO BE DEMOLISHED
S
S SAW CUT AND REMOVE EXISTING W W
ASPHALT WITHIN LIMITS SHOWN
DS DS DS S
DS DS S SAW CUT AND REMOVE EXISTING
S CONCRETE WITHIN LIMITS SHOWN
DS X X
S
S EXISTING CONDITIONS
PROPERTY LINE
LIMITS OF CONSTRUCTION LOD AND DEMOLITION PLAN
LIMITS OF DISTURBANCE
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10142026
4
2
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ENGI NEERI NG
13
7436 BROAD RIVER ROAD, SUITE 212
12 1 1 IRMO SC 29063
7 9
803-732-7080
ADCENGINEERING.COM
5
4
12
2
13
1
CONTRACTOR SHALL CONTACT 811
9 (1-888-721-7877) FOR LOCATIONS OF ALL
UTILITIES AT LEAST 72 HOURS PRIOR TO
BEGINNING CONSTRUCTION.
ADD ALTERNATE 1: Knowwhat's
below
.
Call
ADD SCOPE OF WORK FROM PIPE STARTING AT NEW CB-A7 THROUGH DUAL HEADWALL A9 INCLUDING beforeyoudig.
WORK BETWEEN HOUSES AND IN BACKYARDS AT 226-234 KWANZAN DRIVE
DATE: 10142026
ADC PROJECT : 26295
DESIGNED: CWC
13 CHECKED: CWC
13 DRAWN: MDJ
REVISION:
1 ADDENDUM 1 2026-10-21
2
9 5
1
5
3
10
7
6
C100
PERMIT DOCUMENTS

X
X
X
X
X
X
X LP X
X
X X
X
X
X
X X
X
X X
X
X
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SITE NOTES:
1. SEE SHEET C001 FOR CIVIL COVER SHEET AND GENERAL
NOTES.
2. CONTRACTOR TO COORDINATE AND COMMUNICATE WORK
ON PRIVATE RESIDENTIAL PROPERTIES AT LEAST 48 HOURS
IN ADVANCE.
3. CONTRACTOR TO ENSURE ACCESS IS PROVIDED TO EACH
RESIDENCE AT THE END OF A WORK DAY. PROVIDE
TEMPORARY MEASURES OF STEEL PLATETRENCH
PROTECTION, WITH BARRICADES ETC. TO ENSURE SAFE
ACCESS IS PROVIDED TO EACH RESIDENTIAL DRIVEWAY.
KEYNOTES
: 1
1. INSTALL NEW 6' HIGH WOOD FENCEPOSTS TO MATCH EXISTING ONCE
WORK IS COMPLETE
2. RESTORE YARDS BY FINE GRADING AND INSTALLING NEW CENTIPEDE
SOD ON ALL AREAS DISTURBED ON RESIDENTIAL PROPERTIES
3. REMOVE EXISTING ASPHALT SURFACE COURSE AND RESURFACE WITH
NEW 2" COMPACTED HMA TYPE C SURFACE ONCE STORM INSPECTIONS
ARE COMPLETE. RESURFACE OPEN CUT TRENCH WITH 4" COMPACTED
SURFACE COURSE.
4. INSTALL NEW ROLLED CURB AS REQUIRED FOR STORM INSTALLATION
PROVISION ITEM 1 5. COORDINATE WITH DOMINION REINSTALLATION OF NEW STREET LIGHT
ONCE NEW STORM DRAIN INSTALL IS COMPLETE
6. PROVISION ITEM 1 - INSTALL NEW CONCRETE CURB, THROAT AND
APRON FOR NEW STORM DRAIN CATCH BASIN
CIVIL LEGEND - SITE
6
NEW ASPHALT SURFACE OVERLAY - INSTALL IAW DETAIL
NEW SOD
ROLLED CURB AND GUTTER - IAW DETAIL
X X X NEW WOOD FENCE
PROPERTY LINE 10142026
1
4
ENGI NEERI NG
3
7436 BROAD RIVER ROAD, SUITE 212
IRMO SC 29063
5 803-732-7080
2 ADCENGINEERING.COM
2
1
1
CONTRACTOR SHALL CONTACT 811
(1-888-721-7877) FOR LOCATIONS OF ALL
UTILITIES AT LEAST 72 HOURS PRIOR TO
K
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ADD ALTERNATE 1:
DATE: 10142026
ADD SCOPE OF WORK FROM PIPE STARTING AT NEW CB-A7 THROUGH DUAL HEADWALL A9 INCLUDING
WORK BETWEEN HOUSES AND IN BACKYARDS AT 226-234 KWANZAN DRIVE
ADC PROJECT : 26295
DESIGNED: CWC
CHECKED: CWC
DRAWN: MDJ
REVISION:
1 ADDENDUM 1 2026-10-21
3
2
4
1
SITE
PLAN
C200
PERMIT DOCUMENTS

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266
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265 V
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264
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GU P P U
262
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P 260
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TYPE 2 CBG B1
258
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256
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255 W VTU
254 PUGX
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253
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UP DU STV
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2 J 4 B 7 -A6 W SDVTU PU SD 22 44 55 2 4 4 2 4 3 2 4 2
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UP 36" RCP
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246
2 4 5
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244
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DUAL HW-A9
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250 REPLACE TYP
(B
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TOWN OF LEXINGTON TO RELOCATE 6"
WATER MAIN. CONTRACTOR TO PERFORM
EXCAVATION AND BACKFILL
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GRADING AND DRAINAGE NOTES
:
1. SEE SHEET C001 FOR CIVIL COVER SHEET AND GENERAL NOTES.
2. CONTRACTOR SHALL COORDINATE ALL SITE UTILITIES AND STORM DRAINAGE
INSTALLATION SCHEDULES TO AVOID POTENTIAL UTILITY CONFLICTS. GRAVITY
DEPENDENT UTILITIES SHALL BE INSTALLED PRIOR TO NON-GRAVITY DEPENDENT
UTILITIES.
3. LOCATE AND HAND DIG TO CONFIRM ALL EXISTING UTILITY CROSSINGS (CABLE,
ELECTRIC, GAS, WATER, SANITARY) PRIOR TO ORDERING ANY MATERIALS.
4. CLEAN OUT ALL SEDIMENT AND DEBRIS FROM ALL EXISTING AND NEW STORM
DRAINAGE PIPES AND STRUCTURES AT THE END OF CONSTRUCTION.
5. PROVIDE STORM DRAINAGE AS-BUILTS IAW SPECIFICATIONS.
6. SEE SHEET C310 FOR STORM DRAINAGE PROFILES.
7. ALL JUNCTION BOX RIMS IN THE ROADWAY TO BE ADJUSTED TO BE FLUSH WITH
FINAL ASPHALT SURFACE
8. CONTRACTOR HAS THE OPTION TO INSTALL RCP OR HP STORM WITH THE
EXCEPTION OF THE 42" PIPE FROM STRUCTURE A3 TO A2 WHICH IS TO BE CLASS IV
RCP.
KEYNOTES
PROVISION ITEM 1 : 1
1. INSTALL 22 SY SCDOT CLASS B RIP RAP ON FABRIC TO TRANSITION
EXISTING CHANNEL INTO NEW HEADWALL. PROTECT AND SAVE
EXISTING MAGNOLIA TREE IN THIS AREA.
2. LOCATE ALL EXISTING UTILITY CROSSINGS AND HAND DIG TO
CONFIRM ELEVATIONS PRIOR TO ORDERING MATERIALS.
3. COORDINATE RELOCATION OF EXISTING 6" WATER MAIN WITH
TOWN OF LEXINGTON UTILITY DEPT. SEE DETAIL FOR REFERENCE.
COORDINATE SHUT DOWN OF SERVICE AND TESTING OF NEW MAIN
WITH TOWN OF LEXINGTON UTILITY DEPT. CONTRACTOR TO MAKE
EXCAVATION FOR REQUIRED WORK AREA AND BACKFILL ONCE TOWN HAS NEW MAIN IN OPERATION.
4. LOCATE AND VERIFY ALL EXISTING WATER SERVICE CROSSINGS. 5
RELOCATE EXISTING WATER SERVICE AS NECESSARY.
COORDINATE WITH TOWN OF LEXINGTON UTILITY DEPT.
5. INSTALL DOGHOUSE JUNCTION BOX OVER EXISTING RCP.
EXISTING CROSS LINE PIPE TO REMAIN ACTIVE.
6. CONTRACTOR TO PERFORM CLEARING AS NECESSARY TO
RESHAPE OUTFALL DITCH SIDE SLOPES AND INSTALL 50 SY SCDOT 10142026
CLASS B RIP RAP ON FABRIC TO ARMOR CHANNEL.
7. CONTRACTOR TO EXTEND EXISTING 18" PE PIPE APPROXIMATELY
10' TO NEW HEADWALL LOCATION.
5
8. CONTRACTOR TO BUILD IN PLACE NEW STRAIGHT HEADWALL FOR 1 DUAL 18" PE PIPES.
9. CONTRACTOR TO INSTALL A NEW 18" HP STORM IN PARALLEL WITH
EXISTING 18" PIPE AT SIMILAR GRADE.
4 10. CONTRACTOR TO BUILD IN PLACE A NEW DOUBLE YARD INLET TO 7
RECEIVE DUAL 18" PIPES. SEE DETAIL FOR TYP YARD INLET. ENGI NEERI NG CONTRACTOR MAY USE A SINGLE PRECAST TOP ON PEDESTALS.
11. CONTRACTOR TO USE TRENCH BOX TO LIMIT TRENCH WIDTH
BETWEEN HOUSES. ONLY EXCAVATE WHAT CAN BE BACKFILLED 8 2 7436 BROAD RIVER ROAD, SUITE 212 THE SAME DAY WITH EXCAVATABLE FLOWABLE FILL. DO NOT USE
VIBRATORY COMPACTION EQUIPMENT NEAR HOMES. IRMO SC 29063 4 12. PRIOR TO FINAL PAVING OPERATIONS, CONTRACTOR TO REVIEW 803-732-7080 EXISTING ROLLED CURB CONDITION AND REPLACE DAMAGED CURB
ADCENGINEERING.COM AT TOWN DIRECTION AT UNIT PRICE PROVIDED IN CONTRACT
DOCUMENTS.
11
9
CIVIL LEGEND - GRADING AND DRAINAGE
10
5 12
JB JUNCTION BOX - INSTALL IAW DETAIL
4
HOODED CURB INLET - INSTALL IAW DETAIL CONTRACTOR SHALL CONTACT 811
.
(1-888-721-7877) FOR LOCATIONS OF ALL
_ 2'X3' DROP INLET - INSTALL IAW DETAIL UTILITIES AT LEAST 72 HOURS PRIOR TO
BEGINNING CONSTRUCTION.
Knowwhat's
below
.
TYPE 16 CURB INLET - INSTALL IAW DETAIL
Call
12 . beforeyoudig.
TYPE 9 YARD INLET - INSTALL IAW DETAIL
. 4
ADD ALTERNATE 1: STORM DRAINAGE MANHOLE - INSTALL IAW DETAIL DATE: 10142026
ADD SCOPE OF WORK FROM PIPE STARTING AT NEW CB-A7 THROUGH DUAL HEADWALL A9 INCLUDING
WORK BETWEEN HOUSES AND IN BACKYARDS AT 226-234 KWANZAN DRIVE ADC PROJECT : 26295
CFB CONFLICT BOX - INSTALL IAW DETAIL
DESIGNED: CWC
RCB RECONSTRUCTED CATCH BASIN - RECONSTRUCT IAW DETAIL
CHECKED: CWC
STORM DRAINAGE PIPE (SEE PROFILE FOR SLOPE AND DRAWN: MDJ
MATERIAL) - INSTALL IAW DETAIL
12 REVISION:
HEADWALL - INSTALL IAW DETAIL . 1 ADDENDUM 1 2026-10-21
310.00 NEW FINISHED GRADE SPOT ELEVATION
3
310 NEW FINISHED CONTOUR
4
EG:310.00 EXISTING GRADE SPOT
310 EXISTING GRADE CONTOUR
DRAINAGE FLOW ARROW 5
DRAINAGE SWALE
STORM
2 3:1 SLOPE AND SLOPE DIRECTION
SEGMENTAL BLOCK RETAINING WALL DRAINAGE PLAN
PERMANENT RIP RAP APRON - INSTALL IAW DETAIL .
6
EMERGENCY SPILLWAY - INSTALL IAW DETAIL
C300
PROPERTY LINE
W NEW 6" WATER MAIN - INSTALL IAW DETAIL
PERMIT DOCUMENTS

264 264
260 260
256 256
252 252
248 248
244 244
240 240
236 236
232 232
228 228
225 225
-0+10
SD LINE A PROFILE
:GE :GF
0+00
89.232:GE 89.232:GF
0+25
29.732:GE 29.732:GF
0+50
59.832:GE 59.832:GF
0+75
79.832:GE 79.832:GF
1+00
25.832:GE 25.832:GF
1+25
91.832:GE 91.832:GF
1+50
38.832:GE 38.832:GF
1+75
00.932:GE 00.932:GF
2+00
00.932:GE 00.932:GF
2+25
53.932:GE 53.932:GF
2+50
89.932:GE 89.932:GF
2+75
30.042:GE 30.042:GF
3+00
79.042:GE 79.042:GF
3+25
99.042:GE 99.042:GF
3+50
00.142:GE 00.142:GF
3+75
65.142:GE 65.142:GF
4+00
65.142:GE 65.142:GF
4+25
85.142:GE 85.142:GF
4+50
10.242:GE 10.242:GF
4+75
92.242:GE 92.242:GF
5+00
99.242:GE 99.242:GF
5+25
85.342:GE 85.342:GF
5+50
54.442:GE 54.442:GF
5+75
28.542:GE 28.542:GF
6+00
77.642:GE 77.642:GF
6+25
02.742:GE 02.742:GF
6+50
51.742:GE 51.742:GF
6+75
74.542:GE 74.542:GF
7+00
59.542:GE 59.542:GF
7+25
80.742:GE 80.742:GF
7+50
60.842:GE 60.842:GF
7+75
83.942:GE 83.942:GF
8+00
78.052:GE 78.052:GF
8+25
:GE :GF
106 LF 42" SD
@ 0.50
1A-WH
00.00+0:ATS
05.232:
EI
XOB
NOITCNUJ
-
3A-BJ
46.47+1:ATS
00.932:MIR
28.332:4A-BJ
EI
31.432:2BC
XE
EI
05.332:TUO
EI
163 LF 36" SD
@ 1.72
41 LF 36" SD
@ 0.51
XOB
NOITCNUJ
-
2A-BC
1
EPYT
ECALPER
73.60+1:ATS
51.832:MIR
90.332:3A-BJ
EI
30.332:TUO
EI
XOB
NOITCNUJ
-
6A-BJ
81.97+5:ATS
60.642:MIR
57.932:7A-BC
1
EPYT
ECALPER
EI
'39.932
=
TSIXE
PCR
"81
EI
08.832:TUO
EI
XOB
NOITCNUJ
- 7A-BC
1
EPYT
ECALPER
01.09+5:ATS
92.642:MIR
46.042:8A-IY
ELBUOD
EI
'97.042=PCR
"51
NI
EI
41.042:TUO
EI
8A-IY
ELBUOD
37.98+6:ATS 80.542:RIEW
52.242:9A-WH
LAUD
EI
21.142:TUO
EI
123 @
LF
5
1
.
8
4
"
9
SD
11 LF 36" SD
@ 3.57
68 LF 42" CLASS IV RCP
@ 0.60
XOB
NOITCNUJ
- 5A-BJ
21.61+4:ATS
34.142:MIR
00.632:6A-BJ
EI
51.632:1C
1BC-XE
EI
08.532:TUO
EI
100 LF 30" SD
@ 0.48
XOB
NOITCNUJ
-
4A-BJ
45.51+2:ATS
91.932:MIR
33.432:5A-BJ
EI
30.432:TUO
EI
UE SERVICE
GAS SERVICE
WATER SERVICE
WATER SERVICE
WATER SERVICE
WATER SERVICE
WATER SERVICE
201 LF 36" SD
@ 0.73
UE SERVICE 8" SEWER
GAS SERVICE
8" SEWER
6" SEWER
EXISTING 6" WATER
6" SEWER
RELOCATED NEW
6" DIP WATER
8" SEWER
9A-WH
LAUD
07.21+8:ATS
00.942:TUO
EI
268 268
264 264
260 260
256 256
252 252
250 250
-0+10
SD LINE B PROFILE
:GE :GF
0+00
06.752:GE 06.752:GF
0+25
:GE :GF
0+40
:GE :GF
8 LF 15" SD
@ 1.19
XOB
NOITCNUJ
-
1C-BJ
00+0
:ATS
57.752:MIR
'07.452=NI
VNI
BC
2
EPYT
-
1B
BC
2
EPYT
YFIREV
DLEIF=TUO
VNI
34.80+0:ATS
74.852:POT
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STNEMEVORPMI
EGANIARD
NOTGNIXEL
ANILORAC
HTUOS
STORM DRAINAGE PROFILE NOTES
:
1. SEE SHEET C001 FOR CIVIL NOTES AND ABBREVIATIONS.
2. CONTRACTOR HAS THE OPTION TO INSTALL RCP OR HP STORM
WITH THE EXCEPTION OF THE 42" PIPE FROM STRUCTURE A3 TO A2
WHICH IS TO BE CLASS IV RCP.
DRAINAGE PROFILE LEGEND
:
EXISTING GRADE
10-YR HYDRAULIC GRADE LINE
10142026
SP PROVISION 1
ENGI NEERI NG
7436 BROAD RIVER ROAD, SUITE 212
IRMO SC 29063
803-732-7080
ADCENGINEERING.COM
ADD ALTERNATE 1:
ADD SCOPE OF WORK FROM PIPE STARTING AT NEW CB-A7 THROUGH DUAL HEADWALL A9
INCLUDING WORK BETWEEN HOUSES AND IN BACKYARDS AT 226-234 KWANZAN DRIVE CONTRACTOR SHALL CONTACT 811
(1-888-721-7877) FOR LOCATIONS OF ALL
UTILITIES AT LEAST 72 HOURS PRIOR TO
BEGINNING CONSTRUCTION.
Knowwhat's below .
Call
beforeyoudig.
DATE: 10142026
ADC PROJECT : 26295
DESIGNED: CWC
CHECKED: CWC
DRAWN: MDJ
REVISION:
1 ADDENDUM 1 2026-10-21
STORM DRAIN
PROFILES
C310
PERMIT DOCUMENTS

TYPE 1 CATCH BASIN
A
CIVIL DETAILS
Xref 24109bor.dwg
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fo
nwoT
aniloraC
htuoS
,notgnixeL
noisividbuS
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STNEMEVORPMI
EGANIARD
NOTGNIXEL
ANILORAC
HTUOS
10142026
TYPE 1 CATCH BASIN - SIDE VIEW
B
ENGI NEERI NG
7436 BROAD RIVER ROAD, SUITE 212
IRMO SC 29063
803-732-7080
ADCENGINEERING.COM
CONTRACTOR SHALL CONTACT 811
(1-888-721-7877) FOR LOCATIONS OF ALL
UTILITIES AT LEAST 72 HOURS PRIOR TO
BEGINNING CONSTRUCTION.
Knowwhat's
below
.
Call
beforeyoudig.
DATE: 10142026
ADC PROJECT : 26295
DESIGNED: CWC
CHECKED: CWC
DRAWN: MDJ
REVISION:
1 ADDENDUM 1 2026-10-21
TYPE 2 CATCH BASIN
C STRAIGHT HEADWALL - BUILT IN PLACE
D
C501
PERMIT DOCUMENTS

RIP RAP APRON
A
CIVIL DETAILS
Xref 24109bor.dwg
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STNEMEVORPMI
EGANIARD
NOTGNIXEL
ANILORAC
HTUOS
NEW 6" DIAMETER MJ DIP
45 degrees BEND WITH MEGALUG
THRUST RETRAINT
TYP OF 4
STORM WATER CULVERT
L
E
N
G
T
(T
Y P
H
.) V A R IE N 45 E degrees W B E 6" N D D I A W M IT E H T E M R E M GA J L D U IP G
S
THRUST RETRAINT
TYP OF 4
RIP RAP TO BE SCDOT CLASS B SIZE
PER SCDOT SPEC 804, LATEST EDITION
NOTES:
1. ALL FITTINGS SHALL BE MECHANICAL JOINT DUCTILE IRON.
2. ALL FITTINGS SHALL BE RESTRAINED WITH MEGA LUG THRUST RETRAINTS
3. ALL NEW PIPE TO BE CLASS 350 DIP
4. WATER RELOCATION WORK TO BE DONE BY TOWN OF LEXINGTON WATER DEPT.
COORDINATE SHUT DOWN OF EXISTING MAIN WITH TOWN OF LEXINGTON AND 10142026
AFTER GIVING AMPLE NOTICE TO AFFECTED RESIDENTIAL PROPERTIES THAT
MAY BE TEMPORARILY WITHOUT WATER SERVICE. CONTRACTOR TO PERFORM
EXCAVATION AND BACKFILL OPERATIONS UNDER TOWN SUPERVISION
WATER MAIN RELOCATION VERTICAL OFFSET
C
NOT TO SCALE
ENGI NEERI NG
TOWN TYPICAL GRAVITYSEWER
D
SERVICE - FOR INFORMATION ONLY
7436 BROAD RIVER ROAD, SUITE 212
IRMO SC 29063
803-732-7080
ADCENGINEERING.COM
CONTRACTOR SHALL CONTACT 811
(1-888-721-7877) FOR LOCATIONS OF ALL
UTILITIES AT LEAST 72 HOURS PRIOR TO
BEGINNING CONSTRUCTION.
Knowwhat's
below
.
Call
beforeyoudig.
DATE: 10142026
ADC PROJECT : 26295
DESIGNED: CWC
CHECKED: CWC
DRAWN: MDJ
REVISION:
1 ADDENDUM 1 2026-10-21
1 ADDENDUM 1 2026-10-21
YARD INLET
C502
E
REINFORCED CONCRETE PIPE TRENCH
B
NOT TO SCALE
PERMIT DOCUMENTS