addenda #2.pdf

PDF 2 MB Posted

Attached to
Bid #9 HEMV 2026-2027 - Pool Facility Renovation at Kennedy Memorial Park
Solicitation number
2137057
Issued by
Nassau County, New York

About this file

This is Addendum #2 to the final bid document for the Pool Facility Renovation at Kennedy Memorial Park in the Village of Hempstead, New York, prepared by H2M architects and engineers. The addendum contains detailed technical drawings and specifications for pool site infrastructure improvements, including drain valve vaults, spray park tank overflow systems, and access hatch installations. The project specifications detail the construction requirements for motorized butterfly valves (6-inch and 10-inch), automatic level controllers with stilling tubes, Tideflex in-line check valves, sump pump installations, and precast concrete structures with specified compressive strength of 4,000 PSI at twenty-eight days. The drawings indicate specific elevation levels, reinforcement specifications, pipe sizing (ranging from 1.5-inch to 12-inch diameter), and structural support requirements including H-20 loading capacity for certain components.

The addendum establishes concrete construction standards, waterproofing requirements using Kent Seal cementitious waterproofing mortar, and detailed specifications for access hatches including a 48" x 72" double leaf model by Bilco with stainless steel components and safety features. All reinforcing steel cover requirements are specified at 1.5 inches for precast concrete and 2 inches for poured concrete, with reinforcement patterns detailed for walls and structural supports. The document is dated July 30, 2026, and includes professional certification by Joseph J. Todaro, P.E., a New York licensed professional engineer. This addendum serves as a binding modification to the original bid documents and must be incorporated into all contractor proposals and construction work.

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Other files

File Type Posted
Appendix B.pdf PDF
BID 9 PROPOSAL PAGES.pdf PDF
addenda #3.pdf PDF
Appendix C.pdf PDF
Table of Contents.pdf PDF
011B.4- Proposal P1D - Contract E.pdf PDF
Revised Section 225116 - Aquatic Pumps.pdf PDF
2026-27 Bid 9 Notice.doc DOC document
HEMV2602 - Addendum No. 1 - 07.28.2026.pdf PDF
Revised Plans.pdf PDF
Appendix A.pdf PDF
Revised Section 225119 - Aquatic Filtration System.pdf PDF
addenda #2 part 2.pdf PDF
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Text version

0'

- 9

NEW 10" MOTORIZED BUTTERFLY VALVE NEW BLOW-OFF PIT BY CONTRACT G, SEE 'C'

DRAWINGS

4' x 6' ACCESS HATCH MI N.9″

3/4"

CORP.

STOP

CONCRETE

THRUST BLOCK

3/4" CURB STOP

CURB BOX AND COVER

FINISHED GRADE

1 1/2" PVC PIPE WITH 24 MESH STAINLESS STEEL

VALMATIC OUTLET SCREEN

SUPPORT PIPE FROM MOVEMENT

NEW FRP LADDER

7' - 0"

5'

- 1

0"

4' - 0″

8' - 4"

6"-DR

XS 500

NEW TIDEFLEX IN-LINE CHECK VALVE

NEW AUTOMATIC LEVEL CONTROLLER WITH STILLING TUBE

EL. 61.5EL. 61.5

EL. 58.0

NOTE:

CONCRETE SHALL HAVE AN AVERAGE COMPRESSIVE

STRENGTH OF 4,000 PSI IN TWENTY EIGHT (28) DAYS.

NOTE:

COVER FOR REINFORCED STEEL SHALL

BE 1 1/2" FOR PRECAST CONC., BUT

SHALL BE 2" FOR POURED CONCRETE.

NYS TYPE 2 GRAVEL 0' - 8"

2' - 0″ X 4' - 0″0' - 8"

NEW 6" MOTORIZED

BUTTERFLY VALVE

1 1/2" X 1 1/2" X 1 1/2" FRP GRATING SUPPORTED BY

3" X 3" X 3/8" FRP LEDGE ANGLE ALL AROUND

x x x x x x x WWF 6x6 - W4xW4 REINF.

CONTINUOUS IN 4 WALLS

IF PRECAST STRUCTURE

IS USED

CONC.

SUPPORT

PIER

WALL SLEEVE AND LINK SEAL

TYPICAL ALL OPENINGS

5'- 0″

1'

- 0

#4 @ 8" o.c. HORIZ.

#4 @ 16" o.c. VERT.

1 1/2"

CL.�

0' - 8"

XS 500

XS 500

FROM SPRAY PARK DRAIN

TO

S

PR

AY

P

AR

K

TA

NK

TO DRYWELL

NEW LADDER

"-D

R

"-D

R

INVERT EL. 50.0

6"-DR

NEW 6" CHECK VALVE

5'

- 0

XS 500

5'

- 1

0"

2' - 8"

NEW 6"Ø OVERFLOW

PIPING FROM SPRAY

PARK TANK

NEW SUMP PUMP

NEW 6"Ø DRAIN PIPING

FROM DRAIN VALVE

VAULT

NEW 6"Ø

BALANCING TANK

OVERFLOW PIPING

2'

- 8

3/ 4"

FROM BALANCING TANK

NEW TIDEFLEX IN-LINE

CHECK VALVE, TYP. OF 3

NEW AUTOMATIC

LEVEL CONTROLLER

WITH STILLING TUBE EL. 61.5

3'

- 6

3/ 8"

FROM SPRAY PARK TANK

3'

- 0

5/8

PRECAST SECTION

KENT SEAL

CEMENTITIOUS

WATERPROOFING

MORTAR

TONGUE

GROOVE

5-1 /2"

, T

YP

2", TYP.

1-1/2" DRAIN COUPLING

WELDED UNDER FRAME

FOR PIPE CONNECTION

CHANNEL SUPPORT SHELF MUST BE

SUPPORTED BY CONCRETE OR STEEL

TO CARRY H-20 LOADING

HEAVY DUTY CHAIN

SLAM LOCK

REMOVABLE COVER PLUG

REMOVABLE SQUARE KEY

WRENCH

1/4" ALUMINUM DIAMOND

PATTERN PLATE COVER

HEAVY DUTY FORGED STAINLESS

STEEL HINGES WITH STAINLESS

STEEL PINS

STAINLESS STEEL AUTOMATIC HOLD

OPEN ARM AND COVER RELEASE 1/4" ALUMINUM CHANNEL FRAME WITH

RECESSED ANCHORS

1/8" Ø NEOPRENE CONTINUOUS

BUMPER ALL AROUND STAINLESS STEEL SPRING

LIFTING MECHANISM AND

HOUSING 1/4" SUPPORT PLATE

WELDED TO FRAME

SUPPORT - QUANTITY

VARIES WITH SIZE

GUIDE ARM

FR

AM

E

OP

EN

IN

G

LE

NG

TH

, S

EE

P

LA

N

OV

ER

AL

L L

EN

GT

H

2" , T

YP

2" , T

YP

CHANNEL SUPPORT

SHELF

FRAME OPENING WIDTH, SEE PLAN

OVERALL WIDTH

CLEAR OPENING

FRAME OPENING WIDTH - 7"

SUPPORT SHELF

5-1 /2"

, T

YP

-11

/16

TY

P.

3-1 /2"

, T

YP

3", TYP.

PROVIDE 1-1/2"Ø SCHEDULE 80 PVC DRAIN PIPE,

EXTEND THROUGH NEAREST WALL TO EXTERIOR

OF STRCTURE. PLACE #200 GRAVEL AROUND

DISCHARGE POINT

SAFETY GRATE

RED VINYL GRIP

CENTER DRIP CHANNEL CUT INTO MAIN

CHANNEL FRAME AT EACH END

CONTINUOUS ANCHOR FLANGE

DOOR REINFORCING

FLUSH LIFT HANDLE AND RECESSED

PAD LOCK HASP (NOT SHOWN)

CONTINUOUS

ANCHOR FLANGE

1 1/4", TYP.

3 1 /2"

, T

YP

48" X 72" DOUBLE LEAF

ACCESS HATCH BY

BILCO, MODEL JD-3AL

Exp. Date

"IN ACCORDANCE WITH ARTICLE 145, SECTION 7209 OF THE NYS EDUCATION LAW,

ALTERATION OF THIS DOCUMENT EXCEPT BY A LICENSED PROFESSIONAL IS ILLEGAL"

architects engineers

SHEET No.

SHEET TITLE

REVIEWED BY:DRAWN BY:DESIGNED BY:

PROJECT No: DATE:

CHECKED BY:

CONSULTANTS:

CONTRACT

CLIENT

STATUS

SCALE:

AS SHOWN

DRAWING No.

OF

538 Broad Hollow Road, 4th Floor East Melville, NY 11747

631.756.8000 ▪ www.h2m.com NY Architecture & Landscape Architecture: No Certificate Required

NY Engineering Certificate of Authorization No.: 0018178

JOSEPH J. TODARO, P.E.

NY PROFESSIONAL ENGINEER Lic. No. 071079

05/31/2029

7/

/2

3:

:2

PM

Au to de sk

D oc s:

//K en ne dy M em or ia l P ar k

Po ol

F ac ilit y/

H

EM

V2

2_ C en tra l2 5_

M .rv t

XS 500

FINAL BID DOCUMENT

Pool Facility Renovation at Kennedy Memorial Park

Inc. Village of Hempstead

C. MARTINEZ

JULY 2026HEMV2502

335 Greenwich St.

Hempstead, NY

16100

POOL SITE DETAILS

CONTRACT X

POOL CONSTRUCTION

G. AURICCHIO Checker Approver

SCALE: 1/2" = 1'-0"4 Drain Valve Vault - Section

SCALE: 1/2" = 1'-0"1 Drain Valve Vault Plan N SCALE: 1/2" = 1'-0"2 Spray Park Tank Overflow - Section 3 Precast Waterstop Joint

SCALE: NTS | H2M: 03X-2/6

5 Double Leaf Access Hatch Detail

SCALE: NTS | H2M: GEN-101-V1

MARK DATE DESCRIPTION

2 07-30-2026 BID ADDENDUM NO. 2

2026-07-30T15:56:26-0400
NY PE under
I have reviewed this document

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