STATE OF NEW YORK OFFICE OF GENERAL … 01 C.pdfThe slide gate shall be a ... flow penetration pipes...

STATE OF NEW YORK OFFICE OF GENERAL SERVICES

DESIGN AND CONSTRUCTION GROUP THE GOVERNOR NELSON A. ROCKEFELLER

EMPIRE STATE PLAZA ALBANY, NY 12242

ADDENDUM NO. 1 TO PROJECT NO. 43307

CONSTRUCTION WORK

MARCELL ROTH DAM REHABILITATION PHASE III DESIGN AND CONSTRUCTION

TOWN OF KENT PUTNAM COUNTY, NY

July 2, 2013 NOTE: This Addendum forms a part of the Contract Documents. Insert it in the Project Manual.

Acknowledge receipt of this Addendum in the space provided on the Bid Form. CD FILE ERROR 1. The Contract Document CD (Disk 1 of 1) is missing Sheet 4 of 12 under the Contract Drawings

folder. Drawing 43307-C-C-103.TIF was mistakenly omitted. TABLE OF CONTENTS 2. Page 000110-3, Add the Following Title to the Appendix:

“Permit Conditions” SPECIFICATION GROUP 3. Page 033000-5, Article 2.01, Add the Following Paragraph:

“L. Low Flow Penetrations: Schedule 40 PVC pipe to the size and dimensions shown on the Contract Drawings.

1. The pipe penetrations shall be located as shown on the Contract Drawings.”

4. Page 055000 – 2, Change Paragraph 1.04 B. to Read:

“B. At least 4 weeks prior to the planned start date, submit shop drawings showing the dimensions of the railings, railing extent, base plate, and connection details required to complete the work.”

5. Page 055000 – 3, Paragraph 2.01 B.5: Delete this paragraph in its entirety.

ADDENDUM NO. 1 TO PROJECT 43307-C July 2, 2013

Project No.43307-C

6. Page 055000 – 4, Paragraph 2.03 A:

Replace 20 gauge with 12 gauge metal decking.

7. Page 055000 – 4, Change Paragraph 2.03 C. to Read:

“C. Metal decking should be fastened to framing with stainless steel self-tapping sheet metal screws installed at each rib contact.”

8. Page 055000 – 4, Change Paragraph 2.03 D. to Read:

“D. Framing shall be connected to concrete walls with stainless steel Hilti brand wedge-anchors as indicated on the design plans.”

9. 20523 – 2, Change Paragraph 2.02 A. to Read:

“A. The slide gate shall be a 900 Series Stainless Steel Gate as manufactured by Whipps, Inc. of Athol, Massachusetts, or an approved equal, meeting the requirements of the American Water Works Association (AWWA) Standard for Fabricated Stainless Steel Slide Gates (ANSI/AWWA C561-04 latest edition). This standard provides the minimum requirements for the slide gate valve, including materials, general design, manufacture, testing, inspection, and shipment.”

10. Page 220523-2, Article 2.02, Add the Following Paragraphs:

“E. The slide gate handle support shall be constructed of stainless steel. Aluminum pedestals are not acceptable.

1. The support height shall be such that the handwheel or pinion shaft on the crank-

operated gearbox is located approximately 36 inches above the concrete spillway. 2. Wall brackets shall be used to support floor stands where shown on the Contract

Drawings and shall be constructed of stainless steel. 3. Wall brackets shall be reinforced to withstand compression at least two times the

rated output of the operator with a 40-lb effort on the crank or handwheel. 4. The design and detail of the brackets and anchor bolts shall be provided by the

gate manufacturer and shall be approved by the Engineer. The gate manufacturer shall supply the bracket, anchor bolts, and accessories as part of the gate assembly.

F. All slide gate accessories shall be standard products provided by the manufacturer.” 11. Page 315200-1, Change Paragraph 1.01.F. to Read:

“F. Prior to removal of the dewatering structure, the water level should be equalized on both sides of the structure, with the structure remaining in place for a minimum of 3 weeks to allow for monitoring of the downstream portion of the dam. If issues arise during this monitoring period, the dewatering structure shall be re-established.”

APPENDIX 12. Appendix Addendum:

ADDENDUM NO. 1 TO PROJECT 43307-C July 2, 2013

Project No.43307-C

a. A section titled “Permit Conditions” has been added to the Appendix. It includes a list of anticipated conditions that must be strictly followed for all activities upon issuance of the final permit(s).

DRAWINGS 13. Addendum Drawing: a. Drawing No. C-103 (Sheet 4 of 12) has been added to the Contract Drawings. It was

mistakenly omitted from the original drawing package. 14. Revised Drawing: a. Drawing No. D-501 (Sheet 5 of 12), noted “REVISED DRAWING 7/2/2013”

accompanies this Addendum and supersedes the same numbered originally issued drawing. 1. Section 2/3/5, Section 3/3/5, and Section 4/5/5: The turf reinforcement mat has

been moved beneath the topsoil layer. 15. Revised Drawing: a. Drawing No. D-502 (Sheet 6 of 12), noted “REVISED DRAWING 7/2/2013”

accompanies this Addendum and supersedes the same numbered originally issued drawing. 1. Section 3/3/6 and Section 5/3/6: The turf reinforcement mat has been moved

beneath the topsoil layer. 16. Revised Drawing: a. Drawing No. D-505 (Sheet 9 of 12), noted “REVISED DRAWING 7/2/2013”

accompanies this Addendum and supersedes the same numbered originally issued drawing. 1. Detail 4/4/9, Section 5/9/9, and Section 6/9/9: 2-inch diameter Schedule 40 low

flow penetration pipes have been added to the spillway inlet extension. 17. Revised Drawing: a. Drawing No. D-506 (Sheet 10 of 12), noted “REVISED DRAWING 7/2/2013”

accompanies this Addendum and supersedes the same numbered originally issued drawing. 1. Detail 2/4/10, Section 4/4/10, and Section 7/10/10: The lid has been revised

from 20 gauge to 12 gauge metal decking. 18. Revised Drawing: a. Drawing No. D-507 (Sheet 11 of 12), noted “REVISED DRAWING 7/2/2013”

accompanies this Addendum and supersedes the same numbered originally issued drawing. 1. Section 5/11/11: The lid has been revised from 20 gauge to 12 gauge metal

decking.

END OF ADDENDUM James Dirolf, P.E. Director of Design

Project Name: Marcel Roth Lake Dam Rehabilitation Location: California Hill State Forest, Town of Kent, Putnam County Project ID#: 43307 PERMIT CONDITIONS The final permit(s) for the Marcell Roth Dam Rehabilitation Project have not yet been issued. The following is a list of anticipated conditions that must be followed for all activities authorized by the permit: Erosion Control - Necessary erosion control measures, i.e., straw bales, silt fencing, etc., are to be placed on the downslope edge of any disturbed area. This sediment barrier is to be put in place before any disturbance of the ground occurs and is to be maintained in good and functional condition until thick vegetative cover is established. Drawdown - Before construction begins, Waywayanda Lake shall be drawn down to an elevation of 915.6 feet. Drawdown or dewatering of the impoundment area shall be done gradually and in a manner which does not cause a visible increase in turbidity downstream nor cause a loss of fish life unless written authorization by the Department is granted pursuant to Section 11-1321.5 of the Environmental Conservation Law. Maintain Water Flow During Work - During periods of work activity, sufficient flow of water shall be maintained in the outlet stream at all times by means of pump or siphon, to sustain aquatic life downstream. Discharge must be controlled to avoid scour and erosion. Temporary Coffer Dam - Prior to commencing work in the lake, the permittee shall install a cofferdam of non-erodible, easily removed material to isolate the work area from the rest of the lake. Examples would be sand bags wrapped in an impermeable membrane, concrete block, or commercially available PortaDam. All fish trapped within the cofferdam during the dewatering process shall be returned, alive and unharmed, to the water outside the confines of the cofferdam. No Turbidity from Dewatering - Water within the cofferdam shall be pumped out. No turbid water resulting from dewatering operations shall be discharged directly to or allowed to enter any stream or wetland. Such water shall be pumped to settling basins or to an upland vegetated area prior to any discharge to any stream or wetland. All other necessary measures shall be implemented to prevent any visible increase in turbidity or sedimentation downstream of the work site. Concrete Leachate - During construction, no wet or fresh concrete or leachate shall be allowed to escape into any wetlands or waters of New York State, nor shall washings from ready-mixed concrete trucks, mixers, or other devices be allowed to enter any wetland or waters. Only watertight or waterproof forms shall be used. Wet concrete shall not be poured to displace water within the forms. Clean Fill Only - All fill material utilized for this project shall consist of uncontaminated earthen materials only. Acceptable fill materials include gravel, rock, overburden, topsoil and similar natural mineral resources.

Re-filling the Impoundment - Waywayanda Lake will be allowed to begin to refill to former 921.0 foot elevation at conclusion of work or as further established herein by Dam Safety conditions. Re-filling of the impoundment following construction shall be done gradually and in a manner which provides sufficient flow of water downstream at all times to sustain fish and other aquatic life. Precautions Against Contamination of Waters - All necessary precautions shall be taken to preclude contamination of any wetland or waterway by suspended solids, sediments, fuels, solvents, lubricants, epoxy coatings, paints, concrete, leachate or any other environmentally deleterious materials associated with the project. Materials Disposed at an Upland Site - Any demolition debris, excess construction materials, and/or excess excavated materials shall be immediately and completely removed from the lake bed/bank/outlet stream and disposed of on an approved upland site more than 100 feet from any regulated freshwater wetland. These materials shall be suitably stabilized so as not to re-enter any water body, wetland, or wetland adjacent area. Seed, Mulch Disturbed Soils - All areas of soil disturbance resulting from this project (above the mean high water line) shall be seeded with an appropriate perennial grass seed and mulched with straw within one week of final grading. Mulch shall be maintained until soil is fully vegetated. If seeding is impracticable due to the time of year, a temporary mulch shall be applied within 5 days and final seeding shall be performed at the earliest opportunity when weather conditions favor germination and growth; but not more than six months after project completion and no later than the permit expiration date.

ELE

VA

TIO

N (F

T.)

910

912

914

916

918

920

922

924

926

908

928

930

4 4

2

SCALE: 1" = 4'

SPILLWAY INLET MODIFICATION SECTION

910

912

914

916

918

920

922

924

926

908

928

930

EL

EV

AT

IO

N (F

T.)

910

912

914

916

918

920

922

924

908

EXISTING SPILLWAY INLET

910

912

914

916

918

920

922

924

908

9

4 9

EXISTING CONCRETE

SPILLWAY BOX INLET

- SEE SHEET 9 FOR DETAILS

EXISTING GROUND SURFACE


MODIFIED SPILLWAY INLET

EXISTING CONCRETE PAD

UPSTREAM SLOPE RE-GRADING

- SEE SECTION


(TO REMAIN AND COVER AS

SHOWN)

EL. 921.0

(FINAL WATER ELEVATION)

TRASH RACK


EXISTING CONCRETE SPILLWAY

BOX INLET


SPILLWAY INLET EXTENSION


LOW LEVEL OUTLET TRASH RACK

- SEE DETAIL

EXISTING NON-FUNCTIONAL

SLUICE GATE (TO BE REMOVED

BY CONTRACTOR)

EL. 917.5

(EXISTING WATER

ELEVATION)

EXISTING CONCRETE OUTLET STRUCTURE

NOTE:

1. Existing conditions based on survey drawing completed by Greenman-Pedersen, Inc., in November 2012 and drawing

titled "Existing Conditions," Drawing No. C-101, completed by Greenman-Pedersen, Inc., dated March 6, 2012.

SECTION NOTES:

1. Spillway inlet modification work shall include removal of the existing non-functional sluice gate, removal of accumulated sediment to

approximate elevation 909 as shown, and extension of the existing spillway inlet to elevation 921.0.

2. The lake level may be lowered to elevation 915.6 during construction.

3. The Contractor may elect to install a temporary cofferdam/dewatering system to allow work to be completed in the dry. Operate and

maintain the dewatering system with pumps and/or siphons. Discharged water shall be directed onto a stabilized area to limit the

potential for erosion. Submit a dewatering plan as described in the project specifications. Remove dewatering system upon

completion of work.

SPILLWAY OUTLET

LOCKABLE SLIDE GATE HANDLE

SPILLWAY OUTLET

TRASH RACK GATE

COVER LIGHT STONE FILL WITH

BEDDING STONE TO PROVIDE

WALKING SURFACE

3

4 4

24" SLIDE GATE LOW LEVEL OUTLET

- SEE DETAIL

SLIDE GATE HANDLE SUPPORT

LIGHT STONE FILL

(DO NOT PROVIDE COMPACTION

ALONG SPILLWAY INLET STRUCTURE)

EXISTING TRASH RACK

(TO BE REMOVED BY CONTRACTOR)

12" LAYER LIGHT STONE FILL

EL. 909.0

6" LAYER TOPSOIL AND SEED

24" SLIDE GATE LOW LEVEL OUTLET

(INSTALL PER MANUFACTURER'S

RECOMMENDATIONS)

SLIDE GATE VALVE STEM

SECURE VALVE STEM AS

RECOMMENDED BY MANUFACTURER

4 4

3

SCALE: N.T.S.

SLIDE GATE DETAIL

CONCRETE SPILLWAY INV. EL 909.0

CONCRETE SPILLWAY WALL

CONTRACTOR TO PROVIDE

18" MIN. (MINIMUM OPENING IN EACH DIRECTION)

PENETRATION WITH A SMOOTH SURFACE

LOW LEVEL OUTLET TRASH RACK

- SEE DETAIL

9

4 9

12" LAYER LIGHT STONE FILL

GRADE TO ACCOMMODATE

TRASH RACK INSTALLATION

2

4 4

4

4 7


(TO REMAIN AND BURIED)

EXISTING BURIED CONCRETE

SPILLWAY OUTLET

BURIED CONCRETE SPILLWAY EXTENSION

LIGHT STONE FILL

EXPOSED CONCRETE SPILLWAY EXTENSION

MEDIUM STONE FILL OUTLET

PROTECTION (CHINK VOIDS

WITH LIGHT STONE FILL)

6" DIA. SLOTTED PLASTIC CORRUGATED

DRAIN PIPE - SEE DETAIL

DRAIN PIPES TO DAYLIGHT INTO

OUTLET PROTECTION (TYP.)

- SEE SECTION

APPROXIMATE INLET

GRADING LIMIT

6

4 6

EXISTING EXPOSED OUTLET

HEADWALL TO REMAIN

SPILLWAY EXTENSION

- SEE DETAIL

5

4 8

6

4 11

RE-GRADED SLOPE

SPILLWAY INLET EXTENSION

TO EL. 921

- SEE DETAIL

LOCKABLE SLIDE GATE HANDLE

4

4 9

4

4 7

6

4 6

7

4 6

7

4 6

HAND RAIL

0 3' 6'6'

6

4 8

5

4 8

TRASH RACK

- SEE DETAIL

FINAL GRADES - SEE SHEET 3

9

3 6

2495 MAIN STREET, SUITE 432

Consulting Engineers, P.C.

McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

3 5

2

SCALE: 1" = 4'

AUXILIARY SPILLWAY PROFILE

914

916

918

920

922

924

926

914

916

918

920

922

924

926

912 912

32.0' AUXILIARY SPILLWAY

1

3

1

3


EL. 923.4

EL. 917.5

(EXISTING

WATER ELEVATION)

EL. 921.0

(FINAL

WATER ELEVATION)

LIGHT STONE FILL UPSTREAM SLOPE

UPSTREAM SLOPE RE-GRADING

- SEE SECTION

1

3 6


910910

UPSTREAM AUXILIARY SPILLWAY

TRANSITION

- SEE DETAIL

4

5 5

EL. 912.7

3.1% SLOPE

MATERIAL TIE-IN

- SEE DETAIL

4

5 6

EL. 923.4

TURF REINFORCEMENT MAT

3 5

3

SCALE: 1" = 2'

AUXILIARY SPILLWAY SECTION


EL. 923.4

EL. 924.5

SUITABLE FILL

ELE

VA

TIO

N (F

T.)

918

920

922

924

926

918

920

922

924

926

ANCHOR TURF REINFORCEMENT MAT AS

RECOMMENDED BY MANUFACTURER (TYP.)


EL. 924.5

1

4

1

4

FINAL GRADE



1

3

5 5

4

SCALE: 1" = 1'

UPSTREAM AUXILIARY

SPILLWAY TRANSITION DETAIL

1

3

6" (MIN.) LAYER BEDDING STONE

1.5' LAYER LIGHT STONE FILL


1

1

EL. 923.4

EL. 921.3


ELE

VA

TIO

N (F

T.)

890

895

900

905

910

915

920

925

930

890

895

900

905

910

915

920

925

930

EL. 909

EL. 915

INV. EL. 917.6

EXISTING SPILLWAY INLET

EXISTING SPILLWAY

OUTLET


SCALE: 1" = 6'

BORING PROFILE

3 5

1


FINAL GRADE

EOB 25.5' (898.3)

BH5-12

GS EL. 923.8

MW4A-12

GS EL. 923.9

TOC EL. 926.6

EOB 11.0' (912.9)

BH3A-12

GS EL. 924.1

EOB 28.5' (895.6)

EOB 19.5' (904.7)

MW2-12

GS EL. 924.2

TOC EL. 926.9

MW4-12

GS EL. 923.8

TOC EL. 926.3

EOB 28.0' (895.8)

APPROXIMATE

ROCK SURFACE

EOB 19.5' (904.4)

BH6-12

GS EL. 923.9

BH3-12

GS EL. 924.0

EOB 14.5' (909.5)

AUGER REFUSAL

EOB 16.3' (907.9)

BH1-12

GS EL. 924.2



McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

3 6

1

SCALE: 1" = 2'

UPSTREAM SLOPE RE-GRADING SECTION

1

3

ELE

VA

TIO

N (F

T.)

916

918

920

922

924

916

918

920

922

924

926 926

UPSTREAM


(SEE SECTION NOTE 1)

EL. 917.5

(EXISTING

WATER ELEVATION)

EL. 921.0

(FINAL WATER ELEVATION)


1

1

~2.5'

1

1

SILT FENCE (REMOVE PRIOR

TO ALLOWING WATER TO RISE

FROM EL. 917.5 TO 921.0)

- SEE DETAIL

1

3 7

FINAL GRADE

3 6

2

SCALE: 1" = 3'

DOWNSTREAM SLOPE RE-CONSTRUCTION SECTION

DOWNSTREAM

APPROXIMATE LOCATION OF 6" DIA. SLOTTED PLASTIC

CORRUGATED DRAIN PIPE AFTER TOPSOIL STRIPPING

(TYP.)

- SEE DETAIL



S

LO

P

E

T

O

D

R

A

IN

SLOPE TO DRAIN

FOLLOWING REMOVAL OF TOPSOIL,

CONTRACTOR SHALL INSTALL DRAIN

PIPE IN LOW SPOT

MATERIAL TIE-IN

- SEE DETAIL

4

5 6


SILT FENCE (REMOVE

FOLLOWING SITE RESTORATION)

- SEE DETAIL

1

3 7

0.5' (TYP.)

1.5' (MIN.)

5 6

4

6" DIA. SLOTTED PLASTIC

CORRUGATED DRAIN PIPE

SLOT - SEE TABLE

2

SLOT WIDTH

SLOT LENGTH

WATER INLET AREA

< 1/8"

< 1-1/4"

> 1in. /ft.

3 6

9

CONCRETE SURFACE SEAL

(TO REMAIN UNDISTURBED)


(EL. VARIES)

FINAL GRADE

PROTECTIVE STEEL CASING


2" DIA. PVC PIPE


EL. 924.5

MOUND TOPSOIL AROUND CASING

TO PROMOTE DRAINAGE

3 6

8


DETAIL NOTE:

1. Paint all wells with highly visible paint (i.e. orange).

3 6

5

SCALE: 1" = 2'

REINFORCEMENT MAT AUXILIARY SPILLWAY SECTION

2

2

1

2.0'

910

912

914

ANCHOR VEGETATED TURF REINFORCEMENT

MAT AS RECOMMENDED BY MANUFACTURER

(TYP.)

EL

EV

AT

IO

N (F

T.)


910

912

914

FINAL GRADE

1



910

912

914

ELE

VA

TIO

N (F

T.)

908

916

910

912

914

908

916

3.0'


FINAL GRADE


4 6

6

SCALE: 1" = 2'

STONE FILL SLIDE GATE APPROACH SECTION

1

1

1

1

EL. 909.0

UPSTREAM RE-GRADE SLOPE

(EL. VARIES)

LIGHT STONE FILL


6" (MIN.) LAYER BEDDING

STONE

1

1

1

1

COVER LIGHT STONE FILL WITH BEDDING

STONE TO PROVIDE WALKING SURFACE

EL. 921.0

EL. 921.5

4 6

7

SCALE: 1" = 2'

GRADED ACCESS WALKWAY SECTION

3.0'

922

EL

EV

AT

IO

N (F

T.)

916

918

920

918

916

920

922

10.0'

FINAL GRADE

3 6

3

SCALE: 1" = 2'

DOWNSTREAM SLOPE AUXILIARY SPILLWAY SECTION

SUITABLE FILL

SECTION NOTES:

1. Transition the spillway from 10 feet wide to 2 feet wide to match the reinforcement mat spillway section.

2. Clear topsoil and organics prior to placement of suitable fill.



6" TOPSOIL AND SEED

ANCHOR TURF REINFORCEMENT MAT AS

RECOMMENDED BY MANUFACTURER (TYP.)

1.0'

TURF REINFORCEMENT MAT4" LAYER TOPSOIL AND SEED



McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

EL. 917.61

SCALE: 1/2" = 1'-0"

EXISTING CONCRETE SPILLWAY BOX INLET DETAIL

2 9

1

SCALE: 1/2" = 1'-0"

EXISTING CONCRETE SPILLWAY BOX INLET SECTION 9 9

2

2

9 9

2

9 9

EL. 920.05

CONCRETE SPILLWAY INLET

EXTENSION

EL. 917.61

EL. 921.0

SPILLWAY INLET EXTENSION DETAIL

4 9

4

SCALE: 1/2" = 1'-0"

SPILLWAY INLET EXTENSION SECTION 9 9

5

7

9 9

EL. 917.46

5

9 9

5

9 9

EL. 917.61

EL. 917.46

EL. 920.05

8'-1"

6'-7"

EL. 917.46

EL. 920.05

SCALE: 1/2" = 1'-0"

SPILLWAY INLET EXTENSION SECTION 9 9

6

3

9 9

2'-9"

4'-2

1

2

"

6'-2

1

2

"

2'-9"

4'-2

1

2

"

6'-2

1

2

"

3

9 9

6

9 9

6

9 9

EL. 921.0

10'-1"

2'-9"

6'-7

1

4

"

SCALE: 1/2" = 1'-0"

EXISTING CONCRETE SPILLWAY BOX INLET SECTION 9 9

3

1'-9

1

2

"1'-8"

6'-2

1

2

"

10'-1"

SCALE: 1/2" = 1'-0"

5

1

4

" CLR. (TYP.)

5

1

4

" CLR.

#4 BAR @ 12" VERT., E.F.

#4 BAR @ 5" HORIZ., E.F.

5

1

4

" CLR.

5

1

4

" CLR.

8

1

2

" EMBEDMENT (TYP.)

- SEE DETAIL

7

9 9

8

9 9

8

9 9

EL. 917.61

5

1

4

" CLR.

5

1

4

" CLR.

5

1

4

" CLR.

5

1

4

" CLR.

9"

25" REINF. BAR

OVERLAP (TYP.)

25" REINF. BAR

OVERLAP (TYP.)

5

1

4

" CLR. (TYP.)

9"

2'-9"

4'-2

1

2

"

1

1

2

" CLR. 1

1

2

" CLR.

DETAIL NOTE:

1. Each penetration shall be centered horizontally and vertically between the reinforcement bars.

2'-8

7

8

"

2'-8

3

8

"

LOW FLOW INLET PENETRATION (TYP.)

(2" DIA. SCH. 40 PVC PIPE)

2'-8

7

8

" 2'-8

3

8

"



INV. EL. 920.14

10'-1" 8'-1" 6'-7"

1

1

2

" CLR.

INV. EL. 920.14



(SEE NOTE 1)

8

1

2

" EMBEDMENT

SCALE: 1-1/2" = 1'-0"

REINFORCEMENT BAR EMBEDMENT DETAIL

9 9

8

5

1

4

" CLR. (TYP.)

2" WIDE x

1

4

" THICK

FLAT BAR

#6 REBAR (TYP.)

18" MIN. PENETRATION

6" x 6" CAGE

OPENING (TYP.)

10

9 9

10

9 9

4 9

9

SCALE: 1" = 1'

LOW LEVEL OUTLET TRASH RACK DETAIL

#6 REBAR (TYP.)

2" WIDE x

1

4

" THICK

FLAT BAR

1

2

" DIA. STAINLESS STEEL WEDGE

ANCHORS (TYP.) WITH 3" EMBEDMENT

CONCRETE SPILLWAY WALL

9 9

10

SCALE: 1" = 1'

LOW LEVEL OUTLET TRASH RACK SECTION

30"

30"

FILLET WELD CAGE BARS

TO FLAT BAR (TYP.)

FILLET WELD CORNERS

OF FLAT BAR FRAME

1

2

" DIA. BOLT

CONNECTION (TYP.)

C 18" MIN. PENETRATION

L

TRASH RACK C

L

TACK WELD CAGE BAR AT

EACH CROSSING LOCATION

DETAIL NOTE:

1. Center the low level outlet trash rack over the concrete penetration.



McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

43'-0"

22'-0"

FLAT COVER

16'-0"

(OPEN TOP TRANSITIONS FROM EL 915.8 TO 910.6)

5'-0"

EXISTING CONCRETE SPILLWAY OUTLET

EXISTING COVERED SPILLWAY

3

10 11

3

10 11

2'-0"

3'-3"

1

10 11

2

10 11

2

10 11

1

10 11

4

10 11

5'-0"

9"

1'-10"

3'-4"

6'-0"

9"

6'-0"

11"

2'-1"

9"

WINGWALL

SCALE: 3/8" = 1'-0"

EXISTING SPILLWAY HEADWALL DETAIL

2 10

1

3

10 10

3

10 10

EL. 919.03

EL. 917.04

INV. EL. 908.97

10 10

3

1'-0"

11"

11"

WINGWALL

WINGWALL

SCALE: 3/8" = 1'-0"

SPILLWAY EXTENSION DETAIL

4 10

2

SCALE: 3/8" = 1'-0"

EXISTING SPILLWAY HEADWALL SECTION

1010

4

SCALE: 3/8" = 1'-0"

SPILLWAY EXTENSION SECTION

COVER FOR EXISTING SPILLWAY

- SEE DETAIL

5

10 10

COVER TO EXISTING WALL

CONNECTION - SEE DETAIL

1'-0"

3'-9

1

4

"

6'-3

1

2

"

3" CLR.

1

1

2

" CLR.

1

1

2

" CLR.

4

10 11

COVER FOR EXISTING SPILLWAY

- SEE DETAIL

EXISTING WALL TO WALL CONNECTION

- SEE DETAIL

6

10 10

7

10 10

7

10 10

4

10 10

4

10 10

HANDRAIL

22'-0"

FLAT COVER

43'-0"

HANDRAIL

16'-0"

(OPEN TOP TRANSITIONS FROM EL 915.9 TO 910.6)

5'-0"

3"x3"x

1

4

" GALVANIZED ANGLE

12 GAUGE METAL DECKING

(TO SERVE AS LID) (CONNECT TO

ANGLE WITH SELF TAPPING SHEET

METAL SCREW AT EACH INTERFACE)

6"

6"

12 GAUGE METAL DECKING

(TO SERVE AS LID)

IF CONSTRUCTION JOINT IS

NECESSARY - SEE DETAIL

3

10 12

5'-0" 6'-8"

3"x3"x

1

4

" GALVANIZED ANGLE

(TYP. BOTH SIDES)

EL. 919.8

EL. 917.5

7'-4"

3" CLR.

EL. 915.9

EL. 910.6

EL. 908.6

9"

3" CLR.

25" REINF. BAR

OVERLAP (TYP.)

25" REINF. BAR

OVERLAP (TYP.)

7'-7"

6'-4"

EL. 908.97

8

1

2

" EMBEDMENT

SCALE: 1-1/2" = 1'-0"

COVER TO EXISTING WALL CONNECTION DETAIL

10 10

5

9"

9"

8

1

2

" EMBEDMENT 25" SPLICE LENGTH

SCALE: 1-1/2" = 1'-0"

EXISTING WALL TO WALL CONNECTION DETAIL

10 10

6

10"

8

1

2

" EMBEDMENT (TYP.)

SCALE: 3/4" = 1'-0"

COVER TO EXISTING WALL CONNECTION SECTION

10 10

7

9"



McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

2

11 12

2

11 12

2

11 12

3" CLR. 3" CLR.

3" CLR. 3" CLR.

3" CLR. 3" CLR.

7'-7"

9"

10"

6'-6"

SCALE: 1/2" = 1'-0"

COVER FOR EXISTING SPILLWAY DETAIL

10 11

4

5

11 11

5

11 11

14'-1"

10'-2

1

2

"

2'-4

3

16

"

6'-9

5

8

"

4'-10

3

8

"

SCALE: 3/8" = 1'-0"

TRASH RACK DETAIL

4 11

6

7

11 11

7

11 11

8

11 11

4'-10

3

8

"

SLIDE VALVE

- SEE DETAIL

3

4 4

8

11 11

9

11 11

9

11 11

TYPICAL CORNER

- SEE DETAIL

4

11 12

3'-8

1

8

" (TYP.)

5

'

-

0

7

1

6

"

(

T

Y

P

.

C

O

R

N

E

R

)

14'-1"

EL. 921.0

EL. 920.0

EL. 921.0

EL. 924.5

2'-0"

(TYP.)

SCALE: 1/2" = 1'-0"

TRASH RACK SECTION - 11 11

7

1

11 12

1' (TYP.)

3'-6" (TYP.)

2'-0"

(TYP.)

EL. 920.0

EL. 921.0

EL. 924.5

1

11 12

SCALE: 1/2" = 1'-0"

TRASH RACK SECTION - 11 11

8

10'-2

1

2

"

1' (TYP.)

3'-6" (TYP.)

45° (TYP)

45° (TYP)

6

11 12

6

11 12

7

11 12

7

11 12

SCALE: 3/4" = 1'-0"

COVER FOR EXISTING SPILLWAY SECTION

11 11

5

9"

7'-7"

3'-8

3

8

"

11

3

4

"

9"

1'-5

5

8

"

9"

1

1

2

" CLR. (TYP.)

2'-1"

2'-1"

10"

2'-1"

2'-1"

EL. 920.0

EL. 921.0

EL. 924.5

14'-1"

9"

9"

SCALE: 1/2" = 1'-0"

TRASH RACK CAGE SECTION

11 11

9

EL. 922.0

DETAIL NOTES:

1. Trash rack cage shall be lockable.

2. Provide sign on gate to read "Authorized Personnel Only".

7

11 12

8

11 12



McMahon & Mann

BUFFALO, NY 14214 FAX: (716) 834-8934

(716) 834-8932

Governor

Commissioner

STATE OF NEW YORK OFFICE OF GENERAL … 01 C.pdfThe slide gate shall be a ... flow penetration pipes...

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Transcript of STATE OF NEW YORK OFFICE OF GENERAL … 01 C.pdfThe slide gate shall be a ... flow penetration pipes...