Contract Drawings - Big Bend Draft Tube Bulkhead Replacement.pdf

PDF 6 MB Posted Jul 23, 2025

Attached to: Big Bend Draft Tube Bulkhead Replacement Federal contract opportunity
Solicitation number: W9128F25RA058
Issued by: Department of the Army Corps of Engineers Engineering District Omaha

About this file

Written by GovTribe AI · Jul 23, 2025

These contract drawings detail the design for the Big Bend Dam Draft Tube Bulkhead Replacement project located on the Missouri River in South Dakota. The technical drawings, prepared by the U.S. Army Corps of Engineers Hydroelectric Design Center, comprehensively document the fabrication specifications for six new draft tube bulkheads, including detailed structural designs, seal configurations, lifting mechanisms, and coupling details. The drawings specify precise manufacturing requirements, including material specifications (predominantly ASTM A709 steel), welding standards (AWS D1.6), surface finishing (250 microinch), and non-destructive testing protocols for critical structural components.

The bulkhead replacement involves intricate engineering components such as guide shoes, lifting lugs, seal assemblies, and coupling mechanisms, with each bulkhead consisting of two individual leafs. The technical drawings provide extensive technical specifications, including dimensional tolerances, material grades, surface treatments, and assembly instructions. Specific design features include stainless steel seal components (ASTM A240 UNS31603), complex welding requirements, and precise machining specifications to ensure proper fit, function, and water-tight sealing of the draft tube bulkheads within the hydroelectric infrastructure.

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Other files for this federal contract opportunity

Other files attached to Big Bend Draft Tube Bulkhead Replacement, newest first.
File	Type	Posted
G-002_Amended.pdf	PDF	Sep 4, 2025
Solicitation Amendment W9128F25RA0580002 SF 30.pdf	PDF	Sep 4, 2025
S-001_Amended.pdf	PDF	Sep 4, 2025
Solicitation Amendment - W9128F25RA0580001 SF 30.pdf	PDF	Aug 15, 2025
Site Visit Sign in Sheet.pdf	PDF	Aug 5, 2025
Solicitation Description.pdf	PDF	Jul 23, 2025
W9128F25RA058.pdf	PDF	Jul 23, 2025
Reference Drawings Big Bend Draft Tube Bulkhead Replacement.pdf	PDF	Jul 23, 2025
W9128F25RA0058 BB DTB Replacement specs.pdf	PDF	Jul 23, 2025

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G-001

SOLICITATION NO.:

CONTRACT NO.:

ISSUE DATE:

OMAHA DISTRICT

BIG BEND DAM

MISSOURI RIVER, SOUTH DAKOTA

DRAFT TUBE BULKHEAD REPLACEMENT

PROJECT BB105

W9128F25BRA0058

JUNE 2025

US Army Corps of Engineers ®

SCALE: NTS

PROJECT AERIAL IMAGEH13

SCALE: NTS

VICINITY MAPD1 SCALE: NTS

PROJECT LOCATION MAPD7

(GOOGLE MAPS, 2018)

NORTH NORTH

NORTH

PROJECT LOCATION

DATE

CHIEF, MECH/STRUCTURAL BRANCH

APPROVED BY:

DIRECTOR HDC

JAMES D. CALNON, P.E. JORDAN S. FINK, P.E. DATE

THIS PROJECT WAS DESIGNED BY THE HYDROELECTRIC DESIGN CENTER OF THE U.S. ARMY CORPS OF ENGINEERS.

THE INITIALS OR SIGNATURES AND REGISTRATION DESIGNATIONS OF INDIVIDUALS APPEAR ON THESE PROJECT

DOCUMENTS WITHIN THE SCOPE OF THEIR EMPLOYMENT AS REQUIRED BY ER 1110-1-8152.

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G-002

INDEX TO DRAWINGS

GENERAL

FILE NAMESHEET

NO TITLE TITLE

INDEX TO RESOURCE DRAWINGS

FILE NAME

G-001 BB105_G-001XXX.DWG PROJECT LOCATION AND VICINITY MAP

G-002 BB105_G-002XXX.DWG DRAWING INDEX

G-401 BB105_G-401XXX.DWG CONTRACTOR STAGING AREAS

G-901 BB105_G-901XXX.DWG EXISTING SITE CONDITIONS - SHEET 1

G-902 BB105_G-902XXX.DWG EXISTING SITE CONDITIONS - SHEET 2

S-001 BB105_S-001XXX.DWG GENERAL STRUCTURAL NOTES

S-002 BB105_S-002XXX.DWG ASSEMBLY AND ALIGNMENT

S-003 BB105_S-003XXX.DWG GEOMETRIC DIMENSIONING AND TOLERANCING

S-101 BB105_S-101XXX.DWG LEAF

S-102 BB105_S-102XXX.DWG LEAF

S-501 BB105_S-501XXX.DWG DETAIL VIEWS

S-502 BB105_S-502XXX.DWG DETAIL VIEWS - LIFTING LUG

S-503 BB105_S-503XXX.DWG BULKHEAD SEALS - SHEET 1

S-504 BB105_S-504XXX.DWG BULKHEAD SEALS - SHEET 2

S-505 BB105_S-505XXX.DWG DETAILS

S-506 BB105_S-506XXX.DWG DETAILS

STRUCTURAL

6039 DRAFT TUBE GATE LEAF ASSEMBLY

6040 DRAFT TUBE GATE LEAF

6041 DRAFT TUBE GATE SEAL, CLAMP BARS, AND DETAILS

6042 DRAFT TUBE GATE DOG DETAILS

6044 DRAFT TUBE FRAME & GUIDE ASSEMBLIES

6045 DRAFT TUBE GATE FRAMES AND GUIDES

6046 DRAFT TUBE GATE FRAME

6052 FASTENERS AND MISC ITEMS

D-10 CENTER OF GRAVITY CALCULATIONS

MB12 BOM GROUP 6

MB12 BOM GROUP 7

MB12 BOM GROUP 8

595-0501 LIFTING BEAM GENERAL ARRANGEMENT

595-0502 WELD LIFTING BEAM

595-0503 WELD, HOOK

MB37-80E103.1 EQUIPMENT ARRANGEMENT -TRANSVERSE SECTIONS

MB37-80E111.1 LONGITUDINAL SECTIONS -DOWNSTREAM GALLERIES

MB37-80E123.2 ELECTRICAL EQUIPMENT - 230KV BUSES ON DRAFT TUBE DECK

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G-401SCALE: NTS

CONTRACTOR STAGING AREASA1

(GOOGLE MAPS, 2018)

PLAN

NORTH

EQUIPMENT STORAGE

FENCE

OFFICE TRAILER, STORAGE,

PARKING AND STAGING

AREAS. SEE NOTE 2

STAGING AND STORAGE AREAS FOR

DEMO AND INSTALL. SEE NOTE 2

NEW RUNWAY DISCONNECT

APPROXIMATE LOCATION

DRAFT TUBE DECK

ACCESS AREA

PUBLIC ROAD

MAY NOT BE BLOCKED

DRAFT TUBE CRANE

PARKED LOCATION

1. INDICATES CONTRACTOR STAGING AREAS.

2. STAGING AREA BY OVERHEAD HIGH VOLTAGE POWER LINES THAT WILL RESTRICT

ABILITY TO USE MOBILE CRANE FOR EQUIPMENT HANDLING. SEE DRAWINGS G-901

AND G-902. COORDINATE LINE OUTAGES IN ACCORDANCE WITH SPEC

SECTION 01 12 00.

3. SEE REFERENCES DRAWINGS FOR ADDITIONAL DETAIL.

GENERAL NOTES

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G-901A1

1. MAINTAIN CLEARANCES FROM EXISTING SITE ELECTRICAL EQUIPMENT.

2. DO NOT BLOCK THE TAILRACE DECK WITH STAGED MATERIALS AND EQUIPMENT.

3. GOVERNMENT CRANE IS TO BE OPERATED BY BIG BEND PROJECT STAFF.

GENERAL NOTES

PHOTO - OVERHEAD HIGH VOLTAGE LINES

AT SOUTH END OF RUNWAY

D6 PHOTO - VIEW OF DRAFT TUBE DECK AREA

A11

PHOTO - OVERHEAD HIGH VOLTAGE LINES

ABOVE CRANE

D16

PHOTO - VIEW OF DRAFT TUBE DECK

LOOKING NORTH

HIGH VOLTAGE

OVERHEAD LINES

MAINTAIN PROPER CLEARANCE

BETWEEN WINDSPEED INDICATOR AND

TAILRACE LIGHTING FIXTURES

RUNWAY

CONDUCTOR

SYSTEM

HIGH VOLTAGE

OVERHEAD LINES

HIGH VOLTAGE

OVERHEAD LINES

AND TOWER

HIGH VOLTAGE

OVERHEAD LINES

OVERHEAD HIGH VOLTAGE

LINE STRUCTURAL SUPPORTS

TRANSFORMER

RAILS

CRANE

RAILS

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G-902A1 PHOTO - DRAFT TUBE DECK STORAGE AREA

D6 PHOTO - DRAFT TUBE DECK ENTRANCE

A11 PHOTO - DRAFT TUBE DECK

D16

PHOTO - VIEW OF DRAFT TUBE DECK

LOOKING SOUTH

DRAFT TUBE DECK

STORAGE AREA

1. MAINTAIN CLEARANCES FROM EXISTING SITE ELECTRICAL EQUIPMENT.

2. DO NOT BLOCK THE TAILRACE DECK WITH STAGED MATERIALS AND EQUIPMENT.

3. GOVERNMENT CRANE IS TO BE OPERATED BY BIG BEND PROJECT STAFF.

GENERAL NOTES

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S-001

1.0 STRUCTURAL STEEL

1.1 FABRICATOR TO BE CERTIFIED UNDER AISC QUALITY CERTIFICATION PROGRAM WITH

ONE OF THE FOLLOWING CERTIFICATIONS; MAJOR BRIDGE FABRICATOR (CBR),

CERTIFIED BRIDGE FABRICATOR - ADVANCED (ABR), CERTIFIED BRIDGE FABRICATOR -

INTERMEDIATE (IBR), OR CERTIFIED HYDRAULIC FABRICATOR - ADVANCED (HYDA) AT

THE TIME OF BID. IN ADDITION, THE FABRICATOR IS REQUIRED TO BE CERTIFIED WITH

FRACTURE CRITICAL ENDORSEMENT (FCE) AT TIME OF BID. THE FABRICATOR SHALL

BE CERTIFIED FOR THE LIFE OF THE CONTRACT.

1.2 ALL DIMENSIONS, DISTANCES AND ANGLES SHOWN ARE PER THE ORIGINAL

CONTRACT DRAWINGS. THE CONTRACTOR SHALL FIELD VERIFY ALL CONTROL

DIMENSIONS OF EXISTING BULKHEADS PRIOR TO BEGINNING FABRICATION AND SHALL

DOCUMENT ALL VARIANCES IN SHOP DRAWINGS SHOWING CLOUDED VARIANCES FOR

GOVERNMENT APPROVAL.

1.3 UNLESS OTHERWISE NOTED, ALL STRUCTURAL STEEL USED IN FABRICATION OF THE

BULKHEADS SHALL BE ASTM A709 T2 GRD 50, EXCEPT FRACTURE CRITICAL MEMBERS

WHICH SHALL BE ASTM A709 F2 GRD 50. FOR REQUIREMENTS, SEE SPECIFICATION

05 59 13.01 26.

1.4 CONFORM ALL STRUCTURAL WELDING TO ALL REQUIREMENTS AS STATED IN 05 59

13.01 26 FOR CONNECTIONS.

1.5 ALL WELDS NOT SHOWN ON THE CONTRACT DRAWINGS SHOULD BE ASSUMED TO BE

FRACTURE CRITICAL CJP WELDS, AND ARE TO BE IDENTIFIED ON THE SHOP

DRAWINGS AND CLOUDED FOR APPROVAL. PROVIDE ALL MISSING WELDS ADDED BY

THE CONTRACTOR TO THE SHOP DRAWINGS IN LIST FORM IDENTIFYING WHICH SHOP

DRAWING SHEET THE WELD IS LOCATED ON. ADD THIS LIST TO THE FIRST PAGE OF

THE SHOP DRAWINGS AND PROVIDE THE LIST FOR GOVERNMENT APPROVAL.

1.6 BREAK ALL SHARP EDGES TO A 1/16" RADII, UNLESS NOTED OTHERWISE. A SHARP

EDGE IS DEFINED AS ANY EDGE THAT IS THE RESULT OF SHEARING, FLAME CUTTING

OR MACHINING. BREAK ALL DRAIN HOLE EDGES TO A 1/8" RADII UNLESS NOTED

OTHERWISE

1.7 CONFORM PAINTING FOR DRAFT TUBE BULKHEADS TO ALL REQUIREMENTS STATED

IN SPECIFICATION 09 97 02.13 26. USE SYSTEM 5-E-Z FOR ALL BULKHEAD

COMPONENTS, EXCEPT AS NOTED IN THE SPECIFICATIONS. CERTIFY ALL PAINTING

CONTRACTORS ENGAGED IN SURFACE PREPARATION AND COATING APPLICATION

ACCORDING PER 09 97 02.13 26.

1.8 ALL WELD ACCESS HOLES ARE 2" RADIUS AND GROUND TO A MAXIMUM 1,000 ΜINCH

FINISH, UNLESS OTHERWISE NOTED. EXTEND SLOTTED ACCESS HOLES 2" PAST WELD

JOINT, UNLESS OTHERWISE NOTED.

1.9 WRAP ALL WELDS USING THE REQUIRED FILLET WELDS SIZE SHOWN ON THE

DRAWINGS, OR THE REQUIRED REINFORCING FILLET WELD SIZE PER AWS D1.5.

MATCH ADJACENT WELD SIZES AT LOCATIONS THAT ARE TO BE WRAPPED.

1.10 THE ESTIMATED DRY WEIGHT OF EACH BULKHEAD SECTION, NOT INCLUDING PAINT

AND WELDS: LEAF - 33500.0 LBS

1.11 ALL BOLT HOLES ARE TO BE STANDARD SIZE, UNLESS NOTED OTHERWISE.

1.12 PREHEAT WELDED JOINTS FOR THE THICKER PART JOINED. SEE SECTION

05 59 13.01 26.

1.13 MATCH DRILL HOLES AT ASSEMBLY FOR RUBBER SEALS.

1.14 SPLICES IN STEEL MEMBERS ARE NOT ALLOWED, UNLESS NOTED OTHERWISE,

WITHOUT GOVERNMENT APPROVAL. ALL WELDS IN SPLICES APPROVED BY THE

GOVERNMENT ARE TO BE CONSIDERED CRITICAL.

1.15 ASSUME ALL WELDS ON FRACTURE CRITICAL MEMBERS ARE IN TENSION FOR

PURPOSES OF NONDESTRUCTUIVE TESTING.

1.16 SOME COMPONENTS AND FEATURES MAY BE OMITTED FOR CLARITY AND/OR MAY

NOT BE TO SCALE IN CERTAIN VIEWS WITHIN THIS PACKAGE.

1.17 ALL CJP BUTT JOINTS ARE TO BE GROUND FLUSH, UNLESS NOTED OTHERWISE.

1.18 THERE ARE INTERSECTING WELDS LOCATED AT THE CORNERS OF THE TOP AND

BOTTOM WEBS, 16 WELD JOINTS IN TOTAL. THESE WELDS ARE SUBJECT TO TENSILE

STRESS. THE GREATEST DIMENSION ON ANY POROSITY OF FUSION-TYPE

DISCONTINUITY THAT IS 1/16 IN OR LARGER IN GREATEST DIMENSION SHALL NOT

EXCEED THE SIZE FOR THE EFFECTIVE THROAT OR WELD SIZE INVOLVED. THE

DISTANCE FROM ANY POROSITY OR FUSION-TYPE DISCONTINUITY DESCRIBED ABOVE

TO ANOTHER SUCH DISCONTINUITY, TO AN EDGE, OR TO THE TOE OR ROOT OF ANY

INTERSECTING FLANGE-TO-WEB WELD SHALL BE NOT LESS THAN THE MINIMUM

CLEARANCE ALLOWED OR THE SIZE OF DISCONTINUITY UNDER EXAMINATION.

2.0 DESIGN STANDARDS

2.1 AISC 325 - STEEL CONSTRUCTION MANUAL 15TH EDITION

2.2 AWS D1.5 - 2020

2.3 EM 1110 - 2 - 2107

3.0 QUANTITY

3.1 ALL QUANTITIES INDICATED ON STRUCTURAL SHEETS ARE FOR 1 BULKHEAD. SEE

SPECIFICATIONS FOR REQUIRED NUMBER OF BULKHEADS.

4.0 FRACTURE CRITICAL MEMBERS (FCM)

4.1 ALL FAILURE CRITICAL MEMBERS WILL BE TREATED AS A FRACTURE CRITICAL

MEMBER (FCM) FOR FABRICATION AND TESTING PURPOSES.

5.0 TOLERANCES UNLESS OTHERWISE NOTED.

5.1 TOLERANCES FOR FRACTIONAL DIMENSIONS:

5.1.1 BOTH ENDS MILLED: +/- 1/32"

5.1.2 NON-MILLED ENDS AND MEMBER LEGNTH OF 30' OR LESS: +/- 1/16"

5.1.3 NON-MILLED ENDS AND MEMBER LENGTH OVER 30': +/- 1/8"

5.2 TOLERANCES FOR ANGLES ARE +/- 0.5°.

5.3 TOLERANCES FOR DECIMAL DIMENSIONS ARE AS FOLLOWS:

DIMENSION TOLERANCE

X +/- 0.1 X.X +/- 0.02

X.XX +/- 0.005

X.XXX +/- 0.0005

X.XXXX +/- 0.00005

GENERAL NOTES

ABBREVIATIONS

CC CENTER TO CENTER

CG CENTER OF GRAVITY

CL CENTERLINE

CTRL CONTROL

CPLG COUPLING

DIA DIAPHRAGM

DIM DIMENSION

D/S DOWNSTREAM

EL ELEVATION

FLG FLANGE

FCM FRACTURE CRITICAL MEMBER

HORIZ HORIZONATAL

OC ON CENTER

PL PLATE

PLS PLATES

PLCS PLACES

U/S UPSTREAM

VERT VERTICAL

NTS NOT TO SCALE

STIF STIFFENER

SYMM SYMMETRICAL

TYP TYPICAL

EL 1317.60 (TOP SEAL)

EL 1287.40 (BOTTOM OF SLOT)

FLOW

EXTREME EL 1380.00

(SPILLWAY DESIGN FLOOD)

UNUSUAL EL 1377.00

(MAXIMUM UNUSUAL OPERATING POOL)

USUAL EL 1367.00

(MAX NORMAL OPERATING POOL)

21' -2"

11' -2"

CL TO CL

BEARING BAR

S-003

OUTSIDE EDGE OF SKIN PL

TO OUTSIDE EDGE OF

LIFTING LUG

S-101

4' - 11 1/2"

0' -10 1/2"

D/S EDGE OF SKIN PL

TO INSIDE D/S EDGE OF

GUIDE SHOES

S-501

0' - 7"

D/S EDGE OF SKIN PL TO

D/S EDGE OF LIFTING LUG

S-501

U/S EDGE OF TOP FLG

TO U/S EDGE OF LIFTING LUG

S-501

U/S FACE OF SKIN PLATE TO

CL OF COUPLING SLOT

S-504

TOP EDGE OF TOP WEB PL

TO TOP EDGE OF

LIFTING LUGS

S-502

CL TO CL

LIFTING LUGS

S-002

U/S EDGE OF FLG PL TO

INSIDE U/S EDGE OF

GUIDE SHOE S-501

2 21' -10 1/4"

OUT TO OUT

GUIDE SHOES

S-101

1' - 3"

1' -0 7/8"

1' - 9 3/8"

BOTTOM EDGE OF END WEB

TO CL OF

COUPLING SLOT S-505

13 N/A

1' - 0 7/8"

0' - 4 1/2"

PARALLEL & PERPINDICULAR

TOLERANCES

S-003

14 N/A

COPLANAR BEARING

BAR SURFACES

S-003

SCALE: NTS

CONTROL DIMENSIONS CHARTA9

SCALE: NTS

ISOMETRIC - DRAFT TUBE BULKHEAD ASSEMBLYH1 SCALE: NTS

ISOMETRIC - DRAFT TUBE BULKHEAD ASSEMBLYH8

FLOW

SCALE: NTS

DRAFT TUBE BULKHEADA1

BULKHEAD IDENTIFICATION

SEE SPECS FOR MORE DETAILS

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S-002

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

PLAN VIEW - BULKHEAD IN SLOTM5

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

ELEVATION - DOWNSTREAM VIEWA5SCALE: 1/2"=1'-0"

ELEVATION - END VIEWA1 SCALE: 3"=1'-0"

DETAIL - SLOT ENDA15

1. SEE GENERAL STRUCTURAL NOTES ON SHEET S-001.

2. CONTROL DIMENSIONS APPLY TO ALL BULKHEADS.

3. THIS SHEET SHOWS FULL ASSEMBLY VIEWS OF THE BULKHEADS IN THE

SLOT. SUBSEQUENT SHEETS OMIT SLOT AND MAY OMIT LIFTING LUG AND

SEALS FROM APPROPRIATE VIEWS FOR CLARITY.

4. SOME FEATURES AND COMPONENTS HAVE BEEN HIDDEN FOR CLARITY.

GENERAL NOTES

O U

E O

'-7

/1 6"

2 1/16"

BEARING BAR

SURFACE OF

2'-5 7/8"

T O

P O

P W

O B

O M

O F

P L

'-3

GUIDE SHOE

FLANGE PL

SURFACE OF

OUTSIDE TO OUTSIDE END PL21'-2 1/2"

OUTSIDE TO OUTSIDE OF GUIDE SHOES21'-10 1/4"

INSIDE SURFACE TO INSIDE SURFACE OF EXISTING SLOT22'-0"

CL TO CL OF SIDE J-BULB SEALS20'-8 3/4"

FLOW

A15 S-002

O A

G H

'-6

OA WIDTH2'-9 15/16"

C E

1/ 4"

1" (2

'-0

/1 6"

N S

8" CLEARANCE7/8"

N S

G 1/

0 2' 4'1'

6"0 3" 1'

S-002 A1

S-002 A5

S-003 F17

1/8" SEAL INTERACTION

BETWEEN TOP AND

BOTTOM SECTIONS

PLAN

NORTH

11'-2" CL OF LIFTING LUG TO CL OF LIFTING LUG (CONTROL DIMENSION)

D B

C H

D B

D R

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C O

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SHEET ID

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S-003

1. SEE GENERAL NOTES ON S-001.

2. TOLERANCES SHOWN APPLY TO ALL BULKHEADS.

3. SOME FEATURES AND COMPONENTS HAVE BEEN HIDDEN FOR CLARITY.

4. DFT FOR COMPLETED COATING SYSTEM NOT TO EXCEED 7.0 MILS ON

SURFACES WITHIN THE COUPLING TOLERANCES.

GENERAL NOTES

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

ELEVATION - DOWNSTREAM VIEWA5SCALE: 3/4" = 1'-0"

ELEVATION - END VIEWA1

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

PLAN VIEWL5

ABOUT CL

SYMM

CL - CL OF BEARING BARS (CONTROL DIMENSION)21'-2"

90° 90

90°

SCALE: NTS

DETAILB17

ABOUT CL

SYMM

HORIZ FLG PL

END FLG PL,

SURFACE OF

7/8" SKIN PL

SURFACE OF

OF END WEB PL

OUTSIDE SURFACE

C.125f CBA.125b

A.125f

OF END WEB PL

OUTSIDE SURFACE

2'-7 15/16"

1'-11 7/16"

OF BEARING BAR

BEARING SURFACE

7/8" SKIN PL

SURFACE OF

GUIDE SHOE

UPPER

GUIDE SHOE

LOWER

2 PLCS

OF GUIDE SHOES

D/S INSIDE SURFACE

2 PLCS

OF GUIDE SHOES

U/S INSIDE SURFACE

F.063f

B O

M O

D F

O T

O P

O F

'-2

SEAL BAR

TOP OF HORIZ

END WEB PL

END FLG PL,

BOTTOM OF2 SURFACES

.03d

2'0 1' 4'

D D.03d

S-003 A5

S-003 A1

SYMM

ABOUT CL

BEARING

SURFACE OF

BEARING BAR

BEARING

BAR

END FLG

END PL

SEAL BAR

S-003 B17S-003

B17

TOP SEAL PL

SURFACE

SIDE SEAL BACKING

BAR SURFACE

BOTTOM SEAL

BACKING BAR

SURFACE

.03d

3 PLCS

SCALE: 3"=1'-0"

COUPLING TOLERANCESF17

TOP BULKHEAD

BOTTOM

BULKHEAD

.125" CLEARANCE

BOTH SIDES

SEE NOTE 4

1.75" +.000/-.125

252.250" +.125/-.000

INSIDE TO INSIDE LUGS

250.000 +.000/-.125

INSIDE TO INSIDE LUGS

6"0 3" 1'S-002 A1

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S-101

1. SOME FEATURES AND COMPONENTS ARE OMITTED FOR CLARITY.

2. CONTRACTOR MAY ELECT TO CUT THE ENTIRE FLANGE SIDE ASSEMBLY

FROM 1" THICK ROLLED PLATE.

3. PAINT ALL STRUCTURAL STEEL SURFACES INCLUDING THOSE MACHINED

PER SECTION 09 97 02.13 26. DO NOT PAINT STAINLESS COMPONENTS OR

RUBBER SEALS.

4. TOP AND BOTTOM WEBS ARE PART OF THE DAMMING SURFACE AND MUST

BE COMPLETELY SEALED. SEE S-001 FOR NDT REQUIREMENTS FOR

INTERSECTING WELDS AT CORNERS OF THESE WEBS.

GENERAL NOTES

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

PLAN VIEWL5

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

ELEVATION/SECTION - DOWNSTREAM VIEWA5SCALE: 3/4" = 1'-0"

ELEVATION - END VIEWA1 SCALE: 3/4" = 1'-0"

SECTIONA17

CL TO CL OF J-BULB SEALS20'-8 3/4"

OUTSIDE TO OUTSIDE OF GUIDE SHOES (CONTROL DIMENSION)21'-10 1/4"

CL TO CL OF END PLS, BEARING BARS21'-2"

GUIDE SHOES

CL OF

7/8" SKIN PL

FACE OF

O U

E O

'-5

2' -1

5' -9

6' -0

/1 6"

HOLE

CL COUPLING

TYP

SEAT

DOG

TYP

SHOE

GUIDE

OF WEB PL

TOP SURFACE

4'-11 1/2" (CONTROL DIMENSION)

OF SKIN PL

OUTSIDE EDGE

OF LIFTING LUG

OUTSIDE EDGE

5'-7"

ABOUT CL

SYMM

7/8" SKIN PL

2' -0

-0

2' -0

-0

1' -1

1" 1'

-1 1"

1' -1

1" 1'

-4

/1 6"

S-101 A1

S-101 A

S-101 A5

S-501 A1

S-501 A10

S-504 A1

2' -0

1'-10 1/4" 1'-9" 1'-9" 1'-9" 1'-9" 1'-9"

1' -2

BOTTOM OF

FLANGE

COUPLING

LUGS FCM

LIFTING

LUG FCM

1/2" TOP STIFFENER PL

9 PLCS

3/4" TOP DIAPHRAGM PL

2 PLCS

1/2" DIAPHRAGM PL

19 PLCS

1" X 11" INT FLG

6 PLCS

1" X 5 1/2" TOP FLG

1" X 14 3/8" BOTTOM

FLG

3/4" BOTTOM

WEB1/2" BOT STIFFENER PL

9 PLCS

2'0 1' 4'

4' -2

-2

/1 6"

'-4

'-3

5/8" TOP WEB

1/2" INT WEB

6 PLCS

S-101 A17

4 PLCS, BOTH SIDES

1/2" X 8" SIDE STIFFENER

1/2" TIE PL, TYP

'-4

S-101 A5

S-504 F15

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GENERAL NOTES

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

ELEVATION/SECTION - DOWNSTREAM VIEWA5SCALE: 3/4"=1'-0"

END VIEWA1

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

PLAN VIEWL5

S-102 A5

S-102 L5

FLOW

O W

S-102 A1

S-505 A7

S-505 A13

S-505 E13

S-505 H8

S-505 A1

2'0 1' 4'

S-502 A1

E309 ELECTRODE,

TYP. SEE NOTE 31/4

3' -6

TYP1/4

S-506 F8

1. SOME FEATURES AND COMPONENTS ARE OMITTED FOR CLARITY.

2. GUIDE SHOE SUBASSEMBLIES ARE TO BE STAINLESS STEEL ASTM A240 UNS

31603. SEE S-505 FOR DETAILS.

3. WELD PER AWS D1.6. 100% PT INSPECTION PER AWS D1.6.

4. CONTRACTOR MAY ELECT TO CUT THE ENTIRE FLANGE SIDE ASSEMBLY

FROM 1" THICK ROLLED PLATE.

5. PAINT ALL STRUCTURAL STEEL SURFACES INCLUDING THOSE MACHINED

PER SECTION 09 97 02.13 26. DO NOT PAINT STAINLESS COMPONENTS OR

RUBBER SEALS.

6. TOP AND BOTTOM WEBS ARE PART OF THE DAMMING SURFACE AND MUST

BE COMPLETELY SEALED. SEE S-001 FOR NDT REQUIREMENTS FOR

INTERSECTING WELDS AT CORNERS OF THESE WEBS.

TYP1/4

1/4

7/8" SKIN PL

EXTENSION

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

SECTIONA17

TYP 1/4

1/4

TYP 1/4

1/4

3'-3"-0"4'

5 3/4"

(BOTH ENDS)

SEAL ASSEMBLY

FOR SIDE AND BOTTOM

END FLG CUTOUT

D R

H O

F O

R 1'

- 7 /8

BULKHEAD

CL OF

BULKHEAD

CL OF

S-102 A5

S-102 A17

S-504 A8

S-504 K8

S-504 F8 S-504

A15

4" DIA DRAIN

HOLES TYP.

ALL INT WEBS

D B

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S-501

1. SOME FEATURES AND COMPONENTS ARE HIDDEN FOR CLARITY.

2. THERE ARE INTERSECTING WELDS LOCATED AT THE CORNERS OF THE TOP

AND BOTTOM WEBS, 16 WELD JOINTS IN TOTAL. SEE GENERAL NOTES FOR

NDT REQUIREMENTS.

GENERAL NOTES

SCALE: 3"=1'-0"

DETAIL - END PLATEA10SCALE: 3"=1'-0"

DETAIL - LIFTING LUGA1

O W

FLOW

1'-0 7/8" (CONTROL DIMENSION)

9 5/8"11 7/8"

LIFTING LUG

OF WEB PL

TOP SURFACE

VERT TIE PL

END FLG PL, &

U/S EDGE OF FLG PL,

TOP FLG PL

SEAL BAR

2'-4"

J-BULB SEAL

BEARING BAR

1/2" END PL

CL OF END PL

S-101 A17

S-101 A5

S-504 K1

S-504 F1

7/ 8"

2' -4

7" (C

O N

L D

7"2"

1' -9

O N

L D

TYP1/4

1/4

CJP, PREP

SKIN PL

SEE NOTE 2

1/4

CJP, PREP

SKIN PL

SEE NOTE 2

1/4

TYP, WRAP TOP

AND BOTTOM

WITH 5/16 FILLET

5/16 5/16

6"0 3" 1'

ACCESS, TYP

R 2" WELD

10 1/2" (CONTROL DIMENSION)

7/8" SKIN PL

1" END FLG

2 PLCS

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S-502

1. SOME FEATURES AND COMPONENTS ARE OMITTED FOR CLARITY.

2. SLOT TOP WEB FOR LIFTING LUGS.

3. AFTER PRESS FIT INSTALLATION OF PIN TO RISER, THE GOVERNMENT

RESERVES THE RIGHT TO PERFORM QA INSPECTION UNLESS WAIVED IN

WRITING. DO NOT PROCEED WITH WELDING UNTIL AFTER GOVERNMENT

INSPECTION AND ACCEPTANCE. PIN TOLERANCE IS 3.000" +0.0000/-0.0020".

LUG HOLE TOLERANCE IS +0.0012/0.0000".

4. TOP SEAL PLATE TO BE STAINLESS STEEL ASTM A240 UNS31603.6. WELD PER

AWS D1.6. 100% PT INSPECTION PER AWS D1.6.

GENERAL NOTES

SCALE: 3"=1'-0"

SECTION - LIFTING LUGA11SCALE: 3"=1'-0"

DETAIL - LIFTING LUGA1

2" 2"

1" 1"

1' -3

O N

L D

5/8" TOP WEB PL

LIFTING LUG

1" TOP FLG

J-BULB SEAL

1' -1

3 1 /2"

3"n

3 1/2" 3 1/2"

LIFTING LUG

SEAL BAR

TOP WEB PL

TOP FLG PL

INT FLG PL

S-502 A1

3" ASME B4.1

FN2 X 0'-7 1/4"

SEE NOTE 3

3/4" TOP DIAPHRAM PL

1/2" INT DIAPHRAM1/2" INT WEB PL

6"0 3" 1'

TOP 3/4" DIAPHRAGM PL

1/2" TIE PL

TYP, SEE

NOTE 3

5/16 5/16

TYP, SEE

NOTE 2

1/4 1/4

E-309

ELECTRODE

SEE NOTE 4 1/4

TYP

1/4 1/4

TYP

1/4 1/4

TYP

1/4 1/4

2 1/4" 2 1/4"

3/8" 3/8"

TYP

2"R

S-502 A11

S-502 A1

TOP SEAL PL

SEE NOTE 4

7/8" SKIN PL

TYP

5/16 5/16

LIFTING LUG FCM

1" X 1" CHAMFER

LIFTING

LUG

D B

C H

D B

D R

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S-503

1. SEE GENERAL STRUCTURAL NOTES ON S-001.

2. TOLERANCES SHOWN APPLY TO ALL BULKHEADS.

3. SOME FEATURES AND COMPONENTS HAVE BEEN HIDDEN FOR CLARITY.

4. PAINT ALL STRUCTURAL STEEL SURFACES INCLUDING THOSE MACHINED PER

SECTION 09 97 02.13 26/ REMOVE RUBBER SEALS BEFORE PAINTING.

5. SEAL BOLTS TO BE 5/8" DIAMETER FLAT COUNTERSUNK HEX SOCKET ASTM F593

ALLOY GROUP 2 UNS S31600. LIMIT THREAD LENGTH SO THREADS DO NOT ENTER

SEAL PLANE.

6. PROVIDE SEAL BOLT ASSEMBLIES WITH FLUOROPOLYMER COATING PER

SECTION 05 59 13.01 23.

7. PROVIDE TOP AND SIDE SEALS AND MOLDED CORNER SEALS WITH FLUORO-

CARBON FILM PER SECTION 05 56 09.00 26.

8. VULCANIZE JOINTS BETWEEN MOLDED CORNER SEALS WITH FLUORO-CARBON

FILM PER SECTION 05 56 09.00 26.

9. MACHINE ALL SURFACES IN CONTACT WITH SEALS TO 250 MICROINCHES.

10. COUNTERSINK BOTH SEAL CLAMPS AND BACKING BAR FOR 5/8" DIAMETER SEAL

BOLTS.

11. FABRICATOR TO DEVELOP BOLTING PATTERN. MAX SEAL BOLT SPACING IS 4

INCHES ON CENTER. ALL SEAL SPLICES ARE TO BE SHOWN ON SHOP DRAWINGS

AND TO BE LOCATED HALFWAY BETWEEN BOLTS.

GENERAL NOTES

SCALE: 3"=1'-0"

BACKING BAR - TOP SEALK1

SCALE: 1"=1'-0"

BACKING BAR - SIDEA1

SCALE: 1"=1'-0"

BACKING BAR - BOTTOM SEALE1

14'-11 1/4"

SCALE: 3"=1'-0"

MOLDED TOP CORNER SEALF16

SCALE: 3"=1'-0"

MOLDED BOTTOM CORNER SEALA15

1 3/4"

1/ 8"

(ONE CORNER SHOWN, ONE MIRRORED OPPOSITE HAND)

6 7/16"

8 3/16"

SCALE: 6"=1'-0"

DETAIL - J-BULB SEALK17

(ONE CORNER SHOWN, ONE MIRRORED OPPOSITE HAND)

SCALE: 1"=1'-0"

CLAMP BAR - SIDEC1

SCALE: 3"=1'-0"

CLAMP BAR - TOP SEALM1

14'-11 1/4"

7/8

4 1/8"

1/4

7/ 8"

SCALE: 1"=1'-0"

CLAMP BAR - BOTTOM SEALG1

/1 6"

2 1/8"

20'-7 1/2"

20'-6 1/2"

TYP

1/4"

TYP

1/4" R

3 1/2"

10'-3 3/16"

1/8"

20'- 1/2"

1/4

7/16"

1/ 4"

1/8"

10'- 1/16"

1/2"

7/16"

1/4

1/8"

7'-5 9/16"

1/4" R

TOP EDGE

EDGE

BOTTOM

1/4" R

1/2"

1/4" R

7/16" 1 3/

0 1' 2'6" 6"0 3" 1'

3"0 6"1-1/2"

NOTE: ONE SHOWN, OPPOSITE HAND MIRROED

20'- 1/4"

D B

C H

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S-504

1. SOME FEATURES AND COMPONENTS ARE HIDDEN FOR CLARITY.

2. GRIND TOP SIDE OF WRAP FLUSH. WRAP BOTTOM SIDE WITH 5/16 FILLET.

3. WRAPS ENDS WITH FILLETS CONTINUING INTO SIDE AND TOP SEAL BACKING

BAR FILLET WELDS.

4. TYPICAL WELD DETAIL FOR BOTH TOP AND BOTTOM WEB CONNECTIONS TO

SIDE SEAL BACKING BAR.

5. TOP SEAL PLATE TO BE STAINLESS STEEL ASTM A240 UNS31603. WELD PER

AWS D1.6. 100% PT INSPECTION PER AWS D1.6.

GENERAL NOTES

SCALE: 6"=1'-0"

DETAIL - TOP J-BULB SEALK1

SCALE: 6"=1'-0"

DETAIL - BOTTOM J-BULB SEALA1

SCALE: 6"=1'-0"

DETAIL - SIDE J-BULB SEALF1

1/ 2"

TOP WEB PL

SURFACE OF

SEAL BAR

END PL

TOP FLG PL

TOP WEB PL

J-BULB SEAL

2 5/8"

N 1/

END PL

BEARING BAR J-BULB SEAL

SEAL BAR

END FLG

7/8"

BOTTOM FLG PL

J-BULB SEAL

STIFFENER

CLAMP BAR

S-501 A1

S-501 A10

S-101 A17

SCALE: 3"=1'-0"

DETAIL A8S-102

SCALE: 3"=1'-0"

DETAIL A15S-102

SCALE: 3"=1'-0"

DETAIL F8S-102

SCALE: 3"=1'-0"

DETAIL F15S-101

SCALE: 3"=1'-0"

DETAIL K8S-102

A5 3"0 6"1-1/2"

3"0 6"1-1/2"

3"0 6"1-1/2" 6"0 3" 1'

1/4 1/4

SIDE SEAL

BACKING BAR

END FLG

TOP SEAL PL

SEE NOTE 5

TOP WEB PL

3/8

SIDE SEAL

BACKING BAR

END FLG

TOP SEAL PL

TOP WEB PL1/4

SEE

NOTE 4

TYP

1/4 1/4

TYP 5/16

5/16

1/4 1/4

5/16 5/16

BOTTOM SEAL

BACKING BAR

1 1/4" BOTTOM

SEAL PL

END FLG

SIDE SEAL

BACKING BAR

3/8

TOP SEAL PL

SEE NOTE 5

TOP WEB PL

TOP SEALTOP FLG

END FLG

1/4

5/16 5/16

TYP, SEE

NOTE 2

END FLG

SIDE SEAL

BACKING BAR

TOP FLG

TOP SEAL

BACKING BAR

3/8

TYP, SEE

NOTE 3

2 5/8"

1'-0" R

2 3/8"

E-309

ELECTRODE

SEE NOTE 5

3/8" TOP SEAL PL

E-309

ELECTRODE

SEE NOTE 5

1 1/4" BOTTOM

SEAL PL

END WEB PL

R 2"

7/8" SKIN PL

EXTENSION

3/8 3/8

TYP, WRAP

W/GROOVE WELD

AND GRIND ENDS

FLUSH

R 6"

3/4"

R 6"

3/4"

1'-0 7/8" (CONTROL DIMENSION)

D B

C H

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S-505

1. SOME FEATURES AND COMPONENTS ARE HIDDEN FOR CLARITY.

2. GRIND BOTTOM SIDE OF WRAP FLUSH. WRAP TOP SIDE WITH 5/16 FILLET.

3. THERE ARE INTERSECTING WELDS LOCATED AT THE CORNERS OF THE TOP AND

BOTTOM WEBS, 16 WELD JOINTS IN TOTAL. SEE GENERAL NOTES FOR NDT

REQUIREMENTS.

4. WELD AROUND UNDERSIZE HOLE BEFORE MACHINING. PROVIDE 1/4" MINIMUM

THROAT AFTER MACHINING.

5. COAT INSIDE OF PINNING HOLE WITH 2.5MILS OF PRIMER PER SECTION 09 97 02.13

26. AFTER CURING, COAT WITH MARINE GRADE ANTISEIZE.

6. SEE SECTION 05 59 13.01 26 FOR FULL COUPLING PIN MATERIAL REQUIREMENTS.

GENERAL NOTES

SCALE: 6"=1'-0"

DETAIL H1

SCALE: 6"=1'-0"

DETAIL A1 SCALE: 3"=1'-0"

SECTIONA7

SCALE: 3"=1'-0"

DETAIL H8

SCALE: 3"=1'-0"

SECTION A13

SCALE: 3"=1'-0"

SECTION E13

"1 3/4 "6 3/4

TOP FLG PL

BACKING BAR

TOP SEAL

BACKING BAR

SIDE SEAL

BEARING BAR

END FLG PL

END WEB PL

SKIN PL

BEARING BAR

END FLG PL BOTTOM FLG PL

BOTTOM SEAL PL

END WEB PL

"28

BOTTOM SEAL PL

BOTTOM WEB PL

SKIN PL

FLG PL

BOTTOM

BOTTOM STIFFENER PL

S-102 L5

NOTE: OPPOSITE HAND SHOWN FROM CALLOUT

S-102

A5 S-102

S-102 A5

TYP

1/4 1/4

5/16 5/16

SEE

NOTE 3

5/16 5/16

SEE

NOTE 3

TYP

5/16 5/16

SEE

NOTE 2

(C O

O L

O N

"5/8

SKIN PL

STIFFENER PL

TOP WEB PL

TOP SEAL

BACKING BAR

TOP SEAL PL

TOP FLANGE PL

END WEB PL

SKIN PL

3"0 6"1-1/2" 6"0 3" 1'

1/4 TYP

TYP

1/4 1/4

1/4 TYP

3/8

TYP3/8

TYP, SEE

NOTE 41/4 (3/8)

7/8" BOTTOM SKIN PL

EXTENSION

BOTTOM

BEARING EDGE

3 PLATES

TYP3/8

NOTE

MAC

HIN

2 5

/8 n

"10

"3 1/16"1"15/16

"3"4

5/ n

FLO

NOTE: OPPOSITE HAND SHOWN FROM CALLOUT

"1 3/4

"1/2

"5 7/8

"5/8 "4 1/4 "1

-.0

"3/8

SCALE: 6"=1'-0"

COUPLING LATCHA17

SCALE: 6"=1'-0"

COUPLING PIN K14

SCALE: 12"=1'-0"

HEX CAP SCREWC17 0 1" 2"1/2"

3/8" 7/16" 5/8"

1/8"

5/8"-11 THREAD

1 7/16"

25/32 n

CUTOUT

END FLG"5 3/4

125 ALL OVER

1/8" 45° CHAMFER

R 2"

ASTM F593 UNS31600

ASTM A564 UNS 17400

S-505 H1

S-505 A1

FLOW

1 3/4"

1 3/4" 1" 1 3/4"

4 1/2"

R3"

R1 1/4"

1/2"

3 1/4"

SEE

NOTE 4

2" +0.125"/-0.000"

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

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S-506

1. SEE GENERAL STRUCTURAL NOTES ON SHEET S-001

2. CONTROL DIMENSIONS APPLY TO ALL BULKHEADS.

3. SOME FEATURES AND COMPONENTS HAVE BEEN HIDDEN FOR CLARITY.

4. MACHINE DOG SEAT AND COUPLING LUG FROM OVERSIZE A709 GR 50 F2

STOCK. ENTIRE ASSEMBLY TO HAVE 250 MICROINCH SURFACE FINISH.

5. SPRINGS TO BE ASTM A304 ALLOY 5160H WITH A MINIMUM HARDNESS OF 55

HRC.

6. SPRING BOLTS TO BE 3/4" FLAT COUNTERSUNK HEX SOCKET BOLTS

CONFORMING TO ASTM F593 ALLOY GROUP 2 UNS S31600. COAT BOLT

ASSEMBLY WITH FLUOROPOLYMER COATING PER SECTION 05 59 13.01 26.

7. PROVIDE SPRING RETAINER BOLTS WITH ISOLATION SLEEVE FOR 3/4"

FLATHEAD SCREW TO ACT AS SEALING BARRIER. SLEEVE TO HAVE WALL

THICKNESS OF .28" +/- .002". SIZE BOLT HOLE TO ACCOMMODATE SLEEVE.

8. SLOT TOP WEB TO RECEIVE COUPLING LUG. TOP WEB IS PART OF THE

DAMMING SURFACE AND MUST BE COMPLETELY SEALED.

9. WELD PER AWS D1.6. 100% PT INSPECTION PER AWS D1.6.

GENERAL NOTES

SCALE: 6"=1'-0"

DETAIL K14

SCALE: 6"=1'-0"

DOG SEAT - MIDDLE AND LOWER (4 PLCS)A1 SCALE: 6"=1'-0"

DOG SHOE (4 PLCS) ASTM A240 UNS 31603A8

2 1/4" 1 1/2" 2 1/4"

2" 4"

3"3"

1 1/8"

ABOUT CL

SYMM

7/8"3"

3 7/8"

SCALE: 3"=1'-0"

LEAF SPRING (4 PLCS)A14 SCALE: 3"=1'-0"

SECTIONA17

ABOUT CL

SYMM

1 1/8"3 3/4"1 1/8"

2"3' -5

SPRING

BOTTOM RETAINER

1/4" DRAIN ONLY IN

5/16

TYP, E-309 ELECTRODE

SCALE: 6"=1'-0"

DETAILF8

SCALE: 6"=1'-0"

DOG SEAT & COUPLING LUG - TOP (2 PLCS)G1

S-102 A5

45°

2' -1

1/2"

TYP ALL

SIDES

5/16TYP

5/16 TYP

TYP5/16

TYP1/4

3"0 6"1-1/2"

3"0 6"1-1/2" 3"0 6"1-1/2"

3"0 6"1-1/2"

S-506 K14

TYP, GRIND FLUSH

TO RECEIVE COUPLING

LUG1/4

TYP, SEE NOTE 8

5/16

SEE NOTE 9

5/16TYP

R3'-9 1/2"

3/ 4"

1' -4

ABOUT CL

SYMM

1/ 2"

1 1/4"

3/4"

0" D

1" 4 1/2" 1"

1/16" 4 11/32"

1 1/16"

2 3/4" 1" 2 3/4"

6 1/2"

3 1/4" 3/4"

5/ 8"

3/8"

1' -0

3/ 8" 3/8"

1 1/8"

COUPLING LUG FCM

ADD RADIUS WITH

POCKET AS REQUIRED

BY MACHINING

ADD RADIUS TO CORNER

OF LEAF SPRINGS AS

REQUIRED BY

MANUFACTURER

3/4"

TAP 5/8"X11NC

TYP 1/4

S-506 A17

S-506 A14

S-506 A17

Sheets and Views

G-001XXX-ANSI_D

G-002XXX-ANSI_D

G-401XXX-G-401

G-901XXX-G-401

G-902XXX-G-401

S-001XXX-ANSI_D

S-002XXX-ANSI_D

S-003XXX-ANSI_D

S-101XXX-ANSI_D

S-102XXX-ANSI_D

S-501XXX-ANSI_D

S-502XXX-ANSI_D

S-503XXX-ANSI_D

S-504XXX-ANSI_D

S-505XXX-ANSI_D

S-506XXX-ANSI_D

	2025-06-12T07:25:47-0700
DIBLASI.VINCENT.JOHN.1236867877

	2025-06-12T08:33:00-0700
CALNON.JAMES.D.1231641170

File details come from the government source that posted it. Updated Jul 23, 2025.