B08_Attachment_2_-_Structural_Rehabilitation_Recommendations_-_Initial_Survey_Report__February_2021.pdf

ATTACHMENT 2

Structural Rehabilitation Recommendations – Initial Survey Report, February 2021

STRUCTURAL REHABIL ITATION RECOMMENDATION

INIT IAL SURVEY REPORT

February 2021

Attachment 2

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HERCULES

HULL CHARACTERISTICS

Year Built 1907

Length Overall 152 ft. 6 in

Length of Waterline 136 feet Maximum Beam 27 feet

Draft (forward) 10 feet

Draft (aft) 15 feet

Gross Tonnage 414 tons

Net Tonnage 221 tons

Construction Riveted Steel

Engine Steam Triple expansion 1,000 HP, 17x24x41x30

Boiler Single End, Scotch Wet Back Return oil fired overall length 15' X 12’

Furnaces 4 Fox‐type, corrugated

Fuel Capacity 105,000 gal

ABS Class for Individual Wastage Allowances (used as baseline)

TABLE 2

Individual Wastage Allowances, Conventional Vessels Under 90 Meters (295 Feet)

Main Deck Plating 25% Bottom Plating 25% Keel Plating 25% Sheer Strake 25% Bilge Strake 30% Forecastle 30% Internals and Bulkheads 30%

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COATING

DEFINITION OF COATING CONDITIONS

Rating / Condition GOOD FAIR POOR

Minor >20%

<20% >20%

Minor <10% >10%

Minor <20% >20%

RI3 R14 R15

Spot Rust / Light Rust Edges / Welds

Hard Scale

General Breakdown

ISO

European Rust Scale RE3 RE5 RE7

ASSESSMENT FOR SCALE BREAKDOWN

STEEL REPAIRS/RENEWALS

Attachment 2

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REFERENCE OF SHELL PLATE

FOR THE RIVET LAP SEAM

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Plating Lap Plan

Free Edge inboard – Solid blue line Free Edge Water Side – Dashed light blue

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RECOMMENDED REPAIRS

FEBRUARY 2021

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PREAMBLE

STEEL REPAIRS/RENEWALS AND INSPECTION

1. Contractor shall include all cost for safety, steel, labor, accessory, work, staging, lighting, ventilation, and additional services.

2. The contractor shall coordinate work with tank cleaning, tank coating and tank inspection.

3. Prior to any work, confirm insulation to be free of asbestos and paint to be free of lead. If abatement is required, inform to NPS personnel.

4. All access openings, if required, are to be included in the cost and are to be approved by to NPS personnel. All weights are estimates and are to be verified by contractor.

5. During all working hours, NPS personnel and their staff shall have free, ready, and safe access to the work and to any other place where work is being done, where materials are being processed or stored in connection with the work including yards, docks, workshop, storerooms and offices of yard and subcontractors.

6. All new steel in coated tanks and in way of coating in partially coated tanks shall be grit blasted to a near white finish (SSPC‐SP 10) and primed before installation.

7. All material type, dimensions and weights in this specification are approximate and are to be verified by the shipyard all dimensions or weights found to differ with those given in the specification are to be bought to the attention of NPS personnel for verification.

8. All fit‐up for steel and welding are to be ABS standards and are to be inspected and approved by NPS personnel. All weights are estimates and are to be verified by contractor.

9. Bulkhead sections renewed shall be renewed with new stiffeners extending at least 150mm into old section of bulkhead plates and butt welded to existing stiffeners at a 450 angle. Complete new oil tight collars and brackets shall be installed where required.

10. Where steel renewals pass through the bulkheads or in bulkheads, tanks are to be hydro or air tested to ensure water tightness of treated bulkheads after completion.

High pressure air (air lance) would be an acceptable alternative.

11. Allow for renewal of attached tripping brackets and flat bar stiffeners in way of renewed structural members as given in specification.

12. Where a large section of plating to be renewed, greater than ±2 square meters, support PLATES (strongbacks, bridge plates) to be installed to prevent distortion of existing structures. Removed after fit‐up found satisfactory and attachments to be ground flush.

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PREAMBLE

STEEL REPAIRS/RENEWALS AND INSPECTION

13. Quantities of steel specified are approximate. Contractor is responsible for determining correct type of material and quantities of steel.

14. Pipe Supports:

U‐Bolts shall be manufactured from solid stainless steel bar stock. Teflon pads (1/3 pipe diameter in width) shall be installed under the pipeline spanning the bolt patterns.

Saddle‐Type hanger/support shall be manufactured from flat bar, blasted and prime coated prior to installation, with two (2) legs per hanger unless directed otherwise.

Clamping areas shall be wrapped with teflon.

15. Changes in the grade of steel and/or the thickness of steel must have the prior approval to NPS personnel.

16. All disturbed coatings including adjacent deck and adjacent tanks are to be repaired by blasting to SSPC‐SP3 and recoated in accordance with the paint schedule.

17. NPS personnel and their staff shall have the right to an early inspection unescorted.

18. Upon completion of all steel repairs, clean tanks to satisfaction of NPS personnel to removal of staging.

Upon completion of cleaning, remove staging and again clean tanks to satisfaction of NPS personnel.

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SHELL PLATING BACKGROUD

From previous boatyard and drydocking, numerous locations of the hull on the port and starboard side have been partially cropped and renewed using full penetration butt weld method, Weld build up/Clad weld isolated areas that had large pits and installing doubler plates below the water line using ASTM‐A36.

Of note, November 23, 1982, during the drydock period. From review of thickness measurements of the hull, tolerance used looks to be 0.25" and any pinholes found were clad welded. Also, from Hull and Cargo Surveyors, Inc. decided that a belt/doubler to be installed "for appearance sake, made to resemble and Ice Protection Belt."1 The doubler/belt was three

(3) feet in height installed full length on the port and starboard side with a material thickness of 5/16". The doubler was edge welded, bolted every third frame (63") with bolt heads ring welded.

The most recent documented repair of the shell plate found is dated December 29, 2009 and was done at Bay Ship and Yacht Co.

Fwd/Stbd – draft marking from 8' to 11' Midship/Stbd – in way of lower bumper

Detail of doubler shown in the following sketch.

1 See Report SFH 82009 – Supplement Report.

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HULL AND CARGO SURVEYORS, INC.

INLAND MARINE ‐ INSPECTIONS ‐ LOSS PREVENTION ‐ SHIP 8c AIR CARGO

249 TEWKSBURY AVENUE, RICHMOND, CALIFORNIA 94801

TEL. C415> 524‐4402

November 23, 1982

SFH 82009 ‐ Supplemental Report Tug "HERCULES" Ref., Order# PX‐8140‐2‐0532 Golden Gate National Recreation Area See report dated June 23, 1982.

Drydocking:

Vessel was towed from Hyde Street Pier to Pacific Dry Dock and Repair Company, Oakland, California on Monday, September 13, 1982. Preliminary work consisting mainly of fuel tank cleaning was accomplished with vessel alongside pier afloat.

During drydock period, the vessel was sandblasted from keel to rub rail, lower hull and waterline area thickness gauged from outside, a waterline doubler strake was added to hull, suspect rivet heads were epoxy filled, sea chests and overboards below water line were opened and renewed, head overboard discharge removed and blanked, lower rub‐rail partially renewed and hull coated with primer, 2 coats of anti ‐corrosive and 2 coats of anti‐fouling to boot top.

Simultaneous interior work on renewing and caulking fuel tank bulkheads, fore and aft peak tank bulkheads, renewing boiler uptakes, renewing anchor wind‐lass and partially renewing bulwark was accomplished while on dry dock.

The interior and deck work was completed after vessel was refloated and bulwarks and rub‐rail sandblasted and coated inside and out.

Vessel was returned to Hyde Street Pier on November 15, 1982. New anchors had been set for her mooring during above period.

IN ACCEPTING THIS REPORT OR INSTRUMENT IT IS AGREED THAT THE EXTENT OF THE OBLIGATION OF THIS FIRM WITH RESPECT THERETO IS LIMITED TO FURNISHING A SURVEYOR BELIEVED TO BE COMPETENT, AND IN THE MAKING OF THIS REPORT OR INSTRUMENT THE SURVEYOR 15 ACTING ON BEHALF OF THE PERSON. COMPANY ANO/OR FIRM REQUESTING THE SAME AND NO LIABILITY SHALL ATTACH TO THIS FIRM FOR THE ACCURACY, ERRORS ANO

OMISSIONS THEREOF.

Attachment 2

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Page Two.

Gauging:

Preliminary gaugings had been accomplished from hull interior before dry‐ dock period. Exterior gaugings were taken in four belts around hull approximately 18 inches above and below waterline and 1‐ foot above keel and 5 feet above keel.

All of the above readings are summarized on attached sketches of vessel 's profile.

It is felt that hull has good structural integrity based on minimum thickness at about .250 inches on the average and ranging up to almost .500 inches.

However, it is noted that small, localized pitting has actually produced holes up to ¼" in diameter at some few places on hull plate. Every one of these places (about 6 in number) which were noted at this time were clad welded to bring steel plate back to average thickness. It is felt that current coating and maintenance schedule should prevent further deterioration, but it is recommended that hull be examined at each drydock period and pits welded up. Furthermore, unless cathodic protection is installed, there is a good possibility of further pitting at any pinhole in coating.

Doubler Plate:

Since waterline area is subject to most severe deterioration and many thin areas had been noted, it was decided to provide a 3‐foot‐wide belt of 5/16'' doubler plate around entire hull. This was, for appearance sake, made to resemble an "ice protection belt" as commonly installed on tugboats.

Doublers were completely edge welded, bolted through every third frame with bolt heads ring welded and air tested for integrity. Leaks along welds were gouged and rewelded and void between doubler and shell pumped full of Devran 230 anti‐corrosive.

It is felt that this is a structurally sound repair that should protect waterline area on a permanent basis.

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One small area of severe wastage from interior drip was found in way of paint locker in shop area on stbd. side below waterline. A doubler extending past two frames involved was welded over this area from waterline doubler plate to lapped butt below.

Rivets:

Rivets were randomly tap tested for integrity. They were found generally tight but about 30% were found to be grainy from corrosion. It was decided to seal these with an epoxy compound to prevent further deterioration and to strengthen connections.

Sea Chests:

All sea chests were opened and examined. All were found to be sound and were cleaned only. Valves were renewed and hydro tested for integrity. Intake at main circulation was found with sheared stock which was repaired.

Stern Tube:

Packing was renewed at stern gland. Bearings were examined without removals and it was found that shaft and bearings had been renewed at some point with‐ out much service since renewal.

It is felt that shaft and bearings are in good condition in so far as can be determined without removal and run out.

Fuel Oil Tanks:

After cleaning of fuel oil tanks an air test was made. It was found that many leaks existed between stbd.

and port tanks. In fact, it is felt that original intention was not to have a completely oil tight bulkhead but only to alleviate free‐surface effect of one large tank. To reduce cross leakage and consequent reballasting, leaky seams were lead caulked.

After bulkhead on port side was found with doubler plate welded over old repair area. This was steamed out, removed and further repairs made by inserting hole in original bulkhead and ring welding pulled rivets. A new doubler plate was installed to protect bulkhead from corrosion.

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Fore Peak Tank:

Several small, wasted areas were doubled from inside and leaks in way of shell plate to bulkhead stopped with epoxy caulking.

General condition of inside of tank is fair to good, protected with cement wash. It is recommended that this protective coating be renewed at some future date.

Aft Peak Tank:

Bulkhead to engine room found severely wasted in way of drip from shaft gland. Temporary repairs made with doubler and epoxy, but this is not satisfactory over long term. It is recommended that this bulkhead be renewed from shop level to hull at next yard period.

Again, interior of tank is fair to good with cement wash. This should be renewed when possible.

Summary:

Overall condition of hull is now felt to be good. Minor pitted areas will probably have to be repaired at future yard periods and if further deterioration occurs on rivets, some of these should probably be considered for renewal in the future.

As machinery renewals progress, vessel is felt to be satisfactory for limited service as well as sound for museum purposes.

HULL AND CARGO SURVEYORS, INC.

R. A. Wehnau

RAW/mab

Requested by: S. Hastings

GGNRA

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SHELL PLATING

PORT SIDE

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SHELL PLATING PORT SIDE

Repair/Renewal based on assessment of specific location of the hull plating with excessive wastage.

Note: Keel strake/CVK is highly suspect of excessive wastage and/or have pinholes from signs of damp cement in localized bays. At this time, from evaluation of accessible "A" strake P/S and their condition along with attached internals, an approximate repair to try and resolve possible ingress of seawater from suspect perforation.

NOTE: Taken from Dvorak and Brauer, Bay Shipbuilding, WI.

REPAIR OF OLD RIVETS

"Bobbing" ‐ cold working the point around the lip or edge with a riveting gun and small convex die to draw a seeping rivet tight.

"Frenching" ‐ veeing and wedging the lip of point metal firmly into the countersink with a special frenching tool and then filling in the trench with a small weld bead. This actually draws the rivet tight. (On the Great Lakes, we refer to this as frenching and welding.)

"Ring Welding" ‐ carefully welding a fine bead around a rivet point as temporary counter measure to leakage. Such a weld has a tendency to crack.

The cost of replacing a plate that is riveted is at least 5 times more expensive and more time consuming than one that is completely welded. For this reason, ship owners are always trying to minimize riveting.

See following sketch for details and locations. Option 1 for partial renewal.

"A" STRAKE

At this time, discovered three locations that is perforated, and outboard side (seaside) has a doubler plate patch. *Growth for repair expected and these are Dock items.

1. Recommend to crop plating ("A‐2") from 12" forward of Bhd 8 to 66" aft and from the free edge outboard (to "B" Strake) to the free edge inboard (Keel Strake). ABS Grade A mild steel 66" x 54" x 1/2". 504.9Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

2. Recommend to crop plating ("A‐3") from 12" forward of Frame 21 to 87" aft and from the free edge outboard (to "B" Strake) to the free edge inboard (Keel Strake). ABS Grade A mild steel 87" x 52" x 1/2". 640.9Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

3. Recommend to crop plating ("A‐10") from the existing backing bar forward of Frame 64 to 50" aft and from the free edge outboard (to "B" Strake) to the free edge inboard (Keel Strake). ABS

Grade A mild steel 50" x 48" x 1/2". 340.0Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

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"B" STRAKE

At this time, discovered two locations that is perforated, and outboard side (seaside) has a doubler plate patch. *Growth for repair expected and these are Dock items.

4. Recommend to crop plating ("B‐4") from 12" forward of Frame 21 to 108" aft and from the free edge outboard (to "C" Strake) to the free edge inboard (to "A" Strake). ABS Grade A mild steel

108" x 52" x 1/2". 795.6Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

"F" STRAKE (Sheer)

At this time, discovered three locations that is perforated, outboard side of plate (seaside) in way of the upper guard. *Growth for repair expected and removal of the retainers for the upper guard along with the gunwale on the main deck required for repair access.

Note: Projecting renewals to the retainers (x2), gunwale and bulwarks in way of shell plate renewal.

Method of repair to confirm with owner's, as built fasteners/retainers riveted to deck and shell.

5. Recommend to crop plating ("F‐5 and "F‐5a") from the existing free edge lap forward of Bhd 36 to 88" fwd and from the free edge lap to "E" Strake up to the free edge of plate. ABS Grade A mild steel 88" x 24" x 1/2". 299.2Lbs. Requires the upper timber bump guard to be inspected prior to removal. At this time layout is approximate and tentative growth of 50% once area is accessible.

6. Recommend to crop plating ("F‐9") from the existing free edge lap aft of Frame 57 to 50" aft and from the free edge lap to "E" Strake up to the free edge of plate. ABS Grade A mild steel 50" x

36" x 1/2". 255.0Lbs. Requires the upper timber bump guard to be inspected prior to removal.

At this time layout is approximate and tentative growth of 50% once area is accessible.

7. Recommend to crop plating ("F‐10") from the 12" fwd of frame 67 to 36" aft and from and from the free edge lap to "E" Strake up to the free edge of plate. ABS Grade A mild steel 36" x 36" x

1/2". 183.6Lbs. Requires the upper timber bump guard to be inspected prior to removal. At this time layout is approximate and tentative growth of 50% once area is accessible.

8. Isolated areas with excessive wastage, see sketch. Recommend a Weld Build up/Clad Weld areas as identified by owner's rep. Allow for ten (10) locations to build up 6" x 3" area.

Scuppers/Deck drains in way of plate renewal to save, move aside/or shop and clean to SSPC‐SP3, inform owner's rep to inspect hull and drain overboard flange (intent to repair as required by owner's rep). See following pages for details.

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Option 2 for renewal of entire strake of the shell plating.

"A" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock items. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

1. Recommend to crop the entire "A‐2" strake. ABS Grade A mild steel 14'‐0" x 54" x 1/2".

1,285.2Lbs.

2. Recommend to crop the entire "A‐3" strake. ABS Grade A mild steel 14'‐0" x 54" x 1/2".

1,285.2Lbs.

3. Recommend to crop the entire "A‐10" strake. ABS Grade A mild steel 14'‐0" x 54" x 1/2".

1,285.2Lbs.

"B" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock item. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

4. Recommend to crop the entire "B‐4" strake. ABS Grade A mild steel 14'‐0" x 52" x 1/2".

1,237.6Lbs.

"F" STRAKE (Sheer Strake)

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock items. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

5. Recommend to crop the entire "F‐5" strake. ABS Grade A mild steel 13'‐8" x 48" x 1/2".

1,115.2Lbs.

6. Recommend to crop the entire "F‐5a" strake. ABS Grade A mild steel 5'‐0" x 48" x 1/2".

408.0Lbs.

7. Recommend to crop the entire "F‐9" strake. ABS Grade A mild steel 14'‐0" x 48" x 1/2".

1,142.4Lbs.

8. Recommend to crop the entire "F‐10" strake. ABS Grade A mild steel 12'‐0" x 52" x 1/2".

1,060.8Lbs.

See following sketch for details and locations.

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SHELL PLATING

STARBOARD SIDE

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SHELL PLATING STARBOARD SIDE

Repair/Renewal based on assessment of specific location of the hull plating with excessive wastage.

Note: Keel strake/CVK is highly suspect of excessive wastage and/or have pinholes from signs of damp cement in localized bays. At this time, from evaluation of accessible "A" strake P/S and their condition along with attached internals, an approximate repair to try and resolve possible ingress of seawater from suspect perforation.

NOTE: Taken from Dvorak and Brauer, Bay Shipbuilding, WI.

REPAIR OF OLD RIVETS

"Bobbing" ‐ cold working the point around the lip or edge with a riveting gun and small convex die to draw a seeping rivet tight.

"Frenching" ‐ veeing and wedging the lip of point metal firmly into the countersink with a special frenching tool and then filling in the trench with a small weld bead. This actually draws the rivet tight. (On the Great Lakes, we refer to this as frenching and welding.)

"Ring Welding" ‐ carefully welding a fine bead around a rivet point as temporary counter measure to leakage. Such a weld has a tendency to crack.

The cost of replacing a plate that is riveted is at least 5 times more expensive and more time consuming than one that is completely welded. For this reason, ship owners are always trying to minimize riveting.

See following sketch for details and locations. Option 1 for partial renewal.

"A" STRAKE

At this time, discovered two locations that is perforated, and outboard side (seaside) has a doubler plate patch. *Growth for repair expected and these are Dock items.

1. Recommend to crop plating ("A‐2") from 12" forward of Bhd 8 to 66" aft and from the free edge outboard (to "B" Strake) to the free edge inboard (Keel Strake). ABS Grade A mild steel 66" x 54" x 1/2". 504.9Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

2. Recommend to crop plating ("A‐4") from 12" forward of Frame 28 to 42" aft and from the free edge outboard (to "B" Strake) to the free edge inboard (Keel Strake). ABS Grade A mild steel 42" x 52" x 1/2". 309.4Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

"B" STRAKE

At this time, discovered three locations that is perforated, and outboard side (seaside) has a doubler plate patch. *Growth for repair expected and these are Dock items.

3. Recommend to crop plating which would encompass "C" strake, release "C" strake in line from

12" aft of Bhd 8 to 48" aft, crop "B" and "C" strake from 12" aft of Bhd 8 to 48" aft, crop "B" strake 18" below the free edge outboard (to "C" Strake). ABS Grade A mild steel 48" x 66" x 3/8".

336.6Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

Attachment 2

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"B" STRAKE

At this time, discovered three locations that is perforated, and outboard side (seaside) has a doubler plate patch. *Growth for repair expected and these are Dock items.

4. Recommend to crop plating from 12" forward of Frame 22 to 63" aft and from the free edge inboard (to "A" Strake) to 24" outboard. ABS Grade A mild steel 63" x 24" x 1/2". 214.2Lbs.

Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

5. Recommend to crop plating from 12" forward of Frame 28 to 42" aft and from the free edge outboard (to "C" Strake) to the free edge inboard (to "A" Strake). ABS Grade A mild steel 42" x

52" x 1/2". 309.4Lbs. Requires removal of cement for repair. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

"C" STRAKE & "D" STRAKE

At this time, discovered localized section involving the "C" and "D" Strakes with excessive wastage and one isolated pinhole (at this time NPS fixed leak with a temporary patch). *Growth for repair expected and these are Dock items.

6. Recommend cropping each strake plating from 12" forward of Frame 27 to 64" aft and from the free edge outboard (to "E" Strake) to the free edge inboard (to "B" Strake). ABS Grade A mild steel 64" x 102" x 3/8". 693.6Lbs. *Requires sequential release of plate to frames. At this time layout is approximate and tentative growth of 25% once area is accessible. Note: Internals to be renewed in way of shell plate repair.

"F" STRAKE (Sheer)

At this time, discovered one location that is perforated with some patches, outboard side of plate (seaside) in way of the upper guard. *Growth for repair expected and removal of the retainers for the upper guard along with the gunwale on the main deck required for repair access.

Note: Projecting renewals to the retainers (x2), gunwale and bulwarks in way of shell plate renewal.

Method of repair to confirm with owner's, as built fasteners/retainers riveted to deck and shell.

7. Recommend to crop plating ("F‐10") from the 12" forward of frame 67 to 36" aft and from the free edge lap to "F" Strake up to the free edge of plate. ABS Grade A mild steel 36" x 36" x 1/2". 183.6Lbs. Requires the upper timber bump guard to be inspected prior to removal. At this time layout is approximate and tentative growth of 50% once area is accessible.

Scuppers/Deck drains in way of plate renewal to save, move aside/or shop and clean to SSPC‐SP3, inform owner's rep to inspect hull and drain overboard flange (intent to repair as required by owner's rep)

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SHELL PLATING (Port and Starboard)

REMARKS: Allow for 5 tons of the keel strake (P/S)/CVK to renew areas as per owner's rep sketches. To confirm once survey of the hull is completed (Dock Item) Intent of floors and frames to renew in way of plating repair. Removal of obstruction with existing cement, in way of the Keel strake up to "C" strake with clearing an additional 16" fwd and 16" aft of new buttweld (if method confirmed).

Light material summary, SHELL PLATE - PORT SIDE Weight Square

Dimensions (inches) Orig Qty Grade Remark Lbs Feet

1 "A" Strake - Bhd 8 66'' x 54'' x 0.50'' 1 A cement/in FP 504.9 24.8

2 "A" Strake - Bhd 23 87'' x 52'' x 0.50'' 1 A cement/in boiler room 640.9 31.4

3 "A" Strake - Frm 64 50'' x 48'' x 0.50'' 1 A Below Potable Tank 340.0 16.7

4 "B" Strake - Bhd 23 108'' x 52'' x 0.50'' 1 A Shaft Alley 795.6 39.0

5 "E" Strake - Frame 33 88'' x 24'' x 0.500'' 1 A Boiler Room 299.2 14.7

6 "E" Strake - Frame 58 50'' x 36'' x 0.500'' 1 A Engine Room 255.0 12.5

7 "E" Strake - Frame 67 36'' x 36'' x 0.500'' 1 A Engine Room 183.6 9.0

SHELL PLATE - STARBOARD SIDE Weight Square

Dimensions (inches) Orig Qty Grade Remark Lbs Feet

1 "A" Strake - Bhd 8 66'' x 54'' x 0.50'' 1 A cement/in FP 504.9 24.8

2 "A" Strake - Frm 28 42'' x 52'' x 0.50'' 1 A cement/in boiler room 309.4 15.2

3 "B" Strake - Frm 9 48'' x 66'' x 0.375'' 1 A up to "C" strake 336.6 22.0

4 "B" Strake - Bhd 23 63'' x 24'' x 0.50'' 1 A Boiler Room 214.2 10.5

5 "B" Strake - Frm 28 42'' x 52'' x 0.375'' 1 A Boiler Room 232.1 15.2

6 "C" Strake - Frm 28 64'' x 102'' x 0.375'' 1 A renew with "D" 693.6 45.3

7 "E" Strake - Frame 67 36'' x 36'' x 0.500'' 1 A Engine Room 183.6 9.0

Note: Doubler patch condition inboard side has active corrosion. 5,493.6 Lbs 289.9

Repair requires access to the free edge of the keel strake (in cement) Total Total

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"A" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock items. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

1. Recommend to crop the entire "A‐2" strake. ABS Grade A mild steel 14'‐0" x 54" x 1/2".

1,285.2Lbs.

2. Recommend to crop the entire "A‐4" strake. ABS Grade A mild steel 13'‐0" x 54" x 1/2".

1,193.4Lbs.

"B" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock item. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

3. Recommend to crop the entire "B‐2" strake. ABS Grade A mild steel 5'‐6" x 52" x 1/2".

1,486.2Lbs.

4. Recommend to crop the entire "B‐4" strake. ABS Grade A mild steel 14'‐0" x 50" x 1/2".

1,190.0Lbs.

5. Recommend to crop the entire "B‐5" strake. ABS Grade A mild steel 14'‐0" x 50" x 1/2".

1,190.0Lbs.

"C" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock item. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

6. Recommend to crop the entire "C‐2" strake. ABS Grade A mild steel 14'‐0" x 50" x 3/8".

892.5Lbs.

7. Recommend to crop the entire "C‐4" strake. ABS Grade A mild steel 14'‐0" x 50" x 3/8".

892.5Lbs.

"D" STRAKE

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock item. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

8. Recommend to crop the entire "D‐4" strake. ABS Grade A mild steel 14'‐0" x 50" x 3/8".

892.5Lbs.

Page 32 of 47 Structural Rehabiliation Recommendations -

"F" STRAKE (SHEER STRAKE)

At this time, plate sheet size is approximate. Method for renewal pending owner's confirmation. *Dock items. Requires removal of cement for repair. Note: Internals to be renewed in way of shell plate repair.

9. Recommend to crop the entire "F‐10" strake. ABS Grade A mild steel 12'‐8" x 50" x 1/2".

1,115.2Lbs.

See following sketch for details and locations.

Page 33 of 47 Structural Rehabiliation Recommendations -

Page 34 of 47 Structural Rehabiliation Recommendations -

BULKHEADS / FRAMES / FLOORS

Repair/Renewal of bulkhead, frames and floors condition is based on assessment where accessible, of note, other side of bulkheads is ballast/fuel oil tanks and the lower 48" is not accessible(cement), assume highly suspect of excessive wastage. *Repairs written up are a dock items and requires cement in way of structural members to be removed.

NOTE: Taken from Dvorak and Brauer, Bay Shipbuilding, WI.

REPAIR OF OLD RIVETS

"Bobbing" ‐ cold working the point around the lip or edge with a riveting gun and small convex die to draw a seeping rivet tight.

"Frenching" ‐ veeing and wedging the lip of point metal firmly into the countersink with a special frenching tool and then filling in the trench with a small weld bead. This actually draws the rivet tight. (On the Great Lakes, we refer to this as frenching and welding.)

"Ring Welding" ‐ carefully welding a fine bead around a rivet point as temporary counter measure to leakage. Such a weld has a tendency to crack.

The cost of replacing a plate that is riveted is at least 5 times more expensive and more time consuming than one that is completely welded. For this reason, ship owners are always trying to minimize riveting.

BULKHEAD 8 (COLLISION BULKHEAD)

At this time, aft side of the bulkhead plate was surveyed. Lower section ~36" is not accessible due to cement ballast. To complete assessment once the forepeak tank is accessible and fwd side of the bulkhead is surveyed.

1. Tentative at this time for bhd plate "Hold till access to the forepeak tank" at this time to crop lower plating from the keel strake up to the existing rivet lap and from the port shell to the starboard shell. ABS Grade A mild steel 60" x 50" x 5/16". 265.6Lbs. Requires removal of cement for repair.

2. Tentative at this time for bhd boundary "Hold till access to the forepeak tank" at this time to crop

Port and Starboard boundary angle bars lower 36" down to the termination attachment to the

Floor web (fwd and aft side of the bhd double riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 3" x 3" x 5/16" angle x 36" x 4. 72.5Lbs.

SHELL VERTICAL FRAME 9 / FLOOR 9

At this time, Frame 9 lower section ~30" of the port and starboard is not accessible due to cement ballast. Lower section that was visible for inspection has extensive wastage above the cement line.

Floor 9 has extensive wastage.

3. Tentative at this time – Frame 9, Port and Starboard side to crop lower 30" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 5" x

3" x 3/8" angle x 30" x 2. 48.7Lbs.

4. Tentative at this time – Floor 9, to crop the web and flange in its entirety. ABS Grade A mild steel

Web 42"x 20" x 3/8" and Flange 3‐1/2" x 3/8" x 40" flatbar. 104.13Lbs.

Page 35 of 47 Structural Rehabiliation Recommendations -

Bulkhead / Frame / Floor details shown in sketch following the write-up.

FRAMES / FLOORS

SHELL VERTICAL FRAME 10 / FLOOR 10

At this time, Frame 10 lower section ~30" of the port and starboard is not accessible due to cement ballast. Lower section that was visible for inspection has extensive wastage above the cement line.

Floor 10 has extensive wastage.

5. Tentative at this time – Frame 10, Port and Starboard side to crop lower 30" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 30" x 2. 48.7Lbs.

6. Tentative at this time – Floor 10, to crop the web and flange in its entirety. ABS Grade A mild steel Web 44"x 20" x 3/8" and Flange 3‐1/2" x 3/8" x 42" flatbar. 109.12Lbs.

SHELL VERTICAL FRAME 11 / FLOOR 11

At this time, Frame 11 lower section ~30" of the port and starboard is not accessible due to cement ballast. Lower section that was visible for inspection has extensive wastage above the cement line.

Floor 11 has extensive wastage.

7. Tentative at this time – Frame 11, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 36" x 2. 58.4Lbs.

8. Tentative at this time – Floor 11, to crop the web and flange in its entirety. ABS Grade A mild steel Web 46"x 20" x 3/8" and Flange 3‐1/2" x 3/8" x 44" flatbar. 114.11Lbs.

SHELL VERTICAL FRAME 12 / FLOOR 12

At this time, Frame 12 lower section ~30" of the port and starboard is not accessible due to cement ballast. Lower section that was visible for inspection has extensive wastage above the cement line.

Floor 12 has extensive wastage.

9. Tentative at this time – Frame 12, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 36" x 2. 58.4Lbs.

10. Tentative at this time – Floor 12, to crop the web and flange in its entirety. ABS Grade A mild steel Web 46"x 20" x 3/8" and Flange 3‐1/2" x 3/8" x 44" flatbar. 114.11Lbs.

Page 36 of 47 Structural Rehabiliation Recommendations -

FLOOR 13

Floor 13 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 13 web is perforated.

11. Tentative at this time – Floor 13, to crop the web and flange in its entirety. ABS Grade A mild steel Web 48"x 21" x 3/8" and Flange 3‐1/2" x 3/8" x 46" flatbar. 124.21Lbs.

Shell vertical frame angle bar ‐ renewed flange only numerous Floor, web perforated above the cement line.

riveted web remains.

Photos below shows vertical frames repaired/renewed and floors with 100% wastage.

Shell vertical frames repaired/renewed. Floors with web perforated above the cement line.

Existing Frame Angle bar

Renewed Flat bar

Attachment 2

Page 37 of 47 Structural Rehabiliation Recommendations -

FLOOR 14

Floor 14 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 14 web is perforated.

12. Tentative at this time – Floor 14, to crop the web and flange in its entirety. ABS Grade A mild steel Web 50"x 21" x 3/8" and Flange 3‐1/2" x 3/8" x 48" flatbar. 129.41Lbs.

FLOOR 15

Floor 15 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 15 web is perforated.

13. Tentative at this time – Floor 15, to crop the web and flange in its entirety. ABS Grade A mild steel Web 56"x 22" x 3/8" and Flange 3‐1/2" x 3/8" x 54" flatbar. 150.98Lbs.

FLOOR 16

Floor 16 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 16 web is perforated.

14. Tentative at this time – Floor 16, to crop the web and flange in its entirety. ABS Grade A mild steel Web 60"x 22" x 3/8" and Flange 3‐1/2" x 3/8" x 58" flatbar. 161.82Lbs.

FLOOR 17

Floor 17 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 17 web is perforated.

15. Tentative at this time – Floor 17, to crop the web and flange in its entirety. ABS Grade A mild steel Web 64"x 22" x 3/8" and Flange 3‐1/2" x 3/8" x 62" flatbar. 172.66Lbs.

FLOOR 18

Floor 18 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 18 web is perforated.

16. Tentative at this time – Floor 18, to crop the web and flange in its entirety. ABS Grade A mild steel Web 70"x 23" x 3/8" and Flange 3‐1/2" x 3/8" x 68" flatbar. 196.35Lbs.

Page 38 of 47 Structural Rehabiliation Recommendations -

FLOOR 19

Floor 19 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 19 web is perforated.

17. Tentative at this time – Floor 19, to crop the web and flange in its entirety. ABS Grade A mild steel Web 74"x 26" x 3/8" and Flange 3‐1/2" x 3/8" x 72" flatbar. 231.2Lbs.

FLOOR 20

Floor 20 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 20 web is perforated.

18. Tentative at this time – Floor 20, to crop the web and flange in its entirety. ABS Grade A mild steel Web 76"x 26" x 3/8" and Flange 3‐1/2" x 3/8" x 74" flatbar. 237.47Lbs.

FLOOR 21

Floor 21 port and starboard side, section above the cement line partial renewal of the riveted angle bar

(riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 21 web is perforated.

19. Tentative at this time – Floor 21, to crop the web and flange in its entirety. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3‐1/2" x 3/8" x 76" flatbar. 260.31Lbs.

FLOOR 22

Floor Frame 22 port and starboard side, section above the cement line partial renewal of the riveted angle bar (riveted web remains and flange was renewed with 3" x 3/8" flatbar). Floor 22 web is perforated.

20. Tentative at this time – Floor 22, to crop the web and flange in its entirety. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3‐1/2" x 3/8" x 76" flatbar. 260.31Lbs.

BULKHEAD 23

21. Bulkhead 23 plate boundary angle bars has extensive wastage in way of the riveted web to the bottom shell. Tentative at this time for bhd boundary at this time to crop Port and Starboard boundary angle bars lower 60" to the termination attachment to the Floor web (fwd and aft side of the bhd double riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 3" x 3" x 5/16" angle x 60" x 4. 120.8Lbs.

Page 39 of 47 Structural Rehabiliation Recommendations -

SHELL VERTICAL FRAME 24 / FLOOR 24

At this time, Frame 24 lower section ~36" of the port and starboard. Lower section that was visible for inspection has extensive wastage. Floor 24 has extensive wastage.

22. Tentative at this time – Frame 24, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 36" x 2. 58.4Lbs.

23. Tentative at this time – Floor 24, to crop the web and flange in its entirety. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3‐1/2" x 3/8" x 76" flatbar. 260.31Lbs.

DEEP FRAME 25 / FLOOR 25

Deep frame 25, lower section that was visible for inspection has extensive wastage above the cement.

24. Tentative at this time – Deep frame 25 Web, Port and Starboard side to crop lower 48" at the attachment to the boiler foundation face plate along with the riveted angle bar attachment to the shell. ABS Grade A mild steel Web 48"x 14" x 3/8" and Face plate (built tee) 8" x 3/8" flatbar x 50". 113.91Lbs.

SHELL VERTICAL FRAME 26 / FLOOR 26

At this time, Frame 26 lower section ~48" of the port and starboard. Lower section that was visible for inspection has extensive wastage. Floor 26 has extensive wastage.

25. Tentative at this time – Frame 26, Port and Starboard side to crop lower 48" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 48" x 2. 77.9Lbs.

26. Tentative at this time – Floor 26, to crop the web only, face plate previously renewed to save.

ABS Grade A mild steel Web 86"x 30" x 3/8". 274.1Lbs.

TYPICAL CONDITION OF FLOORS BELOW THE BOILER

Page 40 of 47 Structural Rehabiliation Recommendations -

SHELL VERTICAL FRAME 27 / FLOOR 27

At this time, Frame 27 lower section ~60" of the port and starboard. Lower section that was visible for inspection has extensive wastage. Floor 27 has extensive wastage.

27. Tentative at this time – Frame 27, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs.

28. Tentative at this time – Floor 27, to crop the web and flange in its entirety. ABS Grade A mild steel Web 86"x 30" x 3/8" and Flange 3‐1/2" x 3/8" x 88" flatbar. 306.85Lbs.

SHELL VERTICAL FRAME 28 / FLOOR 28

At this time, Frame 28 lower section ~60" of the port and starboard. Lower section that was visible for inspection has extensive wastage. Floor 28 has extensive wastage.

29. Tentative at this time – Frame 28, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs.

30. Tentative at this time – Floor 28, to crop the web and flange in its entirety. ABS Grade A mild steel Web 86"x 28" x 3/8" and Flange 3‐1/2" x 3/8" x 88" flatbar. 306.85Lbs.

SHELL VERTICAL FRAME 29 / FLOOR 29

At this time, Frame 29 lower section ~60" of the port and starboard. Lower section that was visible for inspection has extensive wastage. Floor 29 has extensive wastage.

31. Tentative at this time – Frame 29, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel

5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs.

32. Tentative at this time – Floor 29, to crop the web only, face plate to save and re‐install. ABS

Grade A mild steel Web 86"x 28" x 3/8". 274.1Lbs.

Shell vertical frame typical condition in way of stringer. Floor face plate below the boiler

Page 41 of 47 Structural Rehabiliation Recommendations -

DEEP FRAME 30

Boiler foundation at Deep frame 30, Face plate to the deep frame has extensive wastage port side.

33. Tentative at this time – Deep frame 30 Web, Port and Starboard side to crop lower 48" at the attachment to the boiler foundation face plate along with the riveted angle bar attachment to the shell. ABS Grade A mild steel foundation face plate port side 8"x 1/2" x 36". 40.81Lbs.

Boiler Foundation face plate on the port side with a doubler temporary repair.

BULKHEAD 51

34. Bulkhead 51 lower horizontal stiffener is perforated on the port side, starboard side has been previously renewed. Tentative at this time to crop the horizontal stiffener on the port side.

Partial crop and renew the lower horizontal stiffener from the port outboard free edge to 48" inboard. ABS Grade A mild steel MC 6" x 12# x 48". 48.0Lbs.

BULKHEAD 70

35. Bulkhead 70 upper horizontal stiffener has excessive wastage with isolated areas that is perforated. Tentative at this time to crop the horizontal stiffener in its entirety. Crop and renew the upper horizontal stiffener from the attachment to the port shell frame to the starboard shell frame. ABS Grade A mild steel C 5" x # x 17'‐6". 157.5Lbs.

36. Bulkhead 70 plating an isolated rivet that has a slight leak. Tentative at this time to ring weld the rivet and clad weld adjacent rivets on the starboard side in way of the 1st vertical stiffener and below the uppermost strake (marked by owner's rep).

Recommendations are based on IACS guidelines. At this time repairs are tentative until owner's confirm method for repairs.

Structural members with extensive loss of material/thickness will lose load integrity for the section modulus, in this case, tolerance for diminution can be adjusted if the vessel is not in service, tolerance/criteria used for the hull is diminution of > 30% from original thickness. Doublers or patches are a temporary fix as there is no continuity for the true structure and load integrity is flawed.

In addition, material wastage is prone to propagation if there is coating failure especially where there is active moisture, progression of corrosion inclined to be accelerated.

Page 42 of 47 Structural Rehabiliation Recommendations -

BULKHEAD / FRAMES / FLOORS

MATERIAL SUMMARY

ITEM Dimensions (inches) Orig Qty Grade Remark Lbs Feet

1 Bulkhead 8 60'' x 50'' x 0.3125'' 1 A cement/in FP 265.6 20.8

2 Bhd 8 boundary 36'' x 3" x 3" x 5/16" 4 A stiffeners (x4) 72.5 6.0

3 Frame 9 30'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 48.7 9.7

4 Floor 9 web 42'' x 20'' x 0.375'' 1 A plate 89.3 5.8

Floor 9 Flange 40'' x 3.50'' x 0.375'' 1 A flatbar 14.9 1.0

5 Frame 10 30'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 48.7 9.7

6 Floor 10 web 44'' x 20'' x 0.375'' 1 A plate 93.5 6.1

Floor 10 Flange 42'' x 3.50'' x 0.375'' 1 A flatbar 15.6 1.0

7 Frame 11 36'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 58.4 9.7

8 Floor 11 web 46'' x 20'' x 0.375'' 1 A plate 97.8 6.4

Floor 11 Flange 44'' x 3.50'' x 0.375'' 1 A flatbar 16.4 1.1

9 Frame 12 36'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 58.4 9.7

10 Floor 12 web 46'' x 20'' x 0.375'' 1 A plate 97.8 6.4

Floor 12 Flange 44'' x 3.50'' x 0.375'' 1 A flatbar 16.4 1.1

11 Floor 13 web 48'' x 21'' x 0.375'' 1 A plate 107.1 7.0

Floor 13 Flange 46'' x 3.50'' x 0.375'' 1 A flatbar 17.1 1.1

12 Floor 14 web 50'' x 21'' x 0.375'' 1 A plate 111.6 7.3

Floor 14 Flange 48'' x 3.50'' x 0.375'' 1 A flatbar 17.9 1.2

13 Floor 15 web 56'' x 22'' x 0.375'' 1 A plate 130.9 8.6

Floor 15 Flange 54'' x 3.50'' x 0.375'' 1 A flatbar 20.1 1.3

14 Floor 16 web 60'' x 22'' x 0.375'' 1 A plate 140.3 9.2

Floor 16 Flange 58'' x 3.50'' x 0.375'' 1 A flatbar 21.6 1.4

15 Floor 17 web 64'' x 22'' x 0.375'' 1 A plate 149.6 9.8

Floor 17 Flange 62'' x 3.50'' x 0.375'' 1 A flatbar 23.1 1.5

16 Floor 18 web 70'' x 23'' x 0.375'' 1 A plate 171.1 11.2

Floor 18 Flange 68'' x 3.50'' x 0.375'' 1 A flatbar 25.3 1.7

17 Floor 19 web 74'' x 26'' x 0.375'' 1 A plate 204.4 13.4

Floor 19 Flange 72'' x 3.50'' x 0.375'' 1 A flatbar 26.8 1.8

18 Floor 20 web 76'' x 26'' x 0.375'' 1 A plate 210.0 13.7

Floor 20 Flange 74'' x 3.50'' x 0.375'' 1 A flatbar 27.5 1.8

19 Floor 21 web 78'' x 28'' x 0.375'' 1 A plate 232.1 15.2

Floor 21 Flange 76'' x 3.50'' x 0.375'' 1 A flatbar 28.3 1.8

20 Floor 22 web 78'' x 28'' x 0.375'' 1 A plate 232.1 15.2

Floor 22 Flange 76'' x 3.50'' x 0.375'' 1 A flatbar 28.3 1.8

21 Bhd 23 boundary 60'' x 3" x 3" x 5/16" 4 A stiffeners (x4) 120.8 6.0

22 Frame 24 36'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 58.4 9.7

23 Floor 24 web 78'' x 28'' x 0.375'' 1 A plate 232.1 15.2

Attachment 2

Page 43 of 47 Structural Rehabiliation Recommendations -

BULKHEAD / FRAMES / FLOORS

MATERIAL SUMMARY (Continued)

ITEM Dimensions (inches) Orig Qty Grade Remark Lbs Feet

Floor 24 Flange 76'' x 3.50'' x 0.375'' 1 A flatbar 28.3 1.8

24 Deep Frame 25 web 48'' x 14'' x 0.375'' 1 A plate 71.4 4.7

Deep Frame 25 Fc plt 50'' x 8.00'' x 0.375'' 1 A flatbar 42.5 2.8

25 Frame 26 48'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 77.9 9.7

26 Floor 26 web 86'' x 30'' x 0.375'' 1 A plate 274.1 17.9

27 Frame 27 60'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 97.4 9.7

28 Floor 27 web 86'' x 30'' x 0.375'' 1 A plate 274.1 17.9

Floor 27 Flange 88'' x 3.50'' x 0.375'' 1 A flatbar 32.7 2.1

29 Frame 28 60'' x 5" x 3" x 3/8" 2 A stiffeners (x2) 97.4 9.7

28 Floor 28 web 86'' x 30'' x 0.375'' 1 A plate 274.1 17.9

Floor 28 Flange 88'' x 3.50'' x 0.375'' 1 A flatbar 32.7 2.1

31 Frame 29 60'' x 5" x 3" x…