Condensed Specification Summary.pdf

CONDENSED SPECIFICATION DOCUMENT

SPECIFICATION FOR CUSTOM SHALLOW-WATER BOAT: FORT RANDALL PROJECT

1. SCOPE:

Vendor shall provide and deliver to the Fort Randall Project a custom boat and trailer that will allow the Corps to navigate the shallow waters of the middle Missouri River. Vendor is responsible for all labor, tools, transportation, material, equipment, and supervision necessary to construct the boat and trailer. Vendor must be registered with SAM (www.sam.gov) and have a DUNS number.

All fabrication shall conform to the technical specifications detailed below. These written specifications are supplemented by the drawings and example images provided in Appendix A, which illustrate the intended layout, geometry, and final appearance of key custom components.

All fabrication shall conform to the technical specifications detailed below. This solicitation package includes this Unabridged Detailed Specification, a Condensed Specification summary document, and Appendix A: Visual Reference Drawings & Examples, which together illustrate the intended layout, geometry, fabrication methods, and final appearance of key custom components.

1.1 Order of Precedence:

In the event of a discrepancy or conflict between the documents provided, the following order of precedence shall strictly apply:

1. This Unabridged Detailed Specification

2. The Condensed Specification Summary

3. Appendix A: Visual Reference Drawings & Examples

The drawings/pictures and the Condensed Specification are provided to clarify design intent and provide a high-level project summary. However, the exact dimensions, materials, and fabrication methods mandated in this Detailed Specification shall govern.

2. TECHNICAL SPECIFICATIONS (SIMPLIFIED SPEC)

Note to Bidders: This section is a streamlined summary of the vessel's requirements.

Bidders MUST reference the complete, unabridged specification document for full fabrication methods, precise geometry, and structural integration rules prior to construction.

2.1 Vessel Overview & Core Structure

Dimensions: 24' LOA (excluding pods), 72" bottom, 96" beam, 27" sides/transom.

Modified V-bow to flat bottom.

Capacity: Rated and configured with seating to safely accommodate 6-8 occupants.

Materials:

o Bottom/Tunnel/Transom: 0.190" (3/16") 5086-H116 Aluminum. (Transom requires 1/4" doubler plate).

o Sides/Console/Pods/Bench Seating: 0.125" (1/8") 5052-H32 Aluminum.

o Floors & Raised Decks: 0.125" (1/8") 5052-H32 Aluminum Diamond Plate.

Structural Grid: Four continuous 3"x3"x0.250" T-bar longitudinal stringers.

Transverse intercostal ribs on 12" centers (1/4" angle or 3/16" C-channel). Four 1/4" transom knee braces landing directly on stringers.

Advanced Tunnel: 72" length, tapering from 28" (front) to 22" (rear), max depth 8".

Features a 5-sided interior, extended 3/16" exit shroud, and a manual hole-shot ventilation system with a 2-inch plumbed vent port and exterior aerodynamic clamshell scoop.

2.2 Propulsion & Rigging

Engine & Shaft Length: 150 HP EFI 4-stroke (Mercury/Yamaha) rigged turn-key with low-water pickup. Final shaft length (20" vs 25") is left to builder discretion to engineer the best balance of shallow-water clearance, deep-water propeller bite (especially regarding following wakes or surge during rapid deceleration), and holeshot acceleration relative to the 8" tunnel and 7.5" jack plate lift.

Jack Plate: Bob's Machine Shop Action Series high-speed electric hydraulic (or exact equivalent). Must achieve full lift in 6 seconds or less. Requires exactly 6-inch setback and a minimum of 7.5" vertical travel/rise.

Drive/Steering: Full hydraulic tilt-steering. SS 4-blade low-pitch prop. Heavy-duty tunnel compression plate.

Flotation Pods: Two stepped transom pods (16-18" L x 24" W). Inner walls must be vertically plumb, creating a 24" wide center motor well. Includes integrated top steps and grab handles.

2.3 Deck & Interior Layout (Bow to Stern)

Forward Bow & Casting Deck: 84" raised casting deck (18" above floor) with a massive central storage compartment (dual forward-hinged doors). Perimeter protected by a permanently welded 36" tall safety railing with a front walk-through gap.

Bow Transition Step & Forward Gunwale Seating: Inverted-L "rod locker" benches run along the forward gunwales. To preserve exactly 22 inches of single-passenger cushion length on these benches, a structural aluminum step (9" H x 14.5" D) shall be fabricated spanning the main floor between them to safely bridge the rise to the forward deck. Step features an EVA foam top tread and limber holes.

Builder option to fabricate this step as an enclosed storage box (with hatch) or an open, elevated bridge step.

Main Deck: Low central floor (1/8" Diamond Plate) spanning the cockpit.

Console Pod & Helm: Elevated 12" H command pod. Low-profile, notched center console (24"x18") with electronics brow, two drained cup holders, split footrest (accommodating floor-mounted jack plate switch), and tall wing walls. Captain's chair/leaning post with flip-up bolster. Helm controls must include:

o 13.5-inch stainless steering wheel with integrated spinner knob on an adjustable tilt-helm.

o Starboard surface mounted throttle control binnacle (approx. 39-41" height).

o Lower dash/side-wall port side mounted handle for the 2-inch tunnel ventilation ball valve.

o Split gull-wing footrest system housing a floor-mounted jack plate foot switch.

Console Seating: Forward-facing bench seat with dry storage directly in front of the console.

Mid-Ship Crossover & Centerline Spine: An 18" long crossover gap allows for port/starboard transit, leading to a 17.25" H x 30" W raised centerline spine that houses the dual-battery locker. An additional forward-facing bench seat is mounted on the forward tip of this spine (overlooking the crossover gap).

Aft Gunwale Lockers/Seating: Modular, cantilevered aft bench boxes (trapezoidal) running along the port and starboard aft gunwales. All seating surfaces to be cushioned.

Aft Splashwell & Decks: Multi-level, self-bailing stern. Raised 17.25" H corner service decks with flush hatches for bilge access, stepping down into a 36"x20" deep central motor well.

Paint & Surface Finishes: The vessel is not to be delivered as bare aluminum. All interior walking surfaces (decks, floors, steps) must be coated with a light-colored, abrasive spray-in non-skid liner. All other interior aluminum surfaces (hull sides, console, bulkheads) must be painted with a durable, light-colored marine-grade paint (matte or semi-gloss) to reduce glare and heat absorption.

2.4 Systems & Hardware

Electrical: Mid-ship dual AGM batteries (min 1000 MCA) housed in 17.25" centerline spine, wired with min 1/0 AWG cable. NMEA 2000 network backbone installed. Master shutoƯ switch.

Fuel: Min 40-gallon tank isolated beneath the elevated command pod.

Pumps & Drains: Dual 2000 GPH bilge pumps with 24" service loops. Two heavy-duty threaded garboard drain plugs.

Instrumentation & Electronics: The console shall be equipped with a marine-grade waterproof 12V / USB combination charging port and the following gauges:

Tachometer, stand-alone Water Pressure Gauge, Fuel Gauge, Trim Gauge, Jack Plate Height Indicator Gauge, Hour Meter, and a Voltmeter. A digital fuel flow sensor shall be installed in-line and connected to the NMEA 2000 network.

Safety & Hardware:

o All required USCG safety equipment.

o Placard installed on vessel displaying max person/weight capacity.

o Minimum six (6) docking cleats.

o Two bow eyes (one for winch strap, one for safety chain).

o Interior hull-mounted USCG approved Fire extinguisher (1A:10BC).

o Interior hull-mounted life ring.

o Built-in horn, standard navigation lights, emergency shutoƯ lanyard, and spare boat plugs.

o 3-zone welded 1.5" Aluminum pipe grab rail system: (1) Forward gunwale rails (running from bow to helm), (2) A mid-ship 36" clear boarding gate adjacent to the helm, with rails then continuing aft to the stern, and (3) Vertical D-loop grab handles on the console sides.

2.5 Trailer

Type: Tandem axle galvanized steel trailer (5000-5500 lbs. each) with electric-over-hydraulic brakes on one axle and 15-inch wheels. Meets all DOT federal safety regulations.

Support & Suspension: Leaf spring system. Rollers on the front two-thirds, bunks on the rear third.

Hitch: A 2-inch ball is the preferred size.

Features: Submersible LED lights, guide rails, winch/strap rear tie-downs, jack, matching spare rim/tire with mount, and greaseable bearing hubs.

Step Fenders: Heavy-duty fenders must include side steps (minimum 12 inches in length) on both the front and rear of the fender to assist in getting in and out of the boat while on the trailer.

3. MISCELLANEOUS:

Bill of sale and title must be furnished upon receipt of vessel

The boat and trailer shall be furnished with one (1) complete set of operation and maintenance manuals and any other pertinent literature.

Vessel must be float tested and in turn-key condition upon delivery.

Vendor must be authorized by the manufacturer to sell the brand they quote.

Boat will meet all U.S. Coast Guard requirements, NMMA certification standards, and marked with appropriate signage.

Photos of ongoing construction shall be submitted to the contracting oƯicer’s representative throughout the building process.

Warranty: Product warranty for a period of twelve (12) months from date of delivery of the products. A description of the warranty shall be included with the quote.

4. VENDOR VALUE ENGINEERING & ALTERNATIVE PROPOSALS:

Bidders are required to submit a primary bid based on the exact materials, dimensions, and fabrication methods detailed in both this Condensed Specification and the unabridged Detailed Specification document, using both as frames of reference. In addition to this baseline bid, the Government recognizes the specialized expertise of custom marine fabricators. Bidders are highly encouraged to submit separate, secondary bids for any value-engineered alternatives, comparable structural designs (such as variations in the intercostal grid, longitudinal stringer profiles, or transverse rib spacing), or alternative marine-grade material selections that meet or exceed the performance, durability, and shallow-water capabilities described in these specifications. Any proposed alternative design must be clearly identified as a separate line item, accompanied by a detailed engineering rationale explaining how the alternative achieves equal or superior hydrodynamic performance, structural rigidity, and weight distribution for the specified 150 HP engine and 6-inch setback configuration.

5. OPTION:

Bidders are requested to submit a separate line-item charge for delivery of the boat, motor, and trailer to the physical address at:

U.S. Army Corps of Engineers Maintenance Facility Fort Randall Project 113 Randall Creek Road Pickstown, SD 57367

6. AWARD: Award to the successful bidder shall be based on “Best Value” rather than low bid per FAR regulation “512.212-2 EVALUATION - - COMMERCIAL ITEMS (JAN 1999)”. The bids will be based on the following factors:

a. Design and construction

b. Warranty

c. Past performance

d. Price

e. Delivery time

f. Items above standard options

7. Payment: Payment for boat will be within 30 days following delivery and acceptance by the Government and receipt of a proper invoice.

8. Delivery Date: Delivery of the boat and trailer shall be no later than October 30th of 2026.