Water Weight PWS.pdf

Performance Work Statement Albeni Falls Dam, Oldtown ID

Water Weight Rental for Crane Load Testing

1. General Information GENERAL INFORMATION: The U.S. Army Corps of Engineers requires the rental of water weight and water pumping equipment for crane load testing at Albeni Falls Dam. This includes all necessary equipment for safe and accurate testing, including delivery and pickup to and from Albeni Falls Dam. The rental period is for 5 days.

TEST LOAD: Total Test Load Required: 100 US tons (T). 50T will be applied to each of the 2 crane load blocks for a total of 100T load.

SPECIFICATIONS: Provide water bags, water pumps, and other equipment (e.g.

valves, hoses, fittings, flowmeters, etc.) that are free of invasive species and pollutants and are uncontaminated such that water pumped from the river into the bags for the load test can then be discharged back into the river. The Water Weight Rental equipment shall meet or exceed the following minimum salient characteristics:

2. Required Equipment

Water Bags:

Quantity: 4 bags Capacity: 35T per bag

Accessories: All necessary filling/dumping valves, straps, and connection hardware.

Safety Standard: LEEA 051, with a minimum 6:1 design safety factor.

Submit for approval Non-Contaminated Equipment Certifications. Provide certification of equipment cleanliness stating water bags and accessories are free of harmful contaminants and invasive species such as quagga mussels, describing the method by which the bags and equipment were cleaned, the date they were cleaned, and exactly where the equipment has been used, if applicable, since the cleaning date. Bag cleaning methods must be approved by the bag/water weight manufacturer and by the Government. Examples of acceptable cleaning methods that have been approved in the past are:

Cleaning by heat, holding all equipment and all surfaces of bags above a temperature of 140 degrees F for a minimum of 1 minute, as verified by infrared temperature reading.

DRAFT

Cleaning by freezing, holding all equipment and all surfaces of bags below a temperature of 14 degrees F for a minimum of 4 hours, as verified by infrared temperature reading.

2.1. Water Pumps:

Quantity: Two (2) pumps (redundant pumps are required due to the critical timing and restricted duration of the test)

Required Flow Rate: Approximately 200 GPM pump with a second, fully functional 200 GPM pump serving as standby in case the first pump fails.

Pump Electrical:

o Available power is a single, 480-Volt, 3-Phase, 150-Amp circuit.

o Interface: Power is supplied by a Meltric DSN150 receptacle.

o The contractor shall provide all pump controls, additional protective device (if needed), Meltric DSN150-compatible plug, and 100 feet of SO/SE-type power cable.

The pump shall be controlled at/near the Meltric DSN150 receptacle location, not at the pump location. Pump location is roughly 50-feet below receptacle location and not easily accessed once pump is in place.

o Pump Operational Conditions:

Vertical distance from the water surface to the pump elevation (static suction lift) can vary from 3-feet to as much as 15-feet.

The vertical distance from the pump elevation to the top of the water bags (static discharge head) is approximately 70-feet.

The horizontal run from the pumps to crane is approximately 120-feet.

The contractor shall supply all piping, connectors, and fittings necessary to connect to the Multi-Manifold (see below).

Submit for approval Non-Contaminated Equipment Certifications. The cleaning and decontamination requirements for the pumps and related equipment are the same as for the water bags.

3. Shackles:

Quantity: 2 Capacity: 85T WLL or greater per shackle

4. Master Links:

Quantity: 2 Purpose: Connect shackles to Pins on crane load blocks. The load block pin is 5.25 inches in diameter, with 4.25” length between cheek plates. A drawing of the load block is provided in image A. Master links must fit over the load block pin. Load blocks do not have hooks.

If the contractor can verify shackles will fit on crane load pins without master links, it is optional to not supply master links.

Capacity: 85T WLL or greater.

5. Flow Meters with Current Calibration Certificates:

Quantity: 2

Type: Certified Flow meter (used as a measuring device during filling/dumping).

6. Multi-Manifold:

Quantity: 1 Purpose: For efficient and controlled filling of the water bags.

Connection type: 2-1/2 inch male NST for use with female NST fittings on fire hose.

Hoses: Filling and dump hoses for connection from water bags to multi-manifold, sufficient length for safe operation.

7. Load Cells with Current Calibration Certificates:

Quantity: 2

Type: Calibrated load cells of sufficient capacity for 50T load test verification.

Accessories: All shackles or connecting devices to be placed in line between the water weights and the crane load blocks. All connecting devices must be rated 85T WLL or greater.

3. Required Services

All equipment must be in good working order and certified for safe operation.

Rental equipment must meet all relevant safety standards and regulations, including but not limited to LEEA 051.

The vendor is responsible for ensuring that all equipment is compatible as a working system and suitable for the intended crane load testing application, including but not limited to load rating of provided water weights and appurtenances.

Contractor will provide written instructions, drawings, and diagrams on the proper and safe use of the water weight equipment.

4. Required Documentation

SUBMITTALS:

Contractor must submit descriptive materials (such as brochures, illustrations, drawings, and data sheets) to demonstrate compliance with required specifications.

Submittals shall include manufacturer’s catalog cut sheets, specification sheets, calibration data, and load ratings for all relevant components.

ACCEPTANCE OF MATERIALS:

Materials will be inspected at the delivery point before acceptance.

Contractor must maintain product condition until the point of acceptance.

Only equipment in good working condition will be accepted, no damaged or faulty equipment.

5. Warranty

Contractor warrants that the equipment will be in good working order and free from defects at the time of delivery.

Contractor must thoroughly inspect and validate the entire system before delivery.

6. Hours of Operation

The Contractor is required to work within the hours of 0630 – 1700, Monday through Thursday, except Federal holidays, or when the Government facility is closed due to local or national emergencies, administrative closings, or similar Government directed facility closings. Deliveries shall be scheduled between 0730 and 1600, Monday through Thursday.

7. Transport/Delivery Schedule

TRANSPORT AND DELIVERY SCHEDULE:

The successful bidder shall deliver all components to Albeni Falls Dam on a weekday, with the date to be determined by the Government after contract award, no earlier than April 7th, 2026, and no later than May 18th, 2026.

The rental period is 5 calendar days, starting on the delivery date, and the contractor will pick up all components 5 days after delivery.

8. DELIVERY LOCATION:

US Army Corps of Engineers ATTN: Jeff Smutny Albeni Falls Dam

Image A, Drawing of Load Block (Following Page)