Rebuild Bahía de Guayanilla Entrance Range Rear Light - USCG

Solicitation description

SOURCES SOUGHT: THIS IS ONLY A SURVEY OF THE MARKET TO DETERMINE IF THERE ARE POTENTIAL CONTRACTORS THAT CAN SATISFY THE FOLLOWING REQUIREMENT: PN 13832866 – REBUILD BAHIA DE GUAYANILLA ENTRANCE RANGE REAR LIGHT AT UNITED STATES COAST GUARD AIDS TO NAVIGATION (ANT) PUERTO RICO. The base bid, on-site work consists of furnishing all labor, tools, equipment, materials, supervision, and transportation necessary for, and incidental to, the demolition/removal and new construction of the aid-to-navigation (ATON) structure; the Bahia de Guayanilla Entrance Range Rear Light (RRL), Light List Number(LLNR) 32075 in accordance with project drawings. The new structure will consist of a metal skeleton tower design mounted and bolted to a metal platform supported on steel piles. The following is a general summary of the work: 1. Remove the existing metal tower and steel piles that are embedded in the mudline, including any debris still attached to or surrounding the structure. The piles shall be cut at the mud line elevation (not pulled out). Dispose in accordance with specifications and state and federal laws. 2. Survey and mark the location of the existing structure on the ocean bottom with a timber pile marker for placement of the new structure. 3. Construct the new James River Ice Resistant Structure (JRIRS) platform foundations supported on steel piles for each structure as per project drawings. 4. The new JRIRS structure will consist of a four-pile steel dolphin and an eight-foot square steel platform with fiberglass grating that will serve as the foundation for a steel skeleton tower. An 18-inch diameter by ½-inch thick "king pile" will be driven on the surveyed position, a structural steel JRIRS sleeve template as shown in the drawings will be placed over the “king pile” and three 12-inch by ½- inch diameter batter piles will be driven through the sleeve template. All steel piles are to be driven to refusal or a minimum of 45 tons whichever is achieved first. The steel platform and fiberglass grating will be mounted on the pile dolphin foundation. The design height for the platform is 10 feet above the Mean Lower Low Water (MLLW) elevation of 0.00’feet based on The North American Vertical Datum of 1988 (NAVD 88). For purposes of bid, the embedment depth of the steel piles in the mud line shall be assumed to be 50 feet. The water depth at the area of work fluctuates during the year from approximately 10 feet to 15 feet. 5. The skeleton tower mounted on the JRIRS platform will have a height of 10 feet above the steel platform with a focal signal height of 11 feet above the steel platform. The tower will be used to support solar panels, day boards, batteries, light signals, and servicing personnel as necessary. Solar panels, day boards, batteries and light signals will be provided and installed by the U.S. Coast Guard (USCG) Aids to Navigation Team (ANT) Puerto Rico personnel. The skeleton metal tower shall be fabricated off site as per details on the...

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