AWARD
Y -- Design/Bid/Build Construct DD#2 Caisson and Sill Repair; PortsmouthNaval Shipyard, Kittery, Maine
- Notice Date
- 10/22/2009
- Notice Type
- Award Notice
- NAICS
- 236220
— Commercial and Institutional Building Construction
- Contracting Office
- N40085 NAVFAC MID-ATLANTIC Naval Facilities Engineering Command,Mid-Atlantic Code AQ, 9742 Maryland Avenue Norfolk, VA
- ZIP Code
- 00000
- Solicitation Number
- N4008509R7048
- Response Due
- 8/5/2009
- Archive Date
- 11/6/2009
- Point of Contact
- Judy Biboum (757) 444-0684Laura Johnson (757) 444-0469
- E-Mail Address
-
judy.biboum@navy.mil
(judy.biboum@navy.mil)
- Small Business Set-Aside
- N/A
- Award Number
- N4008510C9401
- Award Date
- 10/22/2009
- Awardee
- Cianbro Corporation (DUNS 006854210)One Cianbro SquarePittsfield, ME 04967-1241
- Award Amount
- $19,528,000
- Line Number
- 0001
- Description
- Reconstruct Dry Dock #2 Middle & Outer Sill Structures: The reconstructedsill structure includes construction of a temporary cofferdam to allowdemolition and reconstruction of the sill structures; the addition of rockanchors and dowels to the existing sill and wing walls in order to stabilizethem in the dewatered condition; phased demolition of existing granite masonryblocks and concrete bedding; phased demolition of the existing sill, seats andpartial demolition of the apron; repairs to the existing sill structuresincluding caisson sill armoring; and construction of a reinforced concrete sillstructure with two seats, each to be capable of superflood operations, anchoredto the bedrock with rock anchors. Dewatering must be performed in accordance with State of Maine dischargepermit requirements. New Caisson Gate: the existing rectangular type caisson serving drydock #2 willbe replaced by a similar type but deeper caisson designed to fit thereconstructed seat structures. The floating steel caisson shall beapproximately 105 feet wide, 40 feet high and shall have a beam of 15 feet. Itshall include side keels/stems, catwalks in the ballast tanks for inspection andmeasurement and double valves for flood tubes. The caisson will also bedesigned with two 25,000 GPM superflood pumps and 4 36-inch diameter tubes toallow flooding of the dock. Construction shall also include mechanical plumbingand equipment requirements including controls. The contract will also include testing and certification requirements asrequired to meet all applicable Navy standards. The caisson electrical system will operate from the existing 460V/ 3Ph-400Aservice. The 460V/ 3Ph electrical service will be distributed to serve the maintank dewatering pumps, superflood pumps, electric actuators for the dewatering,superflood, equalizing and flooding isolation valves. This service will alsosupport electrical resistance heaters and blowers for the heating andventilation system. Transformers are to be designed to provide 277V and 120Vfor the lighting and miscellaneous receptacle power and controls systems. The configuration of the caisson will include structural features to allow useof bilge blocks for docking to assist in resistance to overturning in the eventof seismic activity and wind forces during drydocking operations. The steel caisson will have an all elastomeric seat gasket system as opposed tothe existing combination wood and rubber seat system. The method of attachment to the caisson will be through welded studs.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DON/NAVFAC/N62472NH/N4008509R7048/listing.html)
- Record
- SN01990249-W 20091024/091022234846-6f6d7fe04cc5a23d670f1bbc8afa9fd0 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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