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HomeMy WebLinkAboutCrosswinds Marina Floating Breakwater (7) DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 IN REPLY REFER TO Project Management Branch March 4, 1994 SUBJECT: Crosswinds Marina Floating Tire Breakwater, B. Everett Jordan Project Dr. Philip K. McKnelly Director Division of Parks and Recreation North Carolina Department of Environment, Health and Natural Resources P.O. Box 27687 Raleigh, North Carolina 27611-7687 Dear Dr. McKnelly: Reference is made to your letter of February 3, 1994, on the above subject matter. We are pleased that the State concurs that Alternative 3 is the preferred alternative. We concur with the State that the inclusion of the marina was part of the original project feature in support of recreation benefits. We also concur that the subsequent construction of the breakwater, at the request of the State, was an appropriate means to prevent damage to vessels docked at the marina during extremely windy conditions. I would like, however, to offer some clarification based on your concern that the State thinks that the Corps holds them responsible for the failure of 'the existing breakwater and your reference to a "design problem". The "design problem" had no basis in fact. Rather, it was solely an allegation of the construction contractor which even if true, would have had no bearing on the deterioration of the anchoring or floatation system. We are enclosing some correspondence that points out that the "design problem" was simply one buoy eye bolt coming unscrewed which was resolved prior to contract completion. Considering the very unusual nature of the failure, we do not think that one could simply classify it as a "design problem". We do take full responsibility for the failure resulting from the sulfate-reducing bacteria (SRB) attacking the anchor system. This is something that was not anticipated nor thought to be a possibility during the design of the breakwater system. To this end, we are prepared to request authority and construction funds to replace the breakwater. The Corps does not hold the State responsible for the breakwater failure. We do think, however, that if some routine maintenance had been performed over these past 8.5 years, the breakwater would not be in as deteriorated a condition as it is today. Nevertheless, even in its deteriorated state the breakwater has performed its intended purpose for over 8.5 years. It is based solely on this fact that we feel the State should cost-share in the new breakwater construction for an amount equal to the service life value of the existing breakwater which has been computed to be $96,956. -2- If you have any questions or concerns, please do not hesitate to call me at (910) 251- 4501, Mr. Ed Shuford, my Deputy for Project Management, at (910) 251-4506, or Mr. Glenn McIntosh, my Project Manager for the Jordan project, at (910) 251-4671. Sincerely, George L. Cajigal Colonel, U.S. Army District Engineer Enclosures Copy Furnished: Mr. John Morris Director, Water Resources Division North Carolina Department of Environment, Health, and Natural Resources PO Box 27687 Raleigh, NC 2761 1-7687 TRIAD, Inc. GENERAL CONTRACTORS P. O. BOX 1905 DURHAM, NORTH CAROLINA Phone (919) 286-3285 or 286-9557. January 18, 1986 Mr. William T. Branager, Jr. DOA, Wilmington District Corps of Engineers, Raleigh Area Office P. O. Box 61068, Neuse Branch Raleigh, North Carolina 27661 RE: Crosswinds Marina Floating Breakwater and Slope Repair B. Everett Jordan Dam and Lake Contract No. DACW-54-85-C-0O10 Dear Mr. Branager: We had a report that a buoy broke loose from the breakwater and we investigated the matter. The buoy is attached to the chain by an eye bolt connection that is fixed into the bottom of the buoy. Our supplier, Curd Enterprizes, advised us that in this application, normal procedure would be to attach the buoy using a swivel connection. This will allow buoy rotation without stress on the connection. In this particular application, they suggest a 5/8" jaw and eye swivel since the eye bolt is made from 1/2" stock and you're using 5/8" shackles. We feel that this is a design problem and if the swivels are not attached, the problem will continue. Sincerely, TRIAD INC. J. D. Haynes DISPOSITION FORM For use of this torm, see AR 340.15; the proponent epency is TAGO. REFERENCE OR OFFICE SYMBOL SUBJECT Buoy Connection, Contract No. DACW54-85-C-0010, SAWRA Crosswinds Marina Floating Breakwater and Slope Repair, B. Everett Jordan TO: FROM DATE CMT 1 THRU: SAWC Area Engineer 24 January 1986 GREENE/mlm/4037 TO: SAWEN-DC 1. Attached is contractor's 18 January 1986 letter expressing concern over the lack of swivels for the buoy connections at the subject project. 2. In conversations with the contractor, it was learned that the buoy became disconnected from its eye bolt when the threaded eye bolt became unscrewed from a female sleeve embedded in a concrete weight inside the buoy itself. It appears to me that the eye bolt was probably never tightly screwed into the sleeve and eventually worked itself loose. 3. While I do not feel that a problem exists, I do feel that you should be made aware of the contractor's and supplier's allegations. The contractor has agreed to reattach the buoy as soon as weather permits. BRANAGER Incl as DA FORM 2496 PREVIOUS EDITIONS WILL BE USED GPO , 1984 0 - 455-151 January 24 , 1986 Raleigh Area Office (21) Sublect: Contract No. DACW54-85-C--0010 Crosswinds Marina & Floating Breakwater B. Everett Jordan Dam and Lake Triad, Inc. Port Office Box 1905 Durham, North Carolina 27702 Gentlemen: Reference is made to your letter dated 18 January 1986 concerning a buoy which recently broke loose from the marina breakwater. It is my understanding, as explained by you during our 15 January 1986 meeting, that the buoy was loosened when the threaded eye bolt became unscrewed from a female sleeve embedded in the buoy with concrete. It would appear to me that if the eve bolt had been screwed tightly into the sleeve, or even epoxyed , that the loosening would not have occurred. At any rate, I have informed our design personnel of your concerns and you have agreed to reattach the buoy as soon as weather conditions permit. I appreciate you bringing this potential problem to my attention and I will continue to monitor the completed proiect. Sincerely, William T. Branager, Jr. Authorized Representative of the Contracting Officer