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Home My WebLink About00227�42 The condition of the line is normal to any line built of untreated staves, placed in a sandy clay soil and having an equal length of service. The normal life expectancy, lip of a pipe line of this type and surrounded by similar soil conditions is about 20 years' This means that at this age the cost of maintenance will begin to exceed the cost of Interest on the investment required for replacement. 1.:aintenance cork and replacement of faulty staves will always start several years before the period of average life expectancy and increase rapidly each year. in this particular line all of the staves show a condition of partial decay and many are in a serious condition with decay advanced to a point of dangerous weakness. A number of leaks were observed both at and away from the seven points of exposure. A serious break can easily occur at any time, and leaks and breaks are bound to occur with increasing frequency and magnitude as time goes on. Such ::ill not only shut the mill down, but night easily result in severe damage to outside interests. A& Under a normal operation, where a shutdown for a few hours can be made with a resulting minor inconvenience, this line could be held in service for several (3 to 5) years, but under the pulp mill requirerents, such otherwise normal shutdown can not be tolerated. Unfortunately, a breal: cannot be forecast as to time of occurrence. 17e only rook:' that it will happen. Under the requirements of the pulp mill for a continuous and dependable supply of water, this line has become unsafe and should be replaced as quickly as possible. Even then, before replacement can possibly be accomplished, grave danger of service and repeated interruptions of service exists. I reco.W.cnd that this line be paralleled as quickly as possible and that the new I line be constructed of more permanent material than untreated staves. Several material are in cona%on usage. Cast iron r:ith a life expectancy of not less than 100 years. �■ Steel with a life expectancy of 40 years. Spun concrete (reinforced) with a life ex- C■ pectancy of 50 years. Creosoted wood stave pipe with a life expectance of 30 years. Of these m.:eterials cast iron is far the cheapest on an overall basis. Creosoted wood staves will call for the least outlay of cash. Steel with an initial cost not much less than cast iron, is more irr::ure from trouble during its normal life which, however, is retch less than cast iron and at the present time steel is more difficult to obtain. Creosoted wood staves of Zood quality make an excellent line and I pipe cause little trouble for the first 20 to 25 years. Good staves are at the present time' hard to get, but can be had under sufficiently high priorities. Yours very truly, I 32.5 County City Bldg. Seattle 4 UNIV__-hS17Y OF ':" SHINGTON Department of Civil Engineering Seattle November 17, 1943 Crown Zellerbach Corp. Port 'Iov:nsend 71 a sh ingt on Gentlemen: At your request I visited the plant at Fort Townsend and examined the 30-in. :'rood I x pipe supplying the paper mill. Excavations had been made at numerous points along both) reaches of ,he untreated rood pipe. I11 1:is gave ample means of inspecting and sampling 10 : the entire 0,000 feet of length. The progressive decay of staves has advanced to a degree that is typical of un- treated :eood in sor.^.er.}hat porous soil, and moderate internal pressure, for a period of fifteen years. Unless mood is kept permanently saturated it should not be classed with permanent materials. Some of the staves examined have only a thin layer, less than 1/2 in. in thickness, and that of none too firs; wood. 4his is all that remains to form) a pipe call that was originally thought to require 1-1/2 inches. The leakage is not great at present but this is a mark of good workmanship in the first place r•atecs than of the present condition of the staves. It must also be rer.em- tiered that in the most porous soil decay proceeds most rapidly, and that this type of oft ground also conduct:: the leakace array before it reaches the surface. It is therefore unlikely that the most vulnerable spots have yet been discovered. 7he urgency of a replacement prorr•ar: is linked inseparably with reed of continuous) service. In the present instance repairs have not been extensive. This condition may persist for pome tire, though no assurance can be gi-:'en that this will be the case. j But although the time for a major breal: may still be premature, on the other hand, if human life .,:ere at stake proper authorities would doubtless have condemned the pipe soave months ago. Some consideration should be given to safety, and therefore to a factor of safety. Such a f'egtor is no longer present in this pipe as indicated by the various breaks that have already occurred, and the advanced condition of decay. 'Le should not overlook- the fact that no break has yet occurred requiring an ir::med- late shutdown. Tire :orst bream: is 1•epovted to have come as a result of refilling chileI the plant :vas alr�•ady down for other more minor pipe repair. Counteracting this state-�� mert to a degree, how:ever, is an outstanding example of a disintegrated stave observed during the ".nspection iovember 6th ,,,hich 'rras already so displaced, because of the pres- sure within, that it c'Ihovrs marked signs of a pending break. There are probably others ' buried beneath: th:. earth covering. � 443 Assuming that a continuous supply to the mill is required, I strongly recommend that a replacement program be given irr-:ediate attention. Respectfully submitted, /a/ C. ti. Harris, Professor of Hydraulic Engineering This matter was referred to the Committee on 7:ater and Drainage. Frorr. Stanley A. Furman, to -wit: 1?ational Housing Agency Federal Public Housing Authority November 15, 1943 Regional Office In reply please refer to: ® 1326 Fifth Avenue Seattle, "Iashington R--IX:LEGAL:7.ASH-45222 Department of Streets and Sewers City of Port Townsend, Washington ® Gentlemen: The Federal Public Housing Authority is constructing a war housing project consisting of 60 temporary dwelling units for families of two or more. The Government ::111 install the entire on -site sewage system for the project. I an advised by our Project Planning Section that two sewer connections :'rith the City system are anticipated. `.'ill you kindly advise this office whether your City customarily charges a fee for permission to connect with its sewer system. Very truly yours, /s/ STr.111EY A. b'UHi.iAly kegional Counsel legion rX National 'rousing Agency Federal Public Housing Authority November 27, 1943 Regional Office In reply please refer to: 1326 Fifth Avenue Seattle, Washington R-IX:LEGAL:7.'ASH-45222 City .'inter Department City Hall Port Townsend, 77ashington Attention: ]:r. S. Lockhart ',rater Superintendent Gentlemen: This acknowledges with thanks ?:r. Lockhart's letter of November 17th enclosing a copy of the city ordinance relative to water. The rate of ,2.25 per unit, suggested in :,r. Lockhart's letter, is considerably higher than the rate at which the Govern- ment is purehasir-g water for its housing projects located elsewhere. 7:e would like to know the city's reaction to a suggestion that a special water rate be formulated to apply to the Government's Lousing development at Port Townsend. Special rates have been adopted by a number of municipalities in the Northwest ® because of :he type of service required by housing projects. For example, the City of Yedford, Oregon, having in effect an ordinance similar to No. 1110, saw fit your to charge the first occupied unit in each rorr house at the apartment house rate, and the remaining occupied units in each row house w:ere billed at the same rate, reduced by 50%,. Such a formula could be applied in the case of our project ':7AS14- ?5222 located in Port Townsend. That project consists of 11 roe: buildings, con- taining a totalof 60 family dwelling units. The project also has a community build- ing, to which might be applied the same rate as that applied to the first unit in each row. There are a number of factors which we believe should enter into your consideration of the proposed rate schedule. They are as follotrs: (1) The Government's substantial investment in the Development's water system. (2) The savings to the City by virtue of the Government's purchase of a large quantity of water through one point of delivery. These savings :could include cost of mains and lateral lines, the installation of individual meters, dis- I tribution losses, naintenance, collection and billing expenses, etc. (3) The fact that the Government will make substantial payments in lieu of taxes to the City on the land and improvements located on the project site. It is our belief that the schedule which we have proposed will be fair and equitable to both the City and the Government. 7;ill you kindly advise us of your reactions to this suggestion's Very truly yours, ST - - A gional Counsel er.ior. Lti: