^" IMAGE EVALUATION TEST TARGET (MT-3) 1.0 I.I 11° III ;/■ m M 1.8 s ■ 1.25 1.4 1.6 ^ 6" ► <^ w. om. /# ^? '^W ^a* J> 7 .rm ■^ V ^ >. w ^ >^ PhologTciphic Sciences CoqxFcition ;\ ^4' 4 V \ \ % m \ ^ ^ 73 WIST MAIN SiREIT WEBSTER, N Y I4S80 (716) •72-4J03 4^ O^ ^"^ 4 CIHM/ICMH Microfiche Series. CIHM/ICMH Collection de microfiches. Canadian Institute for Historiral Microreproductions Instiiut Canadian de microreproductions historiquee 1980 Technical and Bibliographic Notes/Notes techniques et bibliographiques The Institute has attempted to obtain the best original copy available for filming. Features of this copy which may bo bibliographically unique, which may alter any of the images in the reproduction, or which may significantly change the usual method of filming, are checked below. L'Instftut 8 microfilm^ h meilleur exemplaire qu'il lui a 6t6 possible de se procurer. 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Tous les autres exemplaires originaux sont film6s en commenpant par la premidre page qui comporte une empreinte d'impression ou d'iliustration et en terminant par la dernidre page qui comporte une telle empreinte. Un des symboles suivants apparaitra sur la dernidre image de cheque microfiche, selon le cas: le symboie — •- signifie "A SUIVRE' , le symbole V signifie "FIN". Les cartes, planches, tableaux, etc , peuvent dtre filmds d des taux de reduction diffdrents. Lors^iue le document est trop grand pour dtre reproduit en un seul clichd, il est filmd A partir de ('angle sup6rieur gauche, de gauche A droite, et de hauT en bas, en prenant le nombre d'images ndnessaire. Les diagrammes suivants illustrent la methods. errata to I pelure, on d D 32X 1 2 3 1 2 3 4 5 6 Re 1. char Brici ing 1 •> *^. conl part volu in for 3. No. frcsli more roj)ej 4. bo ol (!■ croys tolor; tions foot i stake ond ( lovol tlio V taliioi (2.: drop INTERCOLONIAL RAILWAY. -<•»- General Instructions (No. 1.) Respect iii|;i; Measitreiiieiit of fUtreani^. 1. In order to determine finally the number, the character, and the clear waterway of Culverts and Bridges on the Line of Railway, information respect- ing the freshet discliarge of streams is required. -, 2. Books have been [)repared for the purpose of re- cording information — No. 1 for entering in the field, j)articulars as to the sectional area, velocity, and volume of streams ; and Book No. 2, for entering re- sults obtained from No. 1, and in addition other information bearing on tl»e sul)ject. 3. The observations and measurements for Book No. 1 must be made, if practi(*able, when the snow fresliets are at, or near, their height ; and if there be more than one freshet, the observations should be rei)eated. 4. The sectional area, velocity, and volume may be obtained with sufificiont accuracy as follows : — (1.) Select a jdacc nej^r where the Line of Railway crosses the stream, and where its bed and sides are tolerably regular, well defined and free from obstruc- tions. Measure oif a sei^tion of the stream, say 100 feet in length, in ordinary cases; at this place, drive stakes at the water's oxlfj^i^, ori both sides, and at each end of the section, until the heads of the stakes be level with the water; these stakes will be left until the water falls, and then the sectional area ascer- tained. (2.) Take a piece of wood about the »ize of an egg, drop this into the stream at the upper stakes, noting (95) 2 accurately the time by a second watch, that it takes to float to the lower stakes. Repeat this, say five times, entering each trial in the proper column in Book No. 1. The mean time and velocity per second will afterwards be found in the office. 5. The cross sections where the stakes are driven will be measured by a line and rule or other means when the water falls. 6. Special observations will be required for large rivers, and full enquiries should be made with regard to the effects of ice, the highest known floods, &c , &c. 7. The velocity of very small streams such as those less than 2 feet wide and 6 inches deep need not be ascertained, but these and streams of every de- scription should be entered in columns A and C, Book No. 2 ; and all but the exceptions named, in column B. 8. The inclination of streams may be ascertained at any time before or after the freshet, and entered in column A, Book No. 2 ; the tape and spirit-level should be used in making these measurements. 9. All field measurements and observations should be entered as they are made in the proper place in the books provided for the purpose. Field notes should be disdinctly made in pencil, and remain un- altered. Notes recorded in the office sliould be in ink. 10. The mean sectional area, velocity, a, id volume, when ascertained, will be transcribed from Book No. 1 to Book No. 2. 11. As much accuracy as possible is requested, and it is especially enjoined that when a froshet occurs, whatever the condition of the weather or the travelling may be, the opportunity of obtaining the information desired will not be allowed to pass, and that means may be adopted to have every stream on the line examined whilst the water is high. 12. In tlie event of the water in any stream liav- ing fallen before being readied, the Engineer making the examination will judge from water-marks on the banks as to the greatest height of the water, and leave the cross section stakes driven at this height ; he should, however, ascertain the velocity of streams tlie ' it takes say five in Book and will e driven r means br larjre I regard &c , &c. such as 3p need ^ery de- C, Book umn B. ?rtained tered in •it-level as he finds them, and eni'^r the circumstances in the column for remarks. He will also note in the column tor remarks the clear width and height of all common Koad Bridges over streams .-ear the Line of Railway statmg how long they may have been in use, and other particulars. 13. The object being to make ample provision for the easy flow of flood water across the Line of Rail- w^ay, It IS urged that every information bearing on the subject will be obtained, and entered in the books provided for the purpose. The Engineer makin^? the observations will date and sign the books, and hand them to the District Engineer to be transmitted to me. SANDFORD FLEMIJN^G, H,^ , ^ Chief Engineer. ALiFAx, March 12, 1869. should )lace in 1 notes vin un- l be in olume, ok No. nested, freshet or the ng the }s, and 'am on 1 hav- laking on the r, and eight ; reams {Book Form No. 1.) I1VTERCOI.OIVIA.L I1A.il WAY. | ^'^f'OfobS Jggg_ ■ General size of Stream at rtato Stream at within 160 feet Station. ( of lino. Width. Depth. Distance between Cross Sec- tions No. of seconds to float distance Ist Trial. ^ 2nd Trial. 3rd Trial. 4th Trial 5th Trial. Sum. * Mean. IS d^ Q BO Ci .1869. I " n. Mean. ; j^^*::!-!Jl^--^'_'!^.^^'»i»^8 Will bo filled up in the office.) (Here enter No. of Contract or Division, &c. 9 00 64* Cross Section at upjjcr stakes. ■< d Cross Section at lower stakes. 1 s an ar E! 0) • " • ?? {Book Form No. 2.) Ohs.for columns B and Cmade day of. 1869. J stream at Station. p;i('.vation or Stroaiu above centre line. (loproHsion of Surface of or below the surface at Uintance Up Stream- feet. Distance Down Stream — feet. Volume at date of observations ascer- tained as per spe- cial instructions. ■2 s CO .« .01 a General size of Stream at date of obs'n. within 150 ft. of centre line. <0 « 2 I ch Wl be so: T M 9. of of 150 lie. J Information respecting Streams between. REMARKS. Here indicate any circumsfanres that may appear to effect the flow of water or the character of structure proposed. Where the line passes' along sloping ground and the works mil >nfercept the flou^ of water on the surface of (he groldf gieThe Station, between which the ditches will draw the surface drainage to each proposed Culvert In some special cases a sketch of the relative position of streams and Railway may be useful i