Territory Stories

Finniss River (Batchelor) Dam studies vol 1



Finniss River (Batchelor) Dam studies vol 1

Other title

Summary and Engineering


Sir Alexander Gibbs, and Partners Australia; Willing & Partners Pty Ltd; Environmental Planning Associates

Sponsored by

Northern Territory. Department of Transport & Work


E-Publications; E-Books; PublicationNT; Finniss River DAM studies; Report;  43/1981




Batchelor; Finniss River


The findings of the report indicate that the concept of a further storage supply to Darwin based on a dam on the Finniss River at Batchelor would be feasible and that the optimum development programme for the Batchelor Scheme would involve, in sequence, the following works : (i) construction of a pumping station at Hanna's Pool to divert the unregulated flows of the Finniss River through a steel rising main to the Darwin River catchment. (ii) construction of Batchelor Dam to F.S.L. 68 m A.H.D. (iii) construction of a concrete lined channel to transfer water between Batchelor and Darwin River Reservoirs.


Dept. of Transport & Works in association with Sir Alexander Gibb & Partners Aust., Willing & Partners, Environmental Planning Associates.

Table of contents

Summary and recommendations -- 1. Introduction -- 2. Yield Studies -- 3. Alternatives project layouts and costs -- 4. Economic studies -- 5. Project design and estimates -- APPENDICES : APPENDIX A Topographic Survey & Mapping -- APPENDIX B Geological Studies -- APPENDIX C Hydrological Investigations -- APPENDIX D Soils Laboratory Test Results -- APPENDIX E Batchelor Dam Design -- APPENDIX F Costing Data for Pipelines and Channels -- APPENDIX G Results of Economic Analyses for Alternative Discount Rates




Dams; Environmental impact statements; Water resources development Environmental aspects

Publisher name

Northern Territory Government

Place of publication



Finniss River DAM studies; Report;  43/1981


Final report volume 1 Summary and Engineering


1 volume (various paging) : illustrations and maps ; 30 cm.

File type



Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



Related links

https://hdl.handle.net/10070/674135 [Finniss River (Batchelor) Dam studies vol 2]

Parent handle


Citation address


Page content

ORIU.ING METHOD DI AMON D Corrmenced: 29 / 5/ 80 GR OUND LEVEL 56.8 metres AH O COORDI NA TES E 71083E N 558323 BOREHOLE No . FR/D/3 sheet 1 of 2 rn;nn l o ~ o ~ 11 F.I P,r SYSTEM AMG MACHINE GEMCO 2106 COIi[ IAllllt:, I IIT DUM;N N.M.L. C. ORIENTATION VERTICAL SITE r!NNISS RI VER DAM PROJECT DAMS I TI - LEFi ABUTMENT DESCRIPT I ON CORE O'F - I'\ ' ~ FE=-So~,~1_:;a~nd.:....;g~r~a~ve~l;...... ____ --t--Jr--- l'\l'\I'\ - L . '- ' I'\ 1~aterite ; quartz, quarui te , 1, , STRUC7 URES ~ z .J WATE" c FRACTURE ~ w ,RESSURE 'TEST ~ 1.0G .., ; l.EAJWi MT! cz;Cf IN UJGE0NS oo oo ... f ~., ~ ~I o .. I I I I ~ I ~ ::i si: j ~ - 2 2 I I I I 1 , ~ ~ I I I I c., zso IDO 2 .,J :::: and i rons tone grave l i n red I'\ I'\ '- i.. ' 1 I'\ ._ I'\._ t--- ..._,..., , _r""" T . . ,.,;--; I ~rown sandy so , ,, " "", I ..J,I NOT TESTED , ts t=Phyll ite , seri c:i t ic ; sandy . 1 . / I ~and s i lty ; ? tuffareous; :, . ' ! 1 . ~ i gh t grey / i ,t= .,;t=,._ . k ~ . NO CORE : ~Y 1 1 , te s er, ci tc; l i gh t to =mid grey; sandy in part ~ - ' 6~ i :.t i,--.... --------------4,..,...;. ;~+-fl j b:Pny11ite to sandstone; semii~hist, seric:itic; quartz ~ g; grains to granule size ~':' NO CORE I::: Sands tone semi-schist; E,erkosic; clayey ; grades to ., ~ ; s== sandy phy 11i te; ?tuffaceous . ~ ~ :,. -. ~ = . NO CORE EPhy11ite sandy; mid grey ~ > 1:ew,th Hmoni te. stain; as -~ fabove but stained """ ., , ; /! 1 . .:;::r 11,1 I I I - ,..,.,,..J '"'-' ,..,.,_ l,UII~ I,; ~containing abundant granule ~ =size quartz grains; may be Ir 1~E,&J tered igneous rock . ~ c::: e'1'hyllite, sericitic; very l ,.:c:::fine, unifonr. silt size; =rrn d brown - i ~ . ' H;;; I!,-' Shy 11 i te to sands tone; semi ~schis:; mid green grey with 11=1 n~gular yellow brown ~tai ning; seri c:i tic; mostly emassive L~ ~ 11 =ls! . 2"= DRILLING ftROGRESS CASING ftftOGRESS !i ALL DEPTHS a ELEVATIONS IN METRES LOGGED BY G.A. F. SCALE ,, ,oo SIR ALEXANDER GIBB a PARTNERS AUS'TRAI.IA COMMERCE HOUSE COHSULTlNG ENGINEEJtS BARTON AC, I' recovered as fragments, I'- t-.. " t-.. f'-.. can be broken with r- r--- "'- f'1' )', " " fingers r-- r- t--.;,"'-"r ! I'\ I' "'-t r-- f's NO CORE schis;gsity, bedding ? ~~"" ~ ~~ ~!'-..~"~ dip 75 ; mostly broken tc ~""""' "- ~ I'\ I'\ fragments by dri 11 i ng ~ "-' ~~'~I'-, sticks to 130nm, can be ~ " ~~ , , powdered with fingers r"\. , ~ r-. ~"-~,I'\, ~"' r---~l'\I'\ NO CORE joints0and0schistos1ty dip 75 -80; broken to fragments due to joint orienuti?ni difficult'b break whn Tinm~ staineg joints dip sou and 30 ; schis~ity, bedding? dips 80 schistosity dips ao~ op0n staiged joints dip 80 and 40 difficult to break with fingers I fo!ia~ion ? bedding dips 7~80 joints iron staineki lbut appear fairly tight-healed0 in pgrts; joints di B 45 , 80 more rare 1.) 30 .i too ha!"d to break wi tn fingers REMARKS FRACTURE L.OG NATURAL BREAKS IN COfl PER METRE S? o o 0 8 - ., 2 .. I I : I ,I I I I I t - -, SI C 9Q EOUIV~~ l".nRE P!..-r:..--, IN ,~ " I EXPLANATION CANNOT BE DETERMINED WHERE NO CORE W~ RECOVERED OR NOT APe\-lCABI. IN UNCONSOUDATED MATERIALS BIT CHANGE. ORY DRIU.ING DIPS MEASURED FROM PLANE AT RIGHT ANGLES TO CORE AXIS WEATHERING CW -eoM~LY WEATtUED HW -HIGHLY WEATHERED MW -MODERATEI.Y WUTHH!D SW -SLIGHTI.Y WEATHERED Fr St irRESH-wrTH UllilONnt STAINED JOIN1S Ft -FftESH JOB No. G-229

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