CAMPBELL RIVER / QUINSAM RIVER

   Project 87FDC-1                                             June 1987

   Please note, this historical information reflected the channel conditions 
   and configurations at the date of survey.

   SURVEY LOGISTICS:
      25 cross sections were established and run on the Campbell River,
      commencing from Discovery Passage and extending upstream to the
      B.C. Hydro Power line crossing
      16 cross sections were established and run on the Quinsam River,
      commencing from Campbell River and extending upstream approximately
      1.2 kilometres to a road bridge.
      Cross sections were located by air photograph identification and 
      referenced with bridge bolts.

   SURVEY DATA:
   a) Field surveys were carried out by the Surveys Section, Water 
      Management Branch, Ministry of Environment.
   b) Vertical control was established by reciprocal height traversing 
      using a total station theodolite and confirmed by differential
      levelling.
   c) Cross section and road profile data were obtained using a total   
      station theodolite.
   d) Subaqueous depths were obtained by using an echo sounder.

   DATUM:
   a) Location of cross sections were established by air photograph 
      identification in the field and were assigned arbitrary coordinates.
   b) Vertical control is based on bench marks 76C235, 76C236 and 77C575,
      as listed in Geodetic Survey Division Data Bank listed in June 1987,
      and B.C. Control Survey bench marks 86HA011, 86HA012 and 86HA013 as
      obtained from Surveys and Resource Mapping Branch data bank listing, 
      dated June 1987.
   c) Elevations are in metres and are referred to the Canadian 
      Geodetic Datum, CVD28.

   MAPPING:
      A Drawing No. 87-61-3 showing the location of the cross sections
      was prepared by the Ministry of Environment, Province of British
      Columbia. Mapping for this drawing is a compilation of British Columbia
      Geographic System Mapsheets produced by Surveys and Resource Mapping 
      Branch under Mapping Project 85-035T.

   FIELD BOOKS:
      Survey data are recorded on Field Books No. 2473
 
   REFERENCE MONUMENTS:

      B.C. Control Survey                Geodetic Survey of Canada

      Bench Mark     Elevation           Bench Mark      Elevation
       86HA011          3.459              76C235           5.924
       86HA012         39.658              76C236          10.882
       86HA013         21.599              77C575           3.505