• Air Space Plan 1 of the Capitol 6 Theatre bridge, it was the first Air Space Parcel in BC, C.D. Underhill, 1974

    1970-1979

    Air Space Plan 1 of the Capitol 6 Theatre bridge, it was the first Air Space Parcel in BC, C.D. Underhill, 1974

  • I.J. Royan precise levelling for the Port Mann Bridge

    1970-1979

    I.J. Royan precise levelling for the Port Mann Bridge

  • C.D. Underhill survey in Yemen in 1970 for CANCON was the first overseas project done by Underhill

    1970-1979

    C.D. Underhill survey in Yemen in 1970 for CANCON was the first overseas project done by Underhill

  • C.D. Underhill measuring with a Geodimeter Model 76,  Control survey

    1970-1979

    C.D. Underhill measuring with a Geodimeter Model 76, Control survey

  • Geodimeter Model 76 long range laser EDM with Highland Helicopter Bell 206 landing, Control Survey

    1970-1979

    Geodimeter Model 76 long range laser EDM with Highland Helicopter Bell 206 landing, Control Survey

  • I.J. Royan operating a Kern DKM2 with a DM 501 EDM, the Kern was amazingly light weight and accurate

    1970-1979

    I.J. Royan operating a Kern DKM2 with a DM 501 EDM, the Kern was amazingly light weight and accurate

  • C.D. Underhill and assistant turning sets of angles on a Mountain control survey

    1970-1979

    C.D. Underhill and assistant turning sets of angles on a Mountain control survey

  • J.M. Parnell, and programmer, at the Wang WCS/20, the Wang had 32Kb of memory, and dual 250Kb floppy drives (one for the software, and one for data),  survey/plotting software (TRIAX) was developed in-house. ca. 1975-1985

    1970-1979

    J.M. Parnell, and programmer, at the Wang WCS/20, the Wang had 32Kb of memory, and dual 250Kb floppy drives (one for the software, and one for data), survey/plotting software (TRIAX) was developed in-house. ca. 1975-1985

  • The partners in the boardroom of the W. 7th Ave. office in Vancouver, from left: J.W. Sharpe, C.D. Underhill, T.E. Koepke, F.B.  Underhill, W.G. Robinson. ca. 1975-1979

    1970-1979

    The partners in the boardroom of the W. 7th Ave. office in Vancouver, from left: J.W. Sharpe, C.D. Underhill, T.E. Koepke, F.B. Underhill, W.G. Robinson. ca. 1975-1979

  • John Biehl and Earl Shook setting signals, on a photo control survey in the Fraser Canyon

    1970-1979

    John Biehl and Earl Shook setting signals, on a photo control survey in the Fraser Canyon

  • P. Dawes with the Geodimeter 700 (introduced in 1971), on the Kootenay Power Project Survey for BC Hydro, the Model 700 was the first instrument that could measure angles and distances electronically, data was stored on paper punch tape

    1970-1979

    P. Dawes with the Geodimeter 700 (introduced in 1971), on the Kootenay Power Project Survey for BC Hydro, the Model 700 was the first instrument that could measure angles and distances electronically, data was stored on paper punch tape

  • M. Levesque turning angles with a Wild T1, the instrument on the seat of the Skidoo is an HP 3800 EDM

    1970-1979

    M. Levesque turning angles with a Wild T1, the instrument on the seat of the Skidoo is an HP 3800 EDM

  • Earl Shook and John Biehl on mountain setting a signal on a triangulation survey in the Fraser Canyon

    1970-1979

    Earl Shook and John Biehl on mountain setting a signal on a triangulation survey in the Fraser Canyon

  • Wild T2 (under signal), and Geodimeter Model 76, on mountain control survey

    1970-1979

    Wild T2 (under signal), and Geodimeter Model 76, on mountain control survey

  • Wild T2, and Geodimeter 76 (foreground), Highland Helicopter Bell 206 (background).  Mountain control survey

    1970-1979

    Wild T2, and Geodimeter 76 (foreground), Highland Helicopter Bell 206 (background). Mountain control survey

  • T. Connolly with Geodimeter Model 6, surveying the CP Rail Dunsmuir tunnel under Vancouver

    1970-1979

    T. Connolly with Geodimeter Model 6, surveying the CP Rail Dunsmuir tunnel under Vancouver

  • T. Connolly operating the Geodimeter Model 6, on the survey of the CP Rail Dunsmuir Tunnel under Vancouver, BC

    1970-1979

    T. Connolly operating the Geodimeter Model 6, on the survey of the CP Rail Dunsmuir Tunnel under Vancouver, BC

  • C.D. Underhill with Wild T2 on BC Hydro Transmission line, 2nd Narrows cable crossing, survey in Burnaby, BC

    1970-1979

    C.D. Underhill with Wild T2 on BC Hydro Transmission line, 2nd Narrows cable crossing, survey in Burnaby, BC

  • W.G. Robinson, President, Corporation of Land Surveyors of BC, 1971

    1970-1979

    W.G. Robinson, President, Corporation of Land Surveyors of BC, 1971

  • C.D. Underhill, measuring distances on a control survey, with the Geodimeter Model 76

    1970-1979

    C.D. Underhill, measuring distances on a control survey, with the Geodimeter Model 76

  • C.D. Underhill and D. LePatourel with C.D.'s high pogo pole invention

    1970-1979

    C.D. Underhill and D. LePatourel with C.D.'s high pogo pole invention

  • I. Royan in the Stikine area,   BC Hydro Stikine Investigation, 1978

    1970-1979

    I. Royan in the Stikine area, BC Hydro Stikine Investigation, 1978

  • D. LaPaturel on rim of Stikine Canyon,  BC Hydro Stikine Investigation, 1978

    1970-1979

    D. LaPaturel on rim of Stikine Canyon, BC Hydro Stikine Investigation, 1978

1970–1979

The fuel crisis, inflation, and interest rates all contributed to the recession of the 70s. Canada converts to the metric system.

Underhill surveyed many major developments:

  • Pacific Centre Mall including the Four Seasons, Vancouver
  • Three Bentall Centre, Vancouver
  • Four Bentall Centre, Vancouver
  • Granville Square, Vancouver
  • Royal Centre, Vancouver
  • Vancouver Centre
  • Buildings at UBC
  • False Creek Development of CPR Lands
  • South Shore of False Creek
  • Arbutus Village
  • Crown Life Place
  • 1200 Burrard, Vancouver
  • Crestwood Business Park, Richmond
  • Willowbrook Mall, Langley
  • BC Telephone Building
  • Brentwood Mall, Burnaby
  • BCIT/Discovery Parks, Burnaby
  • Lougheed Mall, Burnaby
  • Mayfair Industrial Park, Coquitlam

This also included lease surveys of many of the above mentioned projects.

Like the previous decade, numerous transmission line surveys were conducted for BC Hydro throughout BC – Mica Dam, Downey Dam Site, Revelstoke, and McGregor Reservoir Mapping. Work was completed at Peace River sites C and E, Kootenay River Diversion, Columbia River Revelstoke Project, McGregor River, Duncan River, Iskut, Liard, and Stikine and Skeena Rivers.

Some of the photo control surveys done during this period included CP Rail through the Rogers Pass and BC Rail at Table River.

Monitoring started at Saskatchewan Wheat Pool, North Vancouver. It continues to today.

Vancouver office moved to 1646 West 7th Avenue.

Milestones

1970

T.E. Koepke and D.T. Simmons become partners in Underhill. W.G. Robinson serves as the Secretary of the Corporation of Land Surveyors of BC.[10] Tim Koepke moves to Whitehorse, Y.T., to open a new office—he is told it is for two years! T.L. Jones retires from the partnership.

1971

W.G. Robinson is elected president of the Corporation of Land Surveyors of BC.[10]

1972

F. (Bruce) Underhill enters articles to become a Land Surveyor with W.G. Robinson. Jim Sharpe tells him his wages will be different from what's in the appointment letter. T.D. Connolly starts working at Underhill. A.T. Holmes completes Underhill's first strata plan (VR 61). By 2011, Underhill has completed over 190 strata plans. Hewlett Packard (HP) produces the HP 35 scientific calculator.[27]

1973

C.D. (Dave) Underhill consults on Underhill's first overseas project in Yemen for CANCON. HP produces the HP 45 scientific calculator.[27] New functions important to surveyors: polar–rectangular conversions, and sexagesimal–decimal conversions.

1974

C.D. Underhill surveys the first air space parcel in BC (Air Space Plan 1). HP introduces the HP 65, the first programmable calculator.[27]

1975

F.B. Underhill, DLS, (son of Clare Underhill) obtains his commission as a BCLS and joins the partnership.[10] The company opens a new office in Langley, BC. The office is managed by D.T. Simmons, BCLS.

1976

The Langley office closes.

1977

T.D. Connolly obtains his BCLS.[10] He does the photo control survey for the aerial mapping of the Table River and Sukunka Valleys. This a prelude to the development of the BC Rail Tumbler Ridge Brnch Line. A.T. Holmes retires from the partnership.

1978

A.T. Holmes is awarded Life Membership in the Corporation of Land Surveyors of BC.[10] The Stikine/Iskut Development mapping for BC Hydro is commenced.

1979

Ivan Royan, QLS, obtains his commission as a BCLS.[10] Underhill opens an office in Fort Nelson managed by Phil Asher and Dave LePatourel, BCLS.

S. Thorne designs the Underhill logo, still in use today. It has two U letters, for the founding brothers, and a plus-sign, for 'and' (as well as sighting cross-hairs). W.G. Robinson, in association with H.C. Engler of W.D. Usher & Associates in Edmonton, survey a portion of the BC–Alberta border near the Crow's Nest Pass from 1979 to 1981.

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