THE CORPORATION OF THE
CITY OF PORT COQU:ITLAM

MEMORANDUM
TO Ge Voncina, June 21, 1988

Operations Manager

FROM: S. Brown,
Asst. Operations Manager

SUBJECT: Request to Purchase a Dial-a-Grade Laser

In the past month the City has been renting a dial-a-grade
laser for our Harbour Street Sanitary sewer capital work
project. On this project there has been a definite advantage
in using this laser because oF its quick and easy set-up and
ease of use. This type of laser fs very adaptable to our
capital works projects as wel] as new services where the grade
requirements are critical. The benefits to using a laser are
as follows:

1. When the initial Survey layout is done for a project,
less field ltayout ts required, providing a saving in
layout costs.

Batter boards can take up too much room and be very
awkward to work around where a laser can be in one
location, away from the work or even in a manhole
buried with traffic running over it, making it very
easy to work witir.

Setting up the new lasers can be done very quickly and
checked easily by a Surveyor. A surveyor should check
line and grade on a laser at least once a day after
the initial set up TO ensure the laser Was set
correctly and has not moved. The laser gives the
Surveyors freedom to do other work (after the laser js
running).

With a laser it takes one man to check grades,

whether it be the excavation or the grade for laying a
pipe. The grademan never requires someone else to
give him a hand, as required with other grading
methods, making work go quicker and with more ease.

| understand these types of lasers can be used on road
and curb grades where the Slopes are constant.