DR8902-CS 881026 COPPELL PUBLIC WORKS
MEI~ORANDUM
TO: Alan Ratliff, City Manager ~ OCT 2 8 1988
FROM: Steve Goram, Director of Public Wot
RE: Bethel School Channel East of Swan CITY MANAGER
Final grade of the channel, railing, clean out of the box culvert
and removal of the spoils which were removed from the channel bottom
was achieved on 10/25/88. Forms for replacing the segment of sidewalk
which was incidental of excavating the channel have been set and
will be repoured in the next few days.
Final grade of the channel and banks were not as recommended by
Ginn, Inc. because the recommendation was preceded by one month
by the written price quotes. These quotes were given to excavate
the channel to drain with variable side slopes. These specifications
were given to restore the channel to its pre-existing condition
which does not correspond to our as-built drawings. Designed by
Don A. Tipton, Inc., Consulting Engineers.
The railing which is presently installed at the location is 4' tall
but does not surround the wingwalls and is not 4' above the elevation
of the sidewalk. The reason for this is that the rails were
constructed previous to any recommendation by Ginn, Inc. By
observation staff feels this should sufficiently protect the
pedestrians' safety.
The slope between the sidewalk and the headwall is hard packed dirt
and has been seeded with winter rye which should provide sufficient
erosion protection for those slopes. Sod as recommended by Ginn,
Inc. would not be able to take root before next year's growing season.
In summary, positive drainage has been restored, erosion protection
has been placed, and pedestrian safety has been increased in staff's
opinion by the actions taken. Any additional improvement to this
location will require considerable expenditure of funds. Such
improvement is recommended to be included as a C.I.P. ~r~oject for
this dedicated park area.
If you have any questions, please advise.
SGG/sm
cc: Per Birdsall, Street Foreman
Howard Pafford, Water Foreman
Richard Diano, Parks Foreman
Russell Doyle, City Engineer
Wayne Ginn, Consulting Engineer