ST8807-CS 881012Oclnl~er 17, 1988
Mr. Steve Morton
/32 Deforest
Coppell, Texas 75019
Royal Lane
I.FI. 635 to Bethel
863qq. 06
Road
Deal' Mr. Morton: o0~ ,
In ~',.~sponse to your letter of September we have forwarded to
you unde[' separate cover a copy of an Agreement betW[en William
C. Ti~ompson and the City of Coppell dated April 29. 1987. This
agreement states that upon construction of Royal Lane and its
drainage improvements in accordance with the plan the City of
Coppell will be responsible for the following:
1. All traffic control devices and coordination.
2. All informational signs and coordination.
3. rvlaintaining Royal Lane and all drainage facilities constructed
irc accordance with the plan..
Therefore, any additional stop bars, railroad pavement markings,
signage, striping and traffic buttons necessary in addition to those
shown on the plans are the responsibility of the City of Coppell,
We have stressed the importance of professionally marking, signing
and buttoning the Cotton-LB J-Royal intersection and have presented
the City a proposal for its design and coordination.
A concern for mud in traffic lanes can be minimized by ensuring
that the Contractor grades medians to drain on a ¼"/ft slope as
instructed on Coppell standard detail sheets. The current excess
amount of median fill at station 15+00 invites a maintenance problem
and should be removed by the Contractor and reconstructed in
accordance with the plan.
A request for erosion protection for all ditch slopes should be re-
evaluated in light of the following:
Mr. Sieve Morton
October 12. 1988
Page 7
1. If~undation of the channel as a result of preseri,t outfall
conditions.
2. Probable further construction in channel "A" by the Postal
Service.
3. Erosion protection should be limited to areas where, drainage
concentrates before entering the channel.
Please cio not hesitate to call if we can answer any questions.
F, incerely,
\
Direclor. Civil ~13'ngineering
CLS/np
l'~arry Knight, Winstead McGuire
Alan Ratliff, City of Coppell
i~ussell Doyle, City of Coppell
Larry Jackson, Sallinger Nichols
Wayne Ginne, Ginn, Inc.