ST0102-CS020828coPiSEl g
August 28, 2002
Mr. C. Jack Evans
Project Manager
Pacheco Koch Consulting Engineers
8350 N. Central Expressway, #1000
Dallas, Texas 75206
Ruby Road
ST 01-02
3ra Submittal Review Comme. nt~
Dear Mr. Evans:
Following a review of the above referenced plans, the following comments are offered
for your consideration:
COVER SHEET
1. Need to revise cover sheet to show the City as owner and include the names of the
City Council, City Manager, and the City Engineer.
2. Need to show the project number "ST 01-02".
SHEET NO. Cl.0
DEMOLITION NOTES - Add the following note: Demolition of all paving will
take place in a minimum of three phases to ensure access to mobile home park
and private residence.
2. Are the trees numbered correctly in the listing? The tree numbers only go to 199
in the plan view.
3. Add note that states that the contractor is to maintain drainage at all times during
construction.
4. Is the cement base underneath the existing asphalt to remain or to be removed by
the contractor?
SleET NO. C1.1
1. Need to coordinate the lane line button color and layout with Per Birdsall in the
Streets Division (972-304-3550). Will any additional signage be required (i.e.
speed limit sign) and who will be responsible for providing the signs, the City or
the contractor? Need to state that the buttons are plastic.
2. NOTES - Note No. 1 needs to be revised to read as follows: Contractor is to
remove and dispose of all existing pavement associated with old Ruby Road.
3. The drainage along Freeport Parkway drains towards the south radius of the
Freepor~ Parkway / Ruby Road intersection and into a ditch. Need to ensure that
this area will drain into the proposed inlet structure.
4. TYPICAL SECTION FOR RUBY ROAD - Need to add note to refer to the City
of Coppell Standard Construction Details. This note needs to be added to all of
the typical sections shown in the plans.
SItEET NO. C1.2
1. Will any testing be performed in the area between Stations 10+00 and 12+007
Does this area need to be undercut to reach stable soil before it is compacted?
2. Show pavement removal line and elevation for each existing drive.
3. Need to add note that states that existing shrubbery along the fence that is
damaged or removed will need to be replaced by the contractor.
SHEET NO. C1.3
1. Show the existing water main along Coppell Road in the profile view.
2. Show pavement removal line and elevation for each existing drive.
SHEET NO. C2.1
1. Grading and drainage off of the proposed road onto and through the trailer park is
not acceptable.
2. Does the culvert at the intersection of Ruby Road and Coppell Road really flow to
the north? Does this area need to be disturbed? It does not drain today and
probably will not drain until Coppell Road is rebuilt. There is an existing stand of
grass that will need to be re-established if disturbed.
SFIEET NO. C3.1
1. Storm Sewer Line "ST-2" crosses a proposed 8-inch water line at Station 1+85.
There needs to be a 2' separation distance between the pipes or the water line
needs to be encased.
2. Need to add note to grade to drain in the vicinity of the proposed culvert and
erosion comrol at Station 11+00 left.
SHEET NO. C3.2
1. The proposed storm sewer line "ST-3" from Station + 10+00 to 11+97.67 and the
24-inch laterals at Stations 11+84.28 and 11+94.67 may need to be Class IV pipe
because of their shallow depth.
2. Show the proposed sanitary sewer in the profile view.
3. The proposed water services need to be a minimum of 24" below subgrade. They
will be in close proximity to the proposed storm drain and sanitary sewer lines
and may need to be installed below these lines.
4. Will the existing fence cause a visibility problem at the driveways since there is a
new pavemem width?
5. Will the existing fence need to be reconstructed at the driveway radii and in the
locations where the existing water services cross?
SHEET NO. C3.3
1. Where does the northeast portion of the property drain? Does the onsite drainage
system account for it? It is assumed that it is still part of the detention study and
will be picked up onsite.
SHEET NO. C4.1
1. Why is the proposed water line so deep? It appears that the only crossing is the
48" RCP storm sewer.
2. Will a blow-off'valve be required where the water line crosses under the proposed
48" RCP storm drain?
SHEET N CO._..~.~.2
1. An air release valve is needed at approximate Station 13+00.
The proposed fire hydrant at Station 12+84.06 needs to be installed 3' from the
back of curb and there needs to be 3' of clearance around the fire hydrant. Is
there sufficient room to install the fire hydrant between the back of curb and the
existing fence?
The City is verifying the number and size of the existing water services. Need to
relocate existing water meter and setter to back of curb and reconnect to yard
service line. Some of the existing services may be aA", the City does not use less
than 1" services.
SHEET NOT C4.3
1. The proposed fire hydrant at Station 23+96.06 needs to be installed 3' from the
back of curb and there needs to be 3' of clearance around the fire hydrant.
SHEET NO. C4.4
Would consider moving the proposed sanitary sewer and/or the storm sewer
further to the south. The sanitary sewer is 12 feet deep and only 5 feet inside of
the right-of-way. It will be impossible to construct without encroaching on the
trailer park property and the private residence property. No temporary
construction easements are being acquired on this project.
The storm sewer and the sanitary sewer are at approximately the same elevation
and only 5 feet apart from centerline of pipe to centerline of pipe. Is it possible to
construct the pipelines in separate trenches?
3. Is a clean-out required at the end of the sewer line since we have a manhole?
There is usually one or the other but not both.
Please make a written response to each of the comments and revise the plan sheets as
needed. Enclosed is the review set of plans, which should be returned with the next
submittal. Should you have any questions or need any additional information, please
contact me at 972-304-7019.
Sincerely,
Taylor
ordinator
Enclosures