83-01 O - Street Specifications Pertaining to Subdivisions ORDINANCE NO. 83-/
AN ORDINANCE OF THE CITY OF PROSPER , COLLIN COUNTY , TEXAS ,
PROVIDING FOR THE GENERAL SPECIFICATIONS PERTAINING TO SUB-
DIVISIONS WITHIN THE CITY ; PROVIDING FOR THE STREET ARRANGEMENT
AND STREET DESIGN IN SUBDIVISIONS WITHIN THE CITY ; PROVIDING
FOR BUILDING LINES , DRAINAGE EASEMENTS , AND THE GEOGRAPHICAL
SHAPE OF LOTS; PROVIDING SPECIFICATIONS FOR STREETS WITHIN A
SUBDIVISION WITHIN THE CITY ; PROVIDING THAT SUCH STREETS BE
MAINTAINED BY THE OWNER FOR ONE ( 1 ) YEAR AFTER THE APPROVAL
AND ACCEPTANCE OF A STREET BY THE CITY ; PROVIDING FOR THE FILING
OF CERTAIN BONDS BY THE OWNER OF A STREET WITHIN A SUBDIVISION
OF THE CITY ; PROVIDING FOR REPEAL OF ORDINANCES OR PARTS OF
10K ORDINANCES IN CONFLICT HEREWITH; AND , PROVIDING FOR PUBLICATION
AND THE EFFECTIVE DATE OF THIS ORDINANCE .
WHEREAS, it is deemed in the public welfare by the City
Council of the City of Prosper , Texas , to have specifications
pertaining to subdivisions within the City of Prosper, Texas ;
NOW THEREFORE , BE IT ORDAINED BY THE CITY COUNCIL OF THE
CITY OF PROSPER , TEXAS:
SECTION 1 . Section 1 of this ordinance is attached hereto
and described as "EXHIBIT A" and consists of eleven ( 11) pages
and is made a part hereof the same as if copied and set forth
04100 at length .
SECTION 2 . That if any part of this ordinance is , or should
be held invalid for any reason, then that fact shall not invalidate
the entire ordinance , but the balance thereof shall remain in
full force and effect .
SECTION 3 . All other ordinances or parts of ordinances in
conflict with this ordinance are hereby repealed to the extent of
such conflict .
SECTION 4 . That this ordinance shall be published in
accordance with Tex . Rev . Civ . Stat . Ann . Arts . 1013 and 1152
and it shall become effective from and after its passage and
approval .
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• Passed and adopted this 0t,6 day of C ' , A.D. 1983 .
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16
YOR OF THE CITY OF
ROSPER , TEXAS
ATTEST :
e.e
C ITY SE t ETARY FOR THE CITY OF
PROSPER , TEXAS
APPROVED AS TO FORM:
4111
CITY AT E FOR THE CITY OF
PROSPE , TEXAS
1.. SECTION I -- GENERAL SPECIFICATIONS
2. General Specifications pertaining to subdivisions
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3. within Prosper, Texas, having been considered by the City
4. Council shall be as follows:
5. A. Street Arrangement: Unless otherwise approved by
imr 6. the City Council, provisions must be made for the
7. extension of existing dead-end streets within
8. recorded adjacent subdivisions.
9. Proposed streets must conform to existing
10. topography as nearly as possible, in order that
11. drainage may be provided. Streets should,
12. wherever possible, follow valleys or depressions
13. so as to form a collection system for surface
14. water.
15. A11 streets must be names and marked by th
1111, 16. developer with permanent metal signs with letters
17. at least four (4) inches high, and the developer
18. shall make sure that there is no conflict with
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19. the name of another public road or street within
20. the unincorporated part of the County or nearest
21. city.
22. B. Street Design: The minimum width of a street
23. right-of-way within the subdivision shall be
24. sixty (60) feet, unless already platted, the minimum
25. 'radient shall be four-tenths (0.4) percent and the
26. maximum gradient shall be ten (10) percent.
27. Where a County Road abuts the subdivision,
28. the Owner shall set back the subdivision line
29. thirty (30) feet from the centerline of the
EXHIBIT A PAGE 1
1. ' existing County road.
2. A list of names roads and streets in the
3. areas of the Town of Prosper will be kept
4. in the office of the City Secretary.
mow 5. C. Cul-de-sacs: Cul-de-sacs may be permitted where
6. the form or contour of the land makes it
7. difficult to plat with connecting streets. Such
8. cul-de-sacs shall provide proper access to all
9. lots, and a turn-around shall be provided at the
10. closed end, with an outside street line radius of
11. at least fifty (50) feet.
12. D. Lots: All lots, so far as practicable, shall
13. have the side lines at right angles to the street
14. on which the lot faces, or radial to curved
15. streets lines. All lot corners, angle points,
Amp
16. point of curve, etc. shall be marked with steel
17. rods of at least 18" in length or concrete
18. 4 markers.
19. E. Building Lines: Building set-back lines shall be
20. shown on all lots intended for residential use,
21. and shall provide for a minimum set-back of at
22. least thirty (30) feet. A building set-back
23. line from the flood plain boundary of the 100
24. year frequency flood shall be shown, or state that
25. the floor level will be one (1) foot. Each lot
111 26. shall have a useable building lot of a minimum of
27. 75 ft. by 75 ft. (7875 sq. feet in all) .
28. F. Drainage Easements: Provisions shall be made for
29. drainage easements to allow for proper control of
30. drainage, and for future maintenance within the
EXHIBIT A PAGE 2
1. easement area. A drainage map showing the
2. drainage area for each culvert or bridge shall
3. accompany the plat submitted. Calculations
low 4. showing quantity of water to be carried at each
5. culvert or bridge shall be shown.
6. G. This specification has been prepared as a guide
7. to the contractors, developers, and City
8. Engineer to provide a long lasting road, an
9. adequate drainage system and to protect the
10. public from septic tank sewage disposal systems
11. that do not function properly. It is understood
12. that although not all details of construction are
13. included, developers are expected to provide a
imp 14. high quality road and drainage system in the
15. subdivision herein regulated.
16. Construction: Prior to beginning any
17. .. construction within the subdivision, the Owner
18. shall contact the Registered Professional
19. Engineer appointed by the City Council.
20. The Engineer shall go over the construction plans
21. of the Owner. All streets shown on the Plat must
22. be paved and must meet the following
23. specifications:
24. 1. Asphalt streets with lime stablized
25. subgrade and base.
26. a. The area on which roads are to be
27. constructed shall be cleared and
28. grubbed free of visible organic matter
29. such as, roots, stumps, or grass.
EXHIBIT A PAGE 3
'1 b. The road bed is to be graded to an
2. approved level with V-type borrow
3. ditches on each side where applicable.
4. c. Subgrade levels requiring more than 8
S. inches of fill shall be rolled with a
011 6. sheep foot roller before making the •
7. fill. The rolling shall be done on
8. soil having optimum moisture content
9. and shall be rolled until the soil is
10. compacted to 95% procter density to a
11. thickness of 6 inches. Also, a test of
12. • the compaction can be made by use
13. of a heavily loaded dump truck driving
14. over the compacted surface without
15. making ruts or surface sinking. Layers
16. of twelve inch (12") thickness of loose
17. earth material free of visible organic
18. matter are to be placed and compacted
19. 4 as described hereinabove by use of a
20. sheep foot roller until the required
21. cross-section is obtained.
22. d. The sub-base shall be browned to a
23. width of twenty-six (26') feet and
24. stabilized with lime to a depth of
25. eight inches (8") over a width of
26. twenty-two (22') feet and shall be
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27. rolled and shaped to provide a hard
28. subgrade over the entire (22') width.
29. Road beds constructed over seep areas:
EXHIBIT A PAGE 4
1. (1) Seep areas are to be marked by
2. visual inspection by the
3. contractor and the City
4. Engineer.
5. (2) Seep areas shall be drained to a
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6. depth of at least two (2') feet
7. • below subgrade elevation by use of
8. permanent subsurface drainage.
9. (3) After seep areas are drained, the
10. subgrade is to be compacted as
11. described hereinabove.
12. e. The base shall be of a good quality
13. crushed rock or road gravel stabilized
14. with lime to a depth of eight (8")
15. inches in thickness and eighteen (18')
16. feet in width centered on the 22'
17. compacted subgrade surface. The base
18. shall be shaped to provide an eighteen
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19. (18') foot wide pavement and shall
20. slope gradually on each side beyond the
21. 18' width to support fully the entire
22. width of the pavement base and then shall
23. be allowed to set up.
24. f. The asphalt wearing surface shall be
25. either hot mix asphalt or two course
16' 26. penetration asphalt surface treatment.
27. (1) Hot Mix Asphalt
28. (a) The prime coat or tack coat
29. shall be placed during proper
EXHIBIT A PAGE 5
weather conditions and shall
2. be allowed to properly cure
' 3. (one day) .
4. Hot mix asphalt shall
5. then be applied during proper
1110 6. weather conditions to a
7. compacted depth of two (2")
8. inches. The asphalt shall be
9. rolled to a proper density.
10. The asphalt wearing surface
11. shall be eighteen (18') feet
12. •
wide constructed of a quality
13. approved by the Engineer for
14. the City.
15. (2) Penetration Asphalt Surface
kr 16. Treatment.
17. (a) A prime coat of asphalt shall
18. be applied to the base and
19. allowed to set for an
20. adequate period of time (one
21. day ordinarily) . Two course
22. penetration asphalt surface
23. treatment shall then be
24. applied by use of clean,
25. tough and durable aggregate
go 26. of one-half inch (1/2")
27. maximum size for the first
28. course followed by the second
29. course of three-eights
EXHIBIT A PAGE 6
1. ' (3/8") inch maximum sized
• 2. aggregate. Aggregates to be.
3. applied in quanities
4. necessary to thoroughly and
• 5. properly cover asphalt.
6. (b) Rolling: After aggregates
7. have been applied to the
8. second course, a pneumatic
9. roller is to be used on the
10. entire surface until the
11. aggregates are worked into
12. the asphalt properly to the
13. satisfaction of the
14. Engineer.
• 15. 2. Asphalt Streets without lime in subgrade or
16. base.
17. Proceed with specifications l.a. , 1.b. , and
18. 1.c. ,4 hereinabove.
19. d. The sub-base shall be crowned to a
20. width of twenty-two (22') feet and the
21. last layer shall be rolled with a sheep
22. foot roller to create a compacted
23. subgrade of a least 95% procter
24. density; also a test of compaction can
25. be made by use of a heavily loaded dump
26. truck driving over the compacted
27. subgrade without making ruts or surface
28. sinking. A further test is by watching
29. the sheep foot roller feet walk out on
EXHIBIT A PAGE 7
1. •, top of the surface.
2. 3. The land owner or developer will be required
3. to install culverts under streets at all
4. entrances and at drainage courses as
5. specified by the City Engineer in
6. accordance with Texas State Highway
7. .Specifications.
8. 4. All utilities to be in place and stubbed out
9. from under the street paving to the street
10. right-of-way line so as not to disturb the
11. road surface in the process of extending and
12. connecting services to each property.
13. 5. The land owner or developer will be required
14. to contact the Engineer for an on-site
15. inspection prior to the commencement of any
16. work in the development or addition, in
17. order that the City Council may
18. approve the same or make specific
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19. recommendations as to any drainage
20. structures that may be required for the
21. addition.
22. A drainage plan showing drainage areas,
23. culvert sizes, slopes and types with
24. accompanying drainage calculations which
25. show the quantity of water to be carried by
26. each culvert.
27. The drainage plan is to show where
28. water is to flow through the subdivision and
29. away from said subdivision.
EXHIBIT A PAGE 8
1. The recorded plat shall show drainage
2. easements of necessary width to accomodate
3. water flowing in same.
4. H. In order to insure that the streets and alleys in
5. accepted and approved subdivisions are
6. constructed in accordance with the above
7. specifications, and to guarantee that they are
8. maintained to the satisfaction of the City
9. Council in a good state of repair
10. for the period of one (1) year after the approval
11. and acceptance of each street, or portion
12. thereof, shown on said subdivision plat, the
13. Owner shall file a Construction Bond, and a
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14. Maintenance Bond, each executed by some Surety
15. Company authorized to do business in this State,
+`„ 16. payable to the City of Prosper, Texas
17. in the amounts to be fixed in the amount
18. of the estimated cost of
19. 4 construction.
20. The condition of said Construction Bond
21. shall be that the Owner of said approved and
22. accepted subdivision shall begin construction of
23. such streets and alleys as are shown on the
24. subdivision plat within a period of ninety (90)
25. days from the date of the letter of intent for
26. approval of the plat of said subdivision by the
27. City Council, Prosper, Texas, and
28. prosecute and complete such construction in
29. accordance with the specifications herein
EXHIBIT A PAGE 9
1. provided within a reasonable number of working
2. days to be determined and agreed upon by the
3. Owner and the City Council, and
4. said Construction Bond shall remain in full force
Nor 5. and effect until all of the streets and alleys in
6. said approved and accepted subdivision have been
7. completed to the satisfaction of the
8. City Council.
9. In the event any or all of the streets and
10. alleys as constructed by the Owner fail to meet
11. •
the requirements of the specifications herein
12. provided and are not accepted and approved by the
13. City Council and said Owner fails or
14. refuses to correct the defects called to his
15. attention in writing by said City
tow
16. Council, the unfinished improvements
17. shall be completed at the cost and expense of
18. 4 obligees as in said orders provided. In lieu of
19. the Maintenance Bond the Owner may post with the
20. City Council a cash bond in the amount of ten
21. (100) percent of the costs of construction.
22. I. The condition of said Maintenance Bond shall be
23. that the Owner shall guarantee to maintain, to
24. the satisfaction of the City Council,
25. all of the streets and alleys shown on an
26. accepted and approved subdivision plat, in a good
27. state of repair for the period of one year from
28. the date of such acceptance and approval.
29. The Maintenance Bond by its terms shall
EXHIBIT A PAGE 10
1. ' provide that liability thereunder shall begin on
- 2. any or all of the streets and alleys shown on an
3. accepted and approved Subdivision Plat and remain
4. in full force and effect for the period of one
5. year thereafter from the date of the acceptance
6. of the construction of each street or portion
7. thereof, by the City Council in
8. writing.
9. Periodical inspection of all of the streets
10. and alleys that have been approved and accepted
11. • in an accepted and approved subdivision will be
12. made by the Engineer during the period of
13. liability covered by the Maintenance Bond and in
14. the event any or all of said streets and alleys
Cr 15. are not being maintained in a good state of
16. repair, the Owner will be so advised in writing
17. and if after a reasonable time he fails or
18. refuses to properly maintain said streets and
19. alleys, they shall then be maintained at the cost
20. and expense of obligees as in said orders
21. provided.
22. J. Maintenance: One year after acceptance of the
23. streets the City Council will assume the
24. maintenance responsibility of the streets within
sit 25. the subdivision, after said streets have been
26. constructed in accordance with the specifications
27. set forth herein; at such time any bond proceeds
28. remaining shall be returned to the developer.
29. APPROVED this the / day of
30. by the Town Council of Prosper, Texas
EXHIBIT A PAGE 11