[Ord. No. 1250, 10-15-2002]
A.
The functional classification, location, and rights-of-way and pavement
widths of all streets shall conform to the City of Branson West Comprehensive
Plan and the Branson West Subdivision Regulations. In any case where
additional street right-of-way is required, the additional right-of-way
shall be split on both sides of the existing right-of-way unless otherwise
approved by the Board of Aldermen. Where not shown, the arrangement
and design standards of streets shall conform to the provisions herein
and/or the Missouri Department of Transportation where applicable.
Streets which have an entry onto a State highway will require approval
from the Missouri Department of Transportation. Streets which have
an entry onto a Stone County roadway will require County approval.
B.
The arrangement of streets in new subdivisions shall be coordinated
with existing, proposed and anticipated streets outside of the subdivision.
Provision shall be made for the continuation of existing streets in
adjoining areas.
C.
When a new subdivision adjoins a tract susceptible to being subdivided,
new streets shall be extended to the boundaries of such tract.
D.
Streets shall be related appropriately to the topography and street
grades shall conform as closely as practical to the original topography.
Street grades shall be in accordance with the requirements of this
Part.
E.
Street jogs with centerline offsets of less than one hundred fifty
(150) feet shall be prohibited.
F.
Local streets shall be designed to discourage through traffic. However,
provisions must be made for the extension of arterial and collector
streets into and from adjoining areas.
G.
Permanent dead-end streets or culs-de-sac shall be no longer than
eight hundred (800) feet and shall provide at the closed end a paved
turn-around having a minimum diameter of eighty (80) feet to the face
of the outside curb or pavement and one hundred (100) feet to the
street right-of-way line.
H.
Any street dead-ended for access to an adjoining property, or temporary
in nature because of authorized staged development, shall be provided
with temporary, all-weather turn-around at the end of the street and
the use of such turn-around shall be guaranteed to the public until
such time as the street is extended.
Every lot shall have access to a road that provides reasonable
ingress and egress for emergency vehicles as well as for the intended
use of the lot.
I.
When a subdivision abuts or contains an arterial street or State
highway, the City may require marginal access streets, reverse frontage
lots, or other such treatment as may be necessary for adequate protection
of abutting properties and to provide separation of through and local
traffic.
J.
Half-streets shall be prohibited except where such streets, when
combined with a similar street (developed previously or simultaneously)
on property adjacent to the subdivision, create a street that meets
the right-of-way and pavement requirements of the City of Branson
West Subdivision Regulations and this Part. In such case, the developer
shall dedicate that portion of land in the proposed subdivision that
will complete the street right-of-way to the minimum standards.
[Ord. No. 1250, 10-15-2002]
A.
Clearing And Grubbing. Clearing and grubbing shall be performed within
the right-of-way and easement limits shown on the plans. All timber,
brush, roots, stumps, trees or other vegetation cut during the clearing
operations shall become the contractor's responsibility to dispose
of, and shall be either removed from the project site, or satisfactorily
disposed of on-site.
B.
Grading And Compaction. Streets shall be graded in accordance with
the lines and grade set by the Engineer. Before placing curb and gutter
or base on the graded sub-grade, the sub grade shall be compacted
to ninety-five percent (95%) Standard Proctor for a depth of eight
(8) inches and then shall be proof rolled with a fully loaded pump
truck in the presence of the Engineer. Places that are found to be
loose, or soft, or composed of unsuitable materials, whether in the
sub-graded or below it, must be dug out and refilled with compacted
crushed limestone base rock conforming to MoDOT 304 Type I stone.
All embankments or fills shall be made in eight (8) inch horizontal
lifts of suitable material. The fill shall be rolled with a sheepsfoot
roller after each lift, followed by a wheel roller, each weighing
not less than eight (8) tons.
C.
Street Construction.
1.
Arterial And Collector Streets. All arterial and collector streets
designed, extended, installed or developed within the City shall meet
the City requirements for construction of said streets and shall,
at a minimum, be constructed with four (4) inches of wet compacted
limestone base, conforming to Missouri Department of Transportation
(MoDOT) 304 Type I stone. The contractor shall be responsible for
keeping the stone base free of contamination from clay or other foreign
materials. An eight (8) inch compacted asphalt base course shall meet
MoDOT 301 specifications, and a two-inch compacted asphalt surface
course shall meet MoDOT specifications for Type 401-BP2 asphalt.
2.
Other Streets. All other streets designed, extended, installed
or developed within the City shall meet the City requirements for
construction of said streets and shall, at a minimum, be constructed
with four (4) inches of wet compacted limestone base, conforming to
Missouri Department of Transportation (MoDOT) 304 Type I stone. The
contractor shall be responsible for keeping the stone base free of
contamination from clay or other foreign materials. A five (5) inch
compacted asphalt base course shall meet MoDOT 301 specifications,
and a two (2) inch compacted asphalt surface course shall meet MoDOT
specifications for Type 401-BP2 asphalt.
3.
Installation And Testing. All sub-grade, crushed limestone,
asphalt base course and asphalt surface course shall be installed
and tested in accordance with Stone County and MoDOT requirements.
Tests shall be performed at a minimum rate of one (1) per one hundred
(100) lineal feet of roadway or a minimum of two (2) tests per day,
whichever is more frequent.
D.
Pavement Section Variations. Where soils are unstable, as determined
by the testing agency selected by the City, the developer may be required
to have soil tests run and a pavement design made by a qualified soils
engineer.
E.
Curb And Gutter. All streets shall be constructed with concrete curb and gutter, except for local residential streets serving single-family subdivisions or single-family residential lots of one (1) acre or greater which may be constructed with ditch drainage. Where ditch drainage is proposed, the subdivider may be required to install curb and gutter or other structural drainage facilities at locations specified by the City to insure flow of storm water from one (1) drainage conveyance system to a different system. Concrete curb and gutter shall be constructed according to the lines and grades established by the City Engineer. The concrete shall meet MoDOT requirements. The curb and gutter shall be thirty (30) inches wide, and shall have a vertical curb face. Curb and gutter shall be installed in conformance with Drawings No. 18 and No. 19, see Appendix A to this Chapter, and City specifications for said improvements.
F.
Cut And Fill Slopes. Cut and fill slopes shall not exceed one-fourth
(1/4) inch per foot from the edge of the street pavement or curb back
to the street right-of-way line.
It is preferred that most slopes adjoining rights-of-way should
be sloped no steeper than a 3:1 grade.
G.
Street Grades. The minimum grade at any point on any street shall
be one-half of one percent (0.5%). Unless a greater grade is approved
by the City, the maximum grade shall be twelve percent (12%). However,
in no case shall streets be constructed with grades that create a
substantial danger to the public safety.
H.
Street Intersections.
1.
Intersections involving the junction of more than two (2) streets
shall be prohibited.
2.
Streets shall intersect as nearly as possible at right angles.
The angle of intersection of street centerlines shall not be less
than seventy-five degrees (75°).
3.
Except where no other alternative is practical or legally possible,
no two (2) streets may intersect with any other street on the same
side at a distance of less than four hundred (400) feet measured from
centerline to centerline of the intersecting street. When the intersected
street is an arterial, the distance between intersecting streets shall
be at least six hundred (600) feet.
4.
Street curb intersections shall be rounded by a tangential arc
with a minimum radius of twenty-six (26) feet for intersections of
two (2) minor streets and thirty (30) feet for intersections involving
collector or arterial streets. Where substantial use is anticipated
by large vehicles, such as recreational vehicles or semi-trailers,
the curb radius shall be increased to accommodate the anticipated
use.
5.
Design Speed, Sight Distance, Centerline Radius
|
Design Speed, Sight Distance, Centerline Radius
| ||
|---|---|---|
|
Local Streets
|
Collector & Arterial Streets
| |
|
Design Speed
|
25 mph
|
30 mph
|
|
Minimum Sight Distance on Vertical Curve
|
100 feet
|
200 feet
|
|
Minimum Centerline Radius
|
100 feet
|
200 feet
|
I.
Sight Distances At Intersections.
1.
At no-stop intersections, the intersection shall be constructed so that a person standing at a location on the centerline of any street ninety (90) feet from the intersection of the street centerlines has an unobstructed view to a point located on the centerline of the intersecting street ninety (90) feet (in either direction) from the intersection of the street centerlines. See Standard Drawing No. 20, in Appendix A to this Chapter.
2.
At stop intersections the intersection shall be constructed so that a person standing ten (10) feet back of the intersection right-of-way lines on the stop street has an unobstructed view to a point on the right-of-way line of the intersecting through street located seventy (70) feet from the intersection of the right-of-way lines. See Standard Drawing No. 21, in Appendix A to this Chapter.
3.
At street connections to primary state roads the intersection shall be constructed so that a person standing thirty (30) feet back of the intersection right-of-way lines on the stop street has an unobstructed view to a point on the right-of-way line of the intersecting through street located one hundred fifty (150) feet from the intersection of the right-of-way lines. See Standard Drawing No. 22, in Appendix A to this Chapter.
[Ord. No. 1250, 10-15-2002]
A.
All driveway entrances and other openings onto streets within the
City's planning jurisdiction shall be constructed so that:
B.
Driveway approach wings shall be a minimum of four (4) feet, with
two (2) feet on each side of the driveway. Driveway approach base
shall be four (4) inches of five-eighths (5/8) inch rock or equivalent
and sub-grade shall be compacted to ninety-five percent (95%) Standard
Proctor ASTM D698. Driveway approaches shall be constructed of Portland
concrete and shall be six (6) inches thick.
C.
Where drainage culverts are required, all driveway entrances and
other openings onto streets shall be constructed so that:
1.
The culvert is at least twelve (12) inches in diameter, with
a minimum of six (6) inches of surface cover over the culvert or as
determined by the City. Larger sizes may be required as determined
by the City.
2.
The construction of the driveway surface over the culvert shall
be level with the top of the curve to maintain storm water in the
street.
D.
The size of culverts under City streets shall be approved by the
City and shall be constructed of reinforced concrete pipe.
[Ord. No. 1250, 10-15-2002]
A.
Sidewalks shall be constructed on both sides of collector and arterial
streets.
B.
Sidewalks shall be located within the street right-of-way, one (1)
foot inside the right-of-way line. Sidewalk sub-grade shall be compacted
to ninety-five percent (95%) standard proctor ASTM D698. Sidewalks
shall be constructed of Portland concrete and shall be four (4) inches
thick. Expansion joints shall be provided every fifty (50) feet; contraction
joints at five (5) feet. Sidewalk widths shall be constructed to the
following applicable minimum standard:
C.
Whenever the Board of Aldermen finds that a means of pedestrian access is necessary from the subdivision to schools, parks, playgrounds, or other roads or facilities and that such access is not conveniently provided by sidewalks adjacent to the streets, the developer may be required to construct other walkway improvements to provide such access, in compliance with the requirements of the City of Branson West Subdivision Regulations, Article VIII, Required Public Improvements.
D.
All sidewalks shall be constructed up to each intersecting street
and wheelchair ramps shall be provided at intersections and other
major points of pedestrian flow. Where required, wheel chair ramps
and depressed curbs shall be constructed in accordance with the standards
of the Americans With Disabilities Act in effect at the time of construction.
E.
A grass planting strip shall be provided between the curb and the
sidewalk.
[Ord. No. 1250, 10-15-2002]
All utilities and improvements that are to be installed in street
rights-of-way shall be completed prior to construction of the street.
[Ord. No. 1250, 10-15-2002]
A.
All sub-grade, crushed limestone, bituminous plant mix base and bituminous
plant mix surface of all streets shall be installed and tested according
to the requirements of Stone County and the Missouri Department of
Transportation. Tests shall be performed at a minimum rate of one
(1) per one hundred (100) lineal feet of roadway or a minimum of two
(2) tests per day, whichever is more frequent. The City shall select
the location of these tests.
B.
Meeting these standards and the tests referred to in Subsection (A) shall be the responsibility and at the exclusive cost of the developer. The City shall employ the testing agency and the developer shall pay the costs.
C.
If any of the said tests are returned to the City showing a failure
by the developer to meet or surpass the standards established, then
the developer shall take such remedial measures as may be required
by the City.
D.
The developer shall give the City at least twenty-four (24) hours
notice prior to commencing the installation.
E.
Project Conditions.
1.
Environmental Limitations. Do not apply asphalt materials if
sub-grade is wet or excessively damp or if the following conditions
are not met:
a.
Prime and Tack Coats. Minimum surface temperature of sixty degrees
Fahrenheit (60° F.) fifteen and five-tenths degrees Celsius (15.5°
C.).
b.
Asphalt Base Course. Minimum surface temperature of forty-five
degrees Fahrenheit (40° F.) four degrees Celsius (4° C.) and
rising at time of placement.
c.
Asphalt Surface Course. Minimum surface temperature of sixty
degrees Fahrenheit (60° F.) fifteen and five-tenths degrees Celsius
(15.5° C.) at time of placement.
2.
Pavement-Marking Paint. Proceed with pavement marking only on
clean, dry surfaces and at a minimum ambient or surface temperature
of forty-five degrees Fahrenheit (40° F.) four degrees Celsius
(4° C.) for oil-based materials, fifty degrees Fahrenheit (50°
F.) ten degrees Celsius (10° C.) for water-based materials, and
not exceeding ninety-five degrees Fahrenheit (95° F.) thirty-five
degrees Celsius (35° C.).
F.
Examination.
1.
Verify that sub-grade is dry and in suitable condition to support
paving and imposed loads.
2.
Proof-roll subbase using heavy, pneumatic-tired rollers to locate
areas that are unstable or that require further compaction.
3.
Proceed with paving only after unsatisfactory conditions have
been corrected.
G.
Repairs.
1.
Leveling Course. Install and compact leveling course consisting
of hot-mix asphalt surface course to level sags and fill depressions
deeper than one (1) inch (25 mm) in existing pavements.
a.
Install leveling wedges in compacted lifts not exceeding three
(3) inches (75 mm) thick.
2.
Crack And Joint Filling. Remove existing joint filler material
from cracks or joints to a depth of one-fourth (1/4) inch (6 mm).
a.
Clean cracks and joints in existing hot-mix asphalt pavement.
b.
Use emulsified-asphalt slurry to seal cracks and joints less
than one-fourth (1/4) inch (6 mm) wide. Fill flush with surface of
existing pavement and remove excess.
c.
Use hot-applied joint sealant to seal cracks and joints more
than one-fourth (1/4) inch (6 mm) wide. Fill flush with surface of
existing pavement and remove excess.
H.
Surface Preparation.
1.
General. Immediately before placing asphalt materials, remove
loose and deleterious material from substrate surfaces. Ensure that
prepared sub-grade is ready to receive paving.
2.
Prime Coat. Apply uniformly over surface of compacted unbound-aggregate
base course at a rate of fifteen-hundredths (0.15) to fifty-hundredths
(0.50) gal./sq. yd. (0.7 to 2.3 L/sq. m). Apply enough material to
penetrate and seal but not flood surface. Allow prime coat to cure
for seventy-two (72) hours minimum.
a.
If prime coat is not entirely absorbed within twenty-four (24)
hours after application, spread sand over surface to blot excess asphalt.
Use enough sand to prevent pickup under traffic. Remove loose sand
by sweeping before pavement is placed and after volatiles have evaporated.
b.
Protect primed substrate from damage until ready to receive
paving.
3.
Tack Coat. Apply uniformly to surfaces of existing pavement
at a rate of five-hundredths (0.05) to fifteen-hundredths (0.15) gal./sq.yd.
(0.2 to 0.7 L/sq. m).
I.
Hot-Mix Asphalt Placing.
1.
Machine place hot-mix asphalt on prepared surface, spread uniformly,
and strike off. Place asphalt mix by hand to areas inaccessible to
equipment in a manner that prevents segregation of mix. Place each
course to required grade, cross section, and thickness when compacted.
a.
Place hot-mix asphalt base course in number of lifts and thicknesses
indicated.
b.
Place hot-mix asphalt surface course in single lift.
c.
Spread mix at minimum temperature of two hundred fifty degrees
Fahrenheit (250° F.) one hundred twenty-one degrees Celsius (121°
C.).
d.
Begin applying mix along centerline of crown for crowned sections
and on high side of one-way slopes, unless otherwise indicated.
e.
Regulate paver machine speed to obtain smooth, continuous surface
free of pulls and tears in asphalt-paving mat.
2.
Place paving in consecutive strips not less than ten (10) feet
(3 m) wide unless infill edge strips of a lesser width are required.
a.
After first strip has been placed and rolled, place succeeding
strips and extend rolling to overlap previous strips. Complete a section
of asphalt base course before placing asphalt surface course.
3.
Promptly correct surface irregularities in paving course behind
paver. Use suitable hand tools to remove excess material forming high
spots. Fill depressions with hot-mix asphalt to prevent segregation
of mix; use suitable hand tools to smooth surface.
J.
Joints.
1.
Construct joints to ensure a continuous bond between adjoining
paving sections. Construct joints free of depressions with same texture
and smoothness as other sections of hot-mix asphalt course.
a.
Clean contact surfaces and apply tack coat to joints.
b.
Offset longitudinal joints, in successive courses, a minimum
of six (6) inches (150 mm).
c.
Offset transverse joints, in successive courses, a minimum of
twenty-four (24) inches (600 mm).
d.
Construct transverse joints as described in AI MS-22, "Construction
of Hot Mix Asphalt Pavements."
e.
Compact joints as soon as hot-mix asphalt will bear roller weight
without excessive displacement.
f.
Compact asphalt at joints to a density within two percent (2%)
of specified course density.
K.
Compaction.
1.
General. Begin compaction as soon as placed hot-mix paving will
bear roller weight without excessive displacement. Compact hot-mix
paving with hot, hand tampers or vibratory-plate compactors in areas
inaccessible to rollers. Complete compaction before mix temperature
cools to one hundred eighty-five degrees Fahrenheit (185° F.)
eighty-five degrees Celsius (85° C.).
2.
Breakdown Rolling. Complete breakdown or initial rolling immediately
after rolling joints and outside edge. Examine surface immediately
after breakdown rolling for indicated crown, grade, and smoothness.
Correct lay down and rolling operations to comply with requirements.
3.
Intermediate Rolling. Begin intermediate rolling immediately
after breakdown rolling while hot-mix asphalt is still hot enough
to achieve specified density. Continue rolling until hot-mix asphalt
course has been uniformly compacted to the following density: Average
Density: ninety-six percent (96%) of reference laboratory density
according to AASHTO T 245, but not less than ninety-four percent (94%)
nor greater than one hundred percent (100%).
4.
Finish Rolling. Finish roll paved surfaces to remove roller
marks while hot-mix asphalt is still warm.
5.
Edge Shaping. While surface is being compacted and finished,
trim edges of pavement to proper alignment. Bevel edges while asphalt
is still hot; compact thoroughly.
6.
Repairs. Remove paved areas that are defective or contaminated
with foreign materials and replace with fresh, hot-mix asphalt. Compact
by rolling to specified density and surface smoothness.
7.
Protection. After final rolling, do not permit vehicular traffic
on pavement until it has cooled and hardened.
8.
Erect barricades to protect paving from traffic until mixture
has cooled enough not to become marked.
L.
M.
Field Quality Control.
1.
Thickness. In-place compacted thickness of hot-mix asphalt courses
will be determined according to ASTM D 3549.
2.
Surface Smoothness. Finished surface of each hot-mix asphalt
course will be tested for compliance with smoothness tolerances.
3.
In-Place Density. Testing agency will take samples of uncompacted
paving mixtures and compacted pavement according to ASTM D 979 or
AASHTO T 168.
a.
Reference maximum theoretical density will be determined by
averaging results from four (4) samples of hot-mix asphalt-paving
mixture delivered daily to site, prepared according to ASTM D 2041,
and compacted according to job-mix specifications.
b.
In-place density of compacted pavement will be determined by
testing core samples according to ASTM D 1188 or ASTM D 2726.
(1)
One (1) core sample will be taken for every one
thousand (1,000) sq. yd. (836 sq. m) or less of installed pavement,
with no fewer than three (3) cores taken.
(2)
Field density of in-place compacted pavement may
also be determined by nuclear method according to ASTM D 2950 and
correlated with ASTM D 1188 or ASTM D 2726.
4.
Remove and replace or install additional hot-mix asphalt where
test results or measurements indicate that it does not comply with
specified requirements.
