[Ord. No. 3187 §1, 11-5-2014]
The location and width of all streets within the planning area
shall conform to the official City plans and provisions in this Division.
[Ord. No. 3187 §1, 11-5-2014]
The minimum right-of-way width of a street shall be as shown
on the official plans and if not shown on such plans, shall be not
less than the following, unless otherwise approved by the City Council:
|
Type of Thoroughfare
|
Feet
|
|---|---|
|
Primary or major street
|
80 to 120
|
|
Collector street
|
60
|
|
Minor street
|
50
|
|
Alley
|
20
|
[Ord. No. 3187 §1, 11-5-2014]
The minimum pavement widths of street types shall be not less
than the following, unless otherwise approved by the City Council:
|
Type of Thoroughfare
|
Feet
|
|---|---|
|
Primary or major street
|
48
|
|
Collector street
|
36
|
|
Minor street
|
26
|
|
Alley
|
20
|
[Ord. No. 3187 §1, 11-5-2014]
A.
Subdivisions that adjoin existing streets shall dedicate additional
rights-of-way if necessary to meet the minimum street width requirements
set forth in this Division, as follows:
1.
The entire additional right-of-way shall be provided where the
subdivision is on both sides of the existing street;
2.
When the subdivision is located on only one (1) side of the
existing street, one-half (1/2) of the required additional right-of-way
shall be provided. In no case shall the resulting right-of-way width
be less than fifty (50) feet.
[Ord. No. 3187 §1, 11-5-2014]
When a subdivision or portion thereof adjoins a primary or major
thoroughfare, no lot shall have direct access thereto. Such lots shall
be provided with a frontage on a marginal access street or street
other than a thoroughfare with adequate depth for screen planting
of the portion of any such lot contiguous with the primary or major
thoroughfare.
[Ord. No. 3187 §1, 11-5-2014]
Grades on primary, major and collector streets shall not exceed six percent (6%). Grades on other streets or alleys shall not exceed ten percent (10%). Grades on any street in the Ellisville Business Park as defined by Chapter 400 (Zoning) shall not exceed nine percent (9%).
[Ord. No. 3187 §1, 11-5-2014]
Where a deflection angle of more than ten degrees (10°)
in the alignment of a street occurs, a curve of reasonably long radius
shall be introduced; on streets sixty (60) or more feet in width,
the center-line radius of curvature shall be not less than three hundred
(300) feet; on other streets, not less than eighty (80) feet.
[Ord. No. 3187 §1, 11-5-2014]
All changes in street or road grades shall be connected by vertical
curves having a radius that meets the standards of performance recommended
for such situations by registered professional civil engineers. If
topographic conditions warrant additional information, in their opinion,
members of the Planning Commission may require center-line profiles
to be drawn of all streets showing natural and finished grades at
a scale of at least one (1) inch equals one hundred (100) feet horizontal
and one (1) inch equals twenty (20) feet vertical.
[Ord. No. 3187 §1, 11-5-2014]
Street intersections shall be as nearly at right angles as is
possible, and no intersection shall be at any angle of less than seventy
degrees (70°).
[Ord. No. 3187 §1, 11-5-2014]
Street jogs with center-line offsets of less than one hundred
twenty-five (125) feet shall not be allowed.
[Ord. No. 3187 §1, 11-5-2014]
A.
The length of minor residential streets that are also dead-end streets
shall be as determined by the Planning and Zoning Commission to be
suitable for the intended use. They shall be provided at the closed
end with a turnaround having a minimum right-of-way diameter of one
hundred (100) feet with a minimum paving diameter of eighty (80) feet.
B.
Provisions shall be made for the proper projection of streets into
adjoining unsubdivided land. Where it is necessary to provide for
street access to adjoining property not yet subdivided, proposed streets
shall be extended by dedication to the boundary of such unsubdivided
property. Such temporary dead-end streets shall be provided with a
temporary turnaround having a roadway diameter of at least eighty
(80) feet wherever lots face upon such a street.
[Ord. No. 3187 §1, 11-5-2014]
A proposed street which is in alignment with and joins an existing
and named street shall bear the name of the existing street. In no
case shall the proposed name of a street duplicate the name of an
existing street within the area covered by this Division. The use
of the suffix "street," "avenue," "boulevard," "driveway," "place"
or "court" or similar description shall not be a distinction sufficient
to constitute compliance with this Section.
[Ord. No. 3187 §1, 11-5-2014]
Alleys or other off-street loading spaces shall be provided
to the rear or side of all lots to be used for commercial or industrial
uses.
A.
Rigid Pavement.
1.
Provide an inspected and certified subgrade for the pavement
profile.
2.
Provide an approved woven geotextile fabric on the prepared base that extends a minimum of one (1) foot beyond the concrete pavement edge and wrapped around the bottom layer of rock specified in Subsection (A)(3) and back under the concrete pavement a minimum of one (1) foot.
3.
Provide four (4) inches of one (1) inch clean washed rock (MSD-1) extending one (1) foot outside the concrete pavement edge and wrapped by the prepared woven geotextile fabric as specified in Subsection (A)(2). This layer of rock shall be integral to all underdrains.
6.
Provide seven (7) inches of PCC pavement St. Louis County Class
B-1 (4,000 psi) concrete on the specified base. Pavement shall include
continuous St. Louis County Type B longitudinal joints with epoxy
coated bars.
7.
Provide St. Louis County Type A or Type AA expansion joints
as determined by the City for type and location.
8.
Note, rigid pavements intersecting the rigid street pavements
shall have a one and three quarter (1 3/4) inch thick HDPE full
depth and width expansion joint as a minimum separation.
B.
Flexible Pavement.
1.
Provide an inspected and certified subgrade for the pavement
profile.
2.
Provide an approved woven geotextile fabric on the prepared base that extends a minimum of one (1) foot beyond the back of the concrete curb and gutter edge and wrapped around the bottom layer of rock specified in Subsection (B)(3) and back under the concrete curb and gutter a minimum of one (1) foot.
3.
Provide four (4) inches of one (1) inch clean washed rock (MSD-1) extending one (1) foot outside the concrete curb and gutter edge and wrapped by the prepared woven geotextile fabric as specified in Subsection (B)(2). This layer of rock shall be integral to all underdrains.
6.
Provide a non-reinforced PCC gutter profile nine (9) inches
thick plus a curb twelve (12) inches thick at the back of curb by
twenty-four (24) inches wide with St. Louis County Class B-1 (4,000
psi) concrete. Provide one half (1/2) inch thick HDPE full depth and
width expansion joint for every two hundred (200) running feet of
curb and gutter.
7.
Provide two equal lifts totaling eight (8) inches of bituminous
concrete base pavement (St. Louis County Type X) on the specified
base.
9.
Provide one (1) inch of bituminous concrete wearing surface
(MoDOT Type BP-1). Note the wearing surface shall not be placed until
all construction within the development is substantially complete.
[1]
Editor’s Note: Ord. No. 3249 also changed the title
of this Section from "Pavement Requirements for All City Streets Other
Than Primary/Major Access Streets" to "Pavement Requirements for All
City Streets Other Than Primary, Major and Collector Streets."
A.
Rigid Pavement.
1.
Provide an inspected and certified subgrade for the pavement
profile.
2.
Provide an approved woven geotextile fabric on the prepared base that extends a minimum of one (1) foot beyond the concrete pavement edge and wrapped around the bottom layer of rock specified in Subsection (A)(3) and back under the concrete pavement a minimum of one (1) foot.
3.
Provide four (4) inches of one (1) inch clean washed rock (MSD-1) extending one (1) foot outside the concrete pavement edge and wrapped by the prepared woven geotextile fabric as specified in Subsection (A)(2). This layer of rock shall be integral to all underdrains.
6.
Provide eight (8) inches of PCC pavement St. Louis County Class
B-1 (4,000 psi) concrete on the specified base. Pavement shall include
continuous St. Louis County Type B longitudinal joints with epoxy
coated bars and St. Louis County Type G transverse joints with epoxy
coated bars.
7.
Provide St. Louis County Type AA expansion joints as determined
by the City for location.
8.
Note, rigid pavements intersecting the rigid street pavements
shall have a one and three quarter (1 3/4) inch thick HDPE full
depth and width expansion joint as a minimum separation.
B.
Flexible Pavement.
1.
Provide an inspected and certified subgrade for the pavement
profile.
2.
Provide an approved woven geotextile fabric on the prepared base that extends a minimum of one (1) foot beyond the back of the concrete curb and gutter edge and wrapped around the bottom layer of rock specified in Subsection (B)(3) and back under the concrete curb and gutter a minimum of one (1) foot.
3.
Provide four (4) inches of one (1) inch clean washed rock (MSD-1) extending one (1) foot outside the concrete curb and gutter edge and wrapped by the prepared woven geotextile fabric as specified in Subsection (B)(2). This layer of rock shall be integral to all underdrains.
6.
Provide a non-reinforced PCC gutter profile twelve (12) inches
thick and a curb to be determined by the City of six (6) inches (eighteen
(18) inches thick at the back of curb) or a three (3) inch rolled
curb (fifteen (15) inches thick at the back of curb) by twenty-four
(24) inches wide with St. Louis County Class B-1 (4,000 psi) concrete.
Provide one-half (1 1/2) inch thick HDPE full depth and width
expansion joint for every two hundred (200) running feet of curb and
gutter.
7.
Provide three (3) equal lifts totaling eleven (11) inches of
bituminous concrete base pavement (St. Louis County Type X) on the
specified base.
9.
Provide one (1) inch of bituminous concrete wearing surface
(MoDOT Type BP-1). Note the wearing surface shall not be placed until
all construction within the development is substantially complete.
[1]
Editor’s Note: Ord. No. 3249 also changed the title
of this Section from "Pavement Requirements for Primary/Major Access
Streets" to "Pavement Requirements for All Primary, Major and Collector
Streets."
[Ord. No. 3187 §1, 11-5-2014]
An underdrain shall be provided at all street inlets extending
transversely across the full width of the pavement, per City specifications.
[Ord. No. 3187 §1, 11-5-2014; Ord. No. 3342 §
1, 8-16-2017]
There shall be no private streets platted in any subdivision.
There shall be no reserve strips controlling access to streets, except
where the control of such strips is definitely placed with the City
under conditions approved by the Council. Provisions of this Section
do not apply to properties with private streets annexed by the City
after the effective date of this Division.
[Ord. No. 3342 § 2, 8-16-2017]
Every subdivided lot must have frontage on a public street.
