All street pavements shall be designed in accordance with the following minimum standards:
A. Procedure: The thickness of the pavements for major collectors and arterials shall be determined in accordance with the current Illinois Department of Transportation "Manual for Structural Design of Portland Cement Concrete Pavement" and the "Manual of Instructions for the Structural Design of Bituminous Concrete Pavements". Design Standards shall be not less than for Class III roads and based on a 20 year pavement design. The above thickness determination procedures shall be followed unless required otherwise by a jurisdictional authority.
B. Minimum Design Criteria: The following are the minimum pavement requirements that will be required in the design and construction of all roadway pavements in the Village of Sugar Grove.
1. Pavement Standards:
a. Pavements shall be constructed of hot mix asphalt mixtures. The hot mix asphalt mixtures shall be designed, produced and constructed in accordance with IDOT Standard Specifications and IDOT District 1 special provisions. Portland cement concrete pavement designs are not prohibited and will be considered for some roadway designs if the developer so desires.
b. All roadways shall have concrete curb and gutter, type M-3.12 where driveway access is allowed in residential neighborhoods, and type B-6.12 in all other applications, unless recommended otherwise by the Village Engineer. The required cross section of these curb types is as shown in the Standard Details. Two (2) no. 4 steel reinforcing bars, twenty feet (20') in length, shall be installed centered on all trench crossings. Expansion joints, in accordance with the Standard Detail, shall be spaced per the Typical Expansion Joint Spacing Curb and Gutter Chart in the Standard Drawing, all points of curvature, five feet (5') each side of drainage structures and between separate pours. Minimum two inches (2") deep contraction joints shall be saw cut at minimum ten feet (10') intervals within twenty four (24) hours of curb placement. Contraction joints shall be sealed with a sealant to be approved by the Village. An approved spray-on curing compound with white fugitive dye shall be applied immediately after finishing of the curb. A concrete sealer, WR Meadows TIAH, or approved equal, shall be applied between seven (7) days and ten (10) days following curb installation. The curb shall be installed on a minimum of four inches (4") of the same aggregate base course used for the roadway construction. The compacted curb sub-grade shall be shaped parallel to the curb flow line and positively drained to the inlets and catch basins so that any water, if applied, would not pocket in this subgrade.
c. All rough grading of the roadway(s) shall be completed prior to construction of any underground utility with the exception of storm sewers and sanitary sewers.
d. In accordance with 605 Illinois Compiled Statutes 5/9-115.1 regarding the location of earthen berms in relation to the right- of-way, no part of a berm shall be located within ten feet (10') of the right-of-way line.
e. Pavement cross slope shall be two percent (2%) from the center of the road to the edge of the pavement.
f. Following installation of the asphalt surface course, hot poured joint sealer shall be applied to the joint between the finished pavement surface and the curb and gutter in accordance with section 451 of the IDOT Standard Specifications.
g. All roadways shall be constructed on a select compacted sub- grade, graded parallel to the finish surface.
h. Any street cut which is permitted by the Village shall be restored to like or better conditions and shall be acceptable to the Village Engineer.
2. Roadway Design Criteria:
a. The definitions of all proposed roadway classifications shall be consistent with table 12-11-3-2, "Minimum Standards For Street Design", of this section.
b. Table 12-11-3-2, "Minimum Standards For Street Design", of this section, sets forth the minimum design thickness for each roadway material for various road designations. For all categories in table 12-11-3-2 of this section, under Village jurisdiction, the hot-mix asphalt binder course hot mix surface course shall be an IDOT approved mix. The CA-6 base course shall be compacted to a minimum ninety five percent (95%) modified laboratory density in accordance with AASHTO T99 method A or C.
TABLE 12-11-3-2
MINIMUM STANDARDS FOR STREET DESIGN
Street Designation | Minimum ROW Width | Minimum Pavement Width (e-e) | Minimum Pavement Width (B-B) | Minimum Horizontal Centerline Radius | Minimum Tangent | Minimum Gradient | Maximum Gradient | Maximum ADT | Minimum Aggregate | Minimum Binder | Minimum Surface | |
Street Designation | Minimum ROW Width | Minimum Pavement Width (e-e) | Minimum Pavement Width (B-B) | Minimum Horizontal Centerline Radius | Minimum Tangent | Minimum Gradient | Maximum Gradient | Maximum ADT | Minimum Aggregate | Minimum Binder | Minimum Surface | |
Local | 66' | 28' | 31' | 200' | 50' | 0.50% | 7.00% | 1,000 | 12" | 2.5" | 1.5" | |
Minor collector | 80' | 24' | 27.16' | 300' | 100' | 0.50% | 5.00% | 2,500 | 12" (aggregate or modified soil layer) | 5" | 1.5" | |
Major collector | 80' | 36' | 39.16' | 300' | 100' | 0.50% | 5.00% | 3,500 | 12" (aggregate or modified soil layer) | 7.5" | 1.5" | |
Minor arterial | 100' | 62' | 65.16' | 500' | 200' | 0.50% | 5.00% | 10,000 | 12" (aggregate or modified soil layer) | 11" | 1.5" | |
OR&I | 100' | 50' | 53.16' | 500' | 200' | 0.50% | 5.00% | 3,500 | 12" (aggregate or modified soil layer) | 7" | 2.5" | |
Parking lots: | ||||||||||||
Primary automobile traffic | 8" | 2.75" | 1.5" | |||||||||
Significant truck traffic | 8" | 3" | 2.5" | |||||||||
Note: These are minimum pavement thicknesses. For any proposed facility above a local road, perform a pavement design.
(Ord. 2018-02-20, 2-20-2018)