(A) Primary thoroughfares: In accordance with Illinois department of transportation (IDOT) "Minimum Standard For Street Design".
(B) Secondary thoroughfares: In accordance with Illinois department of transportation (IDOT) "Minimum Standard For Street Design".
(C) Streets: In accordance with Illinois department of transportation (IDOT) "Minimum Standard For Street Design".
(D) Combination concrete curb and gutter:
1. The material shall be class X Portland cement concrete per "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
2. The curb and gutter shall conform to IDOT type M3.12 for minor streets and cul-de-sacs in residential areas. The curb and gutter type in other areas and street classifications shall be as specified by the plan commission and city engineer.
(E) Concrete valley gutter:
1. The material shall be class X Portland cement concrete per "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
2. The curb and gutter shall conform to IDOT type M3.12, depressed curb. (Ord. 455, 4-21-1997)
(F) Pavement design:
1. Design of the pavement structure shall conform to the Illinois department of transportation (IDOT) design manual. The design period shall be twenty (20) years and the estimated ADT shall be subject to the approval of the city engineer. The design shall meet the following minimum requirements:
(a) Publicly maintained - residential: The base course shall be CA-6 crushed stone. Minimum thickness shall be ten inches (10"). The surface shall be bituminous concrete binder and surface courses. The binder course shall be two and one-half inches (21/2") in thickness and the surface course shall be one and one- half inches (11/2") in thickness. The total asphalt surfacing shall total four inches (4").
(b) Publicly maintained - commercial: The base course shall be CA-6 crushed stone. Minimum thickness shall be six inches (6"). The surfacing shall be bituminous base course and bituminous concrete binder and surface courses. The bituminous base course shall be five inches (5") in thickness. The binder course shall be two and one-half inches (21/2") in thickness, and the surface course shall be one and one-half inches (11/2") in thickness. The total asphalt surfacing shall total nine inches (9").
(c) Truck route: Truck route pavement shall be one and one-half inches (11/2") bituminous surface course, over two and one-half inches (21/2") bituminous binder course, over seven inches (7") bituminous base course, over six inches (6") CA-06 base course type B. The total asphalt thickness shall be eleven inches (11").
(d) Alleys: Alley pavement design shall conform to the design for publicly maintained residential streets.
(e) Privately maintained - off street parking: The subdivider may select one of the following options for this pavement structure:
(1) The base course shall be CA-6 crushed stone. Minimum thickness shall be ten inches (10"). The surfacing shall be bituminous concrete binder and surface courses. The binder course shall be one and one-half inches (11/2") in thickness, and the surface course shall be one and one-half inches (11/2") in thickness. The total asphalt surfacing shall total three inches (3");
(2) The base course shall be CA-6 crushed stone. Thickness shall be four inches (4"). The surface shall be class X concrete with welded wire mesh six by six (6 x 6) and shall be eight inches (8") in thickness. (Ord. 562, 9-7-2004)
(G) Pavement base:
1. Flexible pavement: The materials and methods of construction shall conform to the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
2. Rigid pavement: Not applicable.
(H) Surface course: The materials and methods of construction shall conform to the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
(I) Driveways: The materials and methods of construction shall conform to the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
The subdivider may select one of the following options for driveway construction:
1. Material shall be base course consisting of IDOT gradation CA-6 or CA-10, nine inches (9") in thickness, and surface course consisting of bituminous concrete surface course two and one-half inches (21/2") in thickness (asphalt) (4 inches in thickness for commercial, industrial or school) (all thicknesses measured with materials in place compacted);
2. Material shall be base course consisting of IDOT gradation CA-6 or CA-10, four inches (4") in thickness and class X Portland cement concrete, six inches (6") in thickness (8 inches for commercial, industrial or school), reinforced with six inches by six inches (6" x 6") 10/10 welded wire paving mesh (all thicknesses measured with materials in place, compacted);
Any alternate materials in addition to those described above shall be presented to the city engineer for his approval prior to inclusion in the construction drawings and specifications. No bituminous surface treatment (oil and chip surfaces) will be allowed.
3. All curb cuts necessary for driveways accessing on city streets shall be completed as follows:
The complete existing combination concrete curb and gutter shall be removed and then replaced with a new combination concrete curb and gutter (depressed) according to the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition. At no time shall any portion of the combination concrete curb and gutter be poured as an integral part of the driveway. A joint using three-fourths inch (3/4") preformed bituminous expansion joint filler shall be provided between the back of the curb and the driveway portion.
4. Driveways may be finished off to match the top of the existing curb without a curb cut, if and only if such curb is modified M3:12 or at a height less than three inches (3") measured up from the gutter pan flow line.
All gutter pans or gutters shall be kept clear of all materials. No concrete, asphalt or any other material will be permitted in the gutter pan. This prohibitive restriction also applies to pipes or any other device placed in the gutter pans to provide a better approach to the driveway.
No driveway shall be constructed at a grade that exceeds eight percent (8%) from the garage to the street unless the city engineer specifically approves a greater slope. (Ord. 552, 3-15-2004)
(J) Sidewalks: Sidewalks are to be located on the right of way, the nearest edge being one foot (1') from the property line. The sidewalks are to be five inches (5") higher than the curb on the side close to the curb, and six inches (6") higher than the curb on the side far from the curb.
(K) Public sidewalks intersecting with street curb and gutter: The back of the curb at this point of intersection shall be depressed and shall not exceed one and one-half inches (11/2") elevation over the flow line of the gutter pan.
The materials and methods of construction shall conform to the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction", latest edition.
1. Material shall be base course consisting of IDOT gradation CA-6 or CA-10, four inches (4") in thickness, and class X Portland cement concrete, five inches (5") in thickness. The thickness of the concrete shall be increased to six inches (6") where the sidewalk crosses a driveway. (All thicknesses measured with materials in place, and compacted, where applicable.);
2. Width shall be five feet (5') except where the plan commission or city engineer deem a wider sidewalk necessary.
(L) Pedestrian walkways: Pedestrian walkway improvements shall conform to the specifications for sidewalks, including the width requirement. The sidewalk shall generally be centered in the pedestrian walkway.
(M) French drains: Minimum pipe diameter shall be eight inches (8") laid at a minimum slope of four-tenths percent (0.4%). Where larger pipe sizes are necessary, the minimum slope shall conform to IEPA recommendations. These drains shall be perforated drain tile, except in special cases where the city engineer requires these drain pipes to be solid wall.
1. The french drain tiles shall be provided an easement separate from the public utilities easement provided for gas, electric, or telephone, etc.
2. The material for the french drain tile shall be culvert quality field tile or ABS N-12 storm sewer pipe or equivalent. In areas where the minimum slope cannot be maintained, ABS N-12 pipe shall be used at a slope approved by the city engineer.
3. The french drain tile, where perforated tile is utilized, shall have bedding, and backfill to six inches (6") over the top of the pipe, of one inch (1") clean stone.
4. An inlet shall be installed at all locations where the pipe changes direction, changes pipe size, at a multiple pipe connection, or an endpoint.
5. A six inch (6") magnetic locator strip shall be installed above all drain pipes and extended into the inlets, to aid in future efforts to determine pipe location.
(N) Storm sewers: All streets shall be provided with inlets and underground drainage facilities having a design capacity adequate to carry off surface water falling or coming on the streets in a 10-year storm as that term is used in publications of the state water survey, division of the department of energy and natural resources of the state of Illinois. Sufficient inlets shall be provided so that no pavement is designed to allow water to drain across the crown of an intersection street or is carried in the gutter for more than four hundred feet (400'). Storm sewer systems shall be constructed with bell and spigot or tongue and groove pipe of such type as required to provide adequate strength for the load to be carried.
1. Pipe materials for any storm sewer which crosses public streets shall be reinforced concrete pipe of appropriate class for the conditions under which it will be installed or ductile iron. Storm sewers in other areas may be reinforced concrete pipe, or HDPE (N-12 or equal) pipe with smooth interior walls, of the appropriate class for the condition under which it will be installed.
2. Manholes shall be precast concrete, with plastic steps, and poured inverts. All frames and lids shall be heavy duty with a lid measuring twenty two and three-fourths inches (223/4") diameter and embossed "storm sewer".
3. Detention pond improvements shall include the following in addition to the requirements in title 4, chapter 5 of this code:
(a) Underdrains: Underdrains with an inlet shall be provided at all storm sewer outfalls into a detention pond to accommodate residual storm flows.
(b) End Sections: End sections shall be installed at all storm sewer outfalls into a detention pond. The end section shall be precast concrete.
(c) Concrete Swales: A concrete paved swale or paved ditch may be required by the plan commission and the city council in detention ponds where the slope of the bottom is less than one percent (1%).
(d) Turf Improvements: Turf improvements shall include installation of a minimum of four inches (4") of topsoil, fertilizer, and seeding. Final acceptance of the improvements will be withheld until the turf is established.
(O) Sanitary sewers: All sanitary sewers shall be located in the center of the roadway. Trench backfill of IDOT CA-7 shall be used from the initial backfill to the base course of the roadway. Service laterals shall receive the same treatment and extend to serve the lots at both sides of the street. The ends of the service laterals shall be watertight capped and timbers extended to the surface for location purposes.
1. Pipe materials shall be PVC SDR 35, bell and spigot type, or approved alternate, and shall be bedded and initial backfilled with IDOT gradation CA-07 in accordance with the "Standard Specifications For Water And Sewer Main Construction", latest edition.
2. Pipe testing shall be performed in accordance with Illinois environmental protection agency (IEPA). The pipe for all sanitary sewer mains shall be deflection tested and air tested. All sections shall be air tested to detect leakages.
3. Sanitary services may be installed either at the time of installation of the sanitary sewer main, or they may be cut in using a PVC saddle, attached to the main using stainless steel straps and utilizing an elastomeric gasket. The saddle shall be silicone caulked to assure watertightness of the system. Service pipe for each service shall be PVC SDR 35, push-on type with elastomeric gaskets. No glue joints between the sanitary sewer main and the house will be allowed.
4. Sanitary sewer manholes shall be precast concrete with plastic steps, A-LOK or approved equal cast in place pipe gaskets at all pipe entrances, and poured concrete inverts. All sanitary sewer manhole frames and lids shall be gasketed with a lid measuring twenty two and three-fourths inches (223/4") diameter and "sanitary sewer" embossed in the lid. Sanitary sewer manholes shall be installed in accordance with the "Standard Specifications For Water And Sewer Main Construction", latest edition.
(P) Water main: Water mains shall be located in the roadway approximately four feet (4') in from either edge of pavement. The original material excavated from the trench shall be reinstalled in lifts not to exceed eight inches (8") loose measure and each lift compacted to one hundred percent (100%) of a standard proctor (ASTM D-697). Water main improvements shall conform to the following:
1. Water main disinfection shall be accomplished by gas chlorination in accordance with Illinois environmental protection agency (IEPA) requirements;
2. Pressure testing shall be accomplished at the same time as disinfection, with pressure reaching one hundred fifty (150) psi for one hour;
3. Water main pipe shall be D.I.P., class 52, with an 8 mil polywrap encasement, and be of the gasketed bell and spigot type. The water main shall have two (2) brass wedges for signal conductivity at each push-on joint. Fittings shall be as follows:
(a) Tapping sleeves shall be Mueller mechanical joint sleeve H-615 for all sizes;
(b) Tapping valves shall be Mueller super-seat resilient seat NRS tapping valve with M.J. X. FL. Ends H-687 mechanical joint X flanged end;
(c) System valves shall be Mueller super-seat NRS valve with M.J. X M.J. Ends, A-2370-20.
4. System valves shall be manufactured by Mueller and shall be as follows:
(a) System valves for eight inches (8") or smaller shall be gate valves;
(b) System valves for larger than eight inches (8") shall be butterfly valves.
5. Any end of main extension shall have a system valve and one twenty foot (20') length of pipe with a fire hydrant provided at an unlooped end of all mains.
6. System valve boxes shall be Tyler pipe item 664-S which extend from thirty nine (39) to sixty inches (60"), top section length of twenty six inches (26"), and bottom section length of thirty six inches (36"), with the lid marked "water".
7. Fire hydrants shall be Mueller A423 Super Centurion 200, five and one-fourth inches (51/4") main valve opening, three-way (2 hose nozzles and 1 pumper nozzle) and shall have a five and one- half foot (51/2') barrel section to bury line. Hydrants shall be connected to the main utilizing anchor couplings as required by the city superintendent of public works.
8. Blow offs shall not be allowed. A fire hydrant shall be provided at the end of main extensions for flushing purposes. Where a hydrant is not designed by overall plan to be located at the end of a main, it shall be relocated to the next advance location with the next subdivision addition.
9. Services shall be as follows:
(a) Corporation stops shall be Mueller 110 compress connection H-15008 for one inch (1") and 10500 series double strap saddle for one and one-half inches (11/2") or two inches (2");
(b) Shut off valve shall be Mueller 110 compression H-15042 for three-fourths inch (3/4") or one inch (1"), or H-15209 for one and one-half inches (11/2") or two inches (2");
(c) Service shut off valve box shall be Mueller H 10314 adjustable curb box, extending from forty one (41) to sixty four inches (64"), with an operating rod installed on the curb stop to within twelve inches (12") of the curb box lid. The lid shall have a brass plug and be embossed "water";
(d) Service pipe shall be minimum diameter of one inch (1"), type K copper, bedded and initial backfilled in sand.
(Q) Street name signs: At all intersections or per the plan commission. (Ord. 455, 4-21-1997)