Art. 609.02 Shoulder Inlets with Curb
609.02 General. All accumulated foreign material shall be removed from the
culvert. Hydraulically powered equipment, high-velocity jet cleaners, mechanically powered equipment, or other suitable equipment and methods may be used. The Contractor shall take precautions in the use of cleaning equipment to prevent additional damage to the existing condition of the culvert. Special care shall be taken at joints to prevent removal of the joint sealer. Foreign material removed from the culvert shall be disposed according to Article 202.03. Foreign material outside the limits of the culvert shall be removed according to Sections 201 and 202.
609.03 Method of Measurement. This work will be measured for payment in
feet (meters). The length measured will include end sections when present. Each barrel of multi-barrel culverts will be measured separately. Tree removal will be measured for payment according to Article 201.10. Earth excavation outside the limits of the culvert will be measured for payment according to Article 202.07.
609.04 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for PIPE CULVERTS TO BE CLEANED, of the size specified, or BOX CULVERTS TO BE CLEANED. Tree removal will be paid for according to Article 201.11. Earth excavation will be paid for according to Article 202.08. SECTION 610. SHOULDER INLETS WITH CURB
610.01 Description. This work shall consist of constructing shoulder inlets
with curb according to the details shown on the plans and as specified.
610.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Portland Cement Concrete (Note 1) ........................................................ 1020
b.Gray Iron Castings ............................................................................. 1006.14
c.Ductile Iron Castings .......................................................................... 1006.15
d.Structural Steel .................................................................................. 1006.04
e.Bedding Layer (Note 2) ....................................................... 1003.04, 1004.05
f.Precast Concrete Shoulder Inlet ............................................................. 1042
g.Reinforcement Bars and Welded Wire Reinforcement ...................... 1006.10
h.Grout .................................................................................................. 1024.01 Note 1. Inlet boxes shall be Class SI or Class PC concrete. Thrust blocks shall be Class SI concrete. Portland cement concrete slabs shall be Class PV concrete. Note 2. Gradation CA 6, CA 10, or CA 12 of D quality or better. Shoulder Inlets with Curb Art. 610.08 CONSTRUCTION REQUIREMENTS
610.03 Inlet Boxes. Cast-in-place inlet boxes shall be according to the
applicable portions of Section 503. For precast units, a 3 in. (75 mm) thick bedding layer shall be provided under the full length and width of the inlet box.
610.04 Frames and Grates. Cast iron frames and grates shall be used.
Grates shall seat firmly in the frame.
610.05 Pipe Drains. Pipe drains shall be according to the applicable portions
of Section 601, except the pipe material shall be limited to corrugated steel, aluminum alloy, or polyethylene (PE) pipe; a sand bedding will not be required; and corrugated steel and aluminum alloy pipe shall have 2 ft (600 mm) couplings. All pipe connections shall be watertight and all voids around the pipe drain entrance shall be sealed with grout both inside and outside the inlet box. The grout mixture shall be one part cement and two parts sand mixed with water. When steel or aluminum pipe is used, the end section shall be of the same material as the pipe. When polyethylene (PE) pipe is used, the end section shall be steel or aluminum.
610.06 Thrust Blocks. Thrust blocks will not be required when the difference
in elevation between the inlet box invert and pipe drain outfall is less than 3 ft (900 mm).
610.07 Portland Cement Concrete Slab. The portland cement concrete slab
shall be constructed according to the applicable portions of Section 483. Construction requirements for reinforcement bars shall be according to Section 508. When shoulder inlets are constructed in conjunction with new HMA shoulders, the HMA shoulder shall be constructed first and then sawed full depth and removed in the area of the portland cement concrete slab. The area of HMA shoulder removed for the construction of the portland cement concrete slab will be included in the area of HMA shoulders measured for payment. When the portland cement concrete slab is constructed in conjunction with new portland cement concrete shoulders, the slab may be constructed separately or monolithically with the shoulders at the option of the Contractor. The lengths of reinforcement bars used in the portland cement concrete slab shall be such as to accommodate the lengths, width, and spacing shown on the plans.
610.08 Shoulder Curb. When shoulder inlets are constructed in conjunction
with new HMA shoulders, a HMA curb shall be constructed according to Section 661. When shoulder inlets are constructed in conjunction with new portland cement concrete shoulders, a portland cement concrete shoulder curb shall be constructed according to Section 662. Art. 610.09 Treatment of Existing Field Tile Systems
610.09 Basis of Payment. Inlet boxes, complete in place, will be paid for at
the contract unit price per each for TYPE E INLET BOX, STANDARD 610001; TYPE F INLET BOX, STANDARD 610001; or TYPE G INLET BOX, STANDARD 610001. Pipe drains will be measured and paid for according to Section 601. End sections will be measured and paid for according to Section 542. Thrust blocks will be paid for at the contract unit price per each for CONCRETE THRUST BLOCKS. The portland cement concrete slab will not be paid for separately but shall be considered as included in the cost of the inlet box. Shoulder curb will be measured and paid for according to Section 661 or Section 662. SECTION 611. TREATMENT OF EXISTING FIELD TILE SYSTEMS
611.01 Description. This work shall consist of locating and treating existing
field tile systems within the limits of the right-of-way. CONSTRUCTION REQUIREMENTS
611.02 Locating Existing Field Tile. Existing field tile in those areas where
they are reported or suspected to exist shall be located by constructing an exploration trench according to Section 213.
611.03 Existing Field Tile Intercepted by Backslopes. Existing field tile
which are intercepted by the backslopes of the roadway after the ditches have been cut shall have the upstream ends tightly sealed with Class SI concrete or brick and mortar. If specified on the plans, the existing field tile within the limits of the pavement and paved shoulders shall be removed or crushed. Removing or crushing existing field tile shall be accomplished by constructing exploration trench along the line of the tile. All trenches cut for the purpose of removing or crushing existing tile within the limits of 2 ft (600 mm) outside the proposed pavement and paved shoulders shall be backfilled to the existing ground line in fill sections and to the elevation of the earth subgrade in cut sections with trench backfill according to Section 208 and compacted according to Article 550.07. Pipe drains, according to the applicable portions of Section 601, shall be used for the terminal 10 ft (3 m) of the existing field tile where it is outletted into the roadway ditch. The pipe drain shall be a single length section of a diameter equal to the diameter of the existing field tile plus 2 in. (50 mm), but not less than 6 in. (150 mm). Pipe drains outletting into a roadway ditch shall have a concrete headwall constructed at the outlet end according to the details shown on the plans. The
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 565–567 of 1,217. View official source ↗