Art. 592.01 Bridge Washing outlet, a portion of the wall drain core equal to the cross section at the outlet shall be removed. Weep holes shall be accommodated by cutting a matching hole through the wall drain. An approved weep hole cover extending at least 4 in. (100 mm) from the edge(s) of the hole shall be securely fastened to the soil side of the wall drain by 3 in. (75 mm) wide plastic tape or contact adhesive applied continuously around its periphery.
591.04 Method of Measurement. This work will be measured for payment in
place and the area computed in square yards (square meters).
591.05 Basis of Payment. This work will be paid for at the contract unit price
per square yard (square meter) for GEOCOMPOSITE WALL DRAIN. SECTION 592. BRIDGE WASHING
592.01 Description. This work shall consist of washing the entire bridge,
including bridge deck, sidewalk, curbs, pier and abutment caps, all superstructure members, trusses, interior of truss members, flanges and webs of beams or girders, expansion joints, and drains to prevent deterioration of the structure.
592.02 Materials. Water shall be according to Section 1002.
592.03 Equipment. Washing equipment shall consist of power brooms, air
compressors, water tanks, water pumps with associated delivery hardware, and hand tools, to properly flush, clean, and remove all foreign material from the bridge structure. Other types of washing equipment may be used, subject to approval of the Engineer. Water pressure shall be sufficient to remove the accumulated material without damaging paint coverage of the structural steel. Other equipment may be necessary to gain access to areas designated for washing. It will be the Contractor's responsibility to determine and utilize whatever method and equipment best suits his/her operation to successfully wash the structure. This equipment shall be available to the inspector until final acceptance of the work. CONSTRUCTION REQUIREMENTS
592.04 General. All accumulated foreign material shall be removed from the
bridge. Special care shall be taken on connected parts, members below open joints and difficult to reach areas to remove all foreign material. All deck drains shall be flushed with water under pressure. Blockages in the deck drains shall be removed so that they will drain properly. The drain system may have to be taken apart to remove large blockages. Should they be taken apart, they shall be returned to their original configuration immediately after washing. Foreign material in the scuppers at the drains shall be either removed externally or flushed down the drain system. The area beneath all expansion devices shall be thoroughly flushed and washed with water under pressure. These areas include drain troughs beneath the expansion device and pier tops immediately adjacent to the expansion device. All abutment and bridge seats shall have foreign material removed by Controlled Low-Strength Material, Backfill Art. 593.03 compressed air, water under pressure, or hand sweeping. All structural steel and bearings shall be washed with water under pressure. All foreign debris shall be removed from truss members. All foreign material accumulated in the interior of members shall be removed. Areas which have been washed shall be free of all accumulate sand, gravel, dirt, bird nests and excrete, and other foreign materials. Free standing water shall be removed upon completion of washing. The Contractor shall provide adequate protection against worker inhalation of dust from his/her washing operations. The Contractor shall exercise due caution while washing those portions of the structures that are adjacent to or above parking lots, buildings, sidewalks, roadways, and railroad tracks. Dirt and debris deposited on adjacent property or redeposited on the bridge shall be removed to the satisfaction of the Engineer. The Contractor shall obtain his/her own source of water.
592.05 Traffic Control. The road shall be kept open to traffic according to
Article 701 — 17(d)(4).
592.06 Method of Measurement. This work will be measured for payment in
units of each, at the locations specified.
592.07 Basis of Payment. This work will be paid for at the contract unit price
per each for BRIDGE WASHING at the location specified. SECTION 593. CONTROLLED LOW-STRENGTH MATERIAL, BACKFILL
593.01 Description. This work shall consist of furnishing and placing
controlled low-strength material (CLSM) as backfill for pipe culverts, storm sewers, structure excavation, or other excavations as specified.
593.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Controlled Low-Strength Material (CLSM) .............................................. 1019 CONSTRUCTION REQUIREMENTS
593.03 General. The mix shall not be placed on frozen ground, in standing
water, or during wet weather conditions. Mixing and placing shall begin only when the air temperature is at least 35 °F (2 °C) and rising. At the time of placement, the material temperature shall be at least 40 °F (5 °C). Mixing and placing shall stop when the air temperature is 40 °F (5 °C) and falling. The mix shall not be exposed to freezing temperatures or wet weather conditions during the first 24 hours after placement.
Referenced in this section
Sections that cite this one
BRIDGE WASHING in other states
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 537–538 of 1,217. View official source ↗