Effective with the December 2018 Letting 310 2019 Standard Spec ifications Section 525 Corrugated Aluminum Culverts
525.1 Description
1.This section describes providi ng corrugated aluminum culvert pipe and aluminum apron endwalls.
525.2 Materials
1.Furnish corrugated aluminum pipe and aluminum apron endwalls conforming to AASHTO M196.
525.3 Construction
1.Construct as specified in 520.3 .
2.If the plans show steel apron end walls with corrugated aluminu m pipe, install a suitable insulating material approximately 1/16 inch thick between the pipe and the endwall at the joint. The contractor may use one or more of the following: - Asphalt impregnated fabric. - A sheet plastic. - A rubber gasket. - Other non-degradable materi al of substantial strength.
525.4 Measurement
525.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 525.0100 - 0299 Culvert Pipe Co rrugated Aluminum (size) LF 525.0300 - 0399 Apron Endwalls fo r Culvert Pipe Aluminum (size) EACH
2.The department will pay for the wo rk under this section as spe cified in 520.5 as follows: - Pipe and apron endwalls bid items. - Cast-in-place concrete and alternate endwall installations. - Water for compacti on and dust control. - Excavation and foundation ba ckfill at depths greater than 6 i nches below the culvert. Effective with the December 2018 Letting 311 2019 Standard Spec ifications Section 526 Temporary Structures
526.1 Description
1.This section describes the design, construction, maintenance, and removal of a temporary structure of the width specified and of t he necessary waterway area.
526.2 Materials
1.Furnish materials conforming to part 5. The contractor may inc orporate used materials in the structure if they are sound and suitable for the purpose intended.
526.3 Construction
526.3.1 Permits and Coordination
1.The contractor shall obtain any necessary permits as specified in 107.3 and shall coordinate with the issuing agency in securing the permits and complying with the t erms of the permits.
526.3.2 Design
1.Provide plans, signed and sealed by a professional engineer re gistered in the state of Wisconsin, for all temporary structures. Submit one copy of plans to place on file. If the engineer r equests, submit 2 extra copies of plans for review before ordering materials or s tarting construction.
2.The temporary structure shall span the stream and have dimensi ons sufficient to not constrict stream flow during use. The basic desig n criteria shall provide for a 5-year frequency storm with 6 inches of backwater. The plans shall show the minimum bridge length between abutment sheet piling, and the resultant five-year frequency high water elevation. Determine t he minimum low superstructure elevation using the given high water elevation and considering local conditions. The structure shall have the minimum roadway width sp ecified in the special provisi ons as measured between the faces of the railings or curbs, and at right angles to the centerline . Provide vertical abutments designed to prevent spilling fill material i nto the stream. If building a temporary crossing over a stream or lake subject to boating use, constru ct it to provide horizontal and vertical clearance, as the jurisdictional agency may require, adequate for row boats and small power boat s.
3.Design, construct, and maintain temporary structures conformin g to AASHTO LRFD Bridge Construction Specifications, Article 3.5. Design rail and posts according to the WisDOT Bridge Manual, chapter 30.
526.3.3 Temporary Structures
2.Inspect temporary structures c onforming to the National Bridge Inspection Standards and the department’s structure inspection manual before opening to traf fic. Perform additional inspections, as the department’s structure inspection manual requires, based on structure type and time in service. Submit inspection reports on department form DT2007 to the engineer and electronic copies to the department's bureau of structure s maintenance section. Ensure t hat a department-certified active team leader, listed online in the department's highway structur es information system, performs the inspections.
3.Maintain temporary structures and approaches in place until no longer needed. Unless the engineer directs otherwise, completely re move and dispose of as specifie d in 203.3.4 . Contractor-furnished materials remain the contract or's property upon removal.
526.4 Measurement
1.The department will measure the Te mporary Structure bid items as a single lump sum for each structure accept ably completed.
526.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 526.0100 Temporary Structure (station) LS
2.Payment for the Temporary Structure bid items is full compensa tion for providing a temporary structure including design and construction; for backfilling with structure backfill; for maintaining; and for removing when no longer needed.
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 319–319 of 601. View official source ↗