Effective with the December 2018 Letting 308 2019 Standard Spec ifications Section 522 Reinforced Concrete Culverts
522.1 Description
1.This section describes providing reinforced concrete culvert i ncluding pipe, cattle pass, and concrete apron endwalls.
522.2 Materials
1.Furnish circular pipe, cattle pass, and circular apron endwall s conforming to AASHTO M170 and as follows: - Pipe: furnish the cl ass of pipe the bi d item indicates. - Cattle pass: use class III reinforced concrete pipe. Construc t walkways as the plans show using cast-in- place grade A, A-FA, A-S, A-T, A -IS, A-IP, or A-IT concrete conforming to 501 as modified in 716. For walkway concrete, provide QMP fo r class III ancillary concrete as specified in 716. - Apron endwalls: conform to class II.
2.Furnish horizontal elliptical pipe and elliptical apron endwal ls conforming to AASHTO M207 and as follows: - Pipe: furnish the cl ass of pipe the bi d item indicates. - Apron endwalls: conform to class HE-II.
3.Manufacture precast reinforced concrete pipe, cattle pass, and apron endwalls in a plant listed under precast concrete fabricators on the department's APL . Conform to the spec ified AASHTO standard materials requirements except as follows: - Use concrete with 565 pounds or more cementitio us material pe r cubic yard. - The contractor may use cement conforming to 501.2.1 or may substitute for portl and cement a t the time of batching conforming to 501.2.6 for fly ash, 501.2.7 for slag, or 501.2.8 for other pozzolans. In either case the maximum total supplementary cementitious content is limited to 30 percent of the to tal cementitious content by weight.
4.Furnish material for joint connections conforming to 520.2.6 .
522.3 Construction
522.4 Measurement
522.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 522.0100 - 0599 Culvert Pipe Reinforced Concrete (class) (size) L F 522.1000 - 1199 Apron Endwalls fo r Culvert Pipe Reinforced Conc rete (si ze) EACH 522.1500 Pipe Cattle Pass Reinforced Concrete LF 522.2300 - 2499 Culvert Pipe Rein forced Concrete Horizontal Ell iptical (class) (size) LF 522.2600 - 2699 Apron Endwalls fo r Culvert Pipe Reinforced Concrete Horizontal Elliptical (size) EACH
2.The department will pay for the wo rk under this section as spe cified in 520.5 as follows: - Pipe, cattle pass, and apr on endwalls bid items. - Cast-in-place concrete and alte rnate 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 309 2019 Standard Spec ifications Section 524 Salvaged Culverts
524.1 Description
1.This section describes excava ting and removing existing culver t pipe, including pipe arch, and pipe cattle pass, and apron endwalls; and transporting, cleaning, and reinstalling at new locations the plans show or the engineer directs.
524.2 Materials
1.Use existing materials. Use new material conforming to 520.2.6 for joint connections.
524.3 Construction
1.If existing pipe culverts and o r apron endwalls , are designate d for salvage and use in the new work, remove them from the existing lo cation, clean, handle, transpor t to, and install at the new location without damaging the pipe culve rt. Replace any material damaged by the contractor.
2.Construct pipe, cattle pass, and apron endwalls at the new loc ation as specified in 520.3 .
524.4 Measurement
524.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 524.0100 - 0299 Culvert P ipe Salvaged (size) LF 524.0600 - 0799 Apron Endwalls fo r Culvert Pipe Salvaged (size) EACH 524.0800 Pipe Cattle Pass Salvaged LF 524.0900 Pipe Arch Salvaged Co rrugated Steel (rise x span) LF
2.Payment for the LF bid items und er this section is full compen sation for excavating and removing pipe from existing location; for exca vating and associated dewaterin g; for placing pipe, including furnishing any necessary new ban ds; for backfilling; for maintaining tempo rary drainage; for replacing damaged installations; and for providi ng geotextile joint wrap and join t ties.
3.Payment for the Apron Endwalls for Culvert Pipe Salvaged bid items is full compensation for excavating and removing apron endwalls from existing location; for cleaning and installing apron endwalls, including bands or connectors; fo r excavating, includ ing forming bed; for pr oviding geotextile joint wrap and joint ti es; and for backfilling.
4.Payment for the 524 bid items also includes water for compacti on and dust control, except if the contract contains the Water bid item, the department will pay s eparately for water under 624.5 .
5.The department will pay separately for excavating unsuitable m aterial and backfilli ng as specified in
520.3.2 1(10) as extra work.
Referenced in this section
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 317–317 of 601. View official source ↗