Wisconsin WisDOT Standard Specifications (within FDM) — Section 601

Effective with the December 2018 Letting 322 2019 Standard Spec ifications Section 601 Concrete Curb and Gutter

601.1Description

(1)This section describes constructing concrete curb, gutter; or curb & gutter, with, or without

reinforcement.

601.2Materials

(1)Furnish materials conforming to the following:

Joint filler .................................................. ................................................................................................ 415.2.3

(2)Provide grade A, A2, A-FA, A-S , A-S2, A-T, A-IS, A-IP, or A-IT concrete conforming to 501 as modified

in 716. Provide QMP for class II ancillary concrete as specified in 716.

601.3Construction

601.3.1 General

(1)The engineer will inspect concre te built under 601 for transverse cracking as specified in 415.3.17 for

ancillary concrete. Repair cracke d concrete as the engineer dir ects. 601.3.2 Preparing the Foundation

(1)Prepare the foundation by excavating to the lines, grades, and cross-section the plans show and

required for placing concrete. Remove and replace soft or unsui table material with suitable material. Compact thoroughly and finish the foundation or material underlying the proposed curb, gutter, or curb & gutter to a firm, true surface . Thoroughly moisten the foundation immediately before placing the concrete.

(2)If the plans show, place aggregate base unde r curb, gutter, or curb & gutter, at the locations,

thickness, and section the plans show.

(3)Place granular subbase, if the plans show, or the special prov isions specify, under c urb, gutter, or curb

& gutter at the locations, thickn ess, and section called for.

(4)If the plans show, provide drain age for curb, gutter, or curb & gutter, foundation with underdrains,

constructed as specified for underdrains in 612, where the plans show or the engineer directs. 601.3.3 Forms

(1)Use wood or metal forms straight and with sufficient strength to resist springing, tipping, or other

displacement during depositing and consolidating the concrete. Use surfaced planks for wood forms at least 2-inch nominal thickness stock, except for sharply curved sections. Use metal forms of engineer- approved section. Use forms tha t are the full depth of the required curb, gutter, or curb & gutter sections and designed to allow secure fastening. If used, const ruct and shape face boards, so that their lower edge conforms to the lines and radius shown by the cross-section for the pertinent structure the plans show. For curves of 100-foot radius or less, use flexible or curved forms of proper radius. Clean and oil forms before placing concrete against them. 601.3.4 Placing Concrete

(1)The contractor may use a machi ne to place, form, and consolida ting curb, gutter, o r curb & gutter. The

resulting curb, gutter or curb & gutter shall equal or exceed that produced by forming.

(2)Deposit, consolidate, and slip form the concrete to the required section. If not using a slip form

process, deposit the concrete in the forms to the proper depths , spade against the forms, and consolidate thoroughly. Use mechanical vibration for concrete with slump less than 2 inches. After consolidation strike off, and finish to the required section.

(3)Unless constructed integrally w ith concrete pavement, securely anchor concrete curb, gutter, or curb &

gutter, to adjoining concrete pavement by placing specified tie bars if and as the plans show.

(4)Tie new work to existing conc rete pavement using tie bars driv en or epoxied into the existing concrete.

Use only cast-in-place tie bars in construction joints between pavement and curb, gutter, or curb & gutter placed under the contract.

(5)Form contraction joints by sawing or forming an induced plane of weakness at least 2 inches deep in

the curb, gutter, or curb & gu tter directly opposite constructi on or contraction joints in adjoining concrete pavement and at the requi red spacing in curb, gutter, or curb & gutter adjoining asphaltic pavement. Space joints between 6 feet and approximately 20 feet apart, as the engineer directs.

(6)Obtain the engineer's approval for the cut depth and the sawin g equipment. Saw as soon as possible

after the concrete sets suffici ently to prevent raveling during sawing, and before shrinkage cracking takes place. If this method resu lts in random c racking, then form an induced plane of weakness.

Effective with the December 2018 Letting 323 2019 Standard Spec ifications (7) If using separators, remove them as soon as possible after str iking off, consolidating, and setting sufficiently to protect the joint width and shape. If using fac e forms, remove them for finishing curb face and fillets as soon as the concrete retains its shape.

(8)Construct depressions in or revisions of the curb, in curb, or curb & gutter to accommodate curb ramps

and driveways at locations and as the plans show. 601.3.5 Finishing

(1)Float and brush the face surfa ces of the curb, or curb & gutte r. Unless specified otherwise, round the

back edge of curbs, the edge o f the gutter next to the pavement , and edges next to expansion joints or induced contraction joints, w ith a 1/4 inch radius edger. 601.3.6 Expansion Joints

(1)Place expansion joints in curb, gutter, or curb & gutter const ructed next to asphaltic pavement or

surfacing. Locate joints every where that tangent and radial cur b, or curb & gutter meet; on each side of every inlet 3 feet from the inlet, but no closer than 6 feet from another joint; and on tangent sections place between 6 feet and 300 feet.

(2)If constructing curb, gutter, or curb & gutter next to, or on, concrete pavement constructed with

expansion joints, then place expansion joints to match the expa nsion joint locations in the pavements.

(3)Set joints at right angles to the face and top of the curb, an d at right angles to the flow line and surface

of gutters. Use 3/4-inch wide joint filler conforming to 415.2.3 . 601.3.7 Protecting and Curing

(1)Protect as specified for concrete pavement in 415.3.14 .

(2)Cure the concrete as specified in 415.3.12.

601.3.8 Protecting in Cold Weather

(1)Conform to 501.3.9 for curb, gutter, or curb & gu tter placed during cold weather.

601.3.9 Integral Construction

(1)Unless specified otherwise in the contract, the contractor may construct curb, gutter, or curb & gutter

by slip forming integrally with the pavement. Construct to the section the plans show. Extend the transverse joints in the pavemen t through the integral curb, gu tter, or curb & gutter.

(2)Dowel bars are not required within the limits of the integral curb, gutter, or curb & gutter. A tied

longitudinal joint may be required to limit panel width to the maximum the plan details specify.

601.4Measurement

(1)The department will measure the curb, gutter, and curb & gutter bid items under this section by the

linear foot acceptably completed.

(2)The length measured equals the distance along the base of the curb face, or along the flow line of the

gutter. The department will measure continuously along a line e xtended across driveway and alley entrance returns or ramps.

(3)The department will not make dedu ctions in length for drainage structures installed in the curbing such

as drop inlets, etc.

(4)The department will measure excavation required for and perfor med during this work, if covered by a

bid item in the contract, as specified in the specifications. H owever, if the contract does not provide a bid item for excavation, it is incidental to the work.

601.5Payment

(1)The department will pay for measured quantities at the contrac t unit price under the following bid

items: ITEM NUMBER DESCRIPTION UNIT

601.0100 - 0149 Concrete Curb (type) LF

50 - 0199 Concrete Curb Integral (type) LF

601.0200 - 0249 Concrete Gutter (inch) LF

601.0300 - 0339 Concrete Curb & Gutter (inch) LF

40 - 0349 Concrete Curb & Gutter Integral (inch) LF

601.0400 - 0449 Concrete Curb & Gutter (inch) (type) LF

50 - 0499 Concrete Curb & Gutter Integral (inch) (type) LF

601.0500 - 0549 Concrete Curb & Gutter Integral (inch) Sloped ( inch) LF

50 - 0599 Concrete Curb & Gutter (inch) Sloped (inch) (ty pe) LF

Effective with the December 2018 Letting 324 2019 Standard Spec ifications 601.0600 Concrete Curb Pedestrian LF

(2)The department will adjust pay for crack repairs on concrete b uilt under 601 as specified in 416.5.2 for

ancillary concrete.

(3)Payment for the curb, gutter, and curb & gutter bid items unde r this section is full compensation for

foundation excavation and preparation; special construction required at driveway and alley entrances, or curb ramps; for providing ma terials, including concrete, exp ansion joints; for placing, finishing, protecting, and curing; for sawing joints; and for disposing of surplus excavation material, and restoring the work site. However, if the contract provides a bi d item for excavation, then the department will pay for excavation required for this work as sp ecified in the contract. Payment also includes providing tie bars in unhardened concrete. For tie bar s provided in concret e not placed under the contract, the department will pay separately under the Dril led Tie Bars bid item as specified in 416.5 .

Effective with the December 2018 Letting 325 2019 Standard Spec ifications Section 602 Concrete Sidewalks, Loading Zones, Safety Islands, and Steps

602.1Description

(1)This section describes constru cting sidewalks, loading zones, safety islands, and steps including

landings, of concrete, with or without reinforcement.

(2)Unless specifically specified in the contract, sidewalks or st eps built integral with and as a part of

bridges or culverts are not included.

602.2Materials

(1)Furnish materials conforming to the following:

Expansion jo int filler ........................................ .......................................................................................... 415.2.3

(2)Provide grade A, A2, A-FA, A-S , A-S2, A-T, A-IS, A-IP, or A-IT concrete conforming to 501 as modified

in 716. Provide QMP for class II ancillary concrete as specified in 716.

(3)Furnish cast iron detectable warning fields for curb ramps fro m the department's APL for the color

defined in the Curb Ramp Detectabl e Warning Field bid items.

602.3Construction

602.3.1 General

(1)The engineer will inspect concre te built under 602 for transverse cracking as specified in 415.3.17 for

ancillary concrete. Repair cracke d concrete as the engineer dir ects. 602.3.2 Sidewalks 602.3.2.1 Preparing the Foundation

(1)Form the foundation by excavating or filling to the required e levation of the conc rete bottom, or

subbase bottom if specified. Tamp or compact the foundation to ensure stability. In cuts, make the foundation wide enough to allow placing forms and performing co ncrete placement and finishing. On embankments, construct the found ation at least 2 feet wider tha n the proposed sidewalk and extend it at least one foot beyond ea ch end of the sidewalk.

(2)Unless specified otherwise, f ill holes, ruts, and other depressions in the foundation with materials

similar to those in the existing foundation. The contractor may use granular subbase or aggregate base.

(3)If the plans show, place granular subbase or aggregate base to the thickness and section the plans

show. 602.3.2.2 Forms

(1)Furnish and use wood or metal fo rms straight and of sufficient strength to resists pringing, tipping, or

other displacement during depositing and consolidating the conc rete. If using wood forms, provide surfaced planks, at least 2-inch nominal thickness stock except for sharply curved sections. If using metal forms, ensure they are t he engineer-approved section with a flat surface on top. Use forms as deep as the depth of the sidewalk. Securely stake, brace, and h old the forms firmly to the required line. Make the forms tight to pre vent mortar leakage. Clean and oil before placing concrete against them. 602.3.2.3 Placing and Finishing Concrete

(1)The engineer will chec k and approve the f oundation, forms, and reinforcement if required, before

placing the concrete. Place the concrete on a moist foundation, deposit it to the required depth, and consolidate sufficiently to bri ng the mortar to the surface, th en strike-off and finish to a true and even surface. Before the mortar sets , brush or lightly broom the surface. Before performi ng the final surface finish, check the sidewalk surface with a 10-foot straightedge, and correct areas that vary 1/4 inch from the testing edge by adding or removing concrete while the concrete is still plastic.

(2)If the engineer allows, the contra ctor may const ruct concrete sidewalks with suitable, engineer-

approved, slip-form equipment. The contractor may omit wood flo ating if the slip-form equipment produces a suitable finish.

(3)Construct curb ramps at the lo cations and conforming to the details and dimensions the plans show.

Embed detectable warning field arrays in plastic concrete confo rming to manufacturer-recommended procedures. Do not install on hardened concrete. Do not field cut plates except where the ends of radial arrays abut ramp edges. S mooth the edges of field cuts.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 331–333 of 601.

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550 Driven Piles

602 Concrete Sidewalks, Loading Zones, Safety Islands, and Steps