Wisconsin WisDOT Standard Specifications (within FDM) — Section 603

Effective with the December 2018 Letting 329 2019 Standard Spec ifications Section 603 Concrete Barrier

603.1Description

(1)This section describes providi ng permanent and temporary concr ete barrier and transitions.

603.2Materials

(1)Furnish materials conforming to the following:

Joint filler .................................................. ................................................................................................ 415.2.3 Steel rail, cap ra il, and fittings ............................ .......................................................................................... 614.2 Delineator brackets and delineator ref lectors ................. ............................................................................. 633.2

(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. For cast-in-place barrier, p rovide QMP for class II ancillary concrete as specified in 716.

(3)Provide epoxy-coated steel rei nforcement for permanent concrete barrier as specified for coated high-

strength bar steel reinforcement in 505.2.4 .

(4)Manufacturer precast barrier in a plant listed under precast c oncrete fabricators on the department's

APL. Provide an ordinary surface finish as specified in 502.3.7.2 on exposed precast surfaces unless the forms provide a suitable fi nish. Cure precast barrier as sp ecified in 415.3.12.2 using a curing compound conforming to 501.2.9 . The contractor may steam cure precast barrier, if the enginee r approves the temperature and procedure. Apply curing compound after steaming.

(5)Furnish adhesive for concrete anchors conforming to ICC-ES AC3 08 and capable of providing the

strength the plans show. Provide the adhesive manufacturer’s in stallation instructions to the engineer before installing anchors.

603.3Construction

603.3.1 Permanent Barrier 603.3.1.1 General

(1)Construct permanent barrier of t he type the bid item indicates. Encoded types are defined as follows:

TABLE 603-1 CONCRETE BARRIER BID ITEM ENCODING

BARRIER BID ITEM TYPES DESCRIPTION CODE

SHAPE New Jersey shape NJ F shape F Vertical V example: Concrete Barrier Type S36A is a 36" single sloped median retaining wall barrier Single slope barrierS TRANSITION BID ITEM TYPES CLASS Standard barrier section none Median retaining wall A Short barrier section B Roadside retaining wall C example: Concrete Barrier Transition Type F32SF to S32 is a transition from 32" singl e faced F barrier to a 32" single sloped barrier FACES Double faced barrier DF Single faced barrier SF

(2)Excavate for barrier footings a s the plans show. Where new bar rier penetrates ex isting pavement, saw

out the pavement full depth in the r equired excavation area. Ba ckfill, dispose of excess material, and restore the grade after placing footings.

(3)Cast permanent barrier and trans itions in place. Use construction methods conforming to 502. Use

forms or engineer-approved slip form methods for barrier. Use f orms for transitions. C onstruct barrier on horizontal curves as a series of 12-foot or shorter chords.

(4)Install delineators at the spacing the plans show.

603.3.1.2 Anchor Dowels

(1)Anchor dowels are not required if the base and barrier are cas t in one pour. If casting separately, cast

anchor dowels in the supporting su rface, or secure them in dril led holes with adhesive. Clean drilled holes and install dowels according to the adhesive manufacturer 's recommendations. Ensure installed dowels develop the str ength the plans show.

Effective with the December 2018 Letting 330 2019 Standard Spec ifications 603.3.1.3 Joints

(1)Place 3/4-inch expansion joints in the barrier and footing matching existing pavement expansion joints

and at plan locations. Use filler material sized to conform to the cross-section of the barrier and footing. 603.3.1.4 Curing

(1)Cure permanent concrete barrier as specified in 415.3.12.2 . Use PAM as required in 415.3.12.1 .

603.3.1.5 Straightedging

(1)While the concrete is still pl astic, test the wall surfaces, e xcept vertical surfaces on horizontal curves,

for trueness with a 10-foot str aightedge. Test the total surfac e area of the barrier top and face by holding the straightedge in successive positions parallel to the length of the barrier. Straightedge the barrier in successive stages o f not more than 1/2 the length of the straightedge.

(2)Immediately, fill any depressions or projections that deviate more than 3/8 inch in 10 feet with freshly

mixed concrete or strike-o ff and refinish the surface. 603.3.1.6 Surface Finish

(1)Broom finish exposed slip-formed surfaces. Except for footings , provide a sack rubbed finish on

exposed formed surfaces as specified in 502.3.7.5 . 603.3.1.7 Surface Smoothness Tolerance

(1)After the barrier hardens, tes t the top and upper front face f or smoothness with a 10-foot straightedge.

Do not straightedge the front face across chord boundaries on h orizontal curves . The engineer will accept areas that show high spots or depressions greater than 3 /8 inch but not greater than 3/4 inch in 10 feet. The contractor may grind high spots to less than 3/4 i nch in 10 feet tole rance. Remove and replace areas that have high spots or depressions in excess of 3/4 inch in 10 feet on the barrier top or face surfaces.

(2)The engineer will evaluate vertical surfaces on horizontal cur ves to ensure that they are perpendicular

to the pavement surface. 603.3.2 Temporary Precast Barrier 603.3.2.1 General

(1)Conform to the quality standards for temporary barrier described in CMM 1-45 . Ensure that barrier

delivered to the project, both for initial use and for replacing barrier damaged on t he project, meets the criteria for acceptable barrier . Maintain barrier on the projec t at or above the marginal level and replace barrier if its condition becomes unacceptable.

(2)Where temporary barrier abuts permanent ba rrier, connect tempo rary to permanent barrier with steel

rail and install steel cap rail on the first abutting section o f temporary barrier. 603.3.2.2 Delivery, On-The-Project Trucking, and Removal

(1)Under the Concrete Barrier Tempo rary Precast Delivered bid ite m, furnish and deliver temporary

barrier to work sites within the project and remove it upon pro ject completion.

(2)Deliver temporary barrier to a project work site in one of the following ways:

1.Deliver barrier from outside the project.

2.Load barrier from one works ite, truck to another work site on the project, and unload it.

603.3.2.3 Installation

(1)Under the Concrete Barrier Tempo rary Precast Installed bid ite m, install temporary barrier in contract-

identified locations or as the engineer directs. Also make contract-identified or engineer-directed moves that do not require trucki ng and reinstall at those new l ocations. 603.3.2.4 Anchoring Barrier

(1)Anchor barrier on bridge decks where the contract specifies, t he engineer directs, and where the

design notes of the plan details r equire. Move and re-anchor as required to continuously protect construction operations. Fill holes as the engineer directs if the bridge deck will re main in service.

603.4Measurement

(1)The department will measure the Concrete Barrier, Concrete Bar rier Single-Faced 32-Inch, Concrete

Barrier Double-Faced 32-Inch, Concrete Barrier Transition Secti on 32-Inch bid items by the linear foot acceptably completed, measured along the base of the barrier.

(2)The department will measure the Co ncrete Barrier Fixed Object Protection bid items by the linear foot

acceptably completed, measured as the centerline length within the pay limits the plans show.

Effective with the December 2018 Letting 331 2019 Standard Spec ifications (3) The department will measure the Co ncrete Barrier Transition bid items as each individual transition acceptably completed.

(4)The department will measure the Concrete Barrier Temporary Pre cast Delivered by the linear foot

acceptably completed, measured as the linear feet of installed length once for each c ontract-identified work site within the project and other moves the engineer direc ts. The department will only measure moves requiring a truck haul. The department will not measure m oves made solely to accommodate the contractor's means and methods.

(5)The department will measure Concre te Barrier Temporary Precast Installed by the linear foot

acceptably completed, measured along the base of the barrier after installation for each contract- identified or engineer directed initial installation. The depar tment will also measure subsequent contract-identified or engineer d irected reinstallations. The d epartment will not measure installations made solely to accommodate the contractor's means and methods.

(6)The department will measure Anchoring Concrete Barrier on Brid ge Decks by the linear foot

acceptably completed, measured a fter anchoring along the base of the barrier anchored to the deck. The department will measure anchored barrier moved and anchored in a new location on the bridge deck. The department will not measure anchoring required on str uctural bridge approaches or solely to accommodate the contractor's means and methods.

603.5Payment

603.5.1 General

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

items: ITEM NUMBER DESCRIPTION UNIT

603.0105 Concrete Barrier Single-Faced 32-Inch LF

603.0205 Concrete Barrier Double-Faced 32-Inch LF

603.0405 Concrete Barrier Transition Section 32-Inch LF

603.1000 - 1999 Concrete Barrier (type) LF

603.2000 - 2999 Concrete Barrier Fixed Object Protection (type) L F

603.3000 - 3999 Concrete Barrier Transition (type) EACH

603.8000 Concrete Barrier Temporary Precast Delivered LF

603.8125 Concrete Barrier Temporary Precast Installed LF

603.8505 Anchoring Concrete Barrier on Bridge Decks LF

603.5.2 Permanent Barrier

(1)Payment for the permanent barrier, fixed object protection, an d transition bid items is full

compensation for providing barrier or the specified transition; for excavating and bac kfilling for all types except roadside retaining wall; and for disposing of excess mat erial; for restoring the grade.

(2)The department will pay for permanent barrier deficient in smo othness by more than 3/8 inch but not

greater than 3/4 inch, or ground to less than 3/4 inch, at 75 p ercent of the contract unit price. The department will administer the pr ice adjustment under the Nonco nforming Smoothness Concrete Barrier administrative item.

(3)The department will pay separately for associated work as follows:

- Sawing existing concrete or asphalt not placed under the cont ract, under the Sawing Concrete or Sawing Asphalt bid item as specified in 690.5 . - Excavating and backfilling re quired for roadside retaining wa ll barrier, Concrete Barrier TypeS(size)C bid items, under the Excavation bid items as specified in 205.5 and under the Backfill St ructure bid items as specified in 210.5 . - Providing delineators for per manent barrier, under the Deline ator Brackets and Delin eator Reflectors bid items as specified in 633.5 . 603.5.3 Temporary Barrier

(1)Payment for Concrete Barrier T emporary Precast Delivered is fu ll compensation for providing barrier,

initial delivery, trucking between work sites, and removing after contract completion.

(2)Payment for Concrete Barrier T emporary Precast Installed is fu ll compensation for each installation

including providing steel rail connections and steel cap rail f or installations abutting permanent barrier.

Effective with the December 2018 Letting 332 2019 Standard Spec ifications 603.5.4 Anchoring Barrier

(1)Payment for Anchoring Concrete Barrier on Bri dge Decks is full compensation for providing anchoring

devices; for moves required during construction; for coring the bridge deck; for removing anchoring devices; and for filling holes.

(2)The department will pay separately for providing the concrete barrier under the other 603 bid items.

Effective with the December 2018 Letting 333 2019 Standard Spec ifications Section 604 Slope Paving

604.1Description

(1)This section describes paving embankment slopes and waterways with concrete slope paving or

crushed aggregate slope paving to control and prevent erosion o f the slopes and waterways.

604.2Materials

(1)Furnish materials conforming to the following:

Water ......................................................... .................................................................................................. 501.2 Crushed ag gregate ............................................. ......................................................................................... 501.2 Select crushed material ....................................... ........................................................................................ 312.2 Expansion jo int filler ........................................ .......................................................................................... 415.2.3 Asphaltic materials ....................................................................................................................................... 450.2

(2)Furnish grade A, A-FA, A-S, A-T , A-IS, A-IP, or A-IT concrete conforming to 501 as modified in 716.

Provide QMP for class III ancilla ry concrete as specified in 716.

(3)Under the Slope Pavi ng Crushed Aggregate bid item, furnish crushed stone or crushed gravel

conforming to coarse concrete aggr egate size No. 2 but with the additional requirement that at least 75 percent of the particles, by count, have at least one fractured face. Determine fracture according to ASTM D5821 as modified in CMM 8-60 .

(4)Under the Slope Paving Select C rushed Material bid item, furni sh crushed rock or concrete conforming

to 312.2 except the material need not be from a department-approved sou rce.

(5)The requirements of 501.2.5.4.3 relating to soundness and wears hall not apply to crushed aggr egate

slope paving.

(6)Furnish emulsified asphalt, type RS 1 or RS 2 conforming to AASHTO M140, or type CRS 1 or CRS 2

conforming to AASHTO M208 for the asphaltic material in crushed aggregate slope paving.

604.3Construction

604.3.1 General

(1)Prepare the foundation for t he paving so that the finished paving surface conforms to the elevation,

lines, grades and cross-sections the plans show, and the engineer directs. Prepare the foundation by excavating high places and backf illing and compacting low places until it conforms to the required elevation and slope, and is unifo rm in density. Dispose of exce ss excavated material as specified for disposal of surplus or unsuitable material in 205.3.12 , or as the engineer directs.

(2)If the plans specify headers, cut -off walls, or similar appurtenances, construct them as the plans show.

(3)Unless directed otherwise, place one-inch expansion joint filler where slope paving abuts piers,

abutments, or other solid fixtures. 604.3.2 Crushed Aggregate Slope Paving

(1)Place the crushed aggregate on the prepared foundation. Use me chanical or hand methods to shape

and consolidate it to provide a stable, even, and uniform surface.

(2)Apply the asphaltic material uni formly over the surface of the paving at a rate just sufficient to ensure

penetration and binding of the parti cles in the upper 2 inches of the aggregate blanket. Avoid excessive application of asphalti c material and exercise care t o prevent material run-off. Protect the surface of the adjacent structure to prevent splattering or dis coloration by asphaltic material, and immediately remove material accumulations at the foot of the sl ope paving. 604.3.3 Select Crushed Material Slope Paving

(1)Place the select crushed material on the prepared foundation. Use mechanical or hand methods to

shape and consolidat e it to provide a stable, even, and uniform surface. Do not apply asphaltic material binder. 604.3.4 Concrete Slope Paving 604.3.4.1 General

(1)Place the concrete between fo rms set to grade on the prepared foundation. Make the finished

concrete slab a minimum 4 inches thick. Ensure the concrete is a workable consistency when placed, but dry enough to retain its position when struck off. Strike-o ff the concrete with a straightedge supported on the forms and finish with a wood float.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 338–341 of 601.

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

604 Slope Paving