Wisconsin WisDOT Standard Specifications (within FDM) — Section 203

Effective with the December 2018 Letting 75 2019 Standard Speci fications Section 203 Removing Old Culverts and Bridges

203.1Description

(1)This section describes wholly o r partially removing or closing existing culverts and bridges, disposing

of the resulting materials, or if required, salvaging and storing designated materials. 203.2 (Vacant)

203.3Construction 203.3.1 General

(1)Remove or close all or parts o f existing culverts and bridges within the roadway and that are replaced

by or interfere with new constru ction. The contractor who const ructs the new structure that replaces the existing facility, unless the contract specifies otherwise, shall perform this removal or closing.

(2)If specified in the contract, rem ove or close existing culverts, bridges, or parts of them, beyond the

roadway limits, but within the highway limits.

(3)Leave existing culverts and br idges beyond the limits of the h ighway in place and in service unless the

contract specifies otherwise.

(4)Upon removal, culverts, bridges, or parts of them, become the contractor's property, unless

designated in the contract as sa lvageable. If the contractor re moves, but does not replace entrance pipes from private property, t he contractor must offer these pipes to the property owners before claiming them. 203.3.2 Breaking Down and Removing 203.3.2.1 General

(1)Remove those parts of an existi ng structure that interfere wit h new construction. Do not use

equipment, facilities, or methods that might damage members, po rtions of the structure to be preserved, or adjacent construction. Before starting new work, complete blasting or other operations that might endanger new work. If i ncorporating portions of exis ting culverts or bridges in the new work, remove the portions not being saved in a way that leaves the re mainder of the structure undamaged.

(2)Notify the engineer if the porti on of a structure remaining in place is damaged. Do not conduct

construction operations that would obscure that damage or cause additional damage until the department has had an opportunity to assess the structural significance of the damage. Provide the engineer with means to access the site to make this determinati on.

(3)Repair damage done during breaki ng down and removal as the eng ineer directs.

203.3.2.2 Removal Operations Revise 203.3.2.2 to require department assessment of and written approval for restoration of contractor-caused damage done during deck removal. This cha nge was implemented in ASP 6 effective with the December 2017 letting. 203.3.2.2.1 General

(1)Except as specified below for closing culverts, remove the ent ire top slab of box culverts and the entire

superstructure of other culverts and bridges designated for rem oval. Completely remove existing piles, cribs, or other timber construction within the limits of new embankments, or remove these structures to an elevation at least 2 feet below finished ground line. Remove sidewalls or substruc ture units in water to an elevation no higher than the elevation of the natural str eam or lake bed, or, if grading the channel is required under the contract or the plans, to the pro posed finished grad e of the stream or lake bed. Remove sidewalls or sub structure units not in water d own to at least 2 feet below natural or finished ground line.

(2)If extending or incorporating exi sting culverts and bridges in the new work, remove only those parts of

the existing structure as necessary to provide a proper connection to the new work. Saw, chip, or trim the connecting edges to the required lines and grades without weakening or damaging the remaining part of the structure. During co ncrete removal, do not damage r einforcing bars left in place as dowels or ties incorporated into the new work.

(3)Remove pipe culverts designated for salvage in a way that prev ents damage to the culverts.

(4)Dismantle steel structures or p arts of steel structures designated for salvage in a way that avoids

damage to the members. If the contra ct specifies removing the s tructure in a way that leaves it in a condition suitable for re-erection, matchmark members with dura ble white paint before dismantling. Mark pins, bolts, nuts, loose plates, etc., similarly to indica te their proper location. Paint pins, bolts, pinholes, and machined surfaces with a department-approved rust preventative. Securely wire loose parts to adjacent members, or label and pack them in boxes.

Effective with the December 2018 Letting 76 2019 Standard Speci fications (5) Remove timber structures or p arts of timber structures designa ted for salvage in a way that prevents damage to the members.

(6)If the engineer approves, the contractor may temporarily use m aterials designated for salvage in

falsework used to construct new w ork. Do not damage or reduce the value of those materials through temporary use. 203.3.2.2.2 Deck Removal

(1)Protect the work as specified in 107.14 during deck removal. Minimize debris falling onto water

surfaces and wetlands as the contract specifies in 107.18 or in the special provisions. Also, minimize debris falling on the ground and roadway.

(2)Do not damage existing bar steel reinforcement , girders, or other components that will be incorporated

in new work. Remove decks on prestressed concrete girders using a hydraulic shear or other engineer-approved equipment. Thorou ghly clean, realign, and ret ie reinforcement as necessary.

(3)After deck removal is complete, notify the engineer to request a damage survey. Point out damage to

the engineer. Allow 1 business day for the engineer to complete the damage survey. If damage is identified, the department will det ermine if repairs or girder restoration w ill be allowed.

(4)If the department allows g irder restoration, have a professional engineer registered in the State of

Wisconsin analyze the effect of the damage to the bridge, make recommendations, and prepare signed and sealed computati ons and structural details required to restore girders to their previous structural capacity . Submit the restoration proposal, including analysis and struc tural details, to the department and design engineer of record. The department will accept or reject the restoration proposal within 3 business days. Do not begin restoration work until the department allows in writing.

(5)The engineer will not extend contra ct time to assess or remediate contractor caused damage.

203.3.3 Closing Culverts

(1)The contractor may close culverts instead of removing them if the following conditions exist:

1.The diameter or span of a culvert is less than 4 feet.

2.The top of the culvert does not come within 5 feet of the e levation of the finished roadway.

3.The engineer deems the structure to be in suitable conditio n.

(2)Remove the headwalls and those parts of the structure that would be within 2 feet of the finished

ground line. Completely fill each end of the culvert with satis factory soil for a distance from each end of at least 2 feet plus the height o f the opening of t he structure . 203.3.4 Incorporating or Disposing of Materials

(1)Remove materials resulting from culvert or bridge removals not designated for salvage or

incorporation in the work, from t he right-of-way. Ensure that d isposal sites are neatly constructed.

(2)Place materials designated for salvage in neat piles outside t he roadway but within the right-of-way at

locations the engineer designates. Clean salvaged pipe culverts . Locate the piles far enough from the traveled way so they do not c reate a hazard to traffic.

(3)Incorporate broken steel-free concrete, stone, brick, and like granular material in the contract work to

the extent practicable. The cont ractor may use these materials, if suitable, to construct riprap, tree wells, and similar structures. U nless the contract or the engin eer specifies otherwise, incorporate the balance of these materials, if they have suitable engineering p roperties, in embankments as specified for placing rocks under 207.3.4 . Do not place these materials within 8 inches of the surface o f the earth grade.

(4)Incorporate excavated material in the work to the extent pract icable. Use materials with suitable

engineering properties to backfill areas resulting from removals and to construct embankments. Dispose of surplus or unsuitable material as specified under 205.3.12.

(5)If placing broken concrete, st one, brick, or any other waste m aterial outside the right-of-way, conform

to regulations governing solid was te disposal. Obtain written p ermits for this dispo sal from the owner of the property where placing t he material, unless disposing of the material at a licensed waste disposal operation. Furnish per mits, or copies of permits, to t he engineer before disposal begins. Do not deposit waste in wetlands.

(6)Arrange with the owners for the disposal of private entrance pipes removed but not replaced.

(7)Unless the contract or the engineer gives more specific instru ctions, neatly store structural steel

designated for salvage on blocking in a location suitable for l oading. Store structures or portions of structures, specified in the prop osal for re-erection, in separate piles.

Effective with the December 2018 Letting 77 2019 Standard Speci fications (8) Remove nails and bolts from timber or piling from old structures, designated for salvage. Store this timber or piling in neat piles in locations suitable for loadin g. Dispose of waste ti mber and lumber by open burning, if allowed; by burning in an air curtain destruct or, if allowed; by chipping, or dispose of as specified for surplus material in 205.3.12. Dispose of chipped material as specified for machine cutting or chipping in 201.3(13) . Dispose of creosote treated p iling as required by the WDNR. 203.3.5 Backfilling

(1)Backfill trenches resulting from removing or breaking down old culverts and bridges, and not occupied

by new structures or required for waterways. Use either satisfactory soil or broken masonry and satisfactory soil. If the contrac t plans or special provisions specify granular backfill, use backfill material conforming to 209. Place backfill material in la yers no thicker than 8 inches. I f using granular backfill, the contractor may place granular backfill in layers up to 12 inches thick. Thoroughly compact each layer using engineer-approved tampers, rollers, or vibrato rs. If encountering water in an excavation, place backfill in a w ay that displaces the water an d does not trap it.

(2)Do not use water to expedites ettlement of backfill except with the engineer’s approval. However, this

provision does not require the co ntractor to de-water the excav ation before placing backfill.

203.4Measurement

(1)The department will measure Remo ving Small Pipe Culverts as ea ch individual small culvert removal

acceptably completed.

(2)The department will measure the Re moving Old Stru cture bid items as a single lump sum unit for each

structure accept ably completed.

(3)The department will not deduct t he volume of these removals fr om the volume of the associated

roadway, drainage, or structure excavation item.

203.5Payment

203.5.1 General

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

items: ITEM NUMBER DESCRIPTION UNIT

203.0100 Removing Small Pipe Culverts EACH

203.0200 Removing Old Structure (station) LS

Revise 203.5.1(2) to clarify that all costs associated with contractor-caused damage are incidental. This change was implemented in ASP 6 effective with the December 2017 letting.

(2)Payment is full compensation for breaking down and removing; costs associated with contractor-

caused damage ; required salvaging, storing, and disposing of materials; and, unless the contract specifies granular backfill, for backfilling.

(3)Removing non-rectangular culve rts with a cross-sectional area smaller than the area of a 12-inch

diameter round pipe is incidental to associated items of work.

(4)If the contract specifies bac kfilling with granular backfill, the department will pays eparately for that

backfilling under the Backfill Granul ar bid items as specified in 209.5 . 203.5.2 Removing Small Pipe Culverts

(1)Under the Removing Small Pipe Culverts bid item, remove non-re ctangular culverts with a cross-

sectional area equivalent to or larger than the area of a 12-in ch diameter round pipe but smaller than a 60-inch diameter round pipe.

(2)The department will pay for each i ndividual pipe in a multi-pi pe cluster at the contract price each.

Associated precast components are incidental to this bid item. The department will pay for associated cast-in-place components sepa rately under the appropriate 204 removal item.

(3)If a culvert removal the engineer directs, or 104.7 requires, conforms to the classification criteria for

the Removing Small Pipe Culverts bid item, but the contract does not show that removal, the department will pay for that removal at the contract price each or, absent the bid item, as extra work. If a removal that the plans show as a small pipe culvert conforms to the classification criteria for the Removing Old Structure bid items, the department will pay for t hat removal as extra work. 203.5.3 Removing Old Structure

(1)Under the Removing Old Structure bid items, remove bridge-like structures. The department classifies

a removal as a bridge-like str ucture if the structure is one or more of the following:

1.A bridge with a span of 20 feet or greater.

2.Bridge-like with a span less than 20 feet.

Effective with the December 2018 Letting 78 2019 Standard Speci fications 3. A rectangular culvert of any size.

4.A non-rectangular culvert with a cross-sectional area equiv alent to or larger than th e area of a 60-inch

diameter round pipe.

(2)Payment includes removing associated incidental structures, hy brid concrete box culverts with

associated pipe culvert extensio ns, and multi-cell and multi-pi pe systems. If required in 104.7 or if the engineer directs removing a stru cture, conforming to the classi fication criteria for this bid item but not included in the contract, the depa rtment will pay for that removal as extra work.

(3)The contractor will bea r all expenses, incl uding engineering costs, for restoring structurally damaged

girders as specified in 203.3.2.2(2) .

Effective with the December 2018 Letting 79 2019 Standard Speci fications Section 204 Removing or Abandoning Miscellaneous Structures

204.1Description

(1)This section describes wholly o r partially removing or abandoning existing miscellaneous structures,

disposing of the resulting materials, or if required, salvaging and storing designated materials. 204.2 (Vacant)

204.3Construction 204.3.1 General

204.3.1.1 General Requirements

(1)If retaining a portion of the existing structure, avoid damagi ng that portion during construction

operations. Do not use any equipm ent or devices that might dama ge structures, facilities, or property to be preserved and retained. Complete operations necessary to remove or abandon an existing structure and that might endanger the new construction before c onstructing new work. 204.3.1.2 Backfilling

(1)Backfill trenches, holes, and pits resulting from breaking dow n, removing, or abandoning

miscellaneous structures as specified fo r backfilling trenches in 203.3.5.

(2)Unless the contract specifies otherwise, backfill to the elevation of the natural g round, the proposed

finished earth subgrade, or finished slopes, as necessary due t o the location of the removed structure. 204.3.1.3 Salvaging or Disposing of Materials

(1)Carefully remove materials designated for salvage to avoid dam age. Place salvaged materials in neat

piles outside construction limits but within the right-of-way, at locations the engineer approves. Stockpile materials designated for salvage at locations the eng ineer approves, without contaminating the material with dirt or foreign matter.

(2)Dispose of concrete, stone, bri ck, and other material not designated for salvage as specified for

disposing of materials under 203.3.4 . 204.3.2 Breaking Down and Removing 204.3.2.1 General

(1)Unless specified otherwise, rem ove structures that the contrac t designates for remova l or that interfere

with the new construction as follows: - From within the roadway. - From within the removal limits the plans show. - From within the limits designa ted under the Obliterating Old Road bid item, whether specified or subsequently found necessary and required. - If the contract specifies, also wholly or partially remove st ructural elements occurri ng outside the limits of construction and bey ond the limits of Oblit erating Old Road.

(2)Unless the plans show otherwise , remove entirely or break down walls, piers, surface drains,

foundations, and similar masonry structures as follows:

1.Within the road bed, to a depth at leas t 2 feet below the su bgrade.

2.Outside the roadbed, to a d epth at least 2 feet below the f inished grade.

3.At any location, to the ext ent required to avo id interferin g with the work.

(3)If removing pavement, curb, gutter, sidewalk, c rosswalk, and similar structures and portions of the

existing structure are to remai n in the surface of the finished work, remove the stru cture to an existing joint, or saw and chip the structure to a true line with a face perpendicular to the surface of the existing structure. Remove enou gh of the structure to provide proper gra des and connection to the new work. Maintain drainage as specified for drainage during construction in 205.3.3 .

(4)The contractor becomes the owner of the removed asphaltic pavement or surfacing and is responsible

for its disposal as specified fo r disposing of materials under 204.3.1.3 . 204.3.2.2 Removing Items 204.3.2.2.1 General

(1)Under the Removing Pavement bid i tem, remove concrete pavements, concrete alleys, concrete

driveways, or rigid base including all surfaces or other paveme nts superimposed on them.

(2)Under the Removing Pavement Bu tt Joints bid item, remove concr ete pavements to allow the

construction of butt joints. Remove existing pavement to the de pth the plans show by grinding, planing, chipping, sawing, or other engineer-appr oved methods.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 84–87 of 601.

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202 Roadside Clearing

204 Removing or Abandoning Miscellaneous Structures