552EXTERNALLY STABILIZED CUT STRUCTURES

552-1 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 551.51020 Drilled Shafts (Low Overhead Clearance - 2.0 ft. Diameter) Foot 551.51025 Drilled Shafts (Low Overhead Clearance - 2.5 ft. Diameter) Foot 551.51030 Drilled Shafts (Low Overhead Clearance - 3.0 ft. Diameter) Foot 551.51035 Drilled Shafts (Low Overhead Clearance - 3.5 ft. Diameter) Foot 551.51040 Drilled Shafts (Low Overhead Clearance - 4.0 ft. Diameter) Foot 551.51045 Drilled Shafts (Low Overhead Clearance - 4.5 ft. Diameter) Foot 551.51048 Drilled Shafts (Low Overhead Clearance - 4.8 ft. Diameter) Foot 551.51050 Drilled Shafts (Low Overhead Clearance - 5.0 ft. Diameter) Foot 551.51055 Drilled Shafts (Low Overhead Clearance - 5.5 ft. Diameter) Foot 551.51060 Drilled Shafts (Low Overhead Clearance - 6.0 ft. Diameter) Foot 551.51065 Drilled Shafts (Low Overhead Clearance - 6.5 ft. Diameter) Foot 551.51070 Drilled Shafts (Low Overhead Clearance - 7.0 ft. Diameter) Foot 551.51075 Drilled Shafts (Low Overhead Clearance - 7.5 ft. Diameter) Foot 551.51080 Drilled Shafts (Low Overhead Clearance - 8.0 ft. Diameter) Foot 551.52 Trial Shafts Each 551.53 Furnishing Equipment for Installing Drilled Shafts Lump Sum 551.54 Furnishing Equipment for Installing Drilled Shafts (On Water) Lump Sum 551.55 Furnishing Equipment for Installing Drilled Shafts (Low Overhead Clearance) Lump Sum 551.56 Crosshole Sonic Logging (CSL) of Drilled Shafts Each SECTION 552 - EXTERNALLY STABILIZED CUT STRUCTURES (Last Revised May, 2016)

552-1 Description

552-1.01 Permanent Sheeting. Under this work, the Contractor shall furnish and install permanent

sheeting of the type, at the locations and to the elevation(s) shown in the contract documents or as directed by the Engineer. All the sheeting and supports will be left in place as a finished structure unless removal of waling and bracing is called for in the contract documents.

552-1.02 Temporary Sheeting. Under this work, the Contractor shall furnish, install, maintain and

remove temporary sheeting of the type, at the locations and to the elevation(s) shown in the contract documents or as directed by the Engineer. It may be left in place only with the writ ten permission of the Engineer. 552.1.03 Interim Sheeting. Under this work, the Contractor shall furnish, install, maintain, cut off and remove sheeting of the type, at the locations and to the elevation(s) shown in the contract documents or as directed by the Engineer. The interim sheeting shall be cut off and removed only to the elevation shown in the contract documents. The remaining material shall be left in place.

552-1.04 Shields and Shoring. Under this work, the Contractor shall design, furnish, place, maintain and

remove a shields and shoring system at locations shown in the contract documents or as directed by the Engineer. Details of the shields and shoring system must conform to the requir ements of 29 CFR 1926. It may be left in place only with the written permission of the Engineer.

552-1 05

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 workers within the trench. An S&S system may consist of sheeting, shoring, shield systems, trench box, trench shield or other pre -engineered protective systems.

552-1.05 Soldier Pile and Lagging Wall. Under this work, the Contractor shall furnish and place a

soldier pile and lagging wall in accordance with the contract documents; cut off walls located within the roadway limits to the elevation shown in the contract documents and leave the remainder in p lace unless removal is granted, in writing, by the Engineer; completely remove walls outside the roadway limits if noted on the plans; and dispose of removed material.

552-1.06 Alternate Design. The Contractor may submit to the Department a construction alternate other

than that presented in the contract documents as a Value Engineering Change Proposal. A simple material substitution involving a sheeting section modulus or soldier pile designation greater than that shown in the contract documents will be considered for acceptance. All proposed changes to details shown in the contract documents must be approved, in writing, by the Deputy Chief Engineer for Technical Servic es. Any geotechnical analysis for a flexible support system shall be done in accordance with the procedures contained in the geotechnical design procedure “ Geotechnical Design Procedure for Flexible Wall Systems ”.

552-2 Materials

552-2.01 Permanent Sheeting

552-2.02 Temporary Sheeting

552-2.03 Interim Sheeting

552-2 04

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 A. Interim Timber Sheeting. Interim timber sheeting shall consist of any acceptable species which can be placed satisfactorily in accordance with the requirements of §712 -14 Stress Graded Timber and Lumber . Interim timber sheeting shall consist of new or used, treated or untreated material but shall be in satisfactory condition and suitable for the intended use. The Engineer will reject unsatisfactory materials.

552-2.04 Shields and Shoring. The selection of S&S systems and materials shall be the Contractor's

option. The Engineer will reject unsatisfactory materials.

552-2.05 Soldier Pile and Lagging Wall.

552-3 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 a. Controlled Low Strength Material. Material meeting the requirements for Controlled Low Strength Material as stated in §733 -01 Flowable Fill .

552-3 Construction Details

552-3.01 General. The Contractor shall install sheeting having a section modulus not less than that

shown in the contract documents. The Contractor shall install soldier piles meeting the size designation shown in the contract documents. Any material which stops the driving of sheeting or soldier piles within a depth of 10 feet from the ground surface at the time of driving shall be removed by the Contractor. Payment for removal of such material and any backfill required to fill the result ing void will be made under the appropriate pay items. If very compact material or boulders prevent the progression of the sheeting or soldier piles to the design tip elevation at a greater depth, the Contractor shall notify the Engineer. The Contractor shall perform work in a manner that causes no subsidence of the surrounding ground surface. If subsidence should occur, the Contractor shall cease work and provide a written plan to prevent subsidence for approval by the Engineer. The Contra ctor shall repair all damage that resulted from the subsidence at no additional cost to the State.

552-3.02 Temporary Sheeting. The Contractor shall install temporary sheeting having a section modulus

which meets or exceed that shown in the contract documents. After its function is no longer required, the Contractor shall remove the sheeting placed under this work, or with the written permission of the Engineer, leave it in place after cutting off the tops at an agreed elevation.

552-3.03 Interim Sheeting. The Contractor shall install interim sheeting having a section modulus which

meets or exceed that shown in the contract documents. The Contractor shall cut off the interim sheeting and remove it to the elevation shown in the contract documents. The remaining material shall be left in place.

552-3.04 Shields and Shoring. The Contractor shall install a S&S system in accordance with the contract

documents. The S&S installed under this work shall be of sufficient size and strength to meet the requirements of 29 CFR 1926 and the Live Load requirement as contained in the AASHTO Standard Specifications for Highway Bridges. Prior to use, the Contractor shall supp ly the Engineer with documentation of compliance. The S&S may be left in place only with the written permission of the Engineer. All damage to the adjacent pavement or ground caused by the use of the chosen S&S (e.g. voids beneath the pavement or shoulder, pavement or shoulder cracking or subsidence, ground settlement) shall be repaired at no additional cost to the State. Severe dam age which directly affects the safety of the public

552-3 05

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 shall be immediately repaired. The operation shall be halted until a satisfactory prevention method is instituted.

552-3.05 Soldier Pile and Lagging Wall. The Contractor shall install Soldier Piles meeting the size

designation shown in the contract documents either by driving or by placing them in holes as indicated on the plans in accordance with Table 552 -2 Soldier Pile and Lagging Wall Pile Tolerances . For each pile out of tolerance, provide a satisfactory replacement or provide a modification approved by the Engineer prior to proceeding. No pile splices will be allowed unless approved, in writing, by the Deputy Chie f Engineer of the Office of Technical Services. TABLE 552 -2 SOLDIER PILE AND LAGGING WALL PILE TOLERANCES Survey Location Tolerance Plan 3 inches at the top of pile. Vertical Vertical tolerance of ⅛ inch per foot on each axis of the soldier pile shown on the plans. Verify the axis on the top 5 feet of the soldier pile with a straight edge (5 feet minimum length) and a level (4 feet minimum length).

552-2 Soldier Pile and Lagging Wall Pile Tolerances.

552-4 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 The Contractor shall fabricate the precast concrete lagging to the shape and size shown in the contract documents.

552-4 Method of Measurement

552-4.01 General. When a support system is used in stage construction, the quantity of support system

will be the maximum number of square feet satisfactorily installed between the payment lines shown in the Contract Documents measured on only one side of adjacent construction stages.

552-4.02 Permanent Sheeting. The quantity of sheeting will be in square feet, measured to the nearest

square foot. The upper payment line will be at the intersection of the sheeting and the ground surface at the time of commencing work or at the completion of backfilling operations, w hichever is higher. The lower payment line will be the minimum embedment depth shown in the contract documents. The horizontal length will be measured along a projection of the sheeting on a plane parallel to and midway between the front and rear face of the sheeting wall.

552-4.03 Temporary Sheeting. The quantity of sheeting will be in square feet, measured to the nearest

square foot. The upper payment line will be the original ground at the time of commencing work. The lower payment line will be the minimum embedment depth shown in the contract docume nts. The horizontal length will be measured along a projection of the sheeting on a plane parallel to and midway between the front and rear face of the sheeting wall.

552-4.04 Interim Sheeting. The quantity of sheeting will be in square feet, measured to the nearest

square foot. The upper payment line will be the original ground at the time of commencing work. The lower payment line will be the minimum embedment depth shown in the contract docume nts. The horizontal length will be measured along a projection of the sheeting on a plane parallel to and midway between the front and rear face of the sheeting wall.

552-4.05 Shields and Shoring. The quantity of shields and shoring will be in square feet, measured to the

nearest square foot, obtained by multiplying the vertical length between the payment lines herein described, measured on both sides of the excavation, by the horizontal length of S&S actually used. The upper payment line will b e the ground surface existing at the site prior to the beginning of the work. The lower payment line will be the bottom of the excavation immediately adjacent to the protection system. The horizontal length will be the length of protection system installed measured along the payment lines as shown in the contract documents. Both sides of the excavation will be measured and computed for payment.

552-4.06 Soldier Pile and Lagging Wall.

552-5 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 B. Rock Sockets. The quantity to be measured for payment will be in feet of sockets in rock installed. The upper payment limit is the top of rock as shown on the plans. The lower payment limit is the pile tip elevation.

552-5 Basis of Payment

552-5.01 Permanent Sheeting. The unit price bid for this work shall include the cost of furnishing all

labor, materials and equipment necessary to satisfactorily complete the work, including driving equipment, waling, and bracing. The cost of maintaining the excavated area free from e arth, water, ice, and snow will be included in the price bid for the appropriate excavation item.

552-5.02 Temporary Sheeting. The unit price bid for this work shall include the cost of furnishing all

labor, materials and equipment necessary to satisfactorily complete the work, including driving equipment, waling, and bracing. The cost of maintaining the excavated area free from e arth, water, ice, and snow will be included in the price bid for the appropriate excavation item. Progress payments in the amount of 75% of the bid amount will be made upon installation of the sheeting with the remainder paid upon its satisfactory removal. If the Contractor leaves all or part of the sheeting in place, it will be at no additional cost to the State and the remaining 25% of the bid amount will be paid after its function is no longer required.

552-5.03 Interim Sheeting. The unit price bid for this work shall include the cost of furnishing all labor,

materials and equipment necessary to satisfactorily complete the work, including driving equipment, waling, and bracing. The cost of maintaining the excavated area free from e arth, water, ice, and snow will be included in the price bid for the appropriate excavation item. Progress payments in the amount of 75% of the bid amount will be made upon installation of the sheeting with the remainder paid upo n satisfactory removal of that portion specified in the contract documents. If the support system is to be left in place in its entirety, the remainder will be paid after its function is no longer required. The cost of any work necessary to cut off and rem ove the specified portion shall be included in the unit price bid.

552-5.05 Shields and Shoring. The unit price bid for this work shall include the cost of furnishing all

labor, materials and equipment necessary to satisfactorily complete the work, including equipment, waling, bracing, and design services when employed. If the Engineer directs, in writing, that the S&S be left in place, this will be classified as extra work.

552-5.05 Soldier Pile and Lagging Wall.

553-1 01

NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 backfilling the hole and cutting off the soldier pile where required. No additional payment will be made for complete pile removal, where allowed. Splices approved, in writing, by the Deputy Chief Engineer for Technical Services will be paid for under the appropriate pay item.

553-1 Description

553-1.01 Cofferdams. This work shall consist of the design, placement, maintenance, and removal of

cofferdams as shown in the contract documents. The Contractor shall also construct, maintain, stabilize, backfill, and restore adequate sediment removal area(s) for water discha rge control at location(s) shown on the contract documents or where allowed by the Engineer. For design purposes, the bottom of excavation elevation shall be assumed to be the deepest excavation of the entire area enclosed by the coffer dam. A waterway diversion structure is not a substitution for, or equal to, a cofferdam.

553-1.02 Temporary Waterway Diversion Structures . This work shall consist of the design,

installation, maintenance, and removal of a temporary Waterway Diversion structure as shown in the contract documents.