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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 596-3.02 Field Welding. All the requirements and provisions of the SCM shall apply.
596-3.03 Field Painting. The requirements of §596 -2.03 shop painting, shall apply.
596-4 METHOD OF MEASUREMENT. The quantity to be measured will be the actual area, in square
feet, of open steel floor furnished and installed, including any portions that are filled with concrete.
596-5 BASIS OF PAYMENT. The unit price bid per square foot shall include the costs of all labor,
material (including fabrication) and equipment necessary to complete the work. Payment will be made under: Item No. Item Pay Unit 596.01 Open Steel Floor Square Foot SECTION 597 - TIMBER BRIDGE RAILING AND TRANSITIONS
597-1 DESCRIPTION. The work shall consist of furnishing and erecting timber bridge railing and
transitions as shown on the contract plans and in accordance with the specifications. As soon as the Contract is awarded, the Contractor shall notify the DCES of the name and address of the fabricator of all timber bridge railing. This notification shall list the specific shop or shops in which the railin g will be fabricated.
597-2 MATERIALS. Materials for this work shall meet the following requirements:
Component ASTM or SAE Designation Internal Steel Plates A36 (A709, Grade 36) Rail Splice Plate A36 (A709, Grade 36) Tension Rods and Connection Bolts F3125 GRADE A325 or A449 Type 1 Round Head Square Neck Threaded Bolt A307 Grade A Nuts A563 Class 10S, Type HH Washers F436, Type 1 Thrie Beam A588 or A572 (A709, Grade 36 or 36W) Thrie Beam to W -Beam Transition Piece A588 or A572 (A709, Grade 36 or 36W) Dome Head Drive Spike Industry Standard Split Rings SAE 1010 Hot Rolled Carbon Steel Shear Plates ASTM A47/A47M, Grade 32510 The provisions of §708 -31 Wood Preservative - Water Borne, §708 -32 Wood Preservative - Oil Borne, §712 -14 Stress Graded Timber and Lumber, and §715 -01 Structural Steel, shall apply. Glued laminated timber shall comply with the requirements of the American Institute of Timber Construction (AITC). All wood products shall be pressure treated with wood preservative in accordance with §708 -31 or §708 -32 except that laminations for glue la minated timbers shall be treated prior to gluing with wood preservative designated as light pentain oil as in AWPA C28 and glued with wet -use adhesives conforming to Sections 4.5.1.2 of ANSI/AITC A190.1 -1983. The bridge rail shall be horizontally laminated glued laminated timber, visually graded Western species combination No. 2 or visually graded Southern Pine Combination No. 48. Other species and grades of glued laminated timber may be substituted provided th at the minimum values tabulated in the latest edition of the National Design Specification for Wood Construction (ANSI/NFoPA NDS) are not less than the following:
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 Fb y-y = 1800 psi E = 1800 ksi Posts, curbs, scuppers, and spacing blocks may be sawn lumber or glued laminated timber. When sawn lumber is used, material shall be visually graded No. 1 Southern Pine or visually graded No. 1 Douglas Fir -Larch. Other species and grades of lumber may be s ubstituted provided that the minimum values tabulated in the latest edition of the National Design Specification for Wood Construction (ANSI/NFoPA NDS) or obtained through a Machine Stress Rated (MSR) procedure approved by the American Lumber Service (ALS) are not less than the following: Fb = 1350 psi E = 1500 ksi
597-3 Construction Details
597-3.01 Fabrication. Timber bridge railing shall be fabricated to the dimensions shown on the
Contract plans and in compliance with the specifications.
A.Shop Drawings. Shop drawings shall be provided in accordance with the Steel Construction Manual (S.C.M.) except as follows:
1.The drawings shall be submitted to the Engineer for review and approval; and
2.The computed weights need not be shown.
B.Galvanizing. Galvanizing shall conform to the requirements of §719 -01, Galvanized Coatings and Repair Methods, Type I. All steel components of the railing, including the round head square necked threaded bolts, shall be galvanized. Galvanizing of high -strength steel tension rods shall follow the recommendations of the tension rod manufacturer so as not to adversely affect the mechanical properties of the steel. All steel components shall be galvanized after welding and other fabrication. Shop galvanizing repair of uncoated areas will be permitted on localized areas. Repair of localized areas is limited to a total of 2 square inches on any one component. Any component requiring more than 2 square inches of galvanizing repair shall be stripped and regalvanized. Shop repair shall be in accordance with the methods given in §719 -01. The following areas shall not require galvanizing repair: One 1/8 inch maximum dimension spot of tight flux remaining in the fusion line of any 7 inch length of weld after blast cleaning, pickling and galvanizing.
C.Shop Wood Repair. All cutting, framing and boring of timber shall be done before treatment whenever practicable. All cut surfaces shall be tr eated in accordance with AWPA M4 with the addition that at least three coats of preservative shall be applied. All bolt holes bored subsequent to treatment shall be treated with preservative by means of an approved pressure bolt hole treater. Any unfilled holes, after being treated with preservative shall be plugged with preservative treated plugs.
597-3.02 Erection of Timber Bridge Railing and Transitions
A.Inspection of Railing. Prior to installation, all timber and lumber shall be examined for shakes, holes, knots, checks, splits, and decay. The Materials Requirements under "Defects" of §712 -17 shall
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 apply. Any piece of timber or lumber exhibiting any one of the aforementioned defects shall be subject to rejection as determined by the Engineer.
B.Inspection of Galvanizing. Immediately prior to erection, the railing shall be inspected for damage. Damage to the galvanizing of steel railing components shall constitute sufficient cause for rejection except for the following conditions:
1.If a damaged area is not required to be repaired under the provisions of §710 -23, Steel Bridge Railing.
2.If the total damaged area of a single piece is 6 square inches or less. Total damaged area is exclusive of the damaged area described under §597 -3.02B1.
C.Field Wood Repair. All cut surfaces shall be treated in accordance with AWPA M4 with the addition that at least three coats of preservative shall be applied. All bolt holes bored subsequent to treatment shall be treated with preservative by means of an approved pressure bolt hole treater. Any unfilled holes, after being treated with preservative shall be plugged with preservative treated plugs. The Contractor shall obtain all necessary permits pertaining to the purchase and field application of wood preservatives from the U.S. Environmental Protection Agency (EPA) and the New York State Department of Environmental Conservation.
D.Field Galvanizing Repair. Field galvanizing repair shall be allowed to be performed upon damaged areas meeting the requirements of §597 -3.02B2. Field galvanizing repair shall be made by painting zinc repair material onto the damaged area in accordance with the requirements of §719 -01, Galvanized Coatings and Repair Methods. All finished surfaces of welds and adjacent surfaces where galvanizing has been removed, due to any field welding operation, shall be field galvanized.
E.Holes in Metal Plates. Prior to galvanizing, any necessary holes in the metal plates shall be made in the shop in accordance with the requirements of the S.C.M.
F.Installation. The installation work shall be done by bolting methods alone. The requirements of the S.C.M. shall apply.
G.Posts. Bridge railing posts shall be installed as truly vertical as possible within the following tolerance limit: 5/16 inch in any direction as measured from the top of the deck to the top of the post. Bridge railing transition posts shall be installed at the location and in the manner indicated on the Contract plans. The Contractor shall carefully excavate for all post holes. Post holes and post foundation structures shall be backfilled and compacted in accordance with Section 203, Select Structure Fill .. Prior to acceptance, all posts shall be plumb to a tolerance of +/ - 5/16 inch . Posts, in their final position, shall satisfy the Material Requirements for "Defects” of §712 -17. The tops of all posts and the top of the rail splice plate kerf shall be sealed with roofing cement or otherwise protected from direct exposure to weather.
H.Rails. The rails of timber railings shall span a minimum of four (4) posts. Bolts on traffic face of rail shall be round head square neck threaded bolt. Railing splices shall be installed in the manner indicated on the Contract plans.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Sections 200 - 599 STANDARD SPECIFICATIONS (USC) January 1, 202 4 Volume 2 I. Washers. Unless otherwise noted, malleable iron washers shall be provided under bolt heads and under nuts that are in contact with wood. Washers may be omitted under heads of dome -head timber bolts when the size and strength of the head is sufficient to develop connection strength without wood crushing.
J.Erection Inspection. All erection shall be subject to the inspection of the Engineer who shall be given all facilities required for a visual inspection of workmanship and materials.
597-4 Method of Measurement
597-4.01 Timber Bridge Railing. The quantity to be paid for timber bridge railing shall be the number
of feet measured along the centerline of railing between the extreme outer limits indicated on the Contract plans.
597-4.02 Timber Bridge Railing Transition. The quantity to be paid for timber bridge railing
transition shall be the number of transitions required.
597-5 BASIS OF PAYMENT. The unit price bid per linear foot of the timber railing shall include the
cost of all labor, material and equipment necessary to do the work. The price bid per timber bridge railing transition shall include the cost of all labor, material and equipment necessary to do the work. All drilling and grouting work, if permitted, will be do ne at the contractor’s expense. Payment will be made under: Item No. Item Pay Unit 597.10 Timber Railing Foot 597.20 Timber Railing Transition Each SECTIONS 598 AND 599 (VACANT )
Source: New York Standard Specifications, 2024 Edition. Pages 467–470 of 1,264.