531.02 Materials.
Structure excavation and foundation backfill, including that necessary for the installation of roadway pipe of a temporary nature, when ordered will be measured and paid for as prescribed in Section 214. The accepted length of pipe culverts jacked (bored) as ordered and acceptably installed will be measured along the bottom flowline, or invert, of the pipe complete in place. The limits of measurement of jacked (bored) pipe under this Section will not exceed the length along the flowline of the pipe from face to face of the boring pit or the length sho wn on the plans, except as otherwise directed in writing by the Engineer, whichever is less. There will be no separate measurement for payment for structure excavation and foundation backfill for pipe installed by the jacking (boring) method.
530.05 Basis of Payment.
a.Unit Price Coverage . The accepted length of pipe culverts, measured as above provided, will be paid for at the respective contract unit prices for the various sizes, and types of pipe provided in the proposal, complete in place, which shall be payment as herein provided and also for all work, equipment, materials, and incidentals connected with the execution of the Class Bedding specified for installation, except that Foundation Backfill and Structure Excavation shall be paid for separately.
b.Pipe Size, Class, Bedding, and Optional Types. The internal diameter of circular pipe, the span and rise of arch pipe, the class of pipe, the class of pipe bedding, if other than Class "C", and the type or types of pipe allowed will be shown in the it em name. The internal diameter of jacked (bored) pipe and the type or types of pipe allowed will be shown in the item name.
c.Payment will be made under Item No.: 530-A ___ inch {mm} Roadway Pipe, Class * Bedding ( ** ) - per linear foot {meter} 530-B ___ inch {mm} Span, ___ inch {mm} Rise Roadway Pipe, Class * Bedding ( ** ) - per linear foot {meter} 530-C _____ inch {mm} Roadway Pipe, Jacked Installation ( *** ) - per linear foot {meter} * If other than Class "C ", so note. ** Show acceptable types of pipe. *** Specify "Smooth Steel", "Class __ R.C.", etc. if applicable. Examples: Specific Type: Class ____ R.C., or ____ gage {mm} C.C.S.P.I., or ____ gage {mm} C.C.S., or ____ gage {mm} C.C.A.P.I., or____ gage {mm} C.C.A. Optional Types: Class ____ R.C. or equal strength C.C.M.P.I. or Class ____ R.C. or equal strength C.C.M. CORRUGATED METAL STRUCTURAL PLATE PIPE, ARCH PIPE, AND ARCH CULVERTS
531.01 Description.
This Section shall cover the work of furnishing corrugated metal structural plate pipe, arch pipes, and arches (coated and uncoated) of the sizes, plate thickness, and dimensions required by the plans and installing such at the locations shown by the pl ans or designated, all in conformity with these specifications to the lines and grades given. The corrugated metal plate pipe shall be full circle or other approved pipe shapes. Corrugated metal plate arches shall be part of circle construction anchored on footings, floor, or grillage of description shown on the plans.
531.02 Materials.
All materials shall conform to the provisions of Division 800, Materials. Specific reference is made to Section 841, Corrugated Metal Structural Plate for Pipe and Arches.
531.03 Construction Requi rements.
531.03 Construction Requirements.
a.General . The pipe or arch structure shall be carefully erected according to plans and erection drawings and true lines and grades, as given, on approved foundations. Arches shall be set in galvanized steel shapes on con crete or masonry footings, or on timber grillages or concrete floors built in full compliance with the specifications for Sections 501, 509, or 611. The structure shall be erected on its permanent foundations.
b.Erection . Structural plate pipe, pipe arch es, and arches shall be erected in their final position by connecting the plates with bolts at longitudinal and circumferential seams. Drift pins may be used to facilitate matching of holes. Each plate shall have legible identification numerals to designat e its position in the structures. All plates shall be placed in the order recommended by the manufacturer with joints staggered so that not more than three plates come together at any one point. All bolts shall be drawn tight before beginning the backfill and shall have not less than 200 nor more than 300 foot -pounds {270 nor more than 400 N•m} of torque in their final tightening for steel plate or not less than 100 nor more than 150 foot -pounds {135 nor more than 200 N•m} for aluminum plates.
c.Excavatio n, Bedding and Backfill . This work shall be performed as specified in Section 530.
d.Elongation or Strutting . All structural plate pipes of 60 inches {1500 mm} or larger diameter shall be shop- elongated or field strutted as shown on the plans. Strutting shall be accomplished prior to placing any embankment adjacent to the structure. Strutting will not be required where required elongation has been fabricated into the plates at the factory. Elongation or strutting of plate arch pipe will not be r equired. Elongated pipe shall be installed with the longer axis vertical.
531.04 Method of Measurement.
Corrugated metal structure plate pipe, arch pipe, and arch culverts, structure excavation, and foundation backfill will each be measured in the same manner as specified in Article 530.04.
531.05 Basis of Payment.
a.Unit Price Coverage . The length, determined as above described, will be paid for at the contract unit prices per meter for corrugated structural plate pipe, arch pipe, or arch culverts of the several sizes, as the case may be, which prices and payments shall constitute full compensation for furnishing, handling, erecting, installing, and backfilling the pipe or arches, and for all materials, labor, equipment, tools, and incidentals necessar y to complete this item, but will not constitute payment for any concrete, masonry, steel reinforcement, or excavation.
b.Payment will be made under Item No .: 531-A ___ inch {mm} , ___ inch {mm} Plate B.C. If Applicable Corrugated Steel or Aluminum P. I. If Applicable Structural Plate Pipe - per linear foot {meter} 531-B ___ inch {mm} Span, ___ inch {mm} Rise, ___ inch {mm} Plate B.C. If Applicable Corrugated Steel or Aluminum P.I. If Applicable Structural Plate Arch Pipe - per linear foot {meter } 531-C ___ inch {mm} Span, ___ inch {mm} Rise, ___ inch {mm} Plate B.C. If Applicable Corrugated Steel or Aluminum Structural Plate Arch - per linear foot {meter} SECTION 532 SLOTTED DRAINS
532.01 Description.
This Section sha ll cover the work of furnishing and installing a slotted drain which provides a drainage slot along the longitudinal section of the drain. This drainage slot shall be formed by either the angle slot design or the grate slot design as shown by plan details. Unless the plans or proposal designates
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 410–410 of 934.