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} 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
532.05 Basis of Payment.
which design to use or requires a special design, the Contractor shall have the option to select either design, but once selected, the same design shall be used throughout the project. When required by the plans, th e Contractor shall furnish and install a specified special design slotted drain. Also when required by the plans, the Contractor shall furnish and install a special design slotted drain which provides a variable height drainage slot along the longitudinal section of the drain.
532.02 Materials.
The materials for the slotted drain shall meet the requirements shown on Special Drawing No. CSP-532 and the requirements given in this Section. The Department has established a list of products approved for use. These products can be found on List II -16, SLOTTED DRAIN PIPE, of the Department's manual, "Materials, Sources, and Devices With Special Acceptance Requirements" (available from the Bureau of Materials and Tests). The Contractor may choose from any of these p roducts, unless otherwise noted. Backfill material shall be Class A concrete meeting the requirements of Section 501. Job Control test cylinders will not be required for this concrete.
532.03 Construction Requirements.
a.General .
1.Connections to Exist ing Structures. Connections to existing structures may require the use of a transitional fitting and/or section(s) of pipe to provide a suitable connection without damage to the grates or drains, etc. of the structures.
2.End Seals . When the drain or pipe begins or terminates without a connection to other pipes or drainage structures, the pipe end shall be sealed or plugged with a suitable cap as shown on plan details, properly connected to provide a waterproof connection.
b.Slotted Drain Pipe . This type pipe is designed to be placed with the slotted drain at or near the pavement, shoulder, or median surface. The general construction requirements of Article 530.03 are applicable except as modified by the following: • Excavation shall be kept as nearly as possible to the minimum width, depth, and length shown on the plans. • The pipe shall be supported or held in place in such a manner as to permit flow of the concrete backfill material around the pipe. • The drainage slot shall be protected during installati on by a removable wood strip, heavy duty tape, or other suitable material adequately performing the intended function, affixed to the slot to prevent infiltration of material into the pipe. After finishing the surface, the protective covering shall be remo ved. • Under no circumstances shall any portion of the slot extend above the paving material or curb and gutter section. Joints for corrugated steel slotted drain pipe shall be made using approved connecting bands meeting the requirements of Subarticle 850.0 2(d).
532.04 Method of Measurement.
The accepted length of slotted drain laid as ordered will be measured in linear feet along the bottom flowline, or invert, of the slotted drain complete in place. Connections to other structures (i.e. elbows, pipe, joint s, etc.) will not be measured for payment unless shown otherwise on the plans. Excavation and backfill will not be measured for payment.
532.05 Basis of Payment.
a.Unit Price Coverage . Slotted Drain, measured as noted above, will be paid for at the contr act unit price bid complete in place, which shall be full compensation for fabricating, furnishing and installing a slotted drain meeting the requirements noted herein and the details shown on the plans (this includes a variable height grate or special des ign drain when required), for furnishing and installing connections to other structures (when required), for all excavation, backfill, satisfactory disposal of surplus materials, and for all equipment, tools, labor, and incidentals necessary to complete th e work.
533.01 Description.
b.Payment will be made under Item No .: 532-A ___ inch {mm} * Slotted Drain Pipe ( ** ) - per linear foot {meter} * Specify " Corrugated Steel", "Concrete", "( Specify the Special Design )", etc., only if applicable. ** Specify "With Variabl e Height Grate", etc., if applicable. SECTION 533 STORM SEWERS
533.01 Description.
This Section shall cover the work of furnishing and constructing storm sewers of the kind, strength, and size pipe provided in the proposal, in accor dance with the requirements of these specifications and installing such sewers at the locations shown on the plans or designated and in conformity with established lines and grades. These items shall also include the furnishing and construction of such joi nts, necessary cutting and connections to other pipe, catch basins, endwalls, etc., as may be required to complete the work shown on the plans or directed.
533.02 Materials.
a.General. Materials furnished for use shall conform to the appropriate provisio ns of Division 800, Materials, with specific reference made to Section 854.
b.Abbreviations: Concrete Pipe P.C. for plain concrete
R.C. for reinforced concrete Corrugated Metal C.M. for any acceptable corrugated metal pipe covered by these specifications Protective Coating C. for any protective coating of metal pipe allowed by these specifications Paved Invert P.I. Corrugated Steel C.S. for Plain Corrugated Steel
C.C.S. for Coated Corrugated Steel
C.C.S.P.I. for Coated C.S. Paved Invert Corrugated Aluminum C.A. for Plain Corrugated Aluminum
C.C.A. for Coated C.A.
C.C.A.P.I. for Coated C.A. Paved Invert Smooth Lined S.L. for Smooth Lined
C.S.L.C.M. for Coated, Smooth Lined Corrugated Metal
C.S.L.C.S. for Coated, Smooth Lined Corrugated Steel
C.S.L.C.A. for Coated, Smooth Lined Corrugated Aluminum Smooth Flow S.F. for Smooth Flow
C.S.F.C.M. for Coated, Smooth Flow Corrugated Metal
C.S.F.C.S. for Coated, Smooth Flow Corrugated Steel
C.S.F.C.A. for Coated, Smooth Flow Corrugated Aluminum Concrete Lined C.L.
C.C.L.C.S. for Coated C.L. Corrugated Steel Vitrified Clay V.C. for Vitrified Clay High Density Polyethylene HDPE for High Density Polyethylene High Performance Polypropylene PP for High Performance Polypropylene
c.Optional Types of Pipes Provided a specific type of pipe is not specified by the plans or proposal, the Contractor will be permitted to install any of the optional types of pipe herein. Substitutions will only be allowed with hydraulica lly equivalent pipes. The hydraulic equivalence of optional types of pipes will be shown on the plans. Optional types of pipe shall meet the following criteria:
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 411–412 of 934.