915.01 980 SECTION 915 – METALLIC PIPE
915.01 Ductile Iron or Cast Iron Pipe ................................ ...................... 980
915.02 Corrugated Metal Pipe (CMP) ................................ ..................... 980
915.03 Polymer Pre -coated, Corrugated Steel Pipe, Culverts, and
Underdrains ................................ ................................ .................. 981
915.01 Ductile Iron or Cast Iron Pipe
Provide ductile iron pipe conforming to ASTM A716 for the specified diameters and strength classes. Unless otherwise specified, either smooth, corrugated, or ribbed pipe may be furnished. For pipe diameters i n excess of 48 inches, conform to ANSI Standard for Cast Iron Pit Cast Pipe, or as otherwise specified in the Contract, for the specified diameter and strength class. Provide cast iron drain pipe conforming to ASTM A74. Unless otherwise specified, provi de ductile iron pressure pipe for water lines or sewer construction conforming to the requirements of ASTM A377 for the diameters and working pressures specified.
915.02 Corrugated Metal Pipe (CMP)
A.Corrugated Steel Pipe, Pipe Arches, and Underdrains Provide corrugated steel pipe from the Department’s Producer List, pipe arches, or underdrains, including special sections, such as elbows and flared ends, that conform to AASHTO M 36 , aluminum -coated Type 2 meeting AASHTO M 274. Special secti ons shall be the same thickness as the pipe, arch, or underdrain to which they are joined. Furnish shop - formed elliptical pipe and shop -strutted pipe only where shown on the Plans.
B.Structural Plate Corrugated Steel and Aluminum Structures Corrugated aluminum alloy structural plate for pipe, pipe arches, and arches shall conform to the requirements of AASHTO M 219. 915.03 981 C. Bituminous Coating When material supplied for any of the items specified above are to be bituminous -coated, ensure that the meta l to be coated is free of grease, dirt, and other contaminants. Bituminous coating and paving shall conform to the requirements of AASHTO M 190. Apply the coating in accordance with the manufacturer’s recommended procedures and as directed by the Departm ent.
915.03 Polymer Pre -coated, Corrugated Steel Pipe, Culverts, and
Underdrains Provide polymer pre -coated corrugated steel pipe conforming to AASHTO M 245, Grade 250/250, unless otherwise specified. 916.01 982 SECTION 916 – HIGHWAY SIGNING MATERIALS
916.01 General Requirements ................................ ................................ .. 982
916.02 Aluminum and Composite Material Signs ................................ ... 982
916.03 Steel ................................ ................................ .............................. 983
916.04 Stainless Steel ................................ ................................ .............. 984
916.05 Fabrication ................................ ................................ ................... 984
916.06 Reflective Sheeting ................................ ................................ ...... 988
916.07 Legends, Borders, and Accessories ................................ .............. 988
916.08 Flexible Delineator Posts ................................ ............................. 989
916.01 General Requirements
In constructing highway signs, use all new parts that conform to the requirements of these Specifications, the Plans, and the AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals, latest edition. To request any departures from the materials and fabrication shown on the Plans or specified in the Specifications, submit details of such departures, and the reasons they are necessary, to the Engineer for approval. Do not make any such departures without the Engineer’s prior written approval. Furnish the Department notarized certified copies of the chemical and physical properties o f all materials incorporated in the structures and accessories that are required for this work.
916.02 Aluminum and Composite Material Signs
Provide aluminum and composite materials conforming to the requirements in Table 916.02 -1, unless otherwise specified.
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 989–990 of 1,072.