707.21, 707.22 Corrugated Aluminum Alloy Conduits

1. Specification:

707.21, 707.22 C&MS.

S 1019

2. Sampling and/or Inspection Requirements:

All pipe shall be inspected after delivery to the project for condition, size, gauge, workmanship and quantity. Dimensions shall be checked against the pertinent Table of the 707.21, 707.22 Addendum. Seam fabrication requirements shall be checked in accordance with this Addendum. (Field)

Individual pieces may be rejected for the following items of faulty workmanship:

Uneven laps

Elliptical shaping

Variation from straight centerline

Ragged or diagonal sheared edges

Loose, unevenly lined or spaced rivets or spot welds

Poorly formed rivet heads or improperly constructed lock seams

Improperly cut or badly burred

Illegible brand

Lack of rigidity

Dents or bends in the metal

Illegible Markings:

Name of the aluminum sheet manufacturer

Pipe fabricator

Alloy and Temper

Specified thickness

Date of fabrication

AASHTO spec number [M 196]

Certification Program:

Metal Pipe certified in accordance with Supplement 1019: for a list of manufacturers conforming with this supplement's requirements visit OMM website at

http://www.dot.state.oh.us/Divisions/ConstructionMgt/Materials/Pages/MetalPipeCertified.aspx

Certified materials will be shipped using the TE-24 electronic documentation system. A bill of lading defining individual components incorporated in the construction item shall accompany the shipment in addition to a copy of the TE-24.

No samples are required of materials delivered to the project site. Random samples may be obtained by ODOT/OMM Quality Assurance Inspectors at the discretion of the Office of Materials Management (OMM).

3. Methods of Test:

(OMM)

AASHTO M196

4. Addendum:

Nominal Inside Diameter Nominal Pipe Arch ( corrugation Depth) 1/4" Corrugation Depth " Corrugation Depth 1" Corrugation Depth
Inches mm Inches mm Inches (mm) Inches (mm) Inches (mm)
6 150     1/4 (6.5) x 1.5"(38)    
8 200     1/4 (6.5) x 1.5"(38)    
10 250     1/4 (6.5) x 1.5"(38)    
12 300       " (13) x 2 11/6"(68)  
15 375 17 x13 430 x 340   " (13) x 2 11/6"(68)  
18 450 21 x 15 530 x 380   " (13) x 2 11/6"(68)  
21 525 24 x 18 610 x 460   " (13) x 2 11/6"(68)  
24 600 28 x 20 710 x 510   " (13) x 2 11/6"(68)  
27 675       " (13) x 2 11/6"(68)  
30 750 35 x 24 870 x 610   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
36 900 42 x 29 1060 x 740   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
42 1050 49 x 33 1240 x 480   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
48 1200 57 x 38 1440 x 970   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
54 1350 64 x 43 1620 x 1100   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
60 1500 71 x 47 1800 x 1200   " (13) x 2 11/6"(68) 1"(25) x 3"(75)
66 1650       " (13) x 2 11/6"(68) 1"(25) x 3"(75)
72 1800       " (13) x 2 11/6"(68) 1"(25) x 3"(75)

Seams will be continuous lock seams. Seams will be no further than 30" (760 mm) apart.

The average inside diameter of circular pipe and pipe to be reformed into pipe arches shall not vary more than 1 percent or 1.2 in. (12.7mm), whichever is greater, from the nominal diameter when measured on the inside crest of the corrugations.

Coupling Bands:

Minimum Thickness will be .060" (1.52 mm). This thickness is an ODOT specification and should be checked. Coupling bands shall be of the same aluminum alloy as the pipe.

Requirements for Perforations:

Maximum Heights "H" of the Centerline of the Uppermost Rows Above the Bottom of the Invert and Minimum Lengths of Inner Surface "L" of Unperforated Segments.

Diameter of Pipe Min. Rows of Perforations H L
In. (mm)   In. (mm) In. (mm)
4 100 2 1-13/16 46 2-9/16 64
6 150 4 2-3/4 69 3-7/8 98
8 200 4 3-11/16 92 5-1/8 130
10 250 4 4-9/16 115 6-7/16 164
12 300 6 5-1/2 138 7-11/16 195
15 375 6 6-7/8 172 9-5/8 244
18 450 6 8-1/4 207 11-9/16 294
21 525 6 9-5/8 242 13-1/2 343
24 and 600

larger

`* ** ***

 

* 8 minimum but not over 6 in. (150 mm) spacing between rows.

** H (Max) = 0.46 D = Internal Diameter

* ** L (Min) - 0.64 D