|707.15 Corrugated Steel Box Culverts|
2. Sampling and/or Inspection Requirements:
All steel box culvert materials shall be inspected after delivery to the project for condition, coating, workmanship and quantity. Box dimensions, plate thickness, zinc coating, and fabrication requirements shall be reviewed for compliance with approved shop drawings. Assembly drawings shall be furnished by the manufacturer. Bolts and nuts shall be inspected for conformance with the requirements of the Section 4 Addendum of 707.03 (Field)
Individual pieces may be rejected for the following items of faulty workmanship:
Ragged or diagonal sheared edges
Dents or bends in the metal
Improperly aligned bolt holes
Coating peeling and flaking
Illegible markings on each plate (excluding stiffeners) including:
Name of fabricator
Specified zinc-coated plate thickness
Specified coating weight [mass],
Identification showing heat number and coating lot number.
The heat number is not required if the fabricator's records tie the coating lot number to a specific heat number and manufacturer.
Metal Pipe certified in accordance with Supplement 1019: for a list of manufacturers conforming with this supplement's requirements visit OMM website at
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. Method of Test:
AASHTO T 65: ASTM A90 A761. (OMM)
|Corrugations||6" x 2" (150 x 50)||15 x 5 ½" (380 x 140)|
|Rows of bolts for longitudinal seams||2||3|
|max spacing of rows||2" (50)||3" (75)|
|Rows of bolts for circumferential seam||1||1|
|Spacing of bolts in a row - max||10" (250)||16" (400)|
|Arch anchorage [connection to base]|
|Number of rows||1||1|
|Bolt spacing in rows - max||24" (600)||15" (380)|
Coating thickness (plates) Average 3.0 oz/ft2 (5.1 mils) - total both sides
Minimum 2.7 oz/ft2 (4.6 mils) - total both sides
Coating thickness fasteners See 707.03
Bolt hole sizes acceptable See 707.03