DD Form 3012, Tunnel Reconnaissance Report, February 2016-2025

1. Click ‘Get Form’ to open the DD Form 3012 in the editor.
2. Begin by entering the date in the YYYYMMDD format at the top of the form. This is crucial for record-keeping.
3. Fill in the 'TO' section with the headquarters ordering reconnaissance and your details in the 'FROM' section, including name, grade, and unit.
4. Complete sections regarding route or line, initial point (including highway or railroad), and terminal point. Ensure accuracy in map series and sheet number.
5. Provide grid reference details such as coordinates and location from the nearest town, including distance and direction.
6. Indicate tunnel specifics like type (subaqueous, rock, soil), length, clearance, grade (vertical/horizontal), lining material, and portal material.
7. Assess tunnel condition by checking appropriate boxes for bypassability and alternate crossing options. Include any geological data as necessary.
8. Finally, add remarks if needed and attach photographs where indicated. Review all entries for completeness before saving your work.

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