| MEMORANDUM TO: | Project Engineers |
| Project Design Engineers | |
| FROM: | T. V. Rountree, P. E. |
| State Bridge Design Engineer | |
| DATE: | February 14, 2001 |
| SUBJECT: | REVISED CSX RAILROAD GUIDELINES |
Attached are revised English and Metric Design Manual Figures 7-33 for use in detailing bridges over railroads. The revised figures reflect recent changes in CSX Railroad guidelines.
For multi-column piers, CSX now requires that the crashwall extend 2'-6" (760mm) beyond each exterior column which is equivalent to Norfolk Southern Railroad. CSX now specifies that the crashwall thickness for multi-column piers shall match the column diameter but shall never be less than 2'-6" (760mm).
This policy is effective immediately. The Design Manual will be updated at a later date.
TVR/JAD/crl
Attachments
1.English "Pier Crash Wall for Railroad Overheads".
2.Metric "Pier Crash Wall for Railroad Overheads".
