[Code of Federal Regulations]
[Title 33, Volume 3]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR222.3]

[Page 220-221]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
 CHAPTER II--CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF 
                                 DEFENSE
 
PART 222_ENGINEERING AND DESIGN--Table of Contents
 
Sec.  222.3  Clearances for power and communication lines over reservoirs.

    (a) Purpose. This regulation prescribes the minimum vertical 
clearances to be provided when relocating existing or constructing new 
power and communication lines over waters of reservoir projects.
    (b) Applicability. This regulation applies to all field operating 
agencies having Civil Works responsibilities.
    (c) References. (1) ER 1180-1-1 (Section 73).
    (2) National Electrical Safety Code (ANSI C2), available from IEEE 
Service Center, 445 Hoes Lane, Piscataway, N.J. 08854.
    (d) Definitions--(1) Design high water level. The design high water 
level above which clearances are to be provided shall be either: (i) The 
elevation of the envelope profile of the 50 year flood, or flood series, 
routed through the reservoir with a full conservation pool after 50 
years of sedimentation, or (ii) the elevation of the top of the flood 
control pool, whichever is higher.

[[Page 221]]

    (2) Low point of line. The low point of the line shall be the 
elevation of the lowest point of the line taking into consideration all 
factors including temperature, loading and length of spans as outlined 
in the National Electrical Safety Code.
    (3) Minimum vertical clearance. The minimum vertical clearance shall 
be the distance from the design high water lever (paragraph (d)(1) of 
this section) to the low point of the line (paragraph (d)(2) of this 
section).
    (e) Required clearances. Minimum vertical clearances for power and 
communication lines over reservoirs shall not be less than required by 
section 23, rule 232 of the latest revision of the National Electrical 
Safety Code (ANSI C2).
    (1) In general, minimum vertical clearances shall not be less than 
shown in Table 232-1, Item 7, of ANSI C2, even for reservoirs or areas 
not suitable for sailboating or where sailboating is prohibited.
    (2) If clearances not in accordance with Table 232-1 of ANSI C2 are 
proposed, justification for the clearances should be provided.
    (f) Navigable waters. For parts of reservoirs that are designated as 
navigable waters of the United States, greater clearances will be 
provided if so required. The clearances required over navigable waters 
are covered by 33 CFR 322.5(i)(2) and are not affected by this 
regulation.

[43 FR 14013, Apr. 4, 1978. Redesignated at 60 FR 19851, Apr. 21, 1995]