[Code of Federal Regulations]

[Title 33, Volume 3]

[Revised as of July 1, 2006]

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]