Definition Of Navigable Waters Of The U.S
Posted: Tue Feb 15, 2011 11:39 am
33 CFR Part 329
Definition of
Navigable Waters of the US
AUTHORITY: 33 U.S.C. 401 et seq.
Section 329.1 - Purpose
This regulation defines the term "navigable waters of the United States" as it is used to
define authorities of the Corps of Engineers. It also prescribes the policy, practice and
procedure to be used in determining the extent of the jurisdiction of the Corps of
Engineers and in answering inquiries concerning "navigable waters of the United States."
This definition does not apply to authorities under the Clean Water Act which definitions
are described under 33 CFR Parts 323 and 328.
Section 329.2 - Applicability
This regulation is applicable to all Corps of Engineers districts and divisions having civil
works responsibilities.
Section 329.3 - General policies
Precise definitions of "navigable waters of the United States" or "navigability" are
ultimately dependent on judicial interpretation and cannot be made conclusively by
administrative agencies. However, the policies and criteria contained in this regulation
are in close conformance with the tests used by Federal courts and determinations made
under this regulation are considered binding in regard to the activities of the Corps of
Engineers.
Section 329.4 - General definition
Navigable waters of the United States are those waters that are subject to the ebb and
flow of the tide and/or are presently used, or have been used in the past, or may be
susceptible for use to transport interstate or foreign commerce. A determination of
navigability, once made, applies laterally over the entire surface of the waterbody, and is
not extinguished by later actions or events which impede or destroy navigable capacity.
Section 329.5 General scope of determination
The several factors which must be examined when making a determination whether a
waterbody is a navigable water of the United States are discussed in detail below.
Generally, the following conditions must be satisfied:
a. Past, present, or potential presence of interstate or foreign commerce;
b. Physical capabilities for use by commerce as in paragraph (a) of this section; and
c. Defined geographic limits of the waterbody.
Section 329.6 - Interstate or foreign commerce
a. Nature of commerce: type, means, and extent of use. The types of commercial use
of a waterway are extremely varied and will depend on the character of the
region, its products, and the difficulties or dangers of navigation. It is the
waterbody's capability of use by the public for purposes of transportation of
commerce which is the determinative factor, and not the time, extent or manner of
that use. As discussed in Section 329.9 of this Part, it is sufficient to establish the
potential for commercial use at any past, present, or future time. Thus, sufficient
commerce may be shown by historical use of canoes, bateaux, or other frontier
craft, as long as that type of boat was common or well-suited to the place and
period. Similarly, the particular items of commerce may vary widely, depending
again on the region and period. The goods involved might be grain, furs, or other
commerce of the time. Logs are a common example; transportation of logs has
been a substantial and well-recognized commercial use of many navigable waters
of the United States. Note, however, that the mere presence of floating logs will
not of itself make the river "navigable"; the logs must have been related to a
commercial venture. Similarly, the presence of recreational craft may indicate that
a waterbody is capable of bearing some forms of commerce, either presently, in
the future, or at a past point in time.
b. Nature of commerce: interstate and intrastate. Interstate commerce may of course
be existent on an intrastate voyage which occurs only between places within the
same state. It is only necessary that goods may be brought from, or eventually be
destined to go to, another state. (For purposes of this regulation, the term
"interstate commerce" hereinafter includes "foreign commerce" as well.)
Section 329.7 - Intrastate or interstate nature of waterway
A waterbody may be entirely within a state, yet still be capable of carrying interstate
commerce. This is especially clear when it physically connects with a generally
acknowledged avenue of interstate commerce, such as the ocean or one of the Great
Lakes, and is yet wholly within one state. Nor is it necessary that there be a physically
navigable connection across a state boundary. Where a waterbody extends through one or
more states, but substantial portions, which are capable of bearing interstate commerce,
are located in only one of the states, the entirety of the waterway up to the head (upper
limit) of navigation is subject to Federal jurisdiction.
Section 329.8 - Improved or natural conditions of the waterbody
Determinations are not limited to the natural or original condition of the waterbody.
Navigability may also be found where artificial aids have been or may be used to make
the waterbody suitable for use in navigation.
a. Existing improvements: artificial waterbodies.
1. An artificial channel may often constitute a navigable water of the United
States, even though it has been privately developed and maintained, or
passes through private property. The test is generally as developed above,
that is, whether the waterbody is capable of use to transport interstate
commerce. Canals which connect two navigable waters of the United
States and which are used for commerce clearly fall within the test, and
themselves become navigable. A canal open to navigable waters of the
United States on only one end is itself navigable where it in fact supports
interstate commerce. A canal or other artificial waterbody that is subject to
ebb and flow of the tide is also a navigable water of the United States.
2. The artificial waterbody may be a major portion of a river or harbor area
or merely a minor backwash, slip, or turning area (see paragraph 329.12(b)
of this Part).
3. Private ownership of the lands underlying the waterbody, or of the lands
through which it runs, does not preclude a finding of navigability.
Ownership does become a controlling factor if a privately constructed and
operated canal is not used to transport interstate commerce nor used by the
public; it is then not considered to be a navigable water of the United
States. However, a private waterbody, even though not itself navigable,
may so affect the navigable capacity of nearby waters as to nevertheless be
subject to certain regulatory authorities.
b. Non-existing improvements, past or potential. A waterbody may also be
considered navigable depending on the feasibility of use to transport interstate
commerce after the construction of whatever "reasonable" improvements may
potentially be made. The improvement need not exist, be planned, nor even
authorized; it is enough that potentially they could be made. What is a
"reasonable" improvement is always a matter of degree; there must be a balance
between cost and need at a time when the improvement would be (or would have
been) useful. Thus, if an improvement were "reasonable" at a time of past use, the
water was therefore navigable in law from that time forward. The changes in
engineering practices or the coming of new industries with varying classes of
freight may affect the type of the improvement; those which may be entirely
reasonable in a thickly populated, highly developed industrial region may have
been entirely too costly for the same region in the days of the pioneers. The
determination of reasonable improvement is often similar to the cost analyses
presently made in Corps of Engineers studies.
Section 329.9 - Time at which commerce exists or determination is made
a. Past use. A waterbody which was navigable in its natural or improved state, or
Definition of
Navigable Waters of the US
AUTHORITY: 33 U.S.C. 401 et seq.
Section 329.1 - Purpose
This regulation defines the term "navigable waters of the United States" as it is used to
define authorities of the Corps of Engineers. It also prescribes the policy, practice and
procedure to be used in determining the extent of the jurisdiction of the Corps of
Engineers and in answering inquiries concerning "navigable waters of the United States."
This definition does not apply to authorities under the Clean Water Act which definitions
are described under 33 CFR Parts 323 and 328.
Section 329.2 - Applicability
This regulation is applicable to all Corps of Engineers districts and divisions having civil
works responsibilities.
Section 329.3 - General policies
Precise definitions of "navigable waters of the United States" or "navigability" are
ultimately dependent on judicial interpretation and cannot be made conclusively by
administrative agencies. However, the policies and criteria contained in this regulation
are in close conformance with the tests used by Federal courts and determinations made
under this regulation are considered binding in regard to the activities of the Corps of
Engineers.
Section 329.4 - General definition
Navigable waters of the United States are those waters that are subject to the ebb and
flow of the tide and/or are presently used, or have been used in the past, or may be
susceptible for use to transport interstate or foreign commerce. A determination of
navigability, once made, applies laterally over the entire surface of the waterbody, and is
not extinguished by later actions or events which impede or destroy navigable capacity.
Section 329.5 General scope of determination
The several factors which must be examined when making a determination whether a
waterbody is a navigable water of the United States are discussed in detail below.
Generally, the following conditions must be satisfied:
a. Past, present, or potential presence of interstate or foreign commerce;
b. Physical capabilities for use by commerce as in paragraph (a) of this section; and
c. Defined geographic limits of the waterbody.
Section 329.6 - Interstate or foreign commerce
a. Nature of commerce: type, means, and extent of use. The types of commercial use
of a waterway are extremely varied and will depend on the character of the
region, its products, and the difficulties or dangers of navigation. It is the
waterbody's capability of use by the public for purposes of transportation of
commerce which is the determinative factor, and not the time, extent or manner of
that use. As discussed in Section 329.9 of this Part, it is sufficient to establish the
potential for commercial use at any past, present, or future time. Thus, sufficient
commerce may be shown by historical use of canoes, bateaux, or other frontier
craft, as long as that type of boat was common or well-suited to the place and
period. Similarly, the particular items of commerce may vary widely, depending
again on the region and period. The goods involved might be grain, furs, or other
commerce of the time. Logs are a common example; transportation of logs has
been a substantial and well-recognized commercial use of many navigable waters
of the United States. Note, however, that the mere presence of floating logs will
not of itself make the river "navigable"; the logs must have been related to a
commercial venture. Similarly, the presence of recreational craft may indicate that
a waterbody is capable of bearing some forms of commerce, either presently, in
the future, or at a past point in time.
b. Nature of commerce: interstate and intrastate. Interstate commerce may of course
be existent on an intrastate voyage which occurs only between places within the
same state. It is only necessary that goods may be brought from, or eventually be
destined to go to, another state. (For purposes of this regulation, the term
"interstate commerce" hereinafter includes "foreign commerce" as well.)
Section 329.7 - Intrastate or interstate nature of waterway
A waterbody may be entirely within a state, yet still be capable of carrying interstate
commerce. This is especially clear when it physically connects with a generally
acknowledged avenue of interstate commerce, such as the ocean or one of the Great
Lakes, and is yet wholly within one state. Nor is it necessary that there be a physically
navigable connection across a state boundary. Where a waterbody extends through one or
more states, but substantial portions, which are capable of bearing interstate commerce,
are located in only one of the states, the entirety of the waterway up to the head (upper
limit) of navigation is subject to Federal jurisdiction.
Section 329.8 - Improved or natural conditions of the waterbody
Determinations are not limited to the natural or original condition of the waterbody.
Navigability may also be found where artificial aids have been or may be used to make
the waterbody suitable for use in navigation.
a. Existing improvements: artificial waterbodies.
1. An artificial channel may often constitute a navigable water of the United
States, even though it has been privately developed and maintained, or
passes through private property. The test is generally as developed above,
that is, whether the waterbody is capable of use to transport interstate
commerce. Canals which connect two navigable waters of the United
States and which are used for commerce clearly fall within the test, and
themselves become navigable. A canal open to navigable waters of the
United States on only one end is itself navigable where it in fact supports
interstate commerce. A canal or other artificial waterbody that is subject to
ebb and flow of the tide is also a navigable water of the United States.
2. The artificial waterbody may be a major portion of a river or harbor area
or merely a minor backwash, slip, or turning area (see paragraph 329.12(b)
of this Part).
3. Private ownership of the lands underlying the waterbody, or of the lands
through which it runs, does not preclude a finding of navigability.
Ownership does become a controlling factor if a privately constructed and
operated canal is not used to transport interstate commerce nor used by the
public; it is then not considered to be a navigable water of the United
States. However, a private waterbody, even though not itself navigable,
may so affect the navigable capacity of nearby waters as to nevertheless be
subject to certain regulatory authorities.
b. Non-existing improvements, past or potential. A waterbody may also be
considered navigable depending on the feasibility of use to transport interstate
commerce after the construction of whatever "reasonable" improvements may
potentially be made. The improvement need not exist, be planned, nor even
authorized; it is enough that potentially they could be made. What is a
"reasonable" improvement is always a matter of degree; there must be a balance
between cost and need at a time when the improvement would be (or would have
been) useful. Thus, if an improvement were "reasonable" at a time of past use, the
water was therefore navigable in law from that time forward. The changes in
engineering practices or the coming of new industries with varying classes of
freight may affect the type of the improvement; those which may be entirely
reasonable in a thickly populated, highly developed industrial region may have
been entirely too costly for the same region in the days of the pioneers. The
determination of reasonable improvement is often similar to the cost analyses
presently made in Corps of Engineers studies.
Section 329.9 - Time at which commerce exists or determination is made
a. Past use. A waterbody which was navigable in its natural or improved state, or