Riparian Corridor Unit 1a Columbia River - Hammond Marina
|
This area of shoreline consists of approximately 500 linear
feet on the Columbia River, adjacent to the Hammond Marina. This area
(see attached photo) is undeveloped and undisturbed by man. There
is evidence of natural erosion to the sandy beach caused by waves
from the Columbia River and tidal influence of the Pacific Ocean.
Inland, abutting the sandy beach area is overgrown vegetation consisting
of brush and trees. This area shall be protected with a 75-foot riparian
corridor setback to protect the natural vegetation in this location.
The 75-foot setback shall be measured: starting at the point where
the sandy beach recedes into brush, and going inland.
|
Riparian Corridor Unit 2a Columbia River - Carruthers
Park
|
This area is associated with Carruthers Park and consists of
approximately 400 linear feet of shoreline on the Columbia River.
The shoreline area has existing riprap (see attached photos) placed
on slope of the bank; plus an observation deck (see attached photos),
which extends slightly over the bank but not into the waters of the
Columbia River. The observation deck footings (see attached photo)
are on land, slightly back from the bank of the river. There is also
a foot trail (see attached photos) on the rise of the land, just back
from the "bank" of the river going both east and west. The location
of the observation deck bisects the foot trail. A 75-foot riparian
setback is imposed to protect the remaining natural riparian vegetation.
Repairs to the riprap and the observation deck shall be in compliance
with the City's Development Code.
|
Riparian Corridor Unit 3 Columbia River: NW 13th Street
to mouth of Skipanon
75-foot riparian corridor
|
Riparian Corridor Unit 4 Columbia River: Mouth of Skipanon
River to Youngs Bay Bridge
75-foot riparian corridor
|
Riparian Corridor Unit 5 Columbia River: Youngs Bay Bridge
to Lewis and Clark River Bridge
75-foot riparian corridor
|
Riparian Corridor Unit 6(a-1) Skipanon River Channel East
Bank
|
East Bank Skipanon River. This area of concern consists of natural
riparian vegetation along this portion of the east bank of the Skipanon
River. There is a gravel access road on top of an existing dike with
natural vegetation on both sides of the dike. A 50-foot riparian setback
is imposed, starting on the east edge of the gravel access road and
measuring 50 feet eastward to protect the riparian vegetation in this
location. Maintenance and repair of the existing dike and gravel access
road are allowed and shall be in compliance with the City's Development
Code.
|
Riparian Corridor Unit 6(a-2) Skipanon River Channel West
Bank
|
West Bank Skipanon River. This area is located on the west bank
of the Skipanon River channel before the bend of the river and the
Warrenton Marina. Oregon Administrative Rules 660-023(5) & (8)(c)
allows no riparian setbacks to be imposed where water-dependent/water-related
uses and activities are adjacent to the shoreland vegetation. There
is an existing water-dependent business on the west side of the river,
which is in the City's water-dependent/water-related zone (I-2). No
riparian setback is required for this area.
|
Riparian Corridor Unit 6(b) Skipanon City Park and Trail
|
This area is adjacent to the Skipanon City Park and trail (see
photos). Riparian vegetation exists in this area at varying widths
with a trail constructed of asphalt (approximately two-feet wide).
This trail is bordered on both sides with natural vegetation. The
trail starts at the City park and heads north to the Skipanon River
Bridge. There is an aged, existing dock with a portable boat ramp
(see photo) located approximately halfway between the City park and
the bridge. The location of the dock and ramp rests on the riparian
vegetation between the trail and the river. The riparian vegetation
between the trail and the river shall have a 50-foot riparian setback
to protect the natural vegetation.
|
Riparian Corridor Unit 6(c) Skipanon River Islands
|
These five small islands (see photo) are zoned aquatic conservation
(A-2), and are undeveloped. They are located in the Skipanon River,
south of the Skipanon Bridge. The Skipanon River is affected by the
tidal influence of the Pacific Ocean, which causes several of these
islands to be under water during high tide. These five islands shall
have a 50-foot riparian setback to protect the natural riparian vegetation.
|
Riparian Corridor Unit 6(d) Skipanon City Park and Trail
|
This area is in the same vicinity as Unit 6(b) and shall be
protected by placing a 50-foot riparian setback between the existing
trail and the Skipanon River.
|
Riparian Corridor Units 8a & 8b Unnamed Tributary
to the Upper Skipanon
0-foot riparian corridor; 50-foot riparian corridor
|
Riparian Corridor Unit 12(a) Shilo Inn and Mulan Restaurant
Holbrook Slough - East and West
|
This area of Holbrook Slough (see photos) is directly behind
Shilo Inn and Mulan Restaurant. There is undeveloped land on the west
side of the slough, which contains natural vegetation, as well as
having a dike and tidegate immediately north of the access roadway
behind the Mulan Restaurant.
Riparian vegetation on both sides of the slough is dominated
by invasive and non-invasive vegetation. In addition, a roadway (see
photos) lies directly behind the Mulan Restaurant providing ingress
and egress to the commercial activities and uses immediately adjacent
to the slough.
A 50-foot riparian setback is imposed on the west side of the
slough; however, maintenance and repair of a compensatory wetland
mitigation area is allowed. Maintenance and repair of the existing
dike and tidegate within the riparian area is allowed.
On the east side of the lower section of Holbrook Slough, riparian
vegetation within the 50-foot buffer shall be protected with the following
exceptions:
* Maintenance and repair of existing buildings (Shilo Inn and
Mulan Restaurant) is not restricted;
* Maintenance and repair of an existing road is not restricted;
and
* Expansion and extension of an existing road is not restricted.
|
Riparian Corridor Unit 12(b) Holbrook Slough - Youngs
Bay Plaza
|
This portion (see photo) of Holbrook Slough is located behind
the Youngs Bay Plaza shopping center and by compensatory wetland mitigation
sites.
Riparian vegetation on the Youngs Bay Plaza (east side of the
slough) side of the slough is in poor condition: dominated by invasive
plants, subject to regular mowing, and adjoins a busy commercial area.
The east side of the slough has existing riparian vegetation in a
strip of varying width between the pavement and the high-water line
of Holbrook Slough. On this side of the slough, riparian vegetation
should be protected only between the edge of the existing pavement,
as it currently exists (2006), and the slough shoreline for a 50-foot
riparian setback to protect the remaining natural vegetation within
this corridor.
Riparian vegetation on the west side of the slough exists in
various compensatory wetland mitigation sites, stormwater detention
ponds, and other undeveloped areas. Riparian vegetation in this section
of Holbrook Slough will be protected with a 50-foot riparian corridor
setback. Maintenance and repair is allowed for the compensatory wetland
mitigation sites and stormwater detention or settling features, which
exist within this riparian corridor.
|
Riparian Corridor Unit 15 Coffenbury Lake
50-foot riparian corridor
Riparian Corridor Unit 16 Crabapple Lake
50-foot riparian corridor
|
*
|
Please refer to Section 4.4 of the ESEE document for special
allowances for the Warrenton High School property.
|