99-104905City of Federal Way
Comrr:.mity Development Services
33530 1st Way S'
Federal Way, WA 98003-6210
Ph: 253.661.4000 Fax: 253.661.4129
l•
Building - Single Family Permit #:99 - 104905 - 00 - SF
Inspection request line: 253.661.x' 140
(3:30pm cut-off for next day inspections)
Project Name: RIVERSTONE HOMES
Project Address: 210 SW 295TH PL Parcel Number: 119600 3740
Project Description: NSF - W/MECHANICAL AND PLUBINt, WITH ATTACHED GARAGE
Owner
Applicant
Contractor
nder
RIVERSTONE HOMES, INC.
RIVERSTONE HOMES, INC.
RIVERSTONE HOMES, INC.
RIVERSTONE HOMES, INC.
3408 52ND PL NE
3408 52ND PL NE
RIVERHIOI IQW (11/09/00)
3408 52ND PL NE
TACOMA WA 98422-4524
TACOMA WA 98422-4524
3408 52ND PL NE
TACOMA WA 98422-4524
height of Structure ..............................................
34.25
TACOMA WA 98422-4524
Yes
Includes:
Census category: 101 -New si
#1 #2
#3
#4
Occupancy Group:
R-3 U-1
Basic Plan .................................................
No
Construction Type:
Type V - N Type V - N
Construction Type#2 ..........................................
Type V - N
Occupancy Load:
Floor Area (Sq. Ft.):
Garage Proposed Sq. Feet ....................................
704
1 st Floor Proposed Sq. Feet .................................
1767
2nd Floor Proposed Sq. Feet ................................
1343
Basement Proposed Sq. Feet..................................A"
) C, 80
Basic Plan .................................................
No
Census Category .................................................
101 - New single family Nous(
Construction Type#2 ..........................................
Type V - N
Deck Proposed Sq. Feet.......................................339
Garage Proposed Sq. Feet ....................................
704
height of Structure ..............................................
34.25
Mechanical.................................................
Yes
Occupancy Group#1...........................................
R-3
Occupancy Group#2...........................................
U-1
Other Proposed Sq. Feet ......................................
114
Plumbing .................................................
Yes
Total Building Sq. Peet........................................495'S'5
9. 'ZA'
Total Proposed Sq. Feet .......................................
4933
Zoning Designation .............................................
RS 9.6
Description
Quantity
Dishwashers
L
Lavatories
Sinks
f 1
Description
Quantity
Fans — �F
Ranges
f 1
Plumbing Fixtures
Description Quantify Description Quantity
Laundry Washer Outlets L� Bathtubs ��
Water Heaters Heaters 2 Showers 1F
Water Closets 4 J
Mechanical Fixtures
F_DescriptionQuantity Description IQuI anti
Ducts � Furnaces
u Gas Logs � Hoods
CONDITIONS:
Private road must be widened to minimum 20' of pavement for the length of the property per approved plan.
Relocate/reconstruct ditches to previous or better condition. Public Works approval required prior to final
inspection.
Service connections for electrical and communication facilities shall be placed underground per section 16-48 of
the Federal Way City Code.
Prior to any clearing or grading on a lot, the owner/builder shall install temporary erosion/sedimentation control
facilities approved by the City. These facilities must insure that dirt or sediment laden water does not enter the
public drainage system, adjacent lots or public streets. The owner/builder bears the responsibility to maintain the
facilities in proper working order, replacing as necessary. The facilities may be removed only after such time as
construction is complete and landscapine is installed. See attached for standards and site plan for location of silt
fencing.
The associated lot line elimination permit must be approved prior to final inspection.
No gradir.g, construction, clearing or other development activity may occur within the required stream setback
without autorization from the City.
See attached document for additional conditions.
PERMIT EXPIRES September 9, 2000, IF NO WORK IS STARTED.
Permit issued on March 13, 2000
I hereby certify that the above information is correct and that the construction on the above described property and
the occupancy and the use will be in accordance with the laws, rules and regulations of the State of Washington and
the City of Federal Wa
Owner oragent: Date: /S G G
1hVE L0 M S DE ARVEM
CfWF _,— COMM• .,;
�0.
uv � SEP 2 7 200
FIRE PROTECTION SYSTEM APPLICATION
Federal Way Business License number: `57t
PARCEL # -3-740
SITE LOCATION
Tenant/Owner
BUILDING DrvmoN
33530 First Way South
Federal Way, WA 98003
(253) 661-4000
Fax (253) 6614129
FPSM-104$7L'F'
Commercial ❑ Residential
Phone
Address/City/State/Zip
2-'15 � FL.-; -Syl El L✓fit � �LW . vV
A .
Nature of Wor>rILFVt
+ i >n
7 �rr (!� �I ✓� �� i ✓ `_m^i ✓i Kt� ��
Project Valuation:
APPLICANT
Name
Person Phone
CO
Company Name
G
Fax
Address/City/St/Zip E Z 1-7 d le iri (V i t'9 i/-\ f-- • C C A (,,C'-- V- ,24J OA -
Contact Person M I L & �Vwky\ Phone 25-3 (-7 Fax
State L & I Contractor Registration # '�/� �I FLA)( 2,-P(7 Exp. Date ��� I
(Card must be presented)
PLEASE SUBMIT THREE (3) SETS OF DRAWINGS AND CUT SHEETS, PER NFPA STANDARDS.
MAXIMUM PLAN SHEET SIZE: 2411 x 3611
DISCLAIMER I certify, under penalty of perjury, that the information fumished by me is true and correct to the best of my knowledge and further that I am authorized by the owner of the above premises to perform the work
for which permit application is made. I further agreeJZt
vharmless the City of Federal Way as to any claim (mchuiing cosh expenses, and attorneys' fees incurred n investigation and defense of such clam), which may be
made by any person, including the uned, antheCity ofFedeny Way but only where such elamm arses out ofthe tetiana ofthe city, including its o15ars and employees, upon the accuratry ofthe
information supplied to the city as a E fthis appn.
Owner/Agent
FPSAPP
RevcsPn 5/19/99
Date 61 -Z-2
DEPARTMENT OF LABOR AND INDUSTRIES
REGISTERED AS PROVIDED BY LAW AS
ONST CONT SPECIALTY
CCBD, WAs= :FSQi20/2/2.099'
EFFECT DA'E
WASHINGTON RE SPRINKLER INC
3217 MERIDIAN
EDGEWOOD WA 98
rs25-052-000 (W) __
" POSWIS CARD ON THE FRONT OF BUILDI* r
i,
14 -OF ,
. BUILIDNG DIVISION
V AY INSPECTION RECORD
INSPECTION REQUEST PHONE #: 253-661-4140
Request must be received by 3:30 PM for next day inspection
PERMIT #: 99 -104905 -00 -SF
OWNER'S NAME: RIVERSTONE HOMES, INC.
SITE ADDRESS: 210 SW 295TH
O FOOTINGS/SETBACKS �/ � � �(✓ O FOUNDATION WALL
'i G'
DO NOT OUR CONCRETE TIL THE ABOVE IS APPROVE
D
ODRAINAGE: Line Connection
DO NOT POUR SL�ABPldd'
TIL E ABOVE IS
UNDERFLOOR FRAMING
O ROUGH PL MBI>NG: DWV
(} ROUGH MECHANICAL
O SHEATHING Q
O SHEAR WALLS
O FLECTRICAL ROUGH -IN
O F1.E/DRAFTSTOPS
ALL
( ) FRAMING/FIRESTOPPING
ater piping 11117 0
1 �' O ®� '�% Gas Wiping (04/'00
loor -4
9 /V -A, %/ )ems /)
Ditch Cover
BOVE MUST BE APPROVED PRIOR TO
01 /. Z- f//11.) '-;�5
MING INSPECTION/+
�1 PC Ski e
mss" ��
' ,L
THE ABOVE MUST BE APPROVED PRIOR TO INSULATING OR SSHHEEETROCKING
O INSULATION: Floors Walls / "/i�KtriC
THE ABOVE MUST BE APPROVED PRIOR TO APPLYING SHEETROCK
O WALLBOARD NAILING Z / O SUSPENDED CEILING
THE ABOVE MUST BE APPROVED PRIOR TO TAPING OR INSTALLING CEILING TILE
( ) ELECTRICAL FINAL
( ) PLANNING FINAL
( ) PUBLIC WORKS FINAL
THE ABOVE M ST BE,
O BUILDING FINAL c G%
TO BUILDING DEPARTMENT FINAL
' " v .,�1 l!�. L.,✓t-yam J
Scc•
DO NOT OCCUPY THIS BUILDING UNTIL BUILDING FINAL IS APPROVED
• •
INSPECTION LOG
100b)
f� r Yid o� v i)k �J
11 �nt k'�� f�1Ls errs c'� • 3 aYG
r rpt f v x runaved a *ep Wed �
csCG . 99- 156 8 .� `x
Lot 2 Site Plan
Lot 1-4, Blk. 33 iverstone &,21 (200
uenna Add. 1 (25 3) 226- 201
ound rebar
d,
Z5I Min
5"40vr
&t4, /
6a6bo
1;_, -
Southwest 295th Street
----------------
Sewer
"'- Manhole 64�
bNj\t W0 4
--- -- ��
8" Water Main
I OPP
Deck ~ —,
11'6"23
neck F�
11.6"
111'6" Proposed 19'6'
I Nouse I
2,465 sf Impervious
f f8
14' I 23 ...
�e.
_0(>.E 12' Porch
C�5
>...... W I
._........ c.> I .. �O _ aa' *4 1
IJr: w 1
J 1,240 sf imp.. -vious /
M
l Proposed I
i Garage X32'
Ln I 850 sf mperv.
I �
1►
Found reba
24 D�
00.
.s
GIs
k
/ L9
s.
50, i
,�—,Uffer
S
LO nz
b
N
CO
U
Stream Buffer
C- y BUII.DING Divist
``vet'ec� l , t F. E1) 33530 ay, Way Soul
p �} I'cdcral Way, WA 9300
�i� FiY�zRL �t1 (253`:661-400
�,,,�►�
DEC 2 91999 ax (253, 161-412
.13
Cl.` Y OF FEDERAL WAY
BU4LDING DEPT
APPLICATION FOR BUILDING PERMIT
'LEASE PRINT APPLICATION #
Lr�w«rilCfFYM'rff''Int`i'<?cir'' _ i'a[ [i<�5 Site address
s
2
Tenant name
Building Owner's Name
riotion of Work
Name (F,M,U Jj ,
Address
City C C),R4/C)✓1 ,
Contact Person 4,1 _
S
12--5 7-4 /V"i6:-
n `/ I°i•
445S
Lot #
Address
Day Phone ,Z `r3 ;�-,/1 71 1'
Company Name Vel-s-�v n D
Address h e-/ �L
City oy
Contact Person
Contractor's # (card must be presented)
Assessor's Tax #� q&ev
State !/i'
Other Phone
Federal Way Business License #
ices -4-7C-,
State Zi
�22f Fax L
h� 2 PI o2..,7 3 of/2- 113 c"Z5-S e1gZ�
I,/Fi Expiration Date Verified ❑ Yes ❑ No
Name ('C C fs /f/ !/V
Address 11(2- ,? C� /4- Q
V
City G#L�i�r
Contact Person
State Lf!/7 Zi i!U2
Phone Fax
zi Z
LEGAL DESCRIPTION % k :� 3 L a 1,-:5' / 41 'efln',, ,add 4 PC,,,- r -kc sus !44!�-
PleaSe romnlete Revers Y, -Q
ST>I�UGT
A
isting Use
VA e -An T
�`'rooposed Use ��%L �
�� 7it c -,0;Z
Dish Washers (
Permit includes:
VW
V"BUildinu
tt-Plumbing 1
U Mechanical
❑ Other
(l/
Type of Work:
&&'Residential
❑ Commercial
❑ New
❑ Addition
❑ Remodel
❑ Repair
❑ # of bedrooms
❑ Garage
❑ Deck
❑ Shed'
Enter 1st Floor 1 -76 7 sq ft
Area Basement "7 t", s ft
2nd Floor (3 4.13
Docks
sq ft � or 1H4 sq ft
s ft Garage 9= s f
Existing Floor Area
Proposed Total Area
_ sq ft
sq ft
Water Availability
Sewer Availability
191�' On -Site Septic System Availability ❑
Project Valuation
I $ .Z / 7Sc�
Zoning
Lot Sizev
ExistingBldgValuation
$
For new residential only - Proposed selling cost: $ l DCS c7
.........................................................................
Name,--. Address
City State 17in
Contractor Name Address
/ ��J /lam �tG�, /" ' / A zip z(L, Z Gad' •id✓cr `�r rJ
Cit >u h State ( o i' eJ � Id
Contact
Phone Fax
2,06 Z1/3 ?7(7e� _
License # F -R% ,0 l 4 Q S3 Q 2 Expiration Date Verified ❑ Yes ❑ No
AS
Verified ❑ Yes ❑ No
Water Closets
`'/
Sinks
Urinals Lawn Sprinklers
Bathtubs
3
Dish Washers (
Drinking Fountains Other
Showers
Electric Water Heaters
Sumps
Lavatories
(l/
Washing Machine
Drains Total FrxtuMa Gn
.:::
NiECFfANICAE.1II111T C..�UtV7 MECHANICAL EVALUATION ONLY $
Fuel T e (gas/electric/other) A Gas Dryer Air Handling < = 10,000 CFM 15-30 Tons
Length of Gas Piping O Range Air Handling > = 10,000 CFM 30-50 Tons
Furn <IOOK BTUs Gas Log Unit Heater 50+ Tons
Furn > 100 BTUs Z0; 000 Fans 17 Miscellaneous Fuel Tanks
Gas Hwt -71 Hood Boilers Above Ground
Conv Burner Duct Work 0-3 Tons Underground
BBQ's Wood Stoves 3-15 TonsTdtal Uhtt CoUni..
ASCLAIMER: I certify under penalty ofperjury that die information furnished by uie is true and correct to the best of my knowledge, and further, that I ant audiorized by lie owner
fie above premises to perfomi the work for which pennit application is made. I fintlier agree to save harmless the City of Federal Way as to any claim (including costs, expeuses, and
ttomeys' fees incurred in investigation and defense of such claim), which may be made by any person, including die undersigned, and filed against die City of Federal Way, but otdy
vherc such claim arises out of die reliance of the ' y, 'nchiding its officers and employees, upon the accuracy of the information supplied to the city as a part ofthis application.
)wner/Agent: �Gj/ Date:
-105110199 7�
Stream Assessment
Of
Unnamed Tributary of Puget Sound
Lot 2, Block 33, Buenna Addition
268XX 2nd Ave. S. W.
Federal Way, Washington
Building Application Number: 99-104905
Parcel No.: 119600-3810 (Lots 1-4)
Prepared for:
Riverstone Homes, Inc.
Dated. January 7, 2000
Prepared by:
Jeffery S. Jones,
Certified Professional Wetland Scientist
ES TTE LEI
JAN 1 01999
Ll
1.0 Introduction
i . Jones and Associates, Inc.
This study is for a stream determination and classification of an unnamed intermittent
stream which flows into Puget Sound, located south of Redondo. This stream survey was
conducted by Jeffery S. Jones, Certified Professional Wetland Scientist.
2.0 Methodology
Habitat units identified, measured and evaluated using the USFS methodology "Stream
Habitat Classification Inventory Procedures for Northern California" (McCann, 1990) and
"Methods for Evaluating Riparian Habitats with Applications to Management" (Platts,
1987). Stream flow was estimated using the formulated Q(cfs)=A(area sf) x Velocity
(fps). Streambanks were surveyed by Centre Pointe, Inc., licensed professional land
surveyors.
3.0 Stream Location and Description
The subject property is Lot 2 of Block33, Buenna Addition, at 268XX 2nd Ave. South,
Federal Way, Washington. The stream reach adjacent to the subject property is a stream
that discharges directly into Puget Sound. The source of this tributary is a concrete pipe,
located 130 feet south of the southeast property corner of Lot 2 and street runoff from the
development above. The drainage feature downstream has been altered by construction
of single family residences and their associated yards. The drainage features ends at
292nd Ave. S.W. and apparently surface water is piped the rest of the way to Puget Sound.
4.0 Riparian Land Use
Riparian land use is a combination of existing downstream residential and early
successional forest. There has been some recent home construction downstream, but
buffers are not apparent. Long sections of pipe must be present near several residences,
that appear to be construction in the middle of the drainage.
5.0 Riparian Vegetation
The riparian plant communities are existing landscaping and red alder (Alnus rubra)
salmonberry (Rubus spectabilis) regrowth with areas of Himalayan blackberry (Rubus
discolor).
6.0 Fish Habitat and Utilization
Culverts, the steep gradient of the channel, shallow intermittent flows, and frequent
eroding head -cuts, make the stream impassable to fish. Water quality is adversely
affected by street runoff from the development above, which lacks storm water controls.
According to existing residents, street runoff pours directly into the head of the channel.
7.0 Stream Classification and Setbacks
City of Federal Way Code, Section 22-1, divides streams into two definitions, Major and
Minor. Major streams are defined as "any stream, and the tributaries to any stream,
which contains or supports, or under normal circumstances contains or supports resident
or migratory fish. Minor stream shall mean any stream that does not meet the definition
of a major stream."
J40Jones and Associates, Inc.
The unnamed stream has no fish use, therefore it is a minor stream. Section 22-1306, of
the Federal Way Code, requires a 50 -foot setback from the ordinary high water mark of a
minor stream.
8.0 References
Federal Way City Code. 1999. Chapter 22 of the Federal Way Zoning Code, Regarding
Environmentally Sensitive Areas.
McCain, M., D. Fuller, L. Decker, and K. Overton. 1990. Stream Habitat Classification
Inventory Procedures for Northern California. USDA Forest Service FHR Currents: R -
5s Fish Habitat Relationships Technical Bulletin No. 1.15 pp.
Platts, W.S., G. Armour, G.D. Booth, M. Bryant, et.al. 1987. Methods for Evaluating
Riparian Habitats with Applications to Management. USDA Forest Service, General
Technical Report INT -221.
Williams, R.W., R.M. Laramie, and J.J. Ames. 1975. A Catalog of Washington Streams
and Salmonid Utilization: Volume I, Puget Sound Region. Washington Department of
Fisheries.
2
ITED STATES
DEPARTIWNT OF THE INTERIOR is
GEOLOGICAL SURVEY
122°22'30" 5480o0mE ;1 540000 F ET ( SOUTH) 550 20' 00" DE
47°22' 30"----
5z4g000mN
�v
J �CJ
5245 Woodmont
POVERTY BAY
5244. 1
i
R
740 000 FEET_
( SOUTH)
5243
`fu,v � ' � Bue
-' j
76
R Q %\- !- % f del ide — — --
z O ch
O u1 d 81010 1'
tie r rk
DisMa� �' L ke-"G 6v0 .ake i ru e
i�
eoo
A_ ar Bch 0 v l 1
fav I �
' �p�•..,._.
MT•n.k
5241-
WRIA, Basin#: % KC Basin:L, Date: 1 'S oo ME:: S /30 F91'30
Stream'#: Stream Order- Z Survey Length: RMO RM
Weather Conditions: 0 d c.. cu
Investigators: 5,4--R o -r
RF
HT
W
D
L
CW
CD
SS/WIDTH/TY
(LB -RB)
SBS PQI
LWD
LE DI ST V CN TY
/- /-5 ZS 2�_---
LP ,Y 77 3 q'6 /'-V
O /
l
Sb l ' r->
7,_3l
D
0
5L
3�:r
IT
(e Ips' t.� L 52 LtS
------
Z%
o
Key: — ------
RF=REFERENCE HT=HABITAT TYPE CW=CHANNEL WIDTH AT OHWM
CD=MEAN CHANNEL DEPTH AT OHWM L=LENGTH OF HT
W=MEAN WIDTH OF HT (>5msrmts) D=MEAN DEPTH OF HT (>5msrmts)
SS=STREAMSIDE STRUCTURE: O=NO RIPARIAN ZONE [IF 0, indicate lawn,
road, buildings, etc.] 1 -MATURE COMPLEX FOREST 2-IMMATURE/EVEN-AGE/DISTRUBED
3 -SHRUB -DOMINATED (<20' HIGH) 4-GRASSLAND/MEADOW/PASTURE 5 -WETLAND
VEGET. (WIDTH)/LB-RB=LEFT BNK-RGT BNK (TY)PE= (C) ONIFEROUS/ (D) EDICUOUS/(M) IXED
SBST=DOMINANT/SUBDOMINANT SUBSTRATE THROUGHOUT HABITAT TYPE: 1=BEDROCK
2=SILT/ORGANIC 3=SAND 4=GRAVEL (<25mm) 5=GRAVEL (25mm-100mm)
6=COBBLE (100mm-256mm) 7=13OULDER PQI=POOL QUALITY INDEX
LWD=LARGE WOODY DEBRIS: (LE)NGTH, MEAN (DI)AMETER (ST)ABILITY: (A) NCHORED
(U) NANCHORED (?) UNKNOWN (V)ARIETY: (C) ONIFEROUS/ (D) EDICUOUS/(?) UNCERTAIN
CN=CONDITION: (S)OLID: (R) ECENT/(0)LD (M)ODERATE: (R) ECENT/(0)LD
(R) OTTED: (R) ECENT/(0)LD (TY) PE (J)AM LOGS: (F)LOATING/(S)TRANDED
(B)RIDGE: (C) OLLAPSED/(P)ARTIAL (L)ATERAL (W)EIR: (P)ARTIAL/(F)ULL
(S)TUMP
24" CMP culvert
24" CMP culvert I
Top edge of stream*: Top edge of stream
Top edge of stream -Top edge of stream
0 20 40
Scale: `
1" = 200'
QN,-,-,rQ- \ I. Top edge of stream
Top edge of stream:
Match line
Match line
Top edge of stream.
!Top edge of stream
•Cyclone fence
.Top edge of stream
Top edge of stream• •g8" concrete culvert
0 20 40
Scale:
1" = 20'
• •
LOWER DUWAMISH RIVER
This drainage section includes the Duwamish River
from its mouth below the Spokane Street Bridge at Elliott
Bay (R.M. 0.00) in Seattle upstream to R.M. 11.0 where the
Black River enters near Tukwila. In addition, it covers all
independent streams entering Puget Sound from the Du-
wamish westerly to Alki Point at West Seattle, then south-
erly through Fauntleroy, Burien, Des Moines, and Redondo
beaches to Dash Point, north of Tacoma.
Stream Description
The Duwamish River Waterway lies in the industrial
southern portion of Seattle. The lower 5.2 miles of the river
are dredged, affording navigation for ships upstream to the
First Avenue South Bridge (R.M. 2.5) at high tide. Barge
traffic extends to the turning basin at the head of navigation
(R.M. 5.2). Water dependent activities utilize lands bor-
dering the lower 8 miles of waterway. The mile -wide valley
floor and hillsides have heavy residential development.
The width of the Duwamish varies from 500 to 1,000
feet in the lower 5.2 miles and from 150 to 200 feet up-
stream to R.M. 11.0. The river in this area is under tidal
influence and contains definite stratified layering of salt and
fresh water below the turning basin. Velocities are dissi-
pated as the stream enters the wider section of river and cur-
rents converge with tidal pressures. Stream banks are sloped
and diked to contain flows up to 11,000 cis. Stream bank
sloughing and erosion present continuous maintenance
problems, and the lower navigational channel must be
dredged every third year. Small areas of sparse natural brush
and deciduous trees line the bank. The bottom is primarily
silt and mud in the navigation channel with compacted
gravel in the upper section.
Fifteen small independent streams enter Puget Sound
within this section. These typical lowland drainages receive
most of their flow from springs, lake outlets, rain and
groundwater runoff. Miller, Bow Lake, and Des Moines
creeks are the largest, each flowing down moderately steep
hillside ravines before passing across gentle plateaus into
Puget Sound. Miller Creek originates in Tub and Burien
lakes. An impassable culvert occurs at R.M. 1.8; an impass-
able falls at anile 2.7. This creek has undergone extensive
alteration and total deterioration from the heavy residential
and commercial growth in the Burien-Riverton Heights dis-
tricts. Bow Lake Creek flows from the outlet of Bow Lake
(R.M. 3.45) and enters salt water at Des Moines. A sewage
treatment plant is located at approximately R.M. 1.0 with a
partial block to fish migration from a cement weir with a 30 -
inch drop, and an impassable cascade occurs at R.M. 1.5.
The bottom composition is generally good in one-half of the
lower mile of stream and provides suitable spawning area.
Des Moines Creek is a short -nun stream originating from
spring and groundwater sources. It flows west 1.9 miles
through a fairly steep ravine to a series of cascades at R.M.
0.75, then crosses a shallow valley and enters Puget Sound
between Des Moines and Zenith. Concentrated residential
development has altered habitat through diversions, chan-
nelization and encroachments. The stream is intermittent in
nature and is generally dry during late summer and early
fall.
Salmon Utilization
The Duwamish River Waterway is a transportation and
rearing area. The lower river estuarial zone is vital to salmon
as a transition area for adaptation of migrants to salinity
changes. Fall Chinook, coho, and chum are the principal
salmon species utilizing this watershed. Cohn and chum
salmon are the only species that ascend Miller, Bow Lake
and Des Moines creeks. Coho utilize Longfellow Creek, and
coho and chum use the two unnamed tributaries in the
southern portion of Poverty Bay near Redondo. Chum
spawn in the lower portions of these short -run streams,
while coho spawn and rear in their accessible lengths.
Limiting Factors
Water quality is the most serious limiting factor for
salmon in the Duwamish waterway. The borderline dis-
solved oxygen level below R.M. 5.2 is very crucial in August
and September, particularly for adult Chinook. The salt-
water wedge, created by dredging the navigation channel,
varies with tidal cycles and contributes to the critical oxygen
condition. Industrial wastes, domestic sewage, leachate from
landfills, and storm runoff have all contributed to the water
quality problems.
Low flows and limited spawning gravel are the major
limiting factors in the small independent streams. Siltation
and water quality are also serious problems.
Beneficial Developments "
The METRO studies and waste disposal systems have
benefitted the area's water quality. The Green River
Hatchery produces excellent artificial runs of both Chinook
and coho. The Howard Hanson Dam provides flood control
for the lower Green River Valley and Duwamish area.
Habitat Needs
A Shorelines Management Plan that considers protec-
tion of aquatic resources and habitat is needed to provide
coordinated long-range development of this area. Rehabili-
tation of the small independent streams would provide ex-
cellent opportunities to local sports groups and community
clubs for environmental improvement.
PHOTO 09-10. Black River flood control dam and fish passage facili-
ties.
Duwamish — 101
LOWER DUWAMISH RIVER
Duwamish River Basin - WRIA 09
Stream
Number
Stream Name
Location
Of Mouth
Length
Drainage
Area
Salmon Use
0001
Duwamish River 1
Sec I 3,T24N,R3E
93.6
-
Chin., Coho, Chum
0003
Unnamed
LB -6.5
2.0
-
Unknown
0004
Black River
RB -1 1.0
2.65
-
Coho
(See Duwamish 203)
Duwamish R. cont.
@ mi. 11.01
-
as Green River
0033
Unnamed
LB -13.2
2.2
-
Unknown
(See Duwamish 203)
0038
Drainage Ditch
LB -17.35
~ 1.5
-
None
(See Duwamish 203)
0045
Unnamed
LB -21.7
4.2
-
Unknown
(See Duwamish 203)
0050
Drainage Ditch
RB -23.05
- 1.15
-
Unknown
(See Duwamish 203)
0051
Hill Creek
LB -23.9
8.35
-
Coho
(See Duwamish 203)
0061
Unnamed
RB -28.6
1.95
-
Unknown
(See Duwamish 203)
0069
Unnamed
RB -30.15
1.0
-
Unknown o
(See Duwamish 203)
(Continued Duwamish 303)
0359
Longfellow Creek
Sec 13,T24N,R3E
1.45
-
(Coho)
0362
Unnamed
Secl2,T23N,R3E
1.9
-
Unknown
Lake Garrett
Outlet -1.4
-
-
Unnamed Lake
Outlet -1.9
-
-
0371
Miller Creek
Sec36,T23N,R3E
4.8
8.21
Coho, (Chum)
Tub Lake
Outlet -4.2
-
-
0377
Bow Lake Creek
Sec8,T22N,R4E
3.45
6.41
Coho, (Chum)
(Des Moines Creek)
Bow Lake
Outlet -3.45
-
-
0380
Unnamed
Secl7,T22N,R4E
1.9 -
-
Coho, (Chum)
0381
Unnamed
Sec20,T22N,R4E
1.4
-
Coho, (Chum)
0385
Unnamed
Sec5,T21 N,R4E
1.1
-
(Coho), (Chum)
0386
Unnamed
Secl,T21N,R3E
1.25
-
Coho, (Chum)
1 The eleven mile lower stretch of the Green River is called the Duwamish River.
Duwamish - 1 U3