HomeMy WebLinkAboutPacket, DRC PLANNER 4/26/2011
CITY OF SPRINGFIELD - .LOPMENT REVIEW COMMITTEE
DISTRIBUTION DATE May 2, 2011
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RECEIVED
'Current Planning Staff: G. Karp, J. Donovan, Liz Miller, M. Metz er, Lissa Davis,
L. Pauly, Tara Jones, Andy Limbird, Dave Reesor Steve Hopkins Molly Markarian
'Matt Stouder, Engineering - Public Works Departmen
Brian Barnett, Traffic EngineerlPE, Public Works Department (agenda only 2102)
'Michael Liebler, Transportation Planning Engineer, Public Works Department
'Gilbert Gordon, Deputy Fire Marshall, Fire & Life Safety Department
Melissa Fechtel, Fire Agenda only
'Ronni Price, Planner, Willamalane Park and Recreation District (Greg Hyde)
'Sanjeev King, Springfield Utility Board (Electric)
"Yan Seiner, Springfield Utility Board (Water)
'Bart McKee, Water Engineering Supervisor - Springfield Utility Board (Water)
Jack Foster, Springfield Utility Board (Energy Conservation)
Amy Chinitz, Springfield Utility Board (Drinking Water)
. Jim Henry, Central Lane Communications 911
Leo Lambert, US Postal Service
'Billy Elder, Northwest Natural Gas (John Radosevich, alternate reviewer)
'Phil Fields, Lane County Transportation (Celia Barry, Steve Smith, Shashi Bajracharya and Lydia McKinney)
Thomas Jeffreys, Emerald People's Utility District (EPUD)
George Ehlers, Lane County Sanitarian [Urban Transition Zone] (if applicable)
Jamie Porter, Rainbow Water District (Dean Hill alternate reviewer) (' only if in the North Spfld area)
Ralph Johnston, Lane Regional Air Pollution Authority (if applicable)
Tom Henerty, Comcast Cable (if applicable)
Mark Oberle, EWEB (electric) (property)
Dick HelgesonlMel Damewood, EWEB (water) ('If in Glenwood)
Jeff Towery - AIC Development Services Director (agenda)
John Tamulonis, Economic & Community Development Manager
. Jackie Murdoch, Assistant Building Official
'Lisa Hopper, Building Services Representative
. Greg Ferschweiler, Keith Miyata, Brian Conlon, PW Dept.
'Craig Fitzgerald, Maintenance PW Dept
George Walker, Environmental Works Dept., (agenda only)
Deanna Buckem, Engineering Assistant, Public Works Dept.
Police Chief, Jerry Smith, Police Department (agenda)
<Will Mueller, LTD
Norm Palmer, Quest Corporation (agenda
'Scott Nelson, Planning & Development Manager, ODOT, State Highway Division
Jeff DeFranco, Springfield School District .(agenda)
William Lewis III, Financial Services, Springfield School District ( agenda)
Joe Leahy, City Attorney
Chris Moorhead, City Surveyor
APR.26 2011
By: :DR-Co p~
I of 1.9 p~
(agenda)
(agenda)
A request for land use action, as described on the attached agenda, has been received by the Development Services
Office. Specific concerns of your divisionldepartmenUagency should be addressed. If you have comments or
requirements of this proposal, please send them in writing to the assigned planner @
Development Services Department, 225 Fifth Street, Springfield, OR 97477. Your
comments may also be sent via e-mail or if you are a ORe internal user attach as
document within the Accela Automation.
If your written comments are not received by Friday, May 13, 2011 specific concerns of your
division/departmenUagency will not be addressed unless you attend the meeting on May 17, 2011. The Development
Review Committee holds staff review meetings on Tuesday@8:00-10:00a.m. You should also plan to attend the staff
meeting on Tuesday if you have specific concerns so that the Planning representative can discuss them prior to meeting
with the applicant. If the Planner feels it is necessary for you to participate in the public meetings he/she will let you
know on Tuesday.
. full packet
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AGENDA
DEVELOPMENT REVIEW
COMMITTEE
DEVELOPMENT SERVICES DEPARTMENT
225 FIFTH STREET
Conference Room 615
Staff Review: May 17, 2011 @ 8:00 - 9:00 a.m.
1. SITE PLAN REVIEW #TYP211-00007 (PRJ11-00007) HIATT 8:00 - 9:00 a.m.
Assessor's Map: 17-03-26-13 TL 102
Address: Vacant _10th & Q Streets
Existing Use: Vacant
Applicant submitted plans to construct (4) duplexes, 8 dwelling units on vacant lot. (Hiatt Estates)
Planner: Steve Hopkins
The DRe informational packet for this meeting is available on-line for you to review or
print out @ www.sprinQfield-oLQov/weblink7
1
;City of Springfield
Development Services Department
225 Fifth Street
Springfield, OR 97477
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.
Site Plan Review
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A licant Name: Michael Hiatt
Com an :
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Phone: 514-915-3569
Fax: 541-342-8251
on 97405
Phone: 541-746-0637
Fax: 541-746-0389
on 97477
Phone: 541-726-1382
Fax:
Address:
3283 Ja hawk Court, Eu
A Iicant's Re .. Lane Branch
Com an :
, Inc.
Address:
310 5th Street
Owner: Bernard Hiatt
Com an
Address:
TAX LOT NO S : 102
ASSESSOR'S MAP NO: 17-03-26-13
Located at the northwest corner of the intersection at 10th Street and Street.
0.58
Acres rgJ S uare Feet 0
Pro osed Name of Pro"ect: Hiatt Estates
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Description of If you are filling in this form by hand, please attach your proposal description to this application.
Pro osal: 4 Du lexes totalin to 8 Dwellin Units
Associated A lications:'
yc:z",}Jv{.{,..
Pre-Sub Case No.: P eH-OOOO 8'
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Date: 3-/1- (
Reviewed b
Date:
Reviewed b
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TOTAL FEES: $ 4
.'21.
2- 2.1.11- Posta e Fee: $ 1(.,
PROJECT NUMBER: P 1\- oroo7
A Iication Fee: $
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Revised 11/19/09
Original Submittal
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spr_map' . . Page 1 of 1
TYP211-00007 Sit~lan Tentative 17-03-26~ TL 102 Hiatt Vac-10th
& Q Sts
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Date Received:
APR 2 2 2011
Original Submitlai
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WRITTEN NARRATIVE
FOR
HIATT ESTATES DEVELOPMENT
17-03-26-13 TL 102
This Site Plan Review Submittal application is a proposal to develop the vacant lot at the
northwest corner of loth Street and Q Street (Map 17-03-26-13, Tax Lot 102) into multi-family
dwellings. Currently, the lot is vacant with no existing structures on site. The total site area is
0.58 acres and is generally flat with vegetated ground cover consisting predominately of grass.
There is a 60" filbert cluster in the southwest corner of the lot.
According to the Soil Survev of Lane Countv, by the Natural Resource Conservation Service, the
soils on site consist of Salem (I 19) and Coburg (32). Salem soil is moderately well draining
(Hydrologic Group: B) with a depth to high water table greater than 6 feet. Coburg Soil has
moderately slow permeability with a hazard of water erosion that is slight.
The new development proposes the construction of 4 new duplexes or 8 dwellings along a
private concrete access drive aisle. Each dwelling will have its own garage and driveway. All
units will have individual utility services and meters. A 6" sanitary pipe is to be constructed
along the private drive to be used as a service lateral for this development.
S tormwater management will be met by installing pervious concrete pavers on half of the non-
building rooftop impervious surfaces. The remaining non-building rooftop storm water runoff
will be collected by a 2 chamber steel catch basin with an oil and grease filter. This catch basin
will connect with the roof downspout lateral running through the project and convey to the 21" .
storm water main on I Oth Street.
Solar access will be met by having 10' setbacks from the north lot line for the northern two units.
Per Table 3.2-1 from the Springfield Development Code, with a North-South dimension of 65', a
Shade Point height maximum of20', the solar setback minimum is 8'. A North-South depth of
65' was taken from the center of the access driveway to the north property line because this
dimension functions as a property line. Using a setback of 10' allows a conservative design
regarding Solar Access Requirements.
All additional Site Plan Review Submittal items are included with this packet. .
Date Received:
APR 2 2 '2011
Original Submittal
.
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STORMWATER MANAGEMENT
PLAN AND DRAINAGE STUDY
FOR
Hiatt Estates
10th Street and Q Street
Springfield, OR
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March 11, 2011
Prepared For:
Michael. Hiatt
3283 Jayhawk Court
Eugene, Oregon 97405
Branch Engineering, Inc.
310 5'h Street
Springfield, OR 97477
Phone (541) 746-0637
Fax (541) 746-0389
Inc.
Branch Project # 11-017 .
Date Received:
APR 2 2 2011
Original Submittal
.
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Storm Drainage Evaluation
lO'h Street ohd Q Street --H jatt
STORN1 DRAINAGE EVALUATION
Hiatt Estates
Springfield, OREGON
This evaluation was prepared to summarize the drainage system proposed for the Hiatt
Estates development. The site is located at the northwest comer of the intersection at lOth
Street and Q Street in Springfield, Oregon. Half of the stormwater will be treated on site'
by using pervious pavement. The other half of the stormwater will be graded to a catch
basin and be filtered before entering the city's stormwater conveyance system.
Existing Conditions
The site currently has no existing structures. The total site area is 0.58 acres and is
generally flat with vegetated ground cover consisting predominately of grass. For
additional information on the utilities and services just off site, see the Existing
Conditions Plan.
According to the Soil Survey of Lane County, by the Natural Resource Conservation
Service, the soils on site consist of Salem (119) and Coburg (32). Salem soil is
moderately well draining (Hydrologic Group: B) with a depth to high water table greater
than 6 feet. Coburg Soil has moderately slow permeability where the hazard of water
erosion is slight.
Proposed Drainage System
The proposed development will have 0.33 acres of impervious area and 0.06 acres of
pervious concrete. The runoff from the roofs will connect with the stormwater lateral
along the private drive and pipe to the 21" main along 1 Oth Street. Runoff from the
driveways and the outside 2.5' of the private access street will be treated and infiltrated
by using pervious pavers. All remaining storm water runoff from the street will be
collected by a catch basin that will have removable oil and grease filter. This catch basin
will connect into the storm water lateral along the private drive.
Table 1 below shows all impervious and pervious pavement areas and how they will be
treated and conveyed.
Table 1: Pro Dosed Stormwater Svstem
Impervious Surface Area Treated (yes/no) Infiltrated/Connect to City
,." '.' Connectto:Ctb; . .
' Ro'of,'Area 10464 No
Private Drive (Impervious) 2570 Yes Infiltrate/Connect to City
I".. . ... 990 Yes Infiltrate
Private Drive (Pervious)
Driveways (Pervious) 1880 Yes Infiltrate
I Concrete Walks 744 Yes Infiltrate
Concrete Patios 640 No -
TOTAL 17288 IPate KeCelVea:
APR 2 2 2011
Origir/lar'SbfmW!fflri"g, I"c. - Page I
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Storm Drainage Evaluation
10th Street ond Q Street ~-Hiatt
Stormwater Quality
Per City of Springfield Stormwater Design Standards section "3.03.6 Vegetative
Treatment Requirements", a "minimum of 50% of the non-building rooftop impervious
area on a site shall be treated for stormwater quality improvement using vegetative
methods." For this reason stormwater quality will be met by using pervious pavement for
half of the drivable surfaces and a 2-chamger steel catch basin with a removable oil and
grease filter for the other half.
Pervious pavers are an approved treatment option and will be used on all driveways and
the outside 2.5' of the Private Access Road. Pervious pavers provide treatment in the
removal of pollutants such as hydrocarbons, sediment, and metals and allow for the quick
removal of stormwllter through void openings. Pervious pavement also helps promote
groundwater recharge. Attached is the Design Model of the Pervious Pavers to be used.
In order to detain additional runoff from the site, there will be a 5'x20' pervious
pavement island around the 2-chamber steel catch. This will provide detention for some
of the runoffbefore entering the 2-chamber steel catch basin which will provide pre-
treatment for the remaining pavement areas as required by City of Springfield
Stormwater Design Standards section "3.03.5 Parking LotslPaved Areas." The use of the
2-chamber Steel catch basin with an oil and grease filter for pretreatment is a common
practice for the City of Springfield.
Stormwater Runoff Analysis
For a conservative analysis of the stormwater runoff from the site, we will assume no
detention from the pervious pavement island in the Private Access Drive. Therefore the
total impervious area will be 0.30 acres which includes the impervious roadway and the
roofs from the site. The following Rational Method calculations show the approximate
maximum runoff flow for the 25 year, 24-hour storm event. In order to use the Rational
method an assumed method was used for finding an hourly flow.
Date Received:
APR 2 2 2011
Original Submittal
Branch Engineering, Ine. - Page 2
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Storm Drainage Evaluation
10th Street and Q Street --Hiatt
From Standard Type IA Hydrograph
25-Year, 24-Hr Storm
4.8 in
*per: City of Springfield Standards 4.03.3 Water Quality Design Storm
(ED5P April, 2006)
In a Type IA storm event, the max Percent Rainfall in a 10 minute interval is 5.4% near the end of
the 7th Hour.
(0.054*4.8) =
0.2592 il1/lO min in/lO min
1.56 in/hr
RATIONAL METHOD.
Intensity= 1.56 in/hr
Runoff Coefficients, C
Pavement & Roofs
Lawns
0.9
0.17
Areas . A (acres)
Pavement 0.3
Lawns 0
Total 0.3
Composite C =
SUM{Cindividual areas)xlAindividual areas)
Atotal Area
Composite C =
0.9
Q( cfs)=C( -) *i(in/hr) * A(acres)
Comp C=
Intensity=
Area=
Q=
0.9
1.56 in/hr
0.3 Acres
0.4212 cfs
From this analysis, the maximum runoff flow from the site for the 25-year, 24 hour storm
event is 0.42 cfs entering the 21" storm main on 10th Street.
Date Received:
APR 2 2 2011
Original Submittal
Branch Engineering, Ine. - Page 3
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Site Information
Laver Information
Paving Layer
Base Material
Subbase Material
Subgrade Material
Structural Desio" Information
Hvdroloaical Desio" Information
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Permeable Interlocking Concrete Pavements
Structural and Hydrological Design Inputs
Design'Title: Unknown
Pavement Length
Pavement Width
Pavement Area
Catchment Area
179 It
15.5 It
2,775 It'
3518.5ft'(Avg CN=73.41)
Structural Coefficient
Structural Number
Thickness
ASTM No 57 Stone
Structural Coefficient
Structural Number
Thickness
Porosity
Void Ratio
Permeability
ASTM No 2 Stone
Structural Coefficient
Structural Number
Thickness
Porosity
Void Ratio
Permeability
.3
1.5 in
5.125 in
0.05
0.2 in
4.0 in
0.288
0.4
782.442 in/hr
0.05
0.6 in
120 in
0.318
0.47
31,050.889 in/hr
Subgrade Strength
Porosity
Void Ratio
Permeability
21000.0 psi
0.342
0.52
0.023 in/hr
Average Annual Dairy Traffic
Design ESALs
Design Structural Number
Pavement Structural Number
Structurally Adequate
30,000
1.14
2.3
Yes
Rainfall Location
Storm Type
Springfield, OR
IA
Storm Return PeriOd 24-hour Rainfall Satisfies Infiltration Satisfies Storage Satisfies Storage
(Years) Intensity in Capacity Goal Capacity
2 3.3 Yes Yes Yes
25 4.8 Yes. Yes Yes
Storage goal represents 85 percent of maximum water storage capacity
Date Received: .
APR 2 2 2011
Original Submittal
Page 1/1
2/28/2011 12:40: 11 PM
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Design Title: Unknown
Hvdroloaical Desio" Results
Equivalent Design Storm
Storage Goal 25 year storm
Storage Capacity 25 year storm
Combined Site Hvdrolooical Characteristics for Permeable and Non-Permeable Areas
Site Area 3518.5 ft'
Average Curve Number 73.41
Average Rational C Value
Eo~veJent Design St';;lf!T, ..'.-rt!' Run::'!
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Date Received:
APR 2 2 2011
Original Submittal
Page 1/3
2/28/2011 12:40:11 PM
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Date Received:
APR 2 2 2011
Original Submittal
Page 3/3
2/28/2011 12:40:11 PM
'0212512011 15: 28 FAX 541 . 1021
CITY OF SPRINGFIE~W
I4J 001
PUBLIC WORKS DEPARTMENT
ADMINISTRA TlON
ENGINEERING DIVISION
ENVIRONMENTAL SERVICES DIVISION
MAINTENANCE DIVISION
TRANSPORTATION DIVISION
TECHNICAL SERVICES DIVISION
225 FIFTH STREE7
SPRINGFIELD, OR 97477
WW1JV.ci. springfield. Of. uSlcfept....pw. htrr,
www.cl.springfield_ or. U~
STORMW ATER MANAGEMENT SYSTEM SCOPE OF WORK
________.___________________. (Area below this Ii/,efllled out by Applicant) ----------------------~----_
, (Please return 10 Malt Stouder @ City of Springfield Public Works Engineering; Fax #' i36-IOn, Phone # 736-1035)
Project Name: Ii :..tf 6s~~c'"
Consultant; J),'onLh E:-') ;f1n,-;,,,]
Land Uses: ,a.e"n',,)cn h", i
Project Size (Acres):
Approx, Impervious Area:
/,,'i<ct D~,ripri,.,
Drainage Proposal (public cOlli1ections, pipe sizes and layout, etc.):
Date:
Phone #:
Fax#;
Email:
Approx. Pervious Area:
;}.-;z5-,?,oll
51"1- 7f(.-063 7
Proposed Stormwater Best Management Practices (EMP's):
------------------- (Area belvw this line filled out by the City and ReturnerJ to tf,e Applicant) -------------_,__
(At a minimum, all boxes checked by the City on the jrQnt and buck of this sheet shall be submiltedfar an application to be complele
for'submitTal. although other requirements may be necessary.) .
Drainage Study Tvpe (EDSP Section 4.03.2); (Note. UH lllay be substituted for Rational Method)
I)'i. Small Site Study - (use Rational Method for calculations)
o Mid-Level Development Study - (use Unit Hydrograph Method for calculations)
o Full Drainage Development Study - (use Unit Hydrogrnph Method for calculations)
Environmental Considerations:
IT Wellhead Protection Zone: lu -2.u yV' 0 Hillside Development: VI A-
o Setback Requirements (Wetland, Riparian): f'1 J ;+ 0 FloodwaylFloodplain: )U / A
Downstream Analvsis: -tJo ('I(1,,1~5'-~ f'c'I/;,roJ rF P(,~;"v5 <;.otIM'j5 v-/;);L"d
",e Drev::"",~I/v ci!S(Jv55Cd tp V'cduce n...Yl(J{fD~teR~ce{\fe-a~.&
o N/A I
o Flow line for starting water sud'ace eievation:
o Design HGL to use for starting water surface elevation:
U Manhole/Junction to take analysis to:
APR 2 2 2811
0, iyi"al Ol:ltlMittal
AoMINISTRA TlON I TECHNICAL SERVICES I ENGINEERING: (541)726-3753 . FAX (541)736-1021
MAINTENANCE' (541)725-3761 . FAX (541)726-3621 TRANSPORTATION (541)726-3753 . FAX (541)726-3781
'02/25i2011 15:28 FAX 541 4Ia 1021
CITY OF SPRINGFIE~W
@002
COMFLETE STUDY ITEMS
* Based upon the information provided by the applicant on the front of this sheet, the following list represents a minimum of what is
neededfor an application to be completefor submittal with respect to drainage; however, this list should not be used in lieu of the
Springfield Dl?Velopmenr Code (SDC) or the City's Engineering Design Standards and Procedures (EDSP). Note that compliance
with these requirements does not constitute site approval. Additional information may be required which 'Is slfe specific.
General Study Requirements (EDSP Section 4.03)
Req'd NIA
o 0 -rhe drainage study shall be prepared by a Professional Civil Engineer licensed in the state of Oregon.
~ 0 A complete drainage study shall be submitted if the development is to be larger than one acre, create more than 5000 square
feet of new impervious surface, generate peak flows in excess of 0.5 cfs, or modify an existing system with 0.5 cfs or
greater.
OS 0 Calculations showing sys!em capacity for a 2-year stonn event and overflow effects of a 25-year storm cvcut.
"
Interim Design Slandards/Water Quality (EDSP Chapter 3)
, ,0
~
g]
~
o
EJ
o
o
Submit supporting calculations for the method of stormwater treatment to be implemented.
All non-building rooftop impervious surfaces shall be pre-treated for stormwater quality_ Howcver, a minimum of 50% of
the ooo-building rooftop impervious surface shall be treated by vegetated methods_ ,
Where a stormwater treatmmt or infiltration swale will be used, specify which typo and submit calculations for siZing,
velocity, and flow. Also show bottom and side slopes, distance from structures and lot lines, as well as specifYing the seed
mixture to be used.
For swales serving an area ofless than 15,000 square feet, a simplified design approach may be followed as specified by the
Bwean of Environmental Services (BES). Calculations, sizing and the area the swale serves ,shall be included. .
Swales which serve areas greater than IS,OOOsquare feet shall submit calculations aDd sizing requirements in accordance
with Chapter 3 of/he City ofPortlnnd Stormwater Manual (BES).
All building rooftop mounted equipment, or otl:ter fluid containing equipment located outside of the building, shall
be provided with secondary containment or weather resistant enclosure.
o
o
2'\1
o
Review of Dowostream System (EDSP Section 4_03.4.C)
o 1!9 A downstream drainage ~alysis sball be submitted for developments proposnlg to construct more than 5000 square feet of
new imperviousness slIIface. On-site drainage shall be governed by the Oregon Plumbing Specialty Code (OPSe).
o !1;l The applicant shall include eleVlltions of tile HGL and flowlines for both city and ptivate systems where applicable.
Design of Storm Systems (EDSP Section 4.04)
I'J 0 Ensure flow lines, slopes, rim elevations, pipe type and sizes are clearly indicated on the plan set.
IKI 0 Minimum pipe cover shall be 18 inches for reinforced pipe and 36 ,i/lches for plain concrete and plastic pipe materials, or '
proper engineering calculations ,ball be provided when less. The cover shall be sufficient to support an 80,000 lb load
without failure oflbe pipe structure.
~ 0 MaJlDing's "n" values for pipes shall be consistent with Table 4-1 of the EDSP. All storm pipes shall be designed to achieve
a minimum velocity of three feet per second at 0.5 part full based on Table 4~ I as well.
~ ,; t,~";"
II. '." .
. OtherlM.sc
- rJ 0 If a detention facility is required, it shall be designed to capture nmoff so the discbarge from the sjte ailer development does
not exceed pre-development conditions or available capacity, based on a 2- through 25-year, 24 hour stOIlD. (EDSP Seetion
4.10.1) - :.pav'..... p"",,,,,-t Chn he. u:>i"?J ;r, )"e<' of de+mtJon,
)'S 0 ff a ctrywell (UIC) is proposed, it shan not receive runoff from aoy surface wlo being treated by one or more BMPs, with the
exception of residential building roofs (EDSP Section 3.03.4 A). Additiona! provisions apply to tltis as required by the
DEQ. Refer to the website: www.deQ.state.oLus/wq/groundwaluichomo.hcm for more information,
lEi 0., Ule's may not be located within any easement, and must be no closer than 10 feet from ~elglil~~ or property,
line (EDSP Section 3_03.4.8).
APR 2 2 2011
*' This form shall be In,cluded as an aflachmenr, inside rhe front cover, of (he srormwaler study
Oriainal Submittal
.
.
Map Unit Description: Salem-Urban land complex-Lane County Area, Oregon
Hiatt Estates
Lane County Area, Oregon
119-Salem-Urban land complex
Map Unit Setting
Elevation: 300 to 800 feet
Mean annual precipitation: 40 to 60 inches
Mean annual air temperature: 52 to 54 degrees F
Frost-free period: 165 to 210 days
Map Unit Composition
Urban land: 45 percent
Salem and similar soils: 45 percent
Description of Salem
Setting
Landform: Stream terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Gravelly mixed alluvium
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inChes
Drainage class: Well drained
, Capacity of the most limiting layer to transmit water
(Ksat): Moderately high to high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 4.8 inches)
Interpretive groups
Land capability classification (irrigated): 2s
Land capab#ity (non irrigated): 25
Typical profile
o to 7 inches: 'Gravelly silt loam
7 to 26 inches: Gravelly clay loam
26 to 60 inches: Very gravelly sand
Description of Urban land
Interpretive groups
Land capability (nonirrigated): 8
Date Received:
Data Source Information
APR 22'2011
Soil Survey Area:
Survey Area Data:
Lane County Area, Oregon
Version 8, Feb 9, 2010
Original Submittal
USDA
",-=
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/23/2011
Page 1 of 1
. .
.
.
Map Unit Description: Coburg-Urban land .complex-Lane County Area, Oregon
Hiatt Estates
Lane County Area, Oregon
32-Coburg-Urban land complex
Map Unit Setting
Elevation: 100 to 1,300 feet
Mean annual precipitation: 30 to 60 inches
Mean annual air temperature: 50 to 55 degrees F
Frost-free period: 160 to 235 days
Map Unit Composition
.Coburg and similar soils: 55 percent
Urban land: 30 percent
Minor components: 4 percent
Description of Coburg
Setting
Landform: Stream terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Loamy alluvium over clayey alluvium
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Moderately well drained
Capacity of the most limiting layer to transmit water
(Ksat): Moderately high (0.20 to 0.57 inlhr)
Depth to water table: About 18 to 30 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: High (about 11.0 inches)
Interpretive groups
Land capability classification (irrigated): 2w
Land capability (nonirrigated): 2w
Typical profile
o to 18 inches: Silty clay loam
18 to 53 inches: Silty clay
53 to 65 inches: Fine sandy loam
Description of Urban Land
Interpretive groups
Land capability (nonirrigated): 8
Date Received:
Minor Components
Conser
Percent of map unit: 4 percent
APR 2 2 2011
Original Submittal
/
USDA
=
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/2312011
Page 1 of 2