DCI implemented two levels of structural condition assessments for the SDC project. Level 1 was a screening process intended to provide general information to the team on a wide variety of structures over the entire campus. Level 2 was a detailed assessment process for a smaller group of structures requiring additional evaluation.

Phase 1, Level 1 - Rapid Assessment Screening MethodologyDCI Engineers utilized Federal Emergency Management Agency P-154 "Rapid Visual Screening of Buildings for Potential Seismic Hazards" (FEMA P-154) forms to evaluate basic life safety considerations on approximately 170 existing SDC structures. The intent of FEMA P-154 is to document overall building information, identify the primary structural system and construction material, recognize known building deficiencies and irregularities, and determine a numerical score for anticipated seismic resiliency. The estimated duration of visual inspection and completion of screening form is five to ten minutes per structure. The full team building condition report incorporates DCI’s visual screening results and physical condition observations with information from other design disciplines to provide a comprehensive summary of the existing building stock on the SDC campus. In some instances, modifications to the Rapid Assessment screening results were necessary based on additional information gathered during the Level 2 detailed assessment process.

Phase 1, Level 2 - Detailed Assessment MethodologyThe overall project team developed a "shortlist" of structures that required additional evaluation. DCI Engineers utilized American Society of Civil Engineers 41-13 "Seismic Evaluation and Retrofit of Existing Structures" (ASCE 41-13) Tier 1 checklists and analysis for each structure identified on the "shortlist". The intent of an ASCE 41-13 Tier 1 assessment is to provide a nationwide baseline for existing building seismic evaluation. This type of assessment requires reviewing existing construction documents, observing physical conditions throughout the structure, comparing building data with known structural deficiencies, and incorporating target performance level objectives. The approximate duration of a Tier 1 assessment on the SDC project was 8-16 hours per structure.

Phase 1 Assessment Reports for Shortlisted StructuresIndividual assessment reports summarize implemented ASCE 41-13 methodology, information reviewed, and conclusions for each building identified on the "shortlist". The intent of these reports is to document the building data obtained and the assessment process followed to provide justification for recommended levels of strengthening recommended for each shortlisted structure. After reviewing all of the individual assessment, three strengthening recommendation categories were developed:

Minimal Strengthening = Recommended strengthening is comparatively less than requirements for a building with a similar structural system built in the same geographic area during the same era. In some cases, no strengthening is required to maintain current occupancy.

Standard Strengthening = Recommended strengthening is typical for a building with a similar structural system built in the same geographic area during the same era.

Major Strengthening = Recommended strengthening is comparatively greater than requirements for a building with a similar structural system built in the same geographic area during the same era. In some cases, the structure may not be economically feasible to restore and occupy.

Date: 2/28/2018

Building Name

ASCE 41

Building

Type1

Square

Footage

(ft2)

Needs

Immediate

Action

Reusablity

Rank2

Potential

Improved

Rank3

Comments

Acacia Court 1 W1a 5,924 --- 3 2

Acacia Court 2 W1a 6,600 Yes 4 ---

Poor Condition -

Immediate roof and

heating system repair

Acacia Court Garages W2 1,881 --- 2 ---

Ranked 2 instead of 3

based on access to

structural sysetm

Activity Center (Blue

Rose Café) URM 6,600 Yes 3 ---

Good condition -

Immediate action for

roof repacement

recommended

Stoneman, Poppe,

Cromwell, Lux, Judah,

Bemis, Corcoran,

Malone, Cohen, Smith,

Brent, Roadruck, and

Bentley

C2a, W1a,

& RM1 19,624 --- 1 ---

Not all buidlings were

observed. Rating

based on a

representative

sample.

Butler (Redwoods,

Sequoia, ,James, and

Cedars) C2 39,652 --- 2 ---

Very low reuse cost

considering building

square footage.

Carpenter Shop 1,540

Carpenter Storage W2 --- 5 ---

Chamberlain C2 and C2a --- 3 ---

Finnerty C2a Yes 3 ---

Good condition -

Immediate to repair

the room with

significant water

damage and mold.

Fire House W2 --- 2 1

Frederickson Receiving C2 --- 3 2

Glass & Sign Shop W2 & C2 --- 4 ---Goddard & Goddard

Workshop C2 & C2a --- 3 2

Hatch C2a --- 4 3

King C2a --- 3 2

Laundry/Property S3 & C2 --- 2 ---

Main Kitchen - Eldridge

Store in Dining Room ---

Main Store Room URM & PC1 ---

PC1 = 2

URM = 3 ---

Maintenance Shop URM --- 4 ---

McDougall C2a --- 2 ---

Nelson Treatment

Center C2 --- 3 2

Relatively low reuse

cost considering

building square

footage.

Oak Lodge C2a --- 3 2

Oak Valley School C2 and C2a ---

C2 = 2

C2a = 3

C2 = 1

C2a = 2Ordahl/Johnson and

Regamey/Emparan C2 --- 4 ---

Hill and Osborne C2a --- 3 2

Paint Shop URM --- 4 ---

Palm Court C2a --- 3 2

Parmelee & Powers PC1a --- 1 ---

Paxton C2a --- 3 2

Pines W1a Yes 4 ---

Immediate attention

to stop water

infiltration and mold.

Plumbers/Motorpool

Storage

URMa &

W2 --- 3 ---Porter

Administration/Post

Office ---

Professional Education

Center (P.E.C.) URM Yes 5 ---

Immediate attention

to stop water

infiltration and mold.

Stablize collapsing

areas of structure.

Provide pedestrian

barrier around

structure.

All Single Family

Residences and

Related Garages

W1 and

W2a N/A --- 3 ---

Immediate attend:

#141 to repair fire

damage. #146 to stop

water infiltration and

mold.

Residence 140

"Sonoma House" and

Anncilary Structures W1 N/A Yes 3 ---

Immediate attention

to Servants Quarters

if those are intended

for reuse. Storage Barn #1 &#2

(Dairy Area Building

No. 11 & 12) W2 --- 2 ---Thompson/Bane -

Units 366 & 378 NF

Suspense ---

Transportation Garage W2 Yes 3 ---

Recommend

temporation X-

bracing on lower level

to mitigate soft story

danger.Upholstery & Machine

Shop C2 --- 2 1Wagner, Wright, &

Dunbar Unkown --- 4 ---

Walnut W1a Yes 5 ---

Immediate attension

to stop water

infilration and mold.

Stabilize collapsing

areas of structure.

Notes:

URM: Unreinforced Masonry Bearing Walls with Flexible Diaphragms

1) ASCE 41-13 Structure System Building Types:

W1: Single Family Wood Light Frame

W1a: Multi-Story, Multi Unit Wood Light Frame

W2: Wood Frame, Commercial and Industrial

S3: Steel Light Frame (Pre-engineers Steel Building)

C2: Concrete Shear Walls with Stiff Diaphragm

C2a: Concrete Shear Walls with Flexible Diaphragm

PC1: Precast or Tilt-up Concrete Shear Walls with Flexible Diaphragms

PC1a: Precast or Tilt-up Concrete Shear Walls with Stiff Diaphragms

RM1: Reinforced Masonry Bearing Walls with Flexible Diaphragms

RM1a: Reinforced Masonry Bearing Walls with Stiff Diaphragms

URMa: Unreinforced Masonry Bearing Walls with Stiff Diaphragms

1

2

3

4

5 Very difficult to reuse. Consider Demolition.

3) High potential of improving the building reusability rank with additional investigation, material testing,

and/or a detalied structural analysis.

2) Rank System Definitions:

No or negligable strengthening required

Minimal strengthening required based on building age and type.

Standard strengthening required based on building age and type.

Major strengthening required based on building age and type.

AC ACIACOURT 1

TRANSPORTATIONGARAGES

FIRE HOUSE

MAINTENANCE SH OP

PLANT OPS WAREHOUSE& O FFICE

MAINSTORERO OMPAINT

SH OP

RESIDENCE 140

MCD OUGALL

SLATER

HATC H

WALNUT

HILLOSBORNE

OAK VALLEYSC HOO L & GY M

PINES

PALMCOURT

FRED ERIC KSONREC EIVING

TALLMAN

CHAMBERLAINPORTERAD MINISTRATIO N/PO ST

OFF IC E

MARTHA JENSENAC UTE CARE

MAIN BU ILD ING -P .E.C.

LAUNDRY/PROPERTY

MAINKITCH EN/ ELD RIDG E

STORE

DUNBAR

WAGNERGOD DARD

PAXTON

UPHOLSTERY &MACHINE SHO P

WRIGH T

FINNERTY& STORAGE

KING

BUTLER

THO MPSON/BANE

CROMW ELL

POPPE

STONEMAN

HARK RAD ER/ BUSH

LUX

NELSONTREATMENT

CENTER

REGAM EY -EM PARAN

RICHARD SO N

ORDAHL-JOHNSON

POW ERS

PARMELEE

LATHROP

BEMIS

CORC ORAN

JUD AH

COH EN MALO NE

LANG LEY PORTERRESEARCH TRAILERS

FARRELL

VAN H ORN

TURNER

GAIL SIF FORDWORKSITE

SNED EGER

BENTLEYRO AD RUC K

SM ITH

BRENT

BUTLER POOL

AC ORN SC HOO L

CARPENTERSH OP

OAKLO DGE

RESIDENCE 137& G ARAG E

RESIDENCE 136 & GARAGE

RESIDENCE 135& G ARAG E

RESIDENCE 149 & GARAGE

RESIDENCE 145& G ARAG E

RESIDENCE 146& G ARAG E

CAROUSEL

CORPORATIONYARD BLDG 2

AC ACIA COURTGARAGES

BUTLER BATHHOUSE

RESIDENCE 138

RESIDENCE 139& G ARAG E

MAINSUBSTATION

MAINSUBSTATIO N

BASEBALLFIELD

SH ED

EQ UIPM ENTSH ED

STORAGE

SM ALL GREENH OUSEOFF IC E

EQ UIPM ENT SH ELTER

HORSE BARN

HORSE SHELTER

SUNRISE IND USTRIES #2

CALF BARN

HORSE LEAN-TO

SUNRISE BLD G 6-POLE BARN

EQ UIPM ENT SHELTER

SUNRISE BLDG 1

SUNRISE-CALF BARN

STORAGEBARN #1

STORAGEBARN #2

HAZMAT STORAGE

CORRUG ATED SHED

RESIDENCE 150

RESIDENCE 142

GARAGE

RESIDENCE 141

GARAGE

GARAGE

RESIDENCE 133

GARAGE

RESIDENCE 152

SH ED #1POULTRY HOUSE

SH ED #2

RESIDENCE 134

BALANCE TANK SBALANCE TANKS

DIKE

DAM CONTROL/VALVE TO WER

SP ILLWAY

SO NOMA CREEKWATER PUM P STATION

ONE-MILLIO NGALLO N TANK

CLARIFICATION TANK

WATER TREATMENTBUILD ING

BAC KWASHTANK

#2 DOM EST ICWATER STORAGE

(W EST REC YC LING TANK )

NEW BREAK ERTANK PUMP HO USE

WORKSHO P

FARRO WING PENS

SH ELTER SHED & P IG GERY AV IARY

SO W SH ELTER

POLE SUN SHADE

JOHN MESASO CC ER FIELD

BO ILER/CHILLERPLANT/POW ERHOUSE

GARAGE

HARNEY BRIDG E

RED WOOD BRID GESO NOMABRIDGE

CEMETERY

FORMERFILM-STO RAG E

VAULT

SH AC K

RESIDENCE 126GARAGE

SHED

FRONTENTRANCE

GATE

AC ACIACOURT 2

ELEC TRIC AL SHED

TRANSPORTATION CENTERGENERATOR

PLANT

OFF IC E OFPROTEC TIVE

SERVIC ES

SH EETMETAL/LOC KSHO P

AC TIVITYCENTER

CAL STATE CENTRALCREDIT UNION-HEALTH

& SAFETY OFF IC E

GAZEBO

CORPORATIONYARD BLDG 1

SH ED

GLASS & SIG N SHOP

PLUM BERS/MOTORPO OL STORAGE

SUBSTATIO N 1

STORAGE

GREENHO USE

FUEL STAT IO N

GARAG E

WOOD PREFAB SHED

PREFABMETALSH ED

HORSE LEAN-TO

SATELLITE TV /BARN 5

HORSE LEAN-TO

SUNRISE BLD G 7

GABLE ROOF SHED

SUNRISE-C ALF BARNPASTEURIZ ING CO OLING EQ UIPMENTDAIRY BUS STO P

SHED

EQ UESTRIAN BARN

HORSE SHELTER & C ORRALHORSE LEAN-TO

WELLPUMP HOUSE

CARPORT

GARAGE

SERVANT 'S Q UARTERS

SH ED

STORAGE SHEDS

HORSE LEAN-TO

FORMER SHO P BLDG

SH ED

GARAGE

FLAT RO OF SHELTER

SETTLING POND

PRESSUREBREAK TANK

350 ,000 G ALLO NTANK

SED IMENTATION TANK

CHEMICAL TANKSCHEMICAL TANKS

SETTLING PO ND

#1 DOM EST ICWATER STORAGE

(EAST REC YCLING TANK)

OLD BREAKERTANK PUMP HOUSE

CARPENTER STORAGE

EM ERG ENC YDIESEL TANKS

METAL HO RSECORRAL #1

METAL H ORSE C ORRAL #2SH ED

PEN #1-4

OLD SLAUGHTER HO USE

JR. FARM SH ED

PREFAB G AM BREL SHED #1-2

PREFAB GAM BREL SHED #3

JR. FARM FEED BARN

JR. FARM STORAGE SHED

POLE SUN SH AD E

PREFAB G AM BREL SHED #5

CORRAL POLE SHELTER

METAL P IC NICPOLE SH ELTER

FORMER POULTRY H OUSE

HOG SHELTER

ANIMAL SHELTER

PREFAB G AMBRELSH ED #4

FORMER INCINERATOR

LATHHOUSE CONC RETE & ROC K POND

SH ED

OUTHOUSE

HILL C REEK PEDESTRIAN BRID GE

SUNRISE RO AD CULVERT

HORSE LEAN-TO

STEAMCOND ENSATIONPUMP STAT IO N

RESIDENCE 149 & GARAGE

PEN #1-4PEN #1-4PEN #1-4

PREFAB G AM BREL SHED #1-2

STORAGE SHEDS

SH ED

GATE

ABANDO NED FRUIT DEHY DRATO R

DEMOLISHED FRUIT BLD G

STORAGE SHED

TRIC KLE F ILTER

PRIMARY CLARIFIER

PUMP HOUSE

DIG ESTER

FINAL CLARIF IER

SEWAG E BAR SC REEN

EM ERG ENC YGENERATORS

OUTDO OR C HIMNEY

ABANDO NED FRUIT SHED

FIRE PIT& STEAM V ENT

SEC OND ARY BLDG

ARNO LD BRID GE

ORDAHL PUM P STAT IO N

Arno

ld Dr

ive

Walnu

t St

Sono

ma St

Park

St

North St

Laurel St

Holt Rd

Grove St

Harney St

Wilson St.

Redw

ood S

t

Railro

ad St

Harney St

Manz

anita

Orch

ard Rd

Sono

ma C

reek

Hill Creek

Suttonfield Lake

Sunrise

Bake

r

Toyon

John Mesa Dairy

Dairy

Road Hig

hway

12

Asbury Creek

0 250 500125 '[

Figure X.XRAPID ASSESSMENT: EXISTING CONDITIONS - STRUCTURAL

Minimal Strengthening RequiredStandard Strengthening RequiredMajor Strengthening RequiredStructure Not EvaluatedBuilding Not EvaluatedBuilding/Structure Destroyed by FiresSDC Property

Sources:Page & Turnbull, JRP Historical Consulting,USGS, GreenInfo Network, Sonoma EcologyCenter, WRT

LEGEND

IN PROGRESS DRAFTMarch 8, 2018