La Plata County
LA PLATA COUNTY CRIMINAL JUSTICE CENTER
Submit fed by Linda Wong
University of Colorado at Denver in partial fulfillment for Master of Architecture Degree
December 13, 1982
To my family and friends
whose support and friendship
made this three year adventure possible
TABLE OF CONTENTS
. Project Description Scope
REGIONAL AND CITY DATA
. Ci fy of Durango Map
. Legal Description Physical Description Site Plan Subd iv i si on PI at
. Si te Building
SPATIAL LINKAGE MATRIX
CODE RESEARCH 13
. Uniform Building Code, Uniform
PIumb i ng Code
. American Correctional Assoc i a Hon
. The Project
Function Square Feet
Legal Library 2,700
District Attorney 2,025
Pub 1 ic Defender 2,025
Probation Office 1,200
Sheriff's Department 2,800
Jai 1 17,500
Circulation/To i1ets 5,200
Tot a 1 49,890
The space allocated for courts should include the county court with a clerk's office, two district courts and clerk's offices, two hearing rooms, three judge's chambers, court recorders offices, two conference rooms, court administrator's office, water clerk's office, and storage space for files.
La Plata county is considering computerizing Iheir legal Iibrary in the future. Their present needs include shelf space for legal materials plus tables and chairs. The adaptability of the space to computers, however, should be kept in mind when designing this space.
The district attorney s case load is ever increasing and thus needs room for expansion. His needs include a conference/ law library facility, reception/waiting area, offices, and a storage/file room.
The previously described district attorney's space will be very similar to the public defender's needs. This space includes a conference room, two offices, reception/waiting area, and a storage/file room.
The county of La Plata In the southwestern corner of Colorado (of which Durango Is the largest city) Is in need of a new criminal justice facility. This complex will house County and District courtrooms, court offices, district attorney's office, public defender's office, probation office, sheriff's department, and jail. Present facilities in the La Plata County Courthouse are overcrowded, with no room for expansion on the present site located in the middle of town. Intent of the design will be to follow current operational precedures of the county. Since Durango Is the largest city in the southwest region of Colorado, the La Plata County jail also holds inmates from neighboring San Juan and Archuleta counties. These two counties are small, equating to approximately of La
Plata County's population.
Program requirements to house the criminal justice functions are projected to meet space needs for the next fifteen to twenty years. They are based upon present operating functions, as the county does not currently have a criminal justice plan developed.
The La Plata County Board of Commissioners wish to keep the budget as low as possible, and still meet the needs of the county. Total costs in the realm of $5,000,000 can be expected, Including land acquisition and architectural engineering fees. Total square footage will be 35,000 to 45,000 square feet.
regional & city data
REGIONAL AND CITY DATA
La Plata County, located In the southwestern corner of the state of Colorado, contains 1683 square miles. The majority of the land In the county Is owned by government agencies, such as the Bureau of Land Management and the Indian reservations. Bounded on the north and east by the San Juan Mountains and on the south and west by the La Plata Range with mesas to the south, elevations vary from 5000 feet to over 14,000 feet above sea level at the summit of WIndom Peak. Hillsides surrounding valleys have slopes In excess of 30% gradient. Elevations surrounding Durango, the largest city of the county, vary 6400 feet to 9400 feet.
The major water basin, the Animas River, is fed by waters from the San Juan Mountains, flowing in a southerly direction. Its tributaries are Junction Creek, Florida River, and Los Pinos River. Major bodies of water Include Electra Lake, Lemon Reservoir, and Va11ecito Reservoir.
La Plata County was established in 1864, shortly after the gold rush and near the start of the cattle industry. Its principal economic base Is agriculture, mineral production and related Industries (oil, gas, uranium, vanadium), tourism, and recreation. Among the Industries showing growth In employment are mining, primary oil and gas extraction, transportatI on, communication, public utilities, wholesale and electric trade, services, and government.
The following population figures for the county and Durango Indicate the growth of the area.
La Plata County Durango
1950 14,880 7,459
1960 19,225 10,530
1970 19,199 10,333
1980 25,500 14,100
A portion of Lot 2A In Bodo Business Ranches, Section 32, T 34 1/2 N, R 9 W, N.M.P., La Plata County, Colorado which Is further described as follows:
Beginning at the Southwest corner of said Lot 2A, thence N 00 51'E
720.00 feet along the West boundary of said subdivision; thence S89 90'E 687.75 feet to the Easterly
boundary of said Lot 2A; thence S 14 00' W 298.28 feet along said boundary; thence S 3 30' W 430.00 feet along said boundary to the southeast corner of said Lot 2A; thence N 89 09'W 600.00 feet along the Southerly boundary of Lot 2A to the point of beginning and containing 10.374 acres.
The proposed site Is located approximately two miles southeast of Durango's central business district In an Industrial park known as Bodo Business Ranches. The site is situated In the northwester Iy portion of the park. Access to the park which
encompasses 250 acres Is via U.S. Highway 160-550. The streets within the park are typically 60 foot wide rights-of-way and are asphalt-paved with concrete curbs and gutters.
The City of Durango provides public water and sanitary sewer service to the area. Natural gas Is supplied by the Peoples Natural Gas Company while La Plata Electric company supplies underground electricity. Telephone lines are also underground.
The topography of the site Is a gentle downward slope to the east of approximately .05': 1' gradient. A preliminary soils analysis indicates adverse soli conditions along the westerly portion of the site. Soli along the easterly protion of the site has better bearing capacities. The site has a clear south, east, and north exposure. A hill on the west blocks out the late western sun. Natural vegetation common to a semi-arid landscape exists. There are no neighboring butldings existing that would block southern solar exposure.
The proposed site is unzoned, but must comply with the protective covenants of the industrial park:
Off-street parking is required for each 250 square feet of gross floor area used for office. With approximately 26,600 square feet of gross floor area, 107 parking spaces are required. Separate parking for the sheriff's department is desired because of security In transporting inmates. Staff parking may also be separate from public parking.
Although there is no green space requirement In the protective covenants, the site is large enough to provide open space for public use as well as a security perimeter.
Legal Library 2,700
District Attorney 2,000
Pub 1ic Defender 2,000
Probation Office 1,100
Sheriff's Department 2,800
Jai 1 11,200
Ci rcu1 ation/Toilets 5,000
The space allocated for courts should Include the county court with a clerks office, two district courts and clerk's offices, two hearing rooms, three judge's chambers, court recorders offices, two conference rooms, court administrator's office, water clerk's office, and storage space for files.
La Plata county is considering computerizing their legal library in the future. Their present needs include shelf space for legal materials plus tables and chairs. The adaptability of the space to computers, however, should be kept in mind when designing this space.
The district attorney's case load is ever increasing and thus needs room for expansion. His needs include a conference/ law library facility, reception/waiting area, offices, and a storage/file room.
The previously described district attorney's space will the public defender's includes a conference reception/waiting storage/file room.
be very similar to needs. This space room, two offices, area, and a
The 1200 square feet required for the probafion office will include a reception/waiting office plus offices for each of the probation officers.
The proximity of the sheriff's department to the jail is mandatory. This 2800 square feet requirement will include offices for the sheriff and his officers, a squad/training room, locker and shower facilities for male and female officers, facilities for interviewing and report writing, and evidence and equipment storage.
With an inmate capacity of fifty, the jail space requirement of 17,500 square feet will include a secure vehicular sally port, intake/transfer/reI ease/ short-term holding area, booking/ interview area, administration office/ information desk, conference/attorney consultation room, visiting/visitors lockers, health care support area, secure detention/residentia I area, multipurpose rooms for inmate activities
with storage area, kitchen/food storage,
Iaundry/housekeeping, work release area, and general support.
The vehicular sally is a secure open enclosure for parking law-enforcement vehicles while transferring prisoners in and out of the facility. The size of this area is determined by the number and size of vehicles to be accommodated.
The intake/transfer/release/short-term holding area should contain short-term holding cells, a booking counter and support office, check/search area, personal and property storage, space for ID/photo/fingerprints, telephones, conference rooms, file storage, and public toilets as well as the public entrance/lobby.
Inmate detention may be classified according to types. Intake holding will be for new arrivals to be held up to 72 hours. Short-term detention is for over 72 hours. Special holds are for isolation requirements because of safety or security. Detention/residentia I areas are for inmates sentenced up to
one year. Work release areas are minimum security. Each type of detention need not all be grouped within the same area. Separation between types is necessary because of differing security requirements. Detention areas will include living units at 72 square feet each, day rooms at 35 square feet, and showers. Depending on the type of detention, other nearby areas will include staff offices, counseling rooms, indoor recreation/multi-purpose rooms, and an outdoor exercise area.
The health care support area will include treatment rooms as well as a professional's office. Laundry facilities will be for the inmate's personal clothing. Institutional issues such as linen and towels are assumed to be contracted out. Storage space also needs to be included in the laundry facility. The general support area includes space for storage, maintenance, and a service entrance.
spatial linkage matrix
SPATIAL LINKAGE MATRIX
SPACE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
1. COUNTY & DISTRICT COURTS * 2 2 1 1 1 1 1 1 1 2 1
2. COURT CLERKS OFFICES * 1 1 1 1 1 1 0 1 1
3. CONFERENCE ROOMS * 0 0 1 1 1 0 0
4. COURT ADMIN. OFFICES * 1 0 1 1 1 0 1
5. WATER CLERK OFFICE * 1 0 0 0 1 1
6. LEGAL LIBRARY * 2 1 1 0 1 1
7. DISTRICT ATTORNEY * 1 0 1 1
8. PROBATION OFFICE * 1 0 1 1
9. SHERIFF OFFICES * 2 1 1 2 1 0 1 0 0 0 0 0 1 2
10. SQUAD/TRA1N1NG ROOM * 2 0 0 0
11. LOCKER ROOM * 0 "
12. CONFERENCE ROOMS * 1 1
13. VEHICULAR SALLY PORT * 2 0 0 2
14. BOOKING AREA * 2 2 1
15. JAIL VISITING AREA * 2 1 1 1
16. CONTROL ROOMS * 2 2 1 1
17. DETENTION AREAS * 1 0 1
18. MULTIPURPOSE ROOM * 0
19. KITCHEN * 0 1
20. LAUNDRY * 0
21. MAINTENANCE * 0
22. MECHANICAL * 0 1
23. PUBLIC RESTROOMS * 2
24. MAIN ENTRY * 0
25. SECONDARY ENTRY *
MATRIX KEY 2 MAJOR LINKAGE 1 MINOR LINKAGE 0 INDIRECT LIINKAGE
Based on the UNIFORM BUILDING CODE,
1982, and the UNIFORM PLUMBING CODE,
A-3: Any building or portion of a
building having an assembly room with an occupant load of less than 300 without a stage,
including such buildings used for educational purposes and not classed as a Group E or Group B, Division 2 Occupancy.
1-3: Mental hospitals, mental
sanitariums, jails, prisons, reformatories and buildings where personal liberties of inmates are similarly
Fire Separations Between Occupancies:
. 3 Hour: Between A-3 and 1-3
. 2 Hour: Between B-2 and 1-3
. No requirement: Between A-3 and
The type of construction has not been determined yet, but shall follow the tables below:
BASIC ALLOWABLE FLOOR AREA (square feet)
Occupancy Types Of Construction
1 f .r. 1 1 f.r. 1 hr. N* 11 1 1 hr. N IV h.t. V 1 hr. N
A-3 un1imited 29,900 13,500 9,100 13,500 9,100 13,500 10,500 6,000
B-2 uniimited 39,900 18,000 12,000 18,000 12,000 18,000 14,000 8,000
I-3 uniimited 15,100 not permitted
Occupancy Types Of Construction
1 f .r. 1 1 f.r. 1 hr. N* 1 1 1 1 hr. N IV h.t. V 1 hr. N
(FEET) uniimited 160 65 55 65 55 65 50 40
Occupancy A-3 (Stories) un1imited 12 2 1 2 1 2 2 1
1-3 un1imited 2 not permitted
fire resistive heavy timber
no requirements for fire resistance one hour
Automatic Fire Sprinklers
Required at every story or basement of all buildings when the floor area exceeds 1500 square feet and there Is not at least 20 square feet of opening entirely above the adjoining ground level in each 50 lineal feet or fraction thereof of exterior wall in the story or basement on at least one side of the bu iId ing.
Openings shall have a minimum dimension of not less than 30 inches.
Wet standpipes required in 1-3 occupancies less than four stories in height, but greater than 20,000 square feet floor in a nonsprinkIered building.
In jails, the piping system may be dry, provided that a manually operated valve is installed at a continuously monitored location.
ALLOWABLE FLOOR AREA INCREASES
. For Added Stories: 1 story with
approved automatic sprinkler system.
For Separation: 2 sides 1 1/4? per foot, maximum 50?, minimum width of 20 feet.
3 sides 2 1/2? per foot, maximum 100?, minimum width of 20 feet.
4 sides 5? per foot, maximum 100?, minimum width of 20 foot.
For Automatic Fire Sprinklers: Areas tripled in one story buildings; doubled if more than one story.
WALL AND OPENING PROTECTION OF OCCUPANCIES BASED ON LOCATION ON PROPERTY (TYPES 11-1 HOUR, III IV, AND V CONSTRUCTION)
Fire Resistance of Openings in
Occupancy Exterior Walls_______ Exterior Walls
A-3 2 hours: less than 5 ft. 1 hour : less than 40 ft. Not permitted less than 5 ft. Protected less than 10 ft.
B-2 1 hour : less than 20 ft.
1-3 2 hours: less than 5 ft. Not permitted less
than 5 ft.
1 hour : elsewhere Protected less than
0 10 ft.
TOILET FACILITIES REQUIREMENTS
Type of Occupancy Water Closets Urinals Lavatories Dr inking Fountains
Male Female Male Female
Assembly Areas 4 4 4 3 3 7
Office or Public BuiIdings 7 7 7 7 3
Penal Institutions for prisoner use CELL 1 per cel 1 1 per cel 1 1 per cel I block floor
EXERCISE ROOM 1 per room 1 per room 1 per room 1 per room
One handicapped stall must be provided in each restroom (male & female).
Occupancy Group S.F. per S.F. per Total
Area Occupant Occupancy
Assembly areas 7,500 + 15 500
Offices 18,800 + 100 188
Al1 Others 11,200 100 112
Access in a primary entrance must be provided for the physically handicapped by means of a ramp or an elevator.
The total width (in feet) of exits required shall not be less than the occupant load/50. The distance between exits shal I be equal to not less than 1/2 the length of the maximum overall diagonal dimension of the building or area to be served measured in a straight line between exits. The maximum distance of travel to an exit shall be 150 feet in a nonsprinklered building or 200 feet in a sprinklered buiIding.
A double acting door shall not be used as an exit when the occupant load is 100 or more. Exit doors shall be at least 6'-8" in height and be 3'-0" to 4'-0" in width swing in the direction of egress, and open 90. Exit signs shall be at required exit doorways and where necessary to direct egress when an exit serves an occupant load of 50 or more.
Corridors shall be at least 44" i n
width and 7'-0" i n height for an
occupant load of 10 or more. Dead end
corr i dors shall not 1ength. exceed 20' i n
Stairs shall be a minimum of 44" in width serving an occupant load of 50 or more. The landing width shall also be at least 44" in width. Maximum vertical height between landings shall be 12 feet. A minimum riser shall be 4", the maximum 7 1/2". Treads shall not be less than 10".
For stairways greater than 88" in width, additional railings are required in the center. Handrails shall be a minimum of 30" and not more than 34" above tread nosing, and shall extend 6" beyond the nosing on at least one side.
Ramps must be at least 44" in width and must not exceed 1:12 slope for the handicapped (others 1:8) and provide a 5'-0" landing for each 5' of rise. Handrail requirements are the same as required for stairs.
In areas with fixed seating, the aisle width shall be at least 3'-0" when bounded by a wail on one side, and 44" when bounded by seating on each side.
ACCESS TO TOILETS
Water closets require 30" clear width and 24" clear in front. At least one water closet for the handicapped must be provided in each restroom. Restroom doors shall have a minimum clearance of 2'-10". An unobstructed 5'-0" diameter turning radius shall be maintained In each restroom. The handicap stall must have a clear width of 42" by 48" In length in front of the water closet.
UNIT LIVE LOADS
Use Un i form Concentrated
offices 50 2000
assembIy areas (fixed sets) 50 0
movabIe seats 100 0
Based on STANDARDS FOR ADULT LOCAL DETENTION FACILITIES, Second Edition, by the American Correctional Association. (These Standards apply for plans approved after January 1, 1982).
The intake/booking and release area located Inside the security perimeter but outside inmate living quarters shall contain the following: booking area, sally port, access to drinking water, shower facilities, secure storage for inmates' personal property, telephone facilities, private Interview spaces, temporary holding rooms with sufficient fixed seating, and operable toilets and wash basins. This area should be designed so that newly admitted inmates may be processed in a thorough, humane, and orderly manner. Provisions should be made to ensure the safety of inmates and personnel, and the security of the faciIity.
Cells and detention rooms designed for single occupancy shall be occupied by only one inmate.
All rooms or cells shall have access to these sanitation facilities: toilet, wash basin and drinking water, shower facilities, hot and cold running water. In addition, each room or cell shall have a bed above floor level, desk or writing surface, hooks or closet space, chair or stool .
Lighting should be at least 20 foot candles at desk level. Natural lighting should be available either by cell or room windows to exterior or from a source within 20 feet of the room or cell.
Toilet facilities can be located either in the cell or outside tf it is available at all times without staff assi stance.
Sensory deprivation should be reduced by providing variety in terms of space, surface textures, and colors.
When both males and females are housed in the same facility, they are provided separate sleeping quarters which are separated visually as well as acoustical Iy.
There shall be at least two (2) Identifiable exits In each inmate housing area/cell block and other high density areas for evacuation under emergency conditions. Such exits should lead directly to a hazard-free area where adequate supervision can be prov i ded.
When seriously ill, mentally disordered, or nonambulatory Inmates are held in the facility, there should be at least one single-occupancy cell or room providing for continuing staff observation. Temporary medical facilities should be prov i ded.
When the facility provides food service, the kitchen has a minimum of 200 square feet of floor space. Excluding the food storage area, kitchen floor space should be the equivalent of ten (10) square feet per Inmate; this maybe reduced proportionally for larger facilities.
There should be at least one multipurpose room available for inmate activities located near Inmate living areas.
Storage space should be provided for clothing, bedding and facility supplies, and inmates' personal property.
Ventilation should be at least ten (10) cubic feet of outside or recirculated filtered air per minute per human occupant for living areas and staff areas, and twenty (20) cubic feet per minute for eating halls.
All ceils and detention rooms shall be designed for single-occupancy only with a minimum of 70 square feet of floor space in detention facilities. In holding facilities, single cells and rooms shall have a minimum of seventy (70) square feet of floor space, a minimum of seven (7) feet between walls and no less than eight (8) feet between floor and ceiling. There should be at least one special purpose cell or room in which to house handicapped inmates. All areas of the facility, including public areas, should be accessible to the physically handicapped.
A day room shall be provided for each cell block or detention room cluster. It should have a minimum of thirty- five (35) square feet of floor space per inmate and be separate from the adjacent sleeping area. They should be equipped with tables and attached chairs or seats. In facilities without central dining facilities, day rooms may also be used for dining. Circulation corridors
of three (3) feet In width In front of cells should not be Included In computing day room area.
In facilities housing less than 100 Inmates, Indoor and outdoor exercise areas shall provide a minimum of fifteen (15) square feet per Inmate. These areas should be secure and available to all Inmates.
Floor drains shall be constructed In all living and activity areas but outside cells. In addition, the facility should be equipped with an emergency shut-off valve.
Sally Duncan, Attorney at Law (Owners' Representative) Chairperson, La Plata County Board of Conmni ssioner s La Plata County Courthouse Durango, Colorado
Harry L. Baxter, NIC Jail Consultant Baxter Architects 1212 West Charles Champaign, 11 Iinoi s
Bruce Bounds Larry Linke
National Institute of Corrections 1790 30th Street Boulder, Colorado
Kenneth D. Camp, Architect and Engineer KDC Architects, P.S.C.
100 Fillmore Street, Suite 360 Denver, Colorado
American Directional Association, Standards For
Adult Local Detention Facilities, Second Edition, 1982.
Baxter, Harry. Technical Assistance Report for La Plata County, Colorado" Baxter Architects, Champa ign, Illinois, f982.
Chase and Company. Redfleld Building Appraisal, Denver, Colorado 1979.
Farbstein, Williams & Associates, Correctional
Planning Handbooks, for State of California Youth and Adult Correctional Agency, Board of Corrections, 1981.
Uniform Building Code, 1982.
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FIRST FLOOR PLAN
LA PLATA COUNTY
CRIMINAL JUSTICE CENTER
SECOND FLOOR PLAN
LA PLATA COUNTY CRIMINAL JUSTICE
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Linda Wong May 10Q3
TYPICAL HOUSING BLOCK PLAN
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U.C.D. Master's Thesis
Linda Wong May 1003