[Ord. No. 508 §1, 11-4-2002]
In the Board of Aldermen and Commission's consideration of applications for plat approval, the standards as set forth in this Chapter shall be considered minimum requirements.
[Ord. No. 508 §1, 11-4-2002]
A.
The following standards are regarded as guidelines for desirable development. The size, shape and orientation of lots shall be designed to provide desirable building sites and logically related to topography, natural features, streets and adjacent land uses. Consideration shall be given to natural features such as large trees; unusual rock formations; watercourses; and sites which have historic significance, scenic views and similar assets, the preservation of which would add attractiveness and value to the subdivision. The following minimum standards are set forth as guides to these goals:
1.
Where additional widening strips are dedicated on existing streets, calculations of the area of a lot should not include the dedicated strips in determining the gross area of the lot. Dedicated widening strips shall be required for all proposed subdivisions which front along a County road. The area of all lots must be calculated exclusive of the street right-of-ways.
2.
Where there is a question as to the suitability of a lot or lots for their intended use due to factors such as rock formations, soil conditions, steepness of terrain, flood conditions or other adverse natural physical conditions, the Commission may, after adequate investigation, withhold approval of such lots until engineering studies are presented to the Commission which establish that the methods proposed to meet any such condition are adequate to avoid significant danger to health, life or property.
3.
Alleys are undesirable except where alleys of adjoining subdivisions would be closed off from access by the failure to provide alleys in new subdivisions.
4.
Exhibit "A" of this Chapter summarizes the design standards and improvements to be observed in subdivision development.
[Ord. No. 508 §1, 11-4-2002]
A.
The size, orientation and dimensions of lots shall be appropriate for the location and physical character of the proposed subdivision and for the type of development contemplated in compliance with the applicable zoning regulations. Building lines shall be shown on all lots intended for residential use and "setback" shall conform to zoning regulations requirements.
1.
Depth. Excessive depth in relation to width shall be avoided. A proportion of one (1) to one (1) or two (2) to one (1) will normally be considered appropriate, unless topography is such that other lot dimensions allow for proper development. Lots with a depth in excess of three (3) times the lot width shall not be allowed unless specifically approved by the Commission and the Board of Aldermen.
2.
Street access. Each proposed lot shall front upon a street improved to standards and specifications of the City of Foristell, unless the lots front on a private roadway.
3.
Width. Lots for residential purposes shall have sufficient width at the building setback lines to permit compliance with side yard or distance requirements of the applicable zoning regulations and still be adequate for a building of practicable width. The minimum lot width required for a lot fronting on a circular turnaround shall be measured along a line tangent to the setback line at a point midway between the side lot lines.
4.
Double-frontage. Lots with double frontage and reversed frontage shall be avoided, except where necessary to provide separation of development from traffic arteries or as otherwise required by topography or similar conditions.
5.
Side lot lines. Side lot lines shall be at right angles to straight streets and radial curved streets except where said radial lot lines detract from desirability of the lot, in which event some deviation may be allowed.
6.
Corner lots. Corner lots for residential use shall be platted to permit compliance with the yard and setback requirements for the applicable zoning regulations. The right-of-way radius on corner lots shall be a minimum of twenty-five (25) feet or in the case of a straight line, the line connecting two (2) points twenty-five (25) feet distance from the intersection of the projected lot lines.
7.
Markings. The corners of all lots shall be marked with iron stakes or, if the front property line is contiguous to a street, by an approved recognizable mark on street or curb as specified by the Missouri Land Survey Authority.
[Ord. No. 508 §1, 11-4-2002]
A.
In addition to the standards of this regulation which are appropriate to the platting of all subdivisions, the subdivider shall demonstrate to the satisfaction of the Commission that the street, parcel and block pattern proposed is specifically adapted to the uses anticipated. The following standards shall therefore be observed:
1.
Proposed industrial parcels shall be suitable in area and dimensions to the types of industrial development anticipated.
2.
Street right-of-way and pavement shall be adequate to accommodate the volume of traffic anticipated.
3.
Every effort shall be made to protect adjacent residential area from the proposed non-residential subdivision, including the provision of extra depth in parcels adjacent to an existing or potential residential development and provisions for a permanently landscaped buffer strip where indicated by the Planning Commission.
4.
Streets carrying non-residential traffic, especially truck traffic, shall not be extended to the boundaries of adjacent residential areas and not be connected to streets intended for predominantly residential traffic.
[Ord. No. 508 §1, 11-4-2002; Ord. No. 621 §2, 10-18-2004]
A.
General Standards.
1.
Streets shall conform to existing topography as nearly as possible. Streets shall intersect as nearly as possible at right angles. Street jogs with centerline offsets of less than one hundred twenty-five (125) feet are prohibited.
2.
Streets will not be approved which are subject to flooding or frequent inundation.
3.
The system of streets designated for the subdivision, except in unusual cases, must connect with any streets already dedicated in adjacent subdivisions; and where no adjacent connections are platted, must in general be the reasonable projection of streets in adjacent tracts and must continue to the boundaries of the track subdivided so that other subdivisions may connect therewith.
4.
The City Engineer may require a street to be dedicated to public use in order to provide circulation.
B.
Street Right-of-Way And Utility Easement Requirements.
1.
Highways and major thoroughfares. Refer to Exhibit "A" set out at the end of this Chapter.
2.
Collector streets. Refer to Exhibit "A" set out at the end of this Chapter.
3.
Minor, stub and cul-de-sac streets. Refer to Exhibit "A" set out at the end of this Chapter. All cul-de-sac and stub streets shall have a turnaround radius of fifty-two (52) feet. The Planning Commission may approve a "T" or "Y" shaped paved space instead of a required turning circle. Turnarounds may not be required on stub streets which are less than two hundred fifty (250) feet in length and are planned to be extended in the future. All stub streets in excess of two hundred fifty (250) feet in length must provide a temporary turnaround with "end of roadway" markers mounted on "U" channel signpost. Each marker shall consist of an eighteen (18) inch diamond reflectorize red panel. The bottom of each panel shall be mounted a minimum of four (4) feet above the permanent surface and installed at end of pavement.
4.
Utility easements. Utility easements, where required, shall be at least ten (10) feet wide (five (5) feet on each side of lot line) along rear, front and side lot lines. Easements of adequate width shall be provided for open drainage channels, where required. Easements five (5) feet wide may be allowed for underground cable installations. Telephone and electric power lines shall be located underground.
5.
Utility/roadway easements. A minimum of fifteen (15) foot utility/roadway easement shall be required adjacent to all City, County and State right-of-way. Such utility/roadway easements shall also include space to work on such utility and/or roadway.
6.
No through streets. In subdivisions with no through streets, a fifty-five (55) foot pavement radius and a sixty-seven (67) foot right-of-way radius is required in order to facilitate school bus circulation for each cul-de-sac in excess of one thousand three hundred (1,300) feet in length.
C.
Minimum Pavement Widths. The following dimensions shall be considered the minimum requirements for the pavements listed below.
1.
Highways, major thoroughfares and collector streets. Thirty-six (36) foot minimum. The developer must take up exceptions to this requirement with the officials having jurisdiction and the Board of Aldermen.
2.
Minor, stub and cul-de-sac streets. Twenty-six (26) foot minimum. The pavement of a turning circle at the end of a cul-de-sac street shall have a minimum outside diameter of eighty (80) feet.
A "T" or "Y" shaped paved space, when approved by the Planning Commission in place of a turning circle, shall extend entirely across the width of the street right-of-way, except for sidewalk space, and shall be at least ten (10) feet wide with the flared portion rounded by a minimum radii of twenty (20) feet.
3.
Alleys and service drives. Eighteen (18) feet minimum.
4.
Sidewalks. Sidewalks are required on one (1) side of the street. Both sides may be required at the discretion of the Board based on a recommendation of the Planning and Zoning Commission. Sidewalks shall have a minimum pavement width of four (4) feet and shall have a minimal lateral slope of one-fourth (¼) inch per foot of width. Sidewalks shall be placed within the street right-of-way, one (1) foot away from the property line. Sidewalks shall be four (4) inch thick concrete except in driveways where it shall be six (6) inches. Driveway aprons shall not break the sidewalk level. Wheelchair ramps shall be installed at all street intersections according to Federal regulations. Sidewalks are not required in industrial areas. Maintenance of sidewalks shall be the responsibility of the adjacent property owner.
5.
Driveways. Driveways shall be constructed adequately for all-weather use and so drained as to avoid flow of water across sidewalks and adequately maintained to prevent dust, potholes, chipping and loose surface material and are at least as wide as the garage door opening. Approved construction materials shall include Portland cement concrete (with or without exposed aggregate finish), asphaltic concrete, asphalt double-seal surfaces, brick/stone pavers or other materials of equal quality as approved by the City Engineer.
[Ord. No. 508 §1, 11-4-2002]
A.
The grades of streets shall not exceed the following, except where unusual or exceptional conditions exist. The Planning Commission may modify these conditions upon recommendation of the City Engineer.
1.
Highway and major thoroughfares. Six percent (6%).
2.
Collector streets. Eight percent (8%).
3.
Minor streets, service drives and alleys. Ten percent (10%).
4.
Pedestrian ways or crosswalks. Five percent (5%), unless steps of an acceptable design are to be constructed.
5.
Minimum grade. In no event shall the minimum grade be less than three-quarters percent (0.75%).
[Ord. No. 508 §1, 11-4-2002]
A.
Street name signs meeting the requirements of the City of Foristell shall be erected by the developer at all intersections.
B.
Stop signs, yield signs, street signs, speed limit signs, etc., shall be non-illuminated, non-electric and reflectorize. They shall conform to "current" manual on uniform traffic control devices, be provided and paid for by the developer and located as determined by the City Engineer.
C.
Whenever a new street is constructed along the alignment or extension of an existing street, its name shall be the same as that of the existing one.
D.
Whenever a cul-de-sac street serves not more than three (3) lots, the name of the intersecting street shall apply to the cul-de-sac.
E.
To avoid duplication and confusion, the proposed names of all streets shall be approved by the St. Charles/Warren County Central Dispatch prior to preliminary plat approval and such names being assigned or used.
[Ord. No. 508 §1, 11-4-2002; Ord. No. 545 §1, 6-2-2003; Ord. No. 604 §§1 — 2, 7-7-2004; Ord. No. 621 §3, 10-18-2004; Ord. No. 742 §§1 — 2, 5-4-2009]
A.
Public Street Construction. Streets shall be graded to full width of the right-of-way. Required paved width, mix, design and placement shall be in accordance with the pavement specifications set forth by St. Charles County or equivalent Missouri Department of Transportation specifications as determined by the City Engineer:
1.
Portland cement concrete on minor streets. Ninety percent (90%) compacted subgrade and six (6) inches of concrete. The subgrade shall be compacted and tested in place to attain ninety percent (90%) maximum density as determined by modified proctor analysis. Testing shall be conducted approximately every two hundred (200) feet along the length of the road. If testing indicates areas that are not at ninety percent (90%) compaction, the unsatisfactory material shall be removed and the area shall be over dug to dry firm material, replaced with either earthen material or base aggregate, compacted to required compaction and retested.
2.
Portland cement concrete on collector and arterial streets. Ninety percent (90%) compacted subgrade and seven (7) Inches of concrete. The subgrade shall be compacted and tested in place to attain ninety percent (90%) maximum density as determined by modified proctor analysis. Testing shall be conducted approximately every two hundred (200) feet along the length of the road. If testing indicates areas that are not at ninety percent (90%) compaction, the unsatisfactory material shall be removed and the area shall be over dug to dry firm material, replaced with either earthen material or base aggregate, compacted to required compaction and retested.
3.
Flexible asphaltic cement concrete.
a.
Subgrade. The subgrade shall be compacted and tested in place in accordance with Section 410.240(A) of Foristell Subdivision and Land Development Regulations to attain ninety percent (90%) maximum density as determined by modified proctor analysis. Testing shall be conducted approximately every two hundred (200) feet along the length of the road. If testing indicates areas that are not at ninety percent (90%) compaction, the unsatisfactory material shall be removed and the area shall be over dug to dry firm material, underlain with geotextile and backfilled with one and one-half (1½) inch clean aggregate followed by two (2) inches of three-quarter (¾) inch minus aggregate on top.
b.
For minor residential and collector streets, the aggregate base shall consist of four (4) inches of one and one-half (1½) inch clean aggregate overlain by two (2) inches of three-quarter (¾) inch minus aggregate for a total aggregate base of six (6) inches. The aggregate base shall be shaped to a two percent (2%) crown or one percent (1%) super-elevated slope where applicable, proof-rolled and primed coated. The prime coat shall be MC-30 applied at a rate of two-tenths (0.20) to one-half (0.50) gallons per square yard. The width of the aggregate base shall be widened so that it is two (2) feet wider than the width of the asphaltic concrete cement, extending one (1) foot beyond the pavement on each side. As an alternate option, the aggregate base may be underlain with geotextile fabric in which case only three (3) inches of one and one-half (1½) inch clean aggregate and one and one-half (1½) inches of three-quarter (¾) inch minus aggregate would be required for total of four and one-half (4½) inches.
c.
For minor residential streets, the pavement surface shall consist of asphaltic cement concrete (ACC) placed in two (2) courses, a three (3) inch thick binder base course of Type "X" asphaltic concrete and a one and one-half (1½) inch thick wearing course of Type "C" asphaltic concrete. Mix design and placement for asphaltic concrete shall be in accordance with the pavement specifications set forth by St. Charles County or equivalent Missouri Department of Transportation specifications. The pavement shall be installed using equipment with an automatic screed.
d.
For collector streets, the pavement surface shall consist of asphaltic cement concrete (ACC) placed in two (2) courses, a five (5) inch thick binder base course of Type "X" asphaltic concrete and a two (2) inch thick wearing course of Type "C" asphaltic concrete. Mix design and placement for asphaltic concrete shall be in accordance with the pavement specifications set forth by St. Charles County or equivalent Missouri Department of Transportation specifications. The pavement shall be installed using equipment with an automatic screed.
e.
Existing asphaltic and Portland cement concrete street access driveways shall receive a full depth saw cut at the intersection of the slope of the drive transition. The ACC thickness shall match the existing driveway but not contain less than a two and one-half (2½) inch thick binder base and one and one-half (1½) inch thick wearing course. A one-half (½) inch asphalt impregnated expansion joint shall be installed between street pavement and all Portland cement concrete driveways. Joints with ACC driveways shall be sealed with AC-30 a minimum of two (2) inches either side of the joint and dusted with dry sand.
Before streets are constructed, soil tests shall be performed on the subgrade by a licensed soil-testing firm and submitted to the City Engineer for approval. Soil tests by a licensed soil-testing firm for every two (2) feet of fill, on all fill areas in the roadways shall also be submitted to the City Engineer for approval. No traffic will be allowed on newly constructed streets until it has cured for at least seven (7) days, and has reached four thousand (4,000) psi, as certified by an Engineering Test Lab. The street shall not be approved unless it reaches four thousand (4,000) psi. |
B.
Improvements To Existing Streets. For any development fronting on an existing road or street, it shall be the responsibility of the developer to bring the road or street up to City specifications, as required, to the centerline of the road or street.
C.
Designation Of Private Streets. For any subdivision having private streets, the developer must construct a sign at all entrances of the subdivision, within fifty (50) feet of the centerline of the road, which shall state: "Private Streets Maintained by Property Owners". These signs shall be installed by the developer where they are easily visible to anyone entering the subdivision and maintained in good order by the developer until the last lot in the subdivision is sold. The minimum size for each sign shall be twelve (12) inches high by eighteen (18) inches wide with two (2) inch high letters. Private streets shall be built to public street standards.
D.
Approval Of Subgrade. The City Engineer shall approve the subgrade before any base course or surface is placed thereon. The subgrade shall be so constructed that it will be uniform in density throughout. The entire width and length will conform to line, grade and cross section shown on the plans or as established by the Engineer. If any settling or washing occurs or where hauling results in ruts or other objectionable irregularities, the contractor shall reshape and reroll the subgrade before the base or surfacing is placed. Tolerance allowed on all lines, grades and cross sections shall be plus or minus four hundredths (0.04) feet.
E.
Utility Work Prior To Base Construction. No base course work may proceed on any streets until all utility excavation (storm and sanitary sewers, water, gas, electric, etc.) have been properly backfilled with granular material, crushed stone or gravel, mechanically tamped in ten (10) inch lifts or jetted with water and allowed to set for a length of time satisfactory to the City Engineer.
F.
Required Joint Details In Concrete Streets. Construction joints shall be as required in all concrete roadways. St. Charles/Warren County Highway Department specifications shall apply. In addition:
1.
Transverse construction joints shall be spaced sixteen (16) feet apart.
2.
Longitudinal construction joints shall be Type C with bars.
3.
Expansion joint A-2, from St. Louis County pavement construction details, shall be allowed in addition to Type A and AA expansion joints.
4.
Expansion joints in the driveway approach area shall be one (1) inch at the back of curb. In all cases if the driveway approach depth exceeds the minimum six (6) inch thickness, the joint material shall extend the full depth of pavement. No concrete to concrete interface.
G.
Special Precautions.
1.
It shall be the developer's responsibility to ensure that all residential streets are designed and installed with proper expansion joints that will reduce the adverse effects of street creep. It shall be the builder's responsibility to ensure that all residential driveways and walkways are designed and installed with proper expansion joints that will reduce the adverse effects of street creep.
2.
Expansion joints must be cut completely through the total thickness of the concrete. An expansion joint filler shall be installed and sealed with a joint sealer on the bottom to the top of the surface of the concrete. The developer's engineer shall identify on the record plat any lot which special precautions should be taken to prevent damage to any driveway or structure caused by the force of street creep. The ultimate responsibility shall remain on the developer to prevent and remedy street creep at the street, and the builder's responsibility to prevent and remedy street creep at residential driveways and walkways.
[Ord. No. 508 §1, 11-4-2002]
A.
As part of public street construction, permanent and distinguishable monuments shall be accurately placed throughout the subdivision so that street alignment may be accurately traced. Monuments shall be of iron pins not less than one-half (½) inch diameter and three (3) feet long driven into the earth or spikes not less than six (6) inches long driven into the pavement or something equal thereto. Monuments are to be installed by the developer as soon as reasonably possible. The location of all monuments shall be indicated on the record plat and shall be placed in accordance with the following requirements:
[Ord. No. 508 §1, 11-4-2002]
A.
Storm Sewers. In addition to the installation of curbs and gutters along the streets as required by this Chapter, storm sewers shall be required. Such systems will be equipped with adequate basins, inlets and outlets. The stormwater drainage system shall be separate and independent of the sanitary sewer system. Proposed stormwater plans must be approved by City Engineer.
B.
Engineer's Seal. All construction details and specifications pertaining to stormwater drainage shall be by an engineer. A registered engineer's seal is required on all drainage plans submitted for approval.
C.
Design Criteria. All stormwater design is to be by the rational method, except that in certain large developments, the use of other methods such as the unit hydrograph will be considered for stormwater design.
[Ord. No. 508 §1, 11-4-2002; Ord. No. 614 §1, 9-20-2004]
A.
All buildings, structures and uses of land in the incorporated area of the City of Foristell shall be required to have adequate, safe and sanitary disposal system of all human or otherwise liquidated wastes and shall conform to the following methods:
1.
Where, in the opinion of the City, a public sanitary sewer main is reasonably accessible, the developer shall provide the subdivision with a complete sanitary sewer system adequate to serve the area being platted, including a connection for each lot, and connected with City sewer main(s) as approved by the Board of Aldermen. The developer is responsible for providing all sewer connections, mains, service lines and such additional treatment plant capacity and pumping facilities as may be required by the Board of Aldermen to provide adequate sanitary sewer services to the proposed subdivision. Such systems anal connections shall comply with the regulations of the Missouri State Board of Health and the Missouri Department of Natural Resources and the City of Foristell.
2.
It shall be the responsibility of the developer/applicant to comply with all requirements of the City of Foristell. Verification of the service shall be provided at the time of submission of the preliminary plat. The developer is responsible for providing all sanitary sewer connections, mains, service lines and such additional wastewater treatment capacity, transmission lines, storage, pumping or other facilities as may be required by the Board of Aldermen.
3.
As determined by the Board of Aldermen, where no sewers mains are accessible and no plans for a sewer system have been prepared and approved, the developer shall either install a sewage collection and disposal system in accordance with requirements of Subsection (2) above or, if approved by the Planning and Zoning Commission and the Board of Aldermen, individual disposal devices may be installed on each lot within the subdivision, provided the lots have sufficient area to allow adequate soil absorption for on-site sewage disposal. The Planning Commission may modify lot area requirements in relation to soil conditions and other pertinent facts and findings in any particular subdivision. All such individual devices and systems shall be constructed and maintained in accordance with the requirements and regulations of the Missouri Department of Natural Resources and be approved by the Planning and Zoning Commission, the City Engineer and the Board of Aldermen.
4.
In no case shall there exist, on lots of less than three (3) acres in area, both individual water systems and sanitary sewage disposal systems.
[Ord. No. 508 §1, 11-4-2002]
Each subdivision shall be provided with a complete water distribution system adequate to serve the area being platted, including a connection for each lot, and appropriately spaced fire hydrants. The water system design shall be approved by the City Engineer and the Board of Aldermen. The developer is responsible for providing all water connections, mains, service lines and such additional water supply, storage, wells and pumping facilities as may be required by the Board of Aldermen to provide adequate water services to the proposed subdivision. Individual water wells are prohibited unless specifically approved by the Planning Commission and Board of Aldermen.
[Ord. No. 508 §1, 11-4-2002]
All lines for telephone, electrical, television and other utility services distributed by wire, cable or gas line shall be placed underground throughout the subdivision. Overhead lines may be permitted upon recommendation of the Planning and Zoning Commission and approval by the Board of Aldermen at the time of approval of the preliminary plat, if it is determined that such lines will not impair the health, safety, general welfare, design, appearance and character of the subdivision and only where such overhead lines are brought to the perimeter of the subdivision. This Section shall not be construed to prohibit the construction of above ground or surface equipment associated with an underground distribution system such as, but not limited to, surface-mounted transformers, power terminal pedestals, meters and meter boxes, concealed wires, street lights and street light poles.
[Ord. No. 508 §1, 11-4-2002]
A.
Public Utilities. All underground public utility installations, including lines for street lighting systems, which traverse privately-owned property, shall be protected by easements granted by the developer to the appropriate public utility and approved by the public utility. Such easements shall be so located as to not interfere with the use of any lot or other part of the subdivision. The size of and the restrictions pertaining to such easements shall be in accordance with the standards and specifications of the agency having jurisdiction over the utility lines and subdivision and shall be indicated on the record plat submitted for approval.
B.
Stormwater. Stormwater easement and drainage rights-of-way may be required by the City of Foristell if necessary for proper drainage within or through a subdivision. Where a cut or fill for a street extends beyond the limits of the right-of-way, the developer may provide a slope easement as determined by the City Engineer to be of sufficient area and limits to permit the construction and maintenance of the slope.
C.
Streams. Whenever a stream or surface drainage course is located in an area proposed for a subdivision, the developer shall provide an easement determined by the City Engineer to be adequate in area to contain facilities to control flooding or erosion along said stream or surface drainage course.
[Ord. No. 508 §1, 11-4-2002]
A.
Exceptions. The following is a list of exceptions in this Chapter for large lot subdivisions. All other requirements of this Chapter must be met.
1.
Cul-de-sacs shall not be more than eight hundred (800) feet in length.
2.
Minor residential streets shall have a minimum improved surface of twenty-four (24) feet with four (4) foot shoulders, three (3) feet of which are oil and chip and one (1) foot of grass.
3.
Curb and gutter are not required. Flat bottom open drainage ditches, approved by the City Engineer or City Superintendent, shall be provided.
4.
Sidewalks are not required except in situations in which the Board believes public safety demands their installation.
5.
Street lights are not required.
B.
Restrictions. If residents of a large lot subdivider desire to install any of the above improvements, such installation shall be solely at the expense of property owners of said subdivision. The City of Foristell has no responsibility or obligation to provide such improvement or to share in such provisions. The developer shall include language to this effect in recorded restrictions as a condition of record plat approval.
[Ord. No. 508 §1, 11-4-2002]
Street lights shall be provided in all subdivisions, except as stated under Section 410.310 large lot subdivision. All street lights shall have underground wiring and meet minimum specifications of the electric utility company serving the area of the proposed subdivision. Location of street lights shall be approved by the City before installation. Street lights shall be installed prior to occupancy of structures within the subdivision.
[Ord. No. 508 §1, 11-4-2002]
Where a subdivision contains sewers, sewage treatment plants, water supply systems or other physical facilities that are necessary or desirable for the welfare of the area or that are of common use or benefit and which are not or cannot be satisfactorily maintained by an existing public agency, provision shall be made which is acceptable to the agency having jurisdiction over the location and maintenance of such facilities and for the proper and continuous operations, maintenance and supervision of such facilities.