§ 13.04.520. Appendix D Civil Improvement Plans.

A subsection, "Appendix D Fire Apparatus Access Roads," is deleted in its entirety, and replaced with "Appendix D Civil Improvement Plans" as follows:

APPENDIX D

D101 Civil Engineering Plans for Water Supply and Fire Department Access. Civil engineering plans shall follow the requirements of D102 through D105.

D102 Civil Engineering Plans. Plans must include the following information:

1. Vicinity map indicating major cross streets adjacent to project, as well as, actual project location.

2. Fire Department General Notes must be provided on plans. These are:

GENERAL NOTES

GENERAL :

a. All work shall be done in strict accordance with the Clark County Fire Code as amended, the Uniform Design and Construction Standards (UDACS) as adopted by Clark County and the currently adopted Edition of NFPA 24.

b. Fire hydrants and water supplies for fire protection shall be installed, inspected by Fire Prevention and in service prior to and during the time of construction in accordance with Section 3312 of the IFC, as amended. Fire hydrants shall be within 300 feet of combustible materials.

c. If during construction it becomes necessary to close any control valve or place a hydrant out of service, approval shall be obtained from the Clark County Fire Prevention prior to placing the hydrant out of service.

FIRE HYDRANTS:

a. Fire hydrants shall be installed in accordance with the most current edition of UDACS. NFPA 24 and this guideline. Fire hydrants shall be maintained in accordance with NFPA 25 and kept in an operative condition with the required water supply.

b. Manufacturer and model of fire hydrants shall conform to the approved materials list of the water purveyor.

c. Hydrants shall be installed with their pumper outlet nozzle (steamer connection) facing the fire access road. A 3-foot clear space shall be maintained around the circumference of fire hydrants. Where hydrants are subject to impact by motor vehicles, guard posts (pipe bollards) shall be installed in accordance with Section 312.

d. Public hydrants shall be painted safety yellow and private hydrants shall be painted red.

e. Fire hydrants shall be located 4 to 7 feet from back of curb.

f. Painting of curbs and/or asphalt areas adjacent to hydrants shall be completed by the installer prior to bond release inspection. A coat of exterior industrial grade safety red enamel shall be applied for a minimum of 30 feet (15 feet on each side of the hydrant).

g. Hydrant locations shall be marked by means of a blue reflective pavement marker installed in the center of the fire access drive lane nearest to the hydrant.

FIRE DEPARTMENT CONNECTIONS:

a. Fire department connections shall be located within 100 feet of a fire hydrant as measured by an approved unobstructed route. An approved route is defined as an unobstructed path of travel on which hose can easily be laid.

b. Fire department connections shall be located on the street side of buildings or facing approved fire apparatus access roads, fully visible and recognizable from the street, fire apparatus road or nearest point of fire department vehicle access or as otherwise approved by the fire code official.

c. Fire department connections shall not be closer than 3 feet to any door or window opening and shall not be obstructed by trees, shrubs, parking spaces, etc.

d. Fire Department connections shall be located not less than 18 inches and not more than 48 inches above the level of the adjacent grade or access level.

UNDERGROUND PIPING & VALVES:

a. Underground piping shall have a minimum working pressure of 150 psi (class 235). Underground piping connected to a fire pump or a fire department connection (FDC) shall have a minimum working pressure of 200 psi (class 305).

b. For private fire service mains two sources of water supply are required whenever 4 or more fire hydrants and/or fire sprinkler lead-ins are installed on a single system. Water systems under the purview of the Las Vegas Valley Water District shall conform to the Las Vegas Valley Water District rules.

c. For private fire service mains sectional control valves shall be installed so that no more than 2 fire hydrants and/or fire sprinkler in building risers (lead-ins) can be out of service due to a break in a water main. Water systems under the purview of the Las Vegas Valley Water District shall conform to the Las Vegas Valley Water District rules.

d. All piping and valves supplying fire sprinkler systems shall be protected from freezing when exposed to temperatures less than 40°F. Freeze protection shall be approved by Clark County Fire Prevention and be durable and permanent.

e. All required hydrostatic testing and flushing of the private fire service main or underground fire sprinkler/standpipe water supply piping shall be performed in the presence of Clark County Fire Prevention staff. The piping joints shall be uncovered until inspected. The installing contractor shall furnish a "contractor's material and testing certificate" (CM&T) countersigned by the property owner or representative. The CM&T shall be filled out completely with the inspector's initials, witnessing each test. A copy of the underground flush and hydrostatic testing documentation shall be on-site and signed prior to the connection of the underground water supply to the fire sprinkler system.

GATES:

a. Shop drawings for all gates and motorized openers serving fire department access roads shall be submitted separately under a separate permit for review by the Clark County Building Department and Fire Prevention and receive approval prior to their installation.

FIRE APPARATUS ACCESS ROADS:

a. Speed bumps and/or speed humps shall not be permitted within the required width of fire apparatus access roads.

Exceptions:

1. Speed humps are allowed on private fire apparatus access roads serving commercial and industrial buildings when approved by the fire code official.

2. Rumble strips are allowed on private fire apparatus access roads serving residential, commercial and industrial buildings when approved by the fire code official.

b. A maximum of six (6) single family homes (IBC Group R-3) or structures constructed in accordance with the IRC, may be situated on a 25 foot wide street (stub street) having a maximum length of 150 feet when all homes are provided with an approved automatic sprinkler system. The minimum width shall be 25 feet measured from back-of-curb to back-of-curb and on-street parking shall be prohibited on such stub streets.

c. Fire apparatus access roads shall be designed and maintained to support the imposed loads of fire apparatus, with a minimum vehicle load of 33,000 pounds per axle, and shall be surfaced and paved so as to provide all-weather driving capabilities.

d. Fire apparatus access roads including elevated portions shall be designed with a ground bearing capacity not less than 75 psi over the ground contact area.

END OF GENERAL NOTES

3. A Fire Prevention completed signature block on all utility sheets to be reviewed by Fire Prevention shall be provided as follows:

Approval of these plans shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of the state or county laws.
Fire Flow =__________ g.p.m. at 20 psi residual.

4. A completed Fire Flow Information Block shall be provided as follows:

FIRE FLOW INFORMATION
TYPE OF CONSTRUCTION
TOTAL LIVING AREA (residential sq ft)
TOTAL AREA (sq ft)
NUMBER OF STORIES
TYPE IA OR IB CONSTRUCTION: AREA OF THREE (3) LARGEST FLOORS
BUILDING HEIGHT (ft)
HIGH RISE BUILDING	___ YES ___ NO
IBC USE GROUP
SPRINKLERED	___ YES ___ NO
NUMBER OF HYDRANTS INSTALLED
FIRE FLOW ON-SITE
TOTAL FIRE FLOW	GPM AT 20 PSI

 

5. Locations of water main connections, stubs, etc.

6. Size and location of all underground fire sprinkler system laterals.

7. Location, size, and type of new and existing water mains.

8. Location, number, and type of new, relocated and existing fire hydrants.

9. Location of sectional and control valves.

10. Locations, size and type of new/existing DCDAs/RPDA and water meter assemblies.

11. Details of thrust blocks in accordance with UDACS and NFPA 24.

12. Curb lines, sidewalks, alleys, driveways, walls, fences, property lines, vehicle parking layouts (indicate whether or not parking is covered or uncovered), power poles, adjacent structures, all on-site buildings, any other items which are pertinent to hydrant placement.

13. Emergency vehicle access plan indicating fire apparatus access road on and off property, in accordance with the Fire Code. Fire apparatus access road widths must be provided, including details of all street sections.

D103 Fire Hydrant System Design/Distribution/Frequency

D103.1 When four or more hydrants are provided on a private system require, two sources of water are required. Public hydrants are supplied according to the requirements of the water purveyor.

D103.2 The spacing of fire hydrants shall place hydrants at all intersections.

D103.2 Hydrants should be on the right side of the street (from the perspective of travel into the property) and should be inside the dead-end street when those occur. If the hydrant is not within spacing requirements to a dead-end, then an additional hydrant is required to meet the spacing requirements. There are no limitations on how close a hydrant can be to the dead-end.

D103.3 In residential areas (R-3 occupancies and single family dwellings built under the International Residential Code - IRC only) hydrants shall be spaced not to exceed 500 feet apart, or 600 feet apart, if buildings are protected by approved automatic fire sprinkler systems.

D103.4 The maximum distance from a one or two-family dwelling to a fire hydrant shall not exceed 300 feet, as measured from an approved point on a street or road frontage to a fire hydrant. An approved point is defined as the property line furthest from the hydrant, at a right angle to the street.

D103.5 For all occupancies other than R-3 and single family dwellings built under the IRC, hydrants shall be spaced not to exceed 300 feet or 400 feet if buildings are protected by approved automatic fire sprinkler systems.

D103.6 In all commercial, industrial and multi-family residential (R-1 and R-2 occupancies) areas, the maximum distance from a hydrant to the end of a dead-end street shall not exceed 200 feet (C102.6).

D103.7 The minimum number of fire hydrants required to meet the fire flow shall be based on a maximum flow of 1.500 gallons per minute per hydrant. All hydrants utilized in providing the fire flow shall be within 750 feet of the structure being protected as measured along the street or approved fire apparatus access road (C105.1).

D103.8 Fire hydrants on adjacent properties shall not be considered unless fire apparatus access roads extend between properties and recorded easements are established.

D103.9 Where projects are built adjacent to street(s) provided with median dividers, or streets having four or more travel lanes and a traffic count of 30,000 vehicles per day, hydrants shall be added along such streets to achieve a maximum spacing of 1000 feet along both sides of the street, arranged on an alternating basis of 500 feet intervals.

D103.10 Where new water mains are extended along streets where hydrants are not needed for protection of structures or similar fire problems, fire hydrants shall be provided at spacing not to exceed 1.000 feet to provide water for transportation hazards.

D103.11 Hydrants shall not be placed in the circular portion of a cul-de-sac per Las Vegas Valley Water District (LVVWD) Uniform Design Standards 2.21.01.

D103.12 Sectional control valves shall be installed so that no more than 2 fire hydrants and/or 2 sprinkler lead-ins can be out of service at any one time.

D103.13 Fire hydrants shall be located 4 feet to 7 feet from the back of curb. Where it is not possible to locate the hydrant a minimum of 4 feet from the back of the curb, or where curbs are not provided, the hydrant shall be protected against vehicular impact in accordance with Section 312.

D103.14 Hydrants shall be located a minimum of 6 feet away from the beginning of a turning radius (LVVWD UDS 2.21.01).

D103.15 Any control valves in the fire sprinkler lateral must be post indicator valve (PIV) type and electrically supervised.

Exception: When prior approval is obtained from the Clark County Fire Prevention, gate valves in underground water lines may be abandoned in place. The Clark County Fire Prevention must witness abandonment of the valve.

D103.16 Hydrants shall be provided during construction as soon as combustible materials arrive on-site in accordance with Section 3312.

D103.17 If during construction it becomes necessary to close any control valve or place a hydrant out of service, approval shall be obtained from the Clark County Fire Prevention prior to placing the hydrant out of service.

D103.18 Supply lines feeding multiple fire hydrants shall have a minimum diameter of 8 inches. A supply line may be reduced to a diameter of 6 inches provided it supplies only one hydrant and has a maximum length of 150 feet.

D104 Fire Hydrant Installation Specifications

D104.1 Hydrants shall be installed according to the currently adopted requirements.

D104.2 Fire hydrant painting and marking: Public hydrants shall be painted safety yellow and private shall be painted red. Their locations shall be marked in the adjacent fire apparatus access road by a blue reflective pavement marker and the curbs shall be painted red 15 feet on each side of the hydrant. Where curbs are not provided, paint shall be applied along the roadside for 15 feet in each direction.

D104.3 All cap, hose nozzle and pumper nozzle threads shall be free of dirt, rust, etc., and shall be lightly greased.

D104.4 Protection of fire hydrants from vehicular impact: Where a hydrant is located less than 4 feet from the back of the curb, or where curbs are not provided, protective posts shall be installed.

D104.5 Hydrants shall be installed so that the breakaway flange is located no higher than 6 inches nor less than 2 inches from the 3' x 3' x 10" concrete pad which is reinforced with a minimum of #4 rebar installed throughout the pad (UDACS 40).

D104.6 Approved Fire Hydrants: Hydrants that are proposed for installation in public water systems shall be in accordance with approved fire hydrants as allowed by the water purveyor. Hydrants proposed for installation on private water systems shall also be in accordance with the hydrants approved by the water purveyor.

D105 Fire Apparatus Access Roads

D105.1 Fire apparatus roads are to comply with Section 503.

D105.2 Dead ends: Dead-end fire apparatus access roads in excess of 150 feet (45,720 mm) in length shall be provided with approved provisions for the turning around of fire apparatus. Dead-end streets up to 500 feet long, measured from curb face of the intersecting street to the curb face of the dead-end (cul-de-sac, hammerhead), shall use the approved cul-de-sac dimensions provided in the Clark County Regional Transportation Commission (RTC) standard drawings RTC 212 or RTC 212.1.S.1 as follows. Dead-end streets in excess of 500 feet must use one of the Clark County Fire Department approved fire apparatus turn around designs DFPB 1, 2, 3 or 4.

(Ord. No. 4664, § 1, 1-22-2019)