TABLE OF CONTENTS - Washoe County
TRUCKEE MEADOWS REGIONAL DRAINAGE MANUALTABLE OF CONTENTSSECTION 100 - INTRODUCTION . 100SECTION 200 - GENERAL PROVISIONS . 200201TITLE . 201202ADOPTION AUTHORITY. 201203JURISDICTION . 201204ENFORCEMENT RESPONSIBILITY . 201205VARIANCE PROCEDURES . 201206INTERPRETATION . 202207REVIEW AND APPROVAL . 202208IMPLEMENTATION . 202208.1DEVELOPMENT OF THE MANUAL . 202208.2UPDATES. 202208.3RECONCILIATION OF PRE- AND POST-MANUAL STUDIES . 203209ACRONYMS. 203SECTION 300 - DRAINAGE POLICY . 300301STATUTORY AUTHORITY . 301302BASIC PRINCIPLES . 302302.1DRAINAGE PLANNING AND REQUIRED SPACE . 302302.2MULTI-PURPOSE RESOURCE . 303302.3WATER RIGHTS . 303302.4JURISDICTIONAL COOPERATION . 303303REGIONAL AND LOCAL PLANNING. 303303.1REASONABLE USE RULE . 303303.2REGIONAL MASTER PLANNING . 304303.3LOCAL MASTER PLANNING . 304303.4DRAINAGE IMPROVEMENTS . 304303.5DRAINAGE PLANNING SUBMITTAL AND REVIEW. 305303.6FLOOD PLAIN MANAGEMENT . 305303.7STORM RUNOFF DETENTION. 306303.8STORM RUNOFF RETENTION . 307303.9WATER QUALITY AND CONSTRUCTION ACTIVITIES. 307303.10 DRAINAGE FACILITIES MAINTENANCE . 308304TECHNICAL CRITERIA . 308304.1STORM WATER MANAGEMENT TECHNOLOGY . 308304.2DESIGN STORM EVENTS . 309304.3STORM RUNOFF DETERMINATION . 310304.4STREETS . 310304.5CULVERTS AND BRIDGES . 311304.6FLOODPROOFING . 312April 30, 2009Table of Contents
TRUCKEE MEADOWS REGIONAL DRAINAGE MANUAL304.7ALLUVIAL FANS . 312305IRRIGATION FACILITIES . 312305.1DRAINAGE INTERACTION . 312305.2IRRIGATION DITCHES. 312306PRESERVATION OF NATURAL DRAINAGEWAYS. 313SECTION 400 - DRAINAGE LAW . 400401INTRODUCTION . 401402HISTORICAL EVOLUTION OF SURFACE WATER DRAINAGE LAW. 401402.1THE COMMON ENEMY DOCTRINE . 401402.2CIVIL LAW RULE . 402402.3REASONABLE USE RULE . 402403NEVADA DRAINAGE LAW . 403403.1CIVIL LAW RULE . 403403.2REASONABLE USE RULE . 404403.3SURFACE WATERS - PRIVATE DEVELOPMENT . 406404SURFACE WATERS - GOVERNMENTAL ENTITY LIABILITY . 410404.1SOVEREIGN IMMUNITY . 410404.2NRS 41.032 - DISCRETIONARY IMMUNITY . 411404.3NRS 41.033 - FAILURE TO INSPECT . 412404.4LIMITATION OF TORT DAMAGE AWARDS . 412404.5INVERSE CONDEMNATION -EMINENT DOMAIN . 413SECTION 500 - DRAINAGE PLANNING AND SUBMITTAL . 500501PURPOSE. 501502REQUIRED DRAINAGE REPORT SUBMITTALS . 501502.1GENERAL . 501502.2SUBMITTALS. 502502.3EXEMPTIONS . 502502.4DRAINAGE MASTER PLANS . 503503CONCEPTUAL DRAINAGE REPORT . 503503.1REPORT CONTENTS. 503503.2DRAINAGE PLAN . 504504TECHNICAL DRAINAGE REPORT. 505504.1REPORT CONTENTS. 505504.2DRAINAGE PLAN . 509504.3CALCULATIONS EXEMPTION . 510504.4IMPROVEMENT PLANS . 510505TECHNICAL DRAINAGE REPORT ADDENDUM . 510506IMPROVEMENT PLANS . 511507REQUIREMENTS FOR A FLOOD PLAIN STUDY. 511507.1OUTLINE FOR A FLOOD PLAIN STUDY . 512507.2FEMA DESIGNATED FLOOD PLAINS . 512SECTION 600 - RAINFALL . 600April 30, 2009Table of Contents
TRUCKEE MEADOWS REGIONAL DRAINAGE 4.2604.3604.4INTRODUCTION . 601RAINFALL . 601RAINFALL FOR CITY OF RENO AND UNINCORPORATED WASHOE COUNTY . 601RAINFALL FOR CITY OF SPARKS . 601RAINFALL DISTRIBUTION FOR SCS UNIT HYDROGRAPH METHOD. 601RAINFALL DEPTH - DURATION – FREQUENCY SOURCE . 601RAINFALL DEPTHS FOR DURATIONS FROM 5 MINUTES TO 24 HOURS . 601DEPTH-AREA REDUCTION FACTORS. 602RAINFALL DISTRIBUTION FOR RATIONAL METHOD. 602RAINFALL REGIONS FOR RATIONAL METHOD. 602TIME-INTENSITY-FREQUENCY CURVES IN REGION 1. 603TIME-INTENSITY-FREQUENCY CURVES IN REGION 2. 603TIME-INTENSITY-FREQUENCY CURVES IN REGION 3. 603SECTION 700 - STORM RUNOFF . 700701INTRODUCTION . 702701.1BASIN CHARACTERISTICS . 702702TIME OF CONCENTRATION . 702702.1URBANIZED BASINS . 703703PRECIPITATION LOSSES . 704703.1INTRODUCTION . 704703.2SCS CURVE NUMBER METHOD . 705704RATIONAL FORMULA METHOD . 706704.1METHODOLOGY. 706704.2ASSUMPTIONS . 707704.3LIMITATIONS ON METHODOLOGY . 707704.4RAINFALL INTENSITY . 707704.5RUNOFF COEFFICIENT . 707704.6APPLICATION OF THE RATIONAL FORMULA METHOD . 708704.7MAJOR STORM ANALYSIS . 708705SCS UNIT HYDROGRAPH METHOD . 708705.1METHODOLOGY. 708705.2ASSUMPTIONS . 709705.3LAG TIME. 709705.4UNIT STORM DURATION. 710705.5SUB-BASIN SIZING . 710706CHANNEL ROUTING OF HYDROGRAPHS . 711707RESERVOIR ROUTING OF HYDROGRAPHS . 711707.1MODIFIED PULS METHOD . 712708STATISTICAL ANALYSIS . 712709VOLUME OF RUNOFF AND STORAGE VOLUMES . 713709.1GENERAL . 713709.2 NORTH VALLEYS (CITY OF RENO AND WASHOE COUNTY ONLY) . 713709.3FLOOD PLAIN STORAGE WITHIN THE TRUCKEE RIVER WATERSHED . 714April 30, 2009Table of Contents
TRUCKEE MEADOWS REGIONAL DRAINAGE MANUAL710GREEN AND APMT METHOD (PLACEHOLDER FOR FUTURE SECTION) . 714711EXAMPLE APPLICATIONS . 714711.1EXAMPLE: RATIONAL FORMULA METHOD . 714711.2EXAMPLE: SCS UNIT HYDROGRAPH METHOD . 716SECTION 800 - OPEN CHANNELS . 800801INTRODUCTION . 803802OPEN CHANNEL HYDRAULICS . 803802.1UNIFORM FLOW . 803802.2UNIFORM CRITICAL FLOW ANALYSIS . 804802.3GRADUALLY VARYING FLOW . 805802.4RAPIDLY VARYING FLOW . 805802.5TRANSITIONS . 806803CHANNEL SELECTION . 806803.1CHANNEL TYPES . 806803.2CHANNEL SELECTION . 807803.3MAXIMUM PERMISSIBLE VELOCITIES. 809804NATURAL CHANNEL DESIGN . 809804.1INTRODUCTION . 809804.2NATURAL CHANNEL MORPHOLOGY AND RESPONSE . 812804.3NATURAL CHANNEL DESIGN . 821804.4NATURAL CHANNEL STABILIZATION . 831804.5FLOOD PLAIN MANAGEMENT OF NATURAL CHANNELS. 833805IMPROVED CHANNEL DESIGN . 834805.1GENERAL REQUIREMENTS . 834805.2PERMANENT UNLINED CHANNELS . 835805.3NON-REINFORCED GRASS-LINED CHANNELS . 835805.4WETLAND BOTTOM CHANNELS . 838805.5RIPRAP-LINED CHANNELS . 840805.6CONCRETE-LINED CHANNELS . 848805.7OTHER CHANNEL LININGS . 851806ADDITIONAL HYDRAULIC DESIGN STANDARDS . 855806.1SUBCRITICAL FLOW DESIGN STANDARDS . 856806.2SUPERCRITICAL FLOW DESIGN STANDARDS . 858807CHANNEL APPURTENANCES . 861807.1MAINTENANCE ACCESS ROAD . 861807.2SAFETY REQUIREMENTS . 861807.3CULVERT OUTLET PROTECTION . 862807.4GRADE CONTROL STUCTURES . 863808EXAMPLE APPLICATION . 869808.1EXAMPLE: OPEN CHANNEL DESIGN FOR DOE CREEK . 869808.2EXAMPLE: DETERMINE EQUILIBRIUM SLOPE BY THE THREE SLOPE METHOD . 871808.3EXAMPLE: DETERMINE THE EQUILIBRIUM SLOPE BY POWER RELATIONS . 872April 30, 2009Table of Contents
TRUCKEE MEADOWS REGIONAL DRAINAGE MANUALSECTION 900 - STORM SEWER SYSTEM . 900901INTRODUCTION . 902902DESIGN PARAMETERS . 902902.1ALLOWABLE STORM SEWER CAPACITY . 902902.2ALLOWABLE STORM SEWER VELOCITY . 903902.3MANNING'S ROUGHNESS COEFFICIENT . 903902.4STORM SEWER LAYOUT . 903902.5ALLOWABLE STORM INLET TYPES AND CAPACITY FACTORS . 905902.6OTHER CLOSED CONDUIT CRITERIA. 905903CONSTRUCTION STANDARDS. 905903.1STORM SEWER PIPE . 905903.2MANHOLES . 906903.3STORM SEWER INLETS. 906903.4STORM SEWER OUTLETS . 906904STORM SEWER HYDRAULICS . 906904.1HYDRAULIC ANALYSIS . 906904.2ENERGY LOSS CALCULATIONS . 907905STORM INLET HYDRAULICS . 910905.1INLETS ON CONTINUOUS GRADE. 911905.2INLETS IN A SUMP CONDITION . 912905.3INLET SPACING . 913905.4INLET CAPACITY FOR MAJOR STORM ANALYSIS. 913906STORM SEWER SYSTEM DESIGN. 914906.1INITIAL STORM SEWER SIZING . 914906.2FINAL STORM SEWER SIZING. 914907EXAMPLE APPLICATION . 915907.1INTRODUCTION . 915907.2EXAMPLE: STORM SEWER HYDRAULIC ANALYSIS . 915SECTION 1000 - STREETS . 10001001INTRODUCTION . 10011002FUNCTION OF STREETS IN THE DRAINAGE SYSTEM . 10011003DRAINAGE IMPACTS ON STREETS. 10011003.1 SHEET FLOW . 10021003.2 GUTTER FLOW. 10021003.3 TEMPORARY PONDING . 10021003.4 CROSS FLOW . 10021004DRAINAGE IMPACT ON STREET MAINTENANCE . 10031004.1 PAVEMENT DETERIORATION . 10031004.2 SEDIMENTATION AND DEBRIS . 10031005STREET CLASSIFICATION AND ALLOWABLE FLOW DEPTH . 10041006HYDRAULIC EVALUATION . 1004SECTION 1100 - CULVERTS AND BRIDGES . 1100April 30, 2009Table of Contents
TRUCKEE MEADOWS REGIONAL DRAINAGE MANUAL1101INTRODUCTION . 11021102DESIGN STANDARDS FOR CULVERTS . 11021102.1 CULVERT SIZING CRITERIA . 11021102.2 CONSTRUCTION MATERIALS . 11021102.3 VELOCITY LIMITATIONS AND INLET/OUTLET PROTECTION. 11031102.4 HEADWATER CRITERIA . 11031102.5 ALIGNMENT . 11041102.6 TEMPORARY CROSSING . 11041102.7 MULTIPLE-BARREL CULVERTS . 11041102.8 TRASH RACKS/SAFETY GRATES. 11051102.9 AIR VENTS . 11051102.10 MAINTENANCE ACCESS . 11051103CULVERT HYDRAULICS . 11051103.1 INLET CONTROL CONDITION . 11061103.2 OUTLET CONTROL CONDITION . 11061103.3 HYDRAULIC DATA . 11071103.4 STRUCTURAL DESIGN . 11071104DESIGN STANDARDS FOR BRIDGES . 11081104.1 BRIDGE SIZING CRITERIA . 11081104.2 VELOCITY LIMITATIONS . 11081105BRIDGE HYDRAULICS. 11081105.1 HYDRAULIC ANALYSIS . 11081105.2 INLET AND OUTLET CONFIGURATION . 11081106EXAMPLE APPLICATION . 11081106.1 EXAMPLE: CULVERT SIZING . 1108SECTION 1200 - ADDITIONAL HYDRAULIC STRUCTURES . 12001201INTRODUCTION . 12011202CHANNEL DROPS AND ENERGY DISSIPATION STRUCTURES. 12011202.1 CHANNEL DROP STRUCTURES. 12011202.2 ENERGY DISSIPATION STRUCTURES .
section 300 - drainage policy . section 400 - drainage law . section 500 - drainage planning and submittal . section 600 - rainfall . section 700 - storm runoff . section 800 - open channels . truckee meadows regional drainage manual . city of reno . washoe county . community . table of contents . table of contents . washoe county .
Reno, NV 89520-0027 Tel: 775.328.6100 Fax: 775.328.6133 Washoe County Development Code The Washoe County Development Code is contained within the Washoe County Code as Chapter 110. The Development Code, together with related information and applications necessary for development, are available from the Washoe County Community Services
Washoe County business license fees December 2016 page 1 Washoe County Business License . Locksmith or safe mechanic (obtain a work permit) business. Massage business. . Fees are charged by the Sheriff’s Office for both fingerprint imp
2.1. Partner with WIC marketing, the Access to Health Care Washoe County Network, and the Washoe County Tobacco Coalition to integrate oral health in WIC messages, messages produced with HCAP grant funding and Tobacco Coalition messages. 2.2. Partner with the Orvis School of Nursing, Health Access Washoe County, and High Sierra AHEC to
Cover Images: Top– De ek Wadapush “Cave Rock” Bot tom Left– Young Washoe boy with rabbit skin blanket and eagle feather headdress. Bottom Right- Piñon Pine nuts. Image to the Left: Eagle feather Borders: Black, red, yellow, and white have symbolic meaning to the Washoe. 2
County SharePoint Oversight Team (SPOT) as well as all key users of the SharePoint environment (TS, business owners, site administrators, and site content editors). 2.3 Scope This governance plan applies to all three SharePoint environments at Washoe County: Development, Quality Assurance (Q/A), and Production. 2.4 Risks / Concerns
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WHEREAS, the attached misdemeanor and felony bail schedules with explanatory tables have been approved and adopted by the Judicial Effectiveness Committee and the individual courts, IT IS HEREBY ORDERED THAT, effective February 14, 2012, at 12:00 a.m., the attached bail schedules will apply thereafter to any arrest made in Washoe County by
mathematics at an advanced level, including articulation to university degree study. The Unit will provide learners with opportunities to develop the knowledge, understanding and skills to apply a range of differential and integral calculus techniques to the solution of mathematical problems. Outcomes On successful completion of the Unit the learner will be able to: 1 Use differentiation .
