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X. Illustrated Examples

A Defined Drainage SystemsB Poorly Defined Drainage SystemsC Collecting Runoff Adjacent to

Roadways and Conveying Cross-Drainage Efficiently

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X. Illustrated Examples

A Defined Drainage Systems Rim Rock Ride in Village of Oak Creek

Bell Canyon Wash

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsa) Field Reconnaissance

existing 3 barrel 72-inch CMPs

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditions [CONTINUED]a) Field Reconnaissance

existing 3 barrel 72-inch CMPsn-values

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A Defined Drainage Systems: Rim Rock Ride

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsa) Field Reconnaissance

existing 3 barrel 72-inch CMPsn-values

b) Surveyaerial field

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsc) Hydrologic Data

Watershed Delineation

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsc) Hydrologic Data

HEC-1 Methodology Split Flow Analysis Model Verification

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsc) Hydrologic Data

HEC-1 Methodology

Green and Ampt Clark Unit Hydrograph Modified Puls Routing

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsc) Hydrologic Data

HEC-1 Split Flow Analysis

Uneven Weir Program

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsc) Hydrologic Data

HEC-1 Hydrologic Model Verification

Regional Data UGGS Data USGS Regional Regression Equations Previous Studies

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A Defined Drainage Systems: Rim Rock Ride

1. Existing Conditionsd) Floodplain Delineation

HEC-RASFloodway

e) Culvert HydraulicsHY-8Uneven Weir Program

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[HANDOUT Floodplain Delineation Map]

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A Defined Drainage Systems: Rim Rock Ride

2. Alternative Analysisa) Replace existing culvert with new

boxculvert

b) Replace existing culvert with slab bridge

c) Lower roadway profile

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A Defined Drainage Systems: Rim Rock Ride

2. Alternative Analysisd) Utilities

e) Cost Estimates

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A Defined Drainage Systems: Rim Rock Ride

3. Selected Alternative

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[HANDOUT Selected Alternative Plan Sheet]

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A Defined Drainage Systems: Rim Rock Ride

B Poorly Defined Drainage Systems Moson Road

Cochise County

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B Poorly Defined Drainage Systems: Moson Road

1. Existing Conditionsa) Hydrology

Regression Equations Drainage Area = 4.14 mi2

FEMA Zone A

Study Area 8

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B Poorly Defined Drainage Systems: Moson Road

1. Existing Conditionsb) Floodplain

FEMA

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B Poorly Defined Drainage Systems: Moson Road

2. Concept Drainage Improvementsa) Hydraulics

storm frequency erosion protection

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[HANDOUT Concept Drainage Improvements Plan Sheet]

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B Poorly Defined Drainage Systems: Moson Road

2. Concept Drainage Improvementsa) Hydraulics

storm frequency erosion protection

b) LOMR

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X. Illustrated Examples

C Collecting Runoff Adjacent to Roadways and Conveying Cross-Drainage Efficiently Highway 260 – Wagon Wheel Wash

Navajo County

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C Runoff And Cross-Drainage: Wagon Wheel

1. Existing Conditionsa) Reconnaissance

existing flow paths vs. existing flow paths

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C Runoff And Cross-Drainage: Wagon Wheel

1. Existing Conditionsb) Hydrology

HEC-1

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C Runoff And Cross-Drainage: Wagon Wheel

1. Existing Conditionsc) Floodplain

HEC-2 Split Flow Analysis

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C Runoff And Cross-Drainage: Wagon Wheel

2. Designa) Storm Frequency

cost estimates

b) Business Access

c) Upstream Detention

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[HANDOUT Alternative Plan Sheet]

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