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Manual Notice
| Snow and Ice Control Operations Manual |
TxDOT Manual System
♦
Manual Notice 2005-1
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1.
District Snow and Ice Control Plans
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1.
Overview
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Introduction
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Road Closures
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Railroad Grade Crossing
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Purpose of this Manual
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Introduction to this Chapter
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2.
District Snow and Ice Control Plans
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Elements of a Snow and Ice Control Plan
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Objective
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Maintenance Section Plan
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Resources
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Coordination
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Operations
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3.
Example: Fort Worth District Plan
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District Objective
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Maintenance Section Plan
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Resources
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Coordination
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Operations
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4.
Example: Lubbock District Plan
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District Objective
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District Guideline
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Planning for Snow and Ice Control
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Resource Preparation
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Reporting Procedures
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Road Closures
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Coordinating Snow Removal Operations
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Safety and Training
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After the Storm
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2.
Materials
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1.
Overview
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Summary
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2.
Solid Chemical Application Capability
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Need for Moisture Before Application
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3.
Liquid Chemical (Chemical Solution) Application Capability
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When to Use Liquid Chemicals
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4.
Pre-wetted Solid Chemical Application Capability
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Benefits of Pre-Wetting Solid Chemicals
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5.
Recommendations for Use of Liquid Chemicals
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Don’t Use During Ice Storms
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Using for Snow Storms
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Pretreatment
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Early-Storm Treatment
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Preventing Black Ice
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6.
Recommendations for Use of Dry Chemicals
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Timing is Critical
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Do Not Use As Pretreatment
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7.
Chemical Types
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Sodium Chloride, NaCl
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Magnesium Chloride, MgCl2
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Calcium Magnesium Acetate (CMA)
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Potassium Acetate, KC2H3O2
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Sand
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8.
Testing
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Material Specification DMS-6400
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9.
Environmental Considerations
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Environmental Effects vs. Benefits
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Variations in Effects
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Chemicals in Highway Runoff Not a Major Source of Chloride Contamination
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3.
Equipment Maintenance
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1.
Overview
♦
Summary
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2.
Dump Trucks
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Pre-storm activities
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During the storm activities
♦
Post-storm activities
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3.
Motor-Grader
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Pre-storm activities
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During the storm activities
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Post storm activities
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4.
Loader
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Pre -storm activities
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During the storm activities
♦
Post storm activities
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5.
Snow Plow
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Pre – storm activities
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During the storm activities
♦
Post storm activities
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6.
V-Box Spreader
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Pre-storm activities
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During the storm activities
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Post storm activities
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7.
Tail Gate Spreader
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Pre-storm activities
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During the storm activities
♦
Post storm activities
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8.
Snow Wing
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Pre-storm activities
♦
During the storm activities
♦
Post storm activities
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9.
Snow Blower
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Pre-storm activities
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During the storm activities
♦
Post storm activities
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10.
Herbicide Rig
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Pre-storm activities
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During the storm activities
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Post storm activities
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11.
Pickup Applicator
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Pre-storm activities
♦
During the storm activities
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Post storm activities
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4.
Purchasing
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1.
Overview
♦
Summary
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2.
Anti/De-icing Materials
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Blanket Purchases
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Small Purchases/Emergency Purchases
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3.
Major Equipment
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Definition
♦
Funding
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Specifications
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4.
Minor Equipment
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Definition
♦
Funding
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5.
Purchase of Parts
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Distributor Purchase
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Purchasing Used Repair Parts
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6.
Lease of Equipment without Operator
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Lease vs. Purchase
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Alternative fuel waiver
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7.
Lease of Equipment with Operator
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When to Use
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8.
Lease Purchase Contracts
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Use When Cost Effective
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5.
Bridge Maintenance Needs
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1.
Overview
♦
Summary
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2.
Bridge Decks
♦
Risks of Chemical Damage
♦
Washing the Deck
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3.
Bridge Joints
♦
Risks of Chemical Damage
♦
Bridge Joint Inspection and Cleaning
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4.
Bridge Beams
♦
Risks of Chemical Damage
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Repair of Joint Systems
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5.
Bridge Caps
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Risks of Chemical Damage
♦
Maintain Joint Systems
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6.
Bridge Columns
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Risks of Chemical Damage
♦
Don’t Store Chemicals by Columns
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6.
Personnel
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1.
Responsibilities of Maintenance Supervisors
♦
Coordination
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2.
Outsourcing
♦
Funding
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3.
Personnel Scheduling
♦
Tracking Employees
♦
Training
♦
Scheduling Employees with Commercial Driver Licenses
♦
Equipment
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7.
Reporting
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1.
Overview
♦
Why Reports are Important
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2.
Federal Reporting
♦
Tracking Storm Damage Costs
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3.
State Reporting
♦
Highway Condition Reporting System
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4.
District Reporting
♦
Reports from Each Maintenance Section
♦
What to Include
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5.
Local Reporting
♦
What to Track
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8.
Weather Forecasting
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1.
Overview
♦
Importance of Accurate Forecasts
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2.
Advisories and Warnings
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Definitions
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3.
Weather Information
♦
NWS Products and Services
♦
Internet Web Sites
♦
Private Forecasting Services
♦
Roadway Weather Information System
►
4.
Thermal Mapping
♦
Uses for Thermal Mapping
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9.
Alternate Methods
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1.
Overview
♦
Proactive Approaches
►
2.
Snow Fences
♦
Preventing Snow from Drifting onto Highways
♦
Where Effective
♦
Varieties and Forms
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3.
Thermal Mapping
♦
Predicting freeze zones
♦
Uses for Thermal Mapping
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4.
Heated Bridge Decks
♦
Still in Research Mode
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5.
De-Icing & Anti-Icing Systems
♦
Definitions
♦
Anti-icing
♦
Benefits
♦
Use with RWIS
♦
Types of Application Systems
♦
Mobile Application Systems
♦
Fixed Application Systems
♦
De-icing
Snow and Ice Control Operations Manual
September 2005
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