Category:773 Pipe, Box Culvert and Miscellaneous Drainage Maintenance
Contents
773.1 Maintenance Planning Guideline for Installing Pipe Liners
773.2 Maintenance Planning Guideline for Cleaning and Repair of Pipes
Code: R319 |
Definition
The time and expenses incurred from removing and replacing pipe culverts. Includes time and expenses incurred for installing a new lining in an existing culvert.
Purpose
To clean, align, and repair pipe culverts and related structures.
Scheduling
As needed, year around.
Recommended Equipment
- Trucks
- Water Tank w/Trash Pump
- Concrete Mixer
- Jack
- Loader
- Skid Steer Loader
- Chainsaws
- Tube Flusher
Traffic Control Equipment (see Traffic Control for Field Operations)
Recommended Material
- Concrete
- Plastic Joint Compound
- Form Material
- Water
- Curing Compound
Recommended Procedure
1. Call Dig Rite and MoDOT to check for utilities.
2. Place traffic control devices as needed.
3. Fill open joints with joint compound.
4. If headwall, flared end section, or pipe end section is settled, align section with jack or loader and compact material under section for support.
5. If ends of corrugated metal pipe are bent and restricted, open with jack.
6. Clean excess compound and debris from work area.
7. Remove traffic control devices.
Safety
Call before you dig to locate utilities (1-800-DIG-RITE). Watch out for "pinch points." Wear all appropriate PPE. Reference the Safety Policies, Rules & Regulations-Employee Handbook.
Other Considerations
Check if Corps of Engineers permit is needed.
773.3 Maintenance Planning Guideline for Cleaning and Repair of Box Culverts
Code: R319 |
Definition
The time and expenses incurred from removing and replacing pipe culverts. Includes time and expenses incurred for installing a new lining in an existing culvert.
Purpose
To clean, repair, and fill voids of box culverts and restore roadway drainage.
Scheduling
As needed, year around.
Recommended Equipment
- Trucks
- Loader, Backhoe, or Excavator
- Concrete Mixer
- Compressor/Breakers
- Water Tank w/Trash Pump
- Traffic Control Equipment (see Traffic Control for Field Operations)
Recommended Material
- Concrete
- Water
- Quarry Run Rock
- Form Material
- Cement
- Agricultural Lime
Recommended Procedure
1. Call Dig Rite and MoDOT to check for utilities.
2. Place traffic control devices as needed.
Clean Out
1. Remove drift and debris as needed.
Repair
1. Remove bad concrete, form, and pour concrete.
Fill Voids
1. Fill large voids and eroded outlet areas with quarry run rock and if needed grout with concrete.
2. Internal voids along the barrel sides and bottom should be mudjacked.
3. Remove traffic control devices.
Safety
Call before you dig to locate utilities (1-800-DIG-RITE). Watch out for "pinch points." Wear all appropriate PPE. Reference the Safety Policies, Rules & Regulations-Employee Handbook.
Other Considerations
Check if Corps of Engineers permit is needed.
773.4 Maintenance Planning Guideline for Replacing Pipes and Box Culverts
Code: R319 |
Definition
The time and expenses incurred from removing and replacing pipe culverts. Includes time and expenses incurred for installing a new lining in an existing culvert.
Purpose
To replace deteriorated pipe and box culverts, which have caused the roadway or entrance to settle.
Scheduling
As needed, year around.
Recommended Equipment
- Trucks
- Backhoe, Excavator, Loader, or Motorgrader
- Mechanical Compactor
- Dragline
- Crane
- Breaker
- Trenching Protective System/ Sheeting
- Traffic Control Equipment (see Traffic Control for Field Operations)
Recommended Material
- Pipe & Accessories
- Joint Compound
- Roadway Surface Material
- Precast Box Culvert
- Backfill Material
Recommended Procedure
1. Call Dig Rite and MoDOT to check for utilities.
2. Develop trenching safety plan with competent person and supervisor.
3. Place traffic control devices as needed.
4. Remove existing pipe or box.
5. Install protective system in trench, if necessary.
6. Prepare subgrade.
7. Place new pipe or box and seal joints.
8. Remove protective system.
9. Compact material in lifts around and over pipe or box.
10. Place and compact surfacing material.
11. Clean work area.
12. Remove traffic control devices.
Safety
Call before you dig to locate utilities (1-800-DIG-RITE). Hard hats are required. Watch for sharp edges and "pinch points." Wear all appropriate PPE. Refer to Risk Management On Line Manual Section 2.4 for Trenching and Shoring Procedures. Also comply with the Safety Policies, Rules & Regulations-Employee Handbook.
Other Considerations
If entire roadway is to be closed, local news media, schools, emergency services, and law enforcement agencies should be informed in advance.
References
Standard Specification Sec 725, Sec 726 and Sec 733.