Section 4: Roadside Drainage
General Roadside Drainage Guidelines
Roadside drainage appurtenances should be preserved as near
as practical to the originally constructed or subsequently modified
conditions to assure normal runoff is collected and removed from
the roadway and/or right of way. Such appurtenances include:
- ditches
- gutters
- side drains
- outlets
- irrigation ditches.
Maintenance and Repair
Drainage appurtenances can be clogged by the following obstructions:
- silting
- erosion
- earth slides
- excessive brush and vegetation.
Obstructions should be removed as soon as practical when they
create conditions that could restrict flow.
Erosion Control
TxDOT's maintenance activities occasionally require erosion
control measures. The primary tool to reduce erosion is the timely
revegetation of disturbed areas. For additional information, see
the reference manual for revegetation activities,
.