Code of Maine Rules
01 - DEPARTMENT OF AGRICULTURE, CONSERVATION AND FORESTRY
672 - LAND USE PLANNING COMMISSION (formerly Land Use Regulation Commission)
Chapter 15 - GUIDELINES FOR PRIVATE ROADS OR WAYS IN THE LAND USE PLANNING COMMISSION'S MANAGEMENT DISTRICTS
Section 672-15-04 - Construction Techniques

1. During road construction, reasonable measures should be undertaken to control water runoff and erosion in order to avoid sedimentation of water bodies.

2. Drainage ditches should be provided whenever necessary to effectively control water entering and leaving the road area.

3. Cut and fill sections and road banks should be effectively stabilized so as to prevent erosion or slumping.

4. In order to prevent road surface drainage from directly entering water bodies, roads and their associated drainage ditches, should be located, constructed and maintained so as to leave an unscarified filter strip, of at least the width indicated in the following table, between the exposed mineral soil of the road and the normal high water mark of the surface waterbody or water course:

This guideline shall not apply to road approaches to water crossings.

5. Drainage ditches for roads approaching a water crossing should be designed, constructed, and maintained to empty into an unscarified filter strip, of at least the width indicated in the table set forth in Subsection 4 above, between the outflow point of the ditch and the normal high water mark of the waterbody. Where such filter strip is impracticable, other appropriate techniques should be used to reasonably avoid sedimentation of the waterbody. Such techniques may include the installation of sump holes or settling basins, and/or the effective use of additional ditch relief culverts and ditch water turnouts placed so as to reasonably avoid sedimentation of the waterbody.

6. Cross drainage culverts or drainage dips should be installed to get drainage water from the uphill side of the road to the downhill side before the flow in drainage ditches or roads gains sufficient volume or head to cause erosion and water sedimentation.

Drainage water on the downhill side of the road should be diverted from the road ditch into vegetated areas by installation of water turnouts spaced so as to prevent the flow in the ditch from gaining sufficient volume or head to cause erosion and water sedimentation.

Such water diversion structures should be located and constructed as follows: