Boggs Mountain Demonstration State Forest Draft ... - Cal Fire

Boggs Mountain Demonstration State Forest Draft Management Plan, June 2008
ROAD 501
Mileage begins at the junction of Road 210 and proceeds south to junction of Road 500.
Site 1: Mile 0.0 to 0.2 (1056 ft.)
Priority: High
This section of road is insloped with an outside berm. Drainage structures are mainly waterbars,
which are degraded and only partially functional. Some rilling is occuring on road surface
resulting in exposed rocks and roots. Water bars need to be maintained, especially at the .2 mile
mark.
Remedial treatments include:
1. Outslope road
2. Install rolling dips
3. Excavate outside berm and smooth over roadway
4. Armor outfalls
Site 2: Mile 0.2 to 0.3 (528 ft.)
Priority: High
This section of road was constructed on a flat hillslope with no cross-grade. Waterbars are the
drainage structures in place and are functioning properly; however, winter use has degraded the
road bed. The road surface has low rock content, so erosion potential is high. The road grade in
this section is approx. 1-2%. Road grade is nearly flat, some exposed rocks.
Remedial treatments include:
1. Crown or slope road surface
2. Install sharp-angled rolling waterbars
3. Armor waterbar outfalls with rock
4. Excavate outside berm and smooth over roadway
5. Rock surface
6. Re-route road
Site 3: 0.3 to 0.4 (528 ft.)
Priority: High
This section of road is insloped with an outside berm. There is no inboard ditch in this section.
Existing waterbars are responsible for all road surface drainage. Road grade on this section is
approx. 12%
Remedial treatments include:
1. Outslope road surface
2. Replace existing waterbars with rolling dips
3. Excavate outside berm and smooth over roadway
4. Armor drainage outlets
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