With improvements to water tables, side drains and
some culverts placed, the effects of surface water flows will be reduced
and less sediment run-off can be expected. Improvement to the access
will allow for wider public participation in the values of the goldfield
area.
b) The general mitigation processes are envisaged
to be as above except that the new section of road formation has a possible
alternative in continuing with the existing 1970's alignment to Greenwood
Creek, forming a ramp into the Parapara River bed and ford crossing
to the TRHS, new roading across the flat at GR 811489 and a further
crossing of the Parapara to access the TLHS above the dam. This alternative
is not preferred as it involves two additional river crossings and associated
breaches of the existing stable banks at four locations and the inability
to access the headworks for maintenance purposes except at times of
minimal river flow. In all cases culverts will be replaced where necessary
and new culverts established at all existing watercourses and at no
more than 100 metre intervals on all new roading.
The reconstructed roadway to Richmond Flat will facilitate
public access to the recreational and educational opportunities at Richmond
Flat which in turn provides walking access to the balance of the Parapara
River catchment for hunting, hiking and historical purposes.
2) Dam rehabilitation
This comprises three aspects:
- Repairs to the dam crest
- Closing the dam diversion / drain pipes
- Possible reinstatement of the original valving system controlling
the diversion pipes above.
|