Back Brook Dam Removal

Work Log, August 12-16, 2002

WEEKLY INSPECTOR'S REPORT

MONDAY, AUGUST 12, 2002:
Excavation of sedimentary pond and removal of concrete ongoing. A silt fence was installed this afternoon to protect against run-off into the brook. Length of this section of silt fence was 40 meters.

TUESDAY, AUGUST 13, 2002:
Continued work on removal of old dam. Concrete difficult to break up. Also, started to re-shape access road to a more suitable slope for trucks to haul earth out of the site. Access road re-leveling expected to be done by Thursday.

WEDNESDAY, AUGUST 14, 2002:
Access road rebuilding ongoing. First day of trucks hauling from the site. Loads are estimated at 10 cubic meters per load. Thirty-six (36) loads hauled out today.
Fish rescue was done this morning as diversion #1 was set up in the brook. A total of approximately 170 fish were moved. Diversion #1 in place.

THURSDAY, AUGUST 15,2002:
Access road finished today. Fish rescue found another 42 fish had worked their way back into the brook and were relocated. Sixty-nine loads of earth were hauled out from the site. Also, thirteen loads of sandstone were hauled into the site to provide a stable base for equipment to work from.


FRIDAY, AUGUST 16, 2002:
Dam removal completed this morning. Twenty-six more loads of earth removed from site. There were ten loads of shale brought inyo the site. Diversion #2 was started using all 4 excavators to try to set up and protect against run-off from expected rains on the weekend. Rip rap (8 loads) totaling 126.400 tonnes was brought in to help with diversion #2 work.

EXPECTED SCHEDULE:
Diversion #2 should be finished by Tuesday and the excavation of silt should start this week and continue through to the end of next week. 4000 cubic meters is expected to be removed under the contract. [...] The access road may need to be shaled to prevent softening in heavy rains. [...]

 

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