Posted by on Aug 17, 2011 in Limerock | Marine/Dam, Marine/Dam | 0 comments

Repairs to Manton Dam |Limerock Dam Lincoln, RI

Installation of erosion and sediment control devices. Construct access road and staging area. Drawdown impoundment and construct temporary cofferdam and diversion structures. Clear and grub all brush, trees and vegetation, including stumps as indicated. Demolish, remove and dispose existing site features indicated for removal. Excavate to the lines and grades indicated. More on description below.

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Town of Lincoln
$559,270
1. Installation of erosion and sediment control devices.

2. Construct access road and staging area.

3. Drawdown impoundment and construct temporary cofferdam and diversion structures.

4. Clear and grub all brush, trees and vegetation, including stumps as indicated.

5. Demolish, remove and dispose existing site features indicated for removal. Excavate to the lines and grades indicated.

6. Backfill existing stone culvert as indicated.

7. Construct new vault and low-level outlet structure to the grades indicated.

8. Reconstruct embankment and downstream slope including installation of filter material and geotextile fabric.

9. Place rock fill for downstream stability berm.

10. Loam and seed embankment, staging areas, and other areas disturbed by construction.

11. Demobilize and return disturbed areas of the site to preconstruction conditions.

12. Raise level of impoundment to historic normal pool elevation upon completion.