Knik Construction - General Heavy Construction Company Specializing in Remote-Site ProjectsGeneral Heavy Construction

 

Dredging/Harbor Project

Bethel Small Boat Harbor Bank Stabilization

Location: Bethel, Alaska

Project Dates: 2014

Owner: City of Bethel

Contract Amount: $3,794,246

Status: Complete

Project Details: The project consisted of placing B underlayer rock and armor rock slope protection along 350 linear feet of the entrance channel. B Rock was also placed along two highly-erodible slope locations within the harbor. The remaining banks (500 LF) not stabilized by the B Rock were cleared and stabilized using geo-web. This stabilization utilized an 8" geo-web in combination with an underlying geofabric. The geo-web was filled and covered with 12 inches of 3" minus material. This slope sections were built at a 4:1 slope so the area could be used for small boat moorage while still protecting the harbor from erosion.

Armor Stone and B Rock meeting the Corps specification were barged in from Unalaska, Alaska for placement on the project. Quick production and mobilization of these materials allowed Knik to accelerate the schedule of the project. Placement was completed in sections so that the active harbor could remain operational at all times. Close communications and cooperation between the City of Bethel Harbor Master, DOWL HKM Engineers and Knik Construction was paramount in the success of this project and the one year early completion.