default-logo

img_2653jpgweb

2014

Triple Crossing Dam Reconstruction

Project Owner: Bureau of Land Management
Project Engineer: DOWL HKM
This project consisted of repairing Triple Crossing Dam located 34 miles southwest of Glasgow, Montana.

Project included:

  • excavation and removal of the existing steel outlet pipe and gate
  • reconstruction of embankment
  • filled downstream scour hole
  • construction of concrete encased, precast reinforced concrete outlet conduit, precast concrete riser, and grouted riprap stilling basin
  • reconstructing dam embankment at new outlet works
  • placement of upstream riprap and gravel slope protection
  • installation of internal chimney and blanket drain system

 

Itcaina Dam Reconstruction

Project Owner: Bureau of Land Management
Project Engineer: DOWL HKM

This project consisted of repairing Itcaina Retention Dam, located 27 miles southwest of Glasgow, Montana.

Project included:

  • excavation and removal of existing CMP principal spillway
  • construction of concrete encased, precast reinforced concrete outlet conduit, precast concrete riser, and grouted riprap stilling basin.
  • Excavation of new auxiliary spillway
  • fill existing breach in auxiliary spillway
  • reconstructing dam embankment at new outlet works
  • placement of upstream riprap and gravel slope protection
  • installation of internal chimney and blanket drain system
  • reclamation of all disturbed areas

 

2013

Plum Creek Road Repairs

Project Owner: Fergus County, Montana
Project Engineer: Stahly Engineering & Associates Inc.

Project included:

  • cleaning and grading ditches
  • excavation of eroded roadway and shoulder
  • hauling and placing pit run
  • placing crushed top surfacing
  • installation of riprap wall, outlet protection, bedding material, and geotextile
  • location and identification of underground spring
  • placement of asphalt corrugated metal pipe
  • conducting erosion control
  • hydro-seeding

 

Mildred Ismay Cut-Across Road Repairs

Project Owner: Prairie County, Montana
Project Engineer: Great West Engineering

Project included:

  • embankment construction and excavation
  • installing rock-filled wire gabion armoring system
  • minor regarding, and installation of geotechnical slope stabilization

 

Little Missouri Special Waste Landfill

Project Owner: D&M Water Service LLC
Project Engineer: Ameritech Engineering Corporation

Project included:

  • excavation of landfill and retention pond
  • road construction
  • installation of moisture conditioned clay liner and high-density polyethylene fabric liners
  • construction of a leachate collection system
  • soil stabilization and reclamation measures

 

2012

Upper Baker Lake Sediment Removal

Project Owner: Fallon Country Montana
Project Engineer: Brosz Engineering

Project included:

  • Removal of sediment from a large portion of Upper Baker Lake
  • Repaired face scarp
  • installation of articulated concrete block systems on the dam face

 

Jim Dam

Project Owner: Bureau of Land Management
Project Engineer: DOWL HKM

Project included:

  • breaching dam embankment
  • installation of a new RCP concrete encased outlet works
  • installation of a grouted outlet basin
  • installation of rip rap slope protection
  • excavation and compaction of dam crest and face
  • excavation and grading of spillway

 

2010 and Prior

Pirate Dam

Project Owner: Private
Project Engineer: Morrison & Maierle Inc.

Project included:

  • construction of access road to dam
  • total breach of dam
  • installation of new cast in place principle outlet works
  • installation of chimney and blanket drains
  • construction of an earth buttress
  • excavation of new emergency spillway
  • rip rap slope protection
  • construction of gabion and rip rap stilling basin