Salmon Lake Highway Reconstruction Updates

July 29 - August 4

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, July 29, through Saturday, August 3, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Chip seal work August 1-5, followed by temporary striping. Permanent striping will likely occur in early September.
• Guardrail installation and sealing of block walls finished week of July 29.
• Soil nail wall installation at Woodworth will occur early September.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Chip seal work upcoming

July 22-28

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, July 22, through Saturday, July 27, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are continuing paving driveways, pullouts, and Woodworth Road. Montana Highway 83 (MT 83) will be swept in preparation of chip seal, which likely will begin August 1.
• Crews are continuing working on guardrails, block walls, and ditches.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • After working hours, travel will be opened to one lane in each direction

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Paving MT 83

July 15-21

• The Montana Department of Transportation (MDT) and its partner Kiewit are working 24-hours Monday, July 15, through Saturday, July 20, weather and other factors permitting.
• Crews are finalizing roadway base work and will begin paving on Montana Highway 83 (MT 83) and Woodworth Road. Chip seal likely will begin the last week of July.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • Pilot cars in use during night work.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Night work starting this week.

July 1-14, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, July 1, through Saturday, July 13, from 7 a.m. to 7 p.m., weather and other factors permitting. Crews will pause construction activities at 3 p.m. on Wednesday, July 3 and resume on Monday, July 8. Happy Fourth of July!
• Crews are continuing roadway base work, guardrail and sign installation, and will begin paving on Montana Highway 83 (MT 83) and Woodworth Road.
• NOTE: Magnesium chloride will be placed on the roadway surface July 1 or 2, weather permitting. Drive slowly.
  • Magnesium chloride reduces dust, makes unpaved surfaces harder and more compact, and helps to prevent roadways from becoming uneven and developing potholes. Magnesium chloride is produced from naturally occurring minerals and has been successfully used on many construction projects in Montana.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway base work.

June 17-23, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, June 17, through Saturday, June 22, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are continuing roadway base work on Montana Highway 83 (MT 83) and Woodworth Road.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway base work.

June 3-9, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, June 3, through Saturday, June 8, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are continuing base roadway work on MT 83 and Woodworth Road.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays should be expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway excavation.

May 20-27, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, May 20, through Friday, May 24, from 7 a.m. to 7 p.m., weather and other factors permitting. Work will pause for the Memorial Day weekend starting Saturday, May 25, through Monday, May 27 to accommodate increased holiday traffic and to give workers time to spend with their families. Crews will return on Tuesday, May 28.
• NOTE: Magnesium chloride will be placed on the roadway surface Thursday, May 23, weather permitting. Drive slowly.
  • Magnesium chloride reduces dust, makes unpaved surfaces harder and more compact, and helps to prevent roadways from becoming uneven and developing potholes. Magnesium chloride is produced from naturally occurring minerals and has been successfully used on many construction projects in Montana.
• Crews are continuing roadway subgrade and ditch work.
• The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway excavation.

May 13-19, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, May 13, through Saturday, May 18, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are installing hillside retaining walls, continuing roadway excavation, and reconstructing Woodworth Road.
  • The last of 10,000 lakeside wall blocks have been installed!
• NOTE: The posted speed limit is 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway excavation.

April 29 - May 5, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, April 29, through Saturday, May 4, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are installing lakeside and hillside retaining walls and continue excavating the roadway.
• NOTE: The posted speed limit is now 25 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Concrete lined ditch.

April 22-28, 2024

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, April 22, through Saturday, April 27, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews continue to install lakeside retaining wall blocks, drainage pipes, and excavate the roadway.
• NOTE: The posted speed limit is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Lakeside retaining wall.

April 15-21, 2024

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, April 15, through Saturday, April 20, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are installing lakeside retaining wall blocks and drainage pipes, and continuing roadway excavation.
• NOTE: The posted speed limit is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway excavation continues.

April 8-14, 2024

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, April 8, through Saturday, April 13, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are installing lakeside retaining wall blocks and continue roadway excavation.
• NOTE: The posted speed limit is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadway excavation continues.

March 18-25, 2024

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, March 18, through Friday, March 22, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Crews are locating utility lines and placing erosion control barriers along the lakeside.
• About one mile of road milling begins Wednesday, March 20. Expect minor delays.
• NOTE: The posted speed limit is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, traffic will be reduced to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane in each direction.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Kiewit construction truck.

November 20-22, 2023

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, November 20, through Wednesday, November 22, from 7 a.m. to 5 p.m., weather and other factors permitting.
• Work continues with miscellaneous cleanup activities through Wednesday, November 22, before pausing for the winter shutdown. Please watch for workers and equipment when traveling through the project area.
• Crews will return in 2024 to continue work on the MT 83 Salmon Lake Reconstruction project.

Width Restrictions:

• No width restrictions are in place.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

The newly constructed MT 83.

November 13-18, 2023

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, November 13, through Saturday, November 18, from 7 a.m. to 7 p.m., weather and other factors permitting.
• Ongoing work includes installing riprap and lighting, seeding, and miscellaneous cleanup activities along Montana Highway 83 (MT 83).
• Construction will continue for about two weeks before pausing for the winter shutdown. Crews will return in 2024 to continue work on the MT 83 Salmon Lake Reconstruction project.
• The posted speed limit through the project area is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During the day, some sections of the project require reducing travel lanes to single-lane, two-way traffic. Temporary traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane each direction.

Width Restrictions:

• No width restrictions are in place.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

New guardrail and recently paved pullout along Salmon Lake on MT 83.

November 6-11, 2023

Activities:

• The Montana Department of Transportation (MDT) and its partner Kiewit are working Monday, November 6, through Saturday, November 11, from 7 a.m. to 7 p.m., weather and other factors permitting.
• NOTE: The posted speed limit is 35 mph.. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • During daytime hours, some sections of the project require reducing travel lanes to single-lane, two-way traffic. Temporary traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane each direction.
• Ongoing work includes guardrail, barrier, riprap installation, seeding, and cleanup activities. Construction will continue for another 2 or 3 weeks before pausing for the winter shutdown. Crews will return in 2024.

Width Restrictions:

• No width restrictions are in place.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Digging a ditch for the soil nail wall at Woodworth.

October 30 - November 4, 2023

Activities:

• Kiewit crews are working Monday, October 30, through Saturday, November 4, from 7 a.m. to 7 p.m.
• NOTE: The posted speed limit is 35 mph.. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • Daytime hours, some sections of the project require reducing travel lanes to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane each direction.
• Ongoing work includes building roadside ditches and Woodworth Road drainage, rockfall mitigation, guardrail installation, and seeding. Project work will continue for about two weeks, weather permitting, and crews will return in 2024 to continue construction work.

Width Restrictions:

• No width restrictions are in place.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Roadside barrier placement.

October 23-28, 2023

Activities:

• Kiewit crews are working Monday, October 23, through Saturday, October 28, from 7 a.m. to 7 p.m.
• NOTE: The posted speed limit is 35 mph. No passing. Help keep construction workers and other drivers safe by following all posted signage.
  • Daytime hours, some sections of the project require reducing travel lanes to single-lane, two-way traffic. Traffic lights are in use and delays are expected.
  • After working hours, travel will be opened to one lane each direction.
• Paving of the Montana Highway 83 (MT 83) mainline at Salmon Lake has been completed.
• Crews will finish installing soil nail walls and riprap on the east side of the roadway this week, weather permitting. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
• Ongoing work includes roadside seeding, rockfall mitigation, guardrail and barrier installation, temporary striping, and project cleanup. Project work will continue for about three weeks, weather permitting, and crews will return in 2024 to continue construction work.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Concrete surface layer is sprayed on top of the mesh to finish the soil nail wall.

October 16-21, 2023

Activities:

• Kiewit crews are working Monday, October 16, through Saturday, October 21, from 7 a.m. to 7 p.m. Night shifts will be worked, as needed, including late evenings and early mornings.
• NOTE: The posted speed limit is 35 mph, unless following a pilot car. Reduced speeds are in place throughout the construction zone. No passing. Help keep construction workers and each other safe by obeying the posted signs.
• Paving the Montana Highway 83 (MT 83) mainline at Salmon Lake is expected to be complete by Saturday, October 14, weather permitting.
  • While paving, some sections of the project require reducing travel lanes to single-lane, two-way traffic. Pilot cars and traffic lights are in use and delays are expected.
  • After paving is finished, MT 83 at Salmon Lake will be shifted to one lane each direction.
• Guardrail installation, temporary striping, and project cleanup is ongoing.
• Crews installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

View from Salmon Lake of MT 83 riprap, block retaining wall, and barrier rail.

October 9-14, 2023

Activities:

• Kiewit crews are working Monday, October 9, through Saturday, October 14, from 7 a.m. to 7 p.m. Night shifts will be worked, as needed, including late evenings and early mornings.
• Crews installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
• Paving Montana Highway 83 (MT 83) at Salmon Lake is expected to be complete Friday, October 20, weather permitting.
  • While paving, some sections of the project will require reducing travel lanes to single-lane, two-way traffic. Pilot cars will be in use and delays are expected during paving.
• NOTE: Magnesium chloride will be placed on the roadway surface as needed for paving. Drive slowly.
  • Magnesium chloride reduces dust, makes unpaved surfaces harder and more compact, and helps to prevent roadways from becoming uneven and developing potholes. Magnesium chloride is produced from naturally occurring minerals and has been successfully used on many construction projects in Montana.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Paving MT 83 around Salmon Lake.

October 2-7, 2023

Activities:

• Kiewit crews are working Monday, October 2, through Saturday, October 7, from 7 a.m. to 7 p.m. Workdays may be extended to 11 p.m., as needed.
• Paving Montana Highway 83 (MT 83) at Salmon Lake began Wednesday, September 27, and is expected to take two weeks to complete, weather permitting. The mountain side of the roadway will be paved first, south to north.
  • While paving, some sections of the project will require reducing travel lanes to single-lane, two-way traffic. Pilot cars will be in use and delays are expected during paving.
• NOTE: Magnesium chloride will be placed on the roadway surface as needed for paving. Drive slowly.
  • Magnesium chloride reduces dust, makes unpaved surfaces harder and more compact, and helps to prevent roadways from becoming uneven and developing potholes. Magnesium chloride is produced from naturally occurring minerals and has been successfully used on many construction projects in Montana.
• Crews are:
  • Rebuilding driveways and working with homeowners.
  • Installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
• The construction schedule has been updated to include 2024, see Salmon Lake Highway Reconstruction page.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Crews installing the soil nail wall at Woodworth Road.

September 23 and 25-30, 2023

Activities:

• NOTE: Saturday, September 23, magnesium chloride will be placed on the roadway surface from Legendary Lodge north to the state park, weather permitting. Drive slowly.
  • Magnesium chloride reduces dust, makes unpaved surfaces harder and more compact, and helps to prevent roadways from becoming uneven and developing potholes. Magnesium chloride is produced from naturally occurring minerals and has been successfully used on many construction projects in Montana.
• Kiewit crews are working Monday, September 25, through Saturday, September 30, 7 a.m. to 7 p.m.
• Paving Montana Highway 83 (MT 83) at Salmon Lake begins Monday, September 25, weather permitting, and is expected to take two weeks to complete.
• While paving, some sections of the project will require reducing travel lanes to single-lane, two-way traffic, which requires temporary signals and possibly flaggers. Delays are expected during these times.
• Crews are:
  • Rebuilding driveways and working with homeowners.
  • Installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
  • Installing lakeside retaining wall blocks.
• The construction schedule has been updated to include 2024, see Salmon Lake Highway Reconstruction page.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Crews installing new guardrail.

September 18-23, 2023

Activities:

• Kiewit crews are working Monday, September 18, through Saturday, September 23, 7 a.m. to 7 p.m.
• Montana Highway 83 (MT 83) at Salmon Lake is now back to one lane in each direction.
  • Temporary yellow flashing traffic lights and reduced speeds are in place throughout the construction zone. No passing.
  • Note: Paving begins Monday, September 25. Please expect delays.
• Crews are:
  • Working with homeowners as driveways are rebuilt.
  • Installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
  • Installing lakeside retaining wall blocks.
• The construction schedule has been updated to include 2024, see Salmon Lake Highway Reconstruction page.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Crews installing a culvert on MT 83.

September 11, 2023

Activities:

• Kiewit crews are working Monday, September 11, through Saturday, September 16, 7 a.m. to 7 p.m.
• Montana Highway 83 (MT 83) at Salmon Lake is now one lane in each direction.
  • Temporary yellow flashing traffic lights and reduced speeds are in use throughout the construction zone. No passing.
• Crews are:
  • Working with homeowners as driveways are rebuilt.
  • Installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
  • Installing lakeside retaining wall blocks.
• The construction schedule has been updated to include 2024, see Salmon Lake Highway Reconstruction page.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Installing riprap along Salmon Lake.

September 4, 2023

Activities:

• Kiewit crews are on break for the Labor Day holiday, Monday, September 4, but will continue working Tuesday, September 5, through Saturday, September 9, 7 a.m. to 7 p.m.
  • Water trucks and blades will be on site during the holiday weekend.
• Good news! Starting Friday, September 1, Montana Highway 83 (MT 83) at Salmon Lake will be back to one lane each direction.
  • Temporary yellow flashing traffic lights and reduced speeds are in use throughout the construction zone. No passing.
• Crews are:
  • Working with homeowners as driveways are rebuilt.
  • Installing soil nail walls and riprap on the east side of the roadway for slope stabilization. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
  • Installing lakeside retaining wall blocks.
  • Milling and installing pipe beginning at Woodworth Road and extending north on MT 83 for approximately half a mile.
• The construction schedule has been updated, see it on the Salmon Lake Highway Reconstruction page.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Hanging mesh for the rockfall attenuator that guides falling rock down the slope.

August 28, 2023

Activities:

• Kiewit crews are working 24-hours Monday, August 28, through Thursday, August 31. Construction will be paused Friday, September 1, starting at 3:00 p.m., through Monday, September 4, for the holiday break.
  • Water trucks and blades will be on site during the holiday weekend.
• The construction schedule has been updated, see it on the Salmon Lake Highway Reconstruction page.
• Day shift crews are:
  • Working with homeowners as driveways are rebuilt.
  • Installing soil nail walls on the east side of the roadway. Soil nail walls are made of steel and drilled into the slope to reinforce stabilization. A steel mesh is then laid on the surface of the slope and a concrete surface layer is sprayed on top of the mesh to finish the wall.
  • Installing lakeside retaining wall blocks.
  • Milling and installing pipe beginning at Woodworth Road and extending north on Montana Highway 83 (MT 83) for approximately half a mile.
• Night shift crews continue backfilling lakeside retaining walls.
• Temporary traffic lights are in use throughout the construction zone.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Trucks delivering gravel that will be used to prepare the roadway base for paving.

August 21, 2023

Activities:

• Kiewit crews are working 24-hours Monday, August 21, through Thursday, August 24, and 7 a.m. to 7 p.m. Friday, August 25, and Saturday, August 26.
• Day shift crews are continuing:
  • Installation of lakeside retaining wall blocks.
  • Installation of a rock fence at the north end of the lake. The rock fence will be used to redirect and guide rockfall on the east side of the roadway.
  • Pipe installation and roadway excavation at Woodworth Road extending north for approximately half a mile, ending just south of Paws Up boathouse/Sourdough Island.
• Night shift crews continue backfilling the retaining walls.
• Temporary traffic lights are in use throughout the construction zone.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Installing a main line water pipe.

August 14, 2023

Activities:

• Kiewit crews are working 24-hours Monday, August 14, through Thursday, August 17, and 7 a.m. to 7 p.m. Friday, August 18, and Saturday, August 19.
• Day shift crews are constructing the following:
  • Installation of lakeside retaining wall blocks continues.
  • Installation of a rock fence at the north end of the lake continues. The rock fence will be used to redirect and guide rockfall on the east side of the roadway.
  • Pavement milling begins at Woodworth Road and extends north for approximately half a mile, ending just south of Paws Up boathouse/Sour Dough Island.
  • Installation of soil nail walls on the east side of the roadway begins. Soil nail walls are an in-place soil reinforcement technique. The slope is reinforced by soil nails made of steel bars or other material such as a self-drilling anchor system. A steel mesh is laid on the surface of the slope and then a concrete surface layer is sprayed to finish the wall.
• Night shift crews continue backfilling the retaining walls and excavating the roadway.
• Temporary traffic lights are in use throughout the construction zone, and intermittently at the north end of the lake.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Building approaches in anticipation of paving.

August 7, 2023

Activities:

• Kiewit crews are working 24-hours Monday, August 7, through Thursday, August 10, and 7 a.m. to 7 p.m. Friday, August 11, and Saturday, August 12.
• On Sunday, July 30, the Starlink connection that is used for communications and controlling the traffic lights went offline. It took about an hour to repair and a bit longer to get traffic moved through the queue. A Starlink national expert will be onsite Monday, August 7, to improve the system. We understand your concerns and apologize for the inconvenience.
• Construction continues including:
  • Day shift crews are installing lakeside retaining wall blocks and a rock fence at the north end of the lake. The rock fence will be used to redirect and guide rockfall on the east side of the roadway.
  • Night shift crews are backfilling the retaining walls and excavating the roadway.
• Temporary traffic lights are in use throughout the construction zone, and intermittently at the north end of the lake.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Block installation and backfill work on a lakeside retaining wall.

July 31, 2023

Activities:

• Kiewit crews are working 24-hours Monday July 31 through Thursday August 3 and 7 a.m. to 7 p.m. Friday August 4 and Saturday August 5.
• Construction continues primarily near the south end of the lake, including:
  • Day shift crews installing lakeside retaining wall blocks.
  • Night shift crews backfilling the retaining walls and excavating the roadway.
• Temporary traffic lights are in use. Wait times vary based on traffic volume, which typically increases Thursday afternoon and lasts through the weekend. Morning traffic is generally lighter compared to afternoons or evenings.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Excavation work on the lakeside retaining walls.

July 27-28, 2023

Activities:

• At the north end of the lake, crews are installing a rock fence to redirect and guide rock fall. Expect traffic control and delays. Temporary traffic lights will be in use.

Width Restrictions:

• Width restrictions are in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Drilling to install the rock fence that redirects and guides rock fall.

July 24, 2023

Activities:

• Kiewit crews are working Monday July 23 through Saturday July 29, with night work tentative Friday July 28.
• During the day, crews are installing lakeside retaining wall blocks.
• Night work includes backfilling the retaining walls and excavating the roadway.
• At the north end of the lake, crews are installing a rock fence to redirect and guide rock fall. Traffic will not be impacted.
• Temporary traffic lights are in use. Wait times vary based on traffic volume, which typically increases Thursday afternoon and lasts through the weekend. Morning traffic is generally lighter compared to afternoons or evenings.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Drilling to install the rock fence that redirects and guides rock fall.

July 17, 2023

Activities:

• Kiewit crews are working Monday through Saturday, 24-hours a day.
• Day shift crews are primarily installing lakeside retaining wall blocks in about 1.5 miles of the southern construction corridor. This shorter corridor is decreasing traffic wait times.
• Night shift crews are backfilling about 2.5 miles of the project’s south end. Backfilling includes operating heavy equipment and trucks. Completing this work at night helps decrease traffic impacts during the day.
• Minor construction is occurring on the north end of the lake, but it does not affect traffic.
• Temporary traffic lights are in use. Wait times may vary based on traffic volume.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Installing riprap along Salmon Lake.

July 10, 2023

Activities:

• Kiewit crews are working Monday through Saturday, 24-hour days beginning 7/10.
• Construction continues primarily near the south end of the lake. Temporary traffic lights and pilot car in use.
• Expect extended delays. Wait times may vary based on traffic volume and construction activities.
• Note: The construction team is continuing to make changes in response to stakeholder feedback.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Moving the barrier to continue roadway work.

July 3, 2023

Activities:

• Kiewit crews are working Monday through Saturday, 7 a.m. to 7 p.m. Construction will be paused July 1 through July 4 for the holiday break.
  • A grader will be on standby, and a water truck will be working over the holiday weekend to maintain the roadway.
• Crews will be working 24-hour days, six days a week beginning 7/10. More information to come.
• The traffic light system has been upgraded to include an operator that monitors traffic cameras and can adjust the timing of the traffic signal.
• Construction continues primarily near the south end of the lake. Temporary traffic lights and pilot car in use.
• Expect extended delays. Wait times may vary based on traffic volume and construction activities.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Happy Fourth of July!

June 26, 2023

Activities:

• Kiewit crews are working Monday through Friday, 7 a.m. to 7 p.m. Expect Saturday work June 24.
• Work will be paused July 1 through July 4 for holiday break.
• Crews will be working 24-hour days, six days a week beginning after the holiday. More information to come.
• Construction continues primarily near the south end of the lake, including:
  • Block installation and backfill on the lakeside retaining walls.
  • Widening and straightening the road.
• Temporary traffic lights and pilot car in use.
• Expect extended delays. Wait times may vary based on traffic volume and construction activities.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Placing riprap for erosion control.

June 19, 2023

Activities:

• Kiewit crews are working Monday through Friday, 7 a.m. to 7 p.m. Expect Saturday work June 17 and June 24.
• Work will be paused July 1 through July 4.
• Construction continues on about two miles of roadway near the south end of the lake, including:
  • Block installation and backfill on the lakeside retaining walls.
  • Widening and straightening the road.
• Temporary traffic lights used at night. Expect extended delays. Wait times may vary based on traffic volume and construction activities.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Removing the guardrail to widen and straighten the road.

June 12, 2023

Activities:

• Crews are working Monday through Friday, 7 a.m. to 7 p.m. Expect Saturday work June 10 and June 17.
• Construction continues on about two miles of roadway located at the south end of the lake, including:
  • Block installation and backfill on the lakeside retaining walls.
• Expect delays up to 30 minutes, delays may be longer when weekend traffic volume increases.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Block installation and backfill work on the lakeside retaining walls.

June 5, 2023

Activities:

• Crews are working Monday through Friday, 7 a.m. to 7 p.m. Expect Saturday work June 3 and June 10
• Construction continues on about two miles of roadway located at the south end of the lake, including:
  • Block installation and backfill on the lakeside retaining walls.
  • Roadway leveling around the state park.
• Expect delays of 20-25 minutes. Delays may be longer when summer traffic volume increases.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Blocks being placed for the lakeside retaining walls.

May 29, 2023

Activities:

• Crews are working Monday through Friday, 7 a.m. to 7 p.m. No work over Memorial Day weekend starting noon May 26 through May 29. Happy Memorial Day!
• Construction continues on about two miles of roadway located at the south end of the lake, including:
  • Block installation on the lakeside retaining walls.
  • Asphalt removal and cleanup near Woodworth Road; expect minimal delays.
  • Excavation and pipe installation near the state park.
• Expect delays of 20-25 minutes.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Blocks for the lakeside retaining walls.

May 22, 2023

Activities:

• Crews are working Monday through Friday, 7 a.m. to 7 p.m. Expect Saturday work 5/20. No work over Memorial Day weekend starting noon May 26 through May 29.
• Expect delays of 20-25 minutes. Please note: Trips may occasionally take longer depending on traffic and construction activities. Vehicles not keeping pace with the pilot car also can extend the cycle time.
• Construction continues to about two miles of roadway located at the south end of the lake, including:
  • Work on the lakeside retaining walls, which will widen the roadway. Block wall installation is expected to continue over the next several weeks.
  • Asphalt removal and cleanup to Woodworth Road; expect minimal delays.
  • Grading and excavation near the state park.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Work on a lakeside retaining wall.

May 15, 2023

Activities:

• Expect delays of around 20 minutes. Please note: Trips may occasionally take longer depending on traffic and type of construction. Vehicles not keeping pace with the pilot car also can extend the cycle time.
• Work hours: Monday-Friday, 7 a.m.-7 p.m. Expect Saturday work 5/13 and 5/20.
• Do not park on MT 83 right-of-way in construction zones.
• Construction continues to about two miles of roadway located at the south end of the lake, including:
  • Work on the lakeside retaining walls, which will widen the roadway. Block wall installation is expected to continue over the next several weeks.
  • Milling, or asphalt removal, up to Woodworth Road; expect minimal delays.
  • Expect grading and excavation near the state park.

Width Restrictions:

• Width restrictions in place for loads over 11 feet.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Vegetation removal on mountain side of roadway.

May 8, 2023

Activities:

• Do not park on MT 83 right-of-way in construction zones.
• Construction continues to about two miles of roadway located at the south end of the lake, including:
  • Work to the lakeside retaining walls, which will widen the roadway. Block wall installation has been delayed for the first three walls, primarily due to the lake’s high-water level.
  • Work begins on Woodworth Road; delays should be minimal.
  • Pilot cars, flaggers, and traffic signals may be in use. Expect delays of around 15 minutes.
• Be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. weekdays. Update: Saturday work on 5/6.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Construction continues to the lakeside retaining walls.

May 1, 2023

Activities:

• Construction work on about two miles of roadway located at the south end of the lake, include:
  • Work on the lakeside retaining walls continues, which will widen the roadway. Blocks for the first retaining wall will be delivered and installed later this week.
  • Pilot cars and traffic signals in use. Expect delays of around 15 minutes. As summer traffic increases so will delays.
• Give workers a break, be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. weekdays, plus occasional Saturday work as needed.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Preparation for first retaining wall installation, including excavation, leveling pad, and water curtain.

April 24, 2023

Activities:

• Construction work on about two miles of roadway located at the south end of the lake, include:
  • Work on the lakeside retaining walls, which will widen the roadway.
  • Pilot cars and traffic signals in use. Expect delays of around 15 minutes and as summer traffic increases so will delays.
• Give workers a break, be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. weekdays, plus occasional Saturday work as needed.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Work on the lakeside retaining walls.

April 17, 2023

Activities:

• Construction work on about two miles of roadway located at the south end of the lake, includes:
  • Barrier installation continues and guardrail will be removed.
  • Work begins on retaining walls used to widen the road along the lakeside.
  • Pilot cars and traffic signals in use. Expect delays of around 10-15 minutes, as summer traffic increases so will delays.
• Please do not utilize the two lakeside pullouts being used as safe areas for workers.
• Give workers a break, be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. including Saturday work.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Graphic showing construction of retaining wall used to widen the road along the lakeside.

April 10, 2023

Activities:

• Construction work on about two miles of roadway located at the south end of the lake include:
  • Both lanes will be milled and recompacted in place; conditions will be similar to a gravel road.
  • Barrier installation and grading continue.
  • Pilot cars in use. Expect delays of around 10-15 minutes.
• Please do not utilize the two lakeside pullouts being used as safe areas for workers.
• Give workers a break, be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. including Saturday work.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Topsoil removal.

April 3, 2023

Activities:

• Crews are still locating utility lines and some grading may occur later in the week. Expect minor delays.
• Traffic control including flaggers and orange safety cones will be in place.
• Give workers a break, please be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. including Saturday work.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.

Blue Mountain Drilling locating utility lines.

March 27, 2023

Activities:

• Beginning 3/27/2023: potholing, or locating utility lines, will begin.
• Some traffic control will be in place to protect workers. Expect minor delays.
• Give workers a break, please be alert to new traffic patterns and obey speed limits.
• Work hours: 7 a.m.-7 p.m. including Saturday work.

511MT:

• Current Montana construction information, width restrictions, and road conditions can be found at www.511mt.net.