April 29, 2024
The Montana Department of Transportation (MDT) and Coral Construction crews will continue grading and seeding operations in the median next week, Monday, April 29 through Wednesday, April 1. Work will occur along Interstate 90 (I-90) from Whiskey Gulch, east to the Interstate 15 (I-15) South and I-90 interchange.
Crews will continue seeding work Thursday, May 2, and Friday, May 3, beginning near Butte and working east to the base of Homestake Pass.
The left lanes closest to the median on both sides of I-90 will be closed where work is underway. Motorists should expect reduced speeds when passing through active work zones.
Crews will be on-site Monday through Friday, from 7 a.m. to 5 p.m. All work is subject to change due to weather and other unforeseen circumstances.
Please slow down, follow traffic control, and watch for workers and equipment throughout the project area.
April 19, 2024
Coral Construction continues work on the Butte area phase of the Median High-Tension Cable Rail project.
Grading operations will continue in select areas of the median along Interstate 90 (I-90) and Interstate 15 (I-15) from April 22 through May 3, in preparation for anchor and line post installation.
All work is subject to change due to weather and other unforeseen circumstances.
Crews will be on-site Monday through Friday, from 7 a.m. to 3 p.m.
Median and shoulder closures may be required where work is underway.
Please slow down, follow traffic control, and watch for workers and equipment throughout the project area.
April 12, 2024
MDT and Coral Construction will resume work on the Butte area phase of the Median High-Tension Cable Rail project next week.
This construction season, crews plan to install cable rail along 18 miles of Interstate 15 (I-15), starting at the Buxton Interchange (mile marker 116) and extending north, ending on Butte Hill (mile marker 134). Work will occur on Interstate 90 (I-90) from the Anaconda Interchange (mile marker 219), extending east for 14 miles to the base of Homestake Pass (mile marker 230), ending two miles east of the Montana Highway 375 (MT 375) and Continental Drive Exit.
Work will begin with crews installing traffic control signs along I-90 and I-15, and grading select areas of the median along I-90 in preparation for anchor and line post installation.
Median and shoulder closures may be required where work is underway.
Please slow down, follow traffic control, and watch for workers and equipment throughout the project area.
MDT anticipates minimal travel impacts. Motorists should expect minor delays, single-lane closures, and reduced speeds when passing through active work zones.
Crews will be on-site Monday through Saturday and occasionally during nighttime hours. Work is expected to be completed this year. This schedule is subject to change due to weather and other unforeseen circumstances.
October 27, 2023
The Montana Department of Transportation (MDT) and Coral Construction have paused work on the Median High-Tension Cable Rail project in the Butte area until spring.
Crews were able to complete terminal end anchor installation on Interstate 15 (I 15), north of the I 15 and Interstate 90 (I 90) Interchange this fall in preparation for the 2024 construction season.
MDT looks forward to completing this important safety improvement project next year. Updates will be provided as 2024 work approaches.
If you have questions or comments, please do not hesitate to share them with us by emailing Sloane at
October 20, 2023
Due to weather, Coral Construction will pause work on the Median High-Tension Cable Rail Project in the Butte area next week.
Crews are installing anchor posts today, Friday, October 20, from 6 a.m. to 6 p.m., on Interstate 90 (I 90), from just east of the Interstate 115 (I 115) City Center Exit, to the east end of the project two miles east of the Montana Highway 375 (MT 375) and Continental Drive Exit.
If you have questions or comments, please do not hesitate to share them with us by emailing Sloane at
October 13, 2023
The Median High-Tension Cable Rail project is underway in the Butte area. Coral Construction crews will begin installing anchor posts in the median of Interstate 15 (I 15) and Interstate 90 (I 90) next week.
Crews will be working on I 15 North, north of the I 15 North and I 90 Interchange, on Tuesday, October 17, through Thursday, October 19, from 6 a.m. to 6 p.m.
Anchor post installation on I 90 will begin just east of the Interstate 115 (I 115)/City Center Exit, to the east end of the project two miles east of the Montana Highway 375 (MT 375) and Continental Drive Exit. Crews will be onsite Friday, October 20, from 6 a.m. to 6 p.m.
The left lanes closest to the median on both sides of I 15 and I 90 will be closed where work is underway.
Please slow down, follow traffic control, and watch for workers and equipment throughout the project area. Drivers should anticipate single-lane traffic, reduced speeds, and minor travel delays.
If you have questions or comments, please do not hesitate to share them with us by emailing Sloane at
October 6, 2023
The Median High-Tension Cable Rail project will begin in the Butte area next week. Coral Construction crews will grade select areas in the median of Interstate 15 (I 15) and Interstate 90 (I 90).
Crews will be working on I 15 North, north of the I 15 North and I 90 Interchange, on Tuesday, October 10, and Wednesday, October 11, from 6 a.m. to 6 p.m.
Work on I 90 will occur just east of the Interstate 115 (I115)/City Center Exit, to the east end of the project two miles east of the Montana Highway 375 (MT 375) and Continental Drive Exit. Crews will be onsite Thursday, October 12, and Friday, October 13, from 6 a.m. to 6 p.m.
The left lanes closest to the median on both sides of I 15 and I 90 will be closed where work is underway.
Please slow down, follow traffic control, and watch for workers and equipment throughout the project area. Drivers should anticipate single-lane traffic, reduced speeds, and minor travel delays.
If you have questions or comments, please do not hesitate to share them with us by emailing Sloane at
September 29, 2023
The Butte phase of the Median High-Tension Cable Rail project is anticipated to begin the week of October 9.
Coral Construction crews will be grading select areas in the median of Interstate 15 (I 15), north of the I 15 North and Interstate 90 (I 90) interchange, and I 90 on the east side of Butte.
More project details will be provided in next week's update.
Once construction begins, drivers should anticipate single-lane traffic and reduced speeds.
Remember, when traveling through a construction zone, slow down, follow traffic control, and watch for workers and equipment throughout the project area.
If you have questions or comments, please do not hesitate to share them with us by emailing Sloane at