Montana Department of Transportation

MDT News

Proposed A Safety Enhancement Projects, Southwest Mont

Proposed a Safety Enhancement Projects at Multiple Locations in
Southwest Montana

BOZEMAN, MONTANA (February 13, 2020) — The Montana
Department of Transportation (MDT) would like to announce and invite
the public to comment on the proposed safety enhancements to roadways
in southwest Montana.  The project is located in MDT’s Butte

The proposed safety enhancements including Linear
Delineation (linear reflectorization of concrete barrier and metal
guardrails) will be installed at the following locations:

Route	RP
     Location	     Proposed Improvement

S-518	0.000 – 4.500	MT
City – E. Helena     Install corridor-wide standard delineation (RP
0.0-4.5). Install panel delineation and S-curve warning signs through
Ashgrove curves (RP 1.0 - 1.6). Install curve warning signs for the
curve at RP 1.9.

P-41	2.500 – 63.500	North of Avon	Install 8"
edge line and panel delineation RP 2.5-6.5.  

I-90	235.000 –
241.000       Homestake Pass  Oversized warning signs will be added
with post-mounted flashers "Slow Moving Vehicles Next 6 Miles." EB
sign to be placed near RP 235-236, WB sign to be placed near RP

I-90	265.000 – 297.000	W of Three Forks       
Standard median delineation will be added in areas where it is
lacking between RP 265-297.

I-90	316.000 – 319.000	Bozeman
Hill	Linear delineation will be installed on barrier in curves, EB
and WB RP 316.5-318.

I-90	257.000 – 261.000	Cardwell Hill  
Linear delineation will be installed on barrier in curves, EB and WB
from RP 258-260.5. Install a series of 2-3 WB oversized warning signs
that alert towing vehicles to the risk of rollovers to be placed near
the existing vertical grade warning signs. Install 2 WB curve warning
signs, panel delineation and chevrons through curve at RP 257.7.

   349.000 – 354.000	   Springdale	   Linear delineation will be
installed on barrier in curves, EB and WB from RP 349.45-351.745, and
EB from 353.06-353.7.  

N-50	38.000 – 40.000 N of Big Sky	N of
Big Sky- Install "Wildlife Crossing" signs at RP 52.1 NB and 53.8 SB.
Install chevrons and w-beam lineal delineation for SB curve at ~RP

N-50	52.000 – 54.000 S of Big Sky	S of Big Sky- Install
panel delineation RP 38.6-39.1. Remove arrow board at RP 39 and
replace with chevrons.

S-205	5.000 – 8.500	Logan	Logan-panel
delineation will be added RP 5.6-6.6, warning signs will be installed
for curve at RP 8.

S-345	0.000 – 6.500	Bozeman Cottonwood
Rd/19th, Bozeman-delineation will be added throughout the corridor
(Intersection with Huffine RP 0.0 and extend south to 19th, then east
to RP 7.0.) Replace object markers on bridges. Add panel delineation
and trim shrubs through slight curves. Cottonwood & 19th
intersection: new intersection warning signs will be installed. The
following signs will be added oversized WB stop sign, new WB stop
ahead sign and new WB double-sided arrow sign. 19th and
Fowler/Hyalite intersection: new warning signs. New NB/SB oversized
stop signs, new NB/SB stop ahead signs.

U-602	4.500 – 5.500  
Belgrade	Add retroreflective backplates on signal at Thorpe.
Install advance intersection warning signs.

Construction is
tentatively planned for 2021 depending on completion of design and
availability of funds. New right-of-way and relocation of utilities
will be required. MDT staff will contact all potentially affected
landowners prior to performing survey work on their land. Staff will
again contact landowners prior to construction regarding property
acquisition and temporary construction permits.

An important part of
properly planning for future projects is partnering with the
community. The Montana Department of Transportation welcomes the
public to provide ideas and comments on the proposed project.
Comments may be submitted online at or in writing to Montana
Department of Transportation, Butte office at PO Box 3068, Butte, MT 
59702-3068. Please note that comments are for project UPN 9669000.

The public is encouraged to contact Butte District Administrator
William Fogarty at (406) 494-9635 or Project Design Engineer Michael
S. Grover at (406) 444 4188 for additional information.

accessible formats of this document will be provided on request.
Persons who need an alternative format should contact the Human
Resources and Occupational Safety Division, Department of
Transportation, 2701 Prospect Avenue, PO Box 201001, Helena, MT
59620. Telephone 406-444-9229. Those using a TTY may call
1(800)335-7592 or through the Montana Relay Service at 711.