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US-95: McArthur Lake

Adjusting sharp curves will improve safety.

One mile will be reconstructed near the lake to make turns easier for drivers and to elevate the highway where it dips down to the water. Elevating US-95 will also allow wildlife to pass underneath to access the refuge.

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Open house
June 18

Project history

Safety improvements to US-95 near McArthur Lake were originally identified for design in the early 2000s due to crashes associated with wildlife and icy conditions. The project was removed from the program due to high costs, allowing ITD to address other needs in the area.

Although construction funding was never identified, ITD worked with partners to implement other available options while addressing different safety needs. ITD worked with Idaho Fish and Game to remove brush, improving drivers’ ability to see wildlife near the road. A new turn lane was also striped for those turning left onto McArthur Lake Road.

Funding for safety improvements is limited, meaning ITD must rank projects to put it to the best use. Crashes indicate areas in need of changes. Following a fatal crash in 2016, funding for this area was identified and design began again.

Current design

The south end of the new bridge will be shifted to the east approximately 50 feet, but the north end will not move. During construction, traffic is planned to run on temporary lanes to the west.

ITD is working with Idaho Fish and Game and the Kootenai Tribe to develop plans, including the likely installation of wildlife fencing to encourage animals to pass underneath the new structure once built.

The current design does not include plans to improve the Shiloh Loop and McArthur Lake Road, unlike earlier plans, to reduce construction costs.

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October 2006
Initial concept report estimates project cost at more than $20 million, project removed from the program
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ITD begins using brine, improving conditions and reducing crashes
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December 2010
Value engineering report delves deeper, and ITD pursues other improvements instead
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Left turn designated for McArthur Lake Road
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Brush and tree cover reduced near the highway to limit shade and icy conditions during winter months and decrease animal strikes
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April 2016
Crashes increase project priority
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June 2019
Open house
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Anticipated construction
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Anticipated end of construction
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The existing box culvert will be replaced with a longer bridge. The new structure will be 300 feet to span over soils not ideal for supporting a bridge and will also allow any wildlife to pass underneath the highway.

Construction is currently planned for 2022 and expected to be completed in 2023.

US-95 McArthur Lake

June 18, 2019

4:00 pm - 7:00 pm

Naples Elementary

Members of the public are invited to come at any time to learn more about planned improvements to US-95 near McArthur Lake.

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Upcoming meetings

June 18, 2019
Naples Elementary
4:00 pm - 7:00 pm
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