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Old Spiral Highway, Lewiston Hill, Idaho
Photo: Scott Thompson · CC BY 3.0 · cropped

Drives Idaho North Idaho

Old Spiral Highway

Lewiston Hill, Idaho · Lewiston → US-95

Intense6.6 mi15 min1,900 ft climbHigh point ≈ 2,600 ftOne way
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The drive

The Old Spiral Highway is the former US 95 grade up Lewiston Hill. Wikipedia counts 64 curves on it, climbing about 2,000 feet from the riverbank to a summit of 2,756 feet, and calls it a very twisty road. It branches off Highway 128 at Lewiston.

The highway was decommissioned in 1977, when the current US 95 alignment opened. This drive follows the old road up from the river to where it meets US 95 near Spur Road. It is 6.6 miles and takes about 15 minutes, and the intensity is Intense.

Along the way

  1. Lewiston (Highway 128)
  2. US-95 (Spur Road)
Elevation
1,900 ft of climbing · high point ≈ 2,600 ft
LewistonUS-95
Curves
Twisty most of the way
LewistonUS-95
GentleHairpins

Good to know

  • Expect 64 curves on the way up, so take it slowly.
  • It was the primary northbound route out of Lewiston for about sixty years before the current US 95 opened in 1977.

Open all year, weather permitting. Roads close for snow, fire, storms and repairs: before you set off, check Idaho 511.

Questions about this drive

How long does the Old Spiral Highway take to drive?

The Old Spiral Highway from Lewiston up to US 95 is 6.6 miles and takes about 15 minutes.

How many curves are on the Old Spiral Highway?

Wikipedia counts 64 curves on the Old Spiral Highway up Lewiston Hill.

Why is it called the Old Spiral Highway?

It was US 95's grade up Lewiston Hill until 1977, when the current US 95 alignment opened.

What you get in the app

Turn by turn, on this roadSpoken directions along the exact route. Carve never reroutes you onto a faster one.
Preview it in 3DFly the whole drive over satellite and terrain before you go.
Drive it with no signalAPEXDownload the map and every turn before you go.
Live Group TrackingAPEXEveryone on the route, on the map, by name.
Road conditionsAPEXWet or dry, ice, fog and wind along the road before you go.
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More drives near here

Distance, time, elevation, curves and intensity are from Carve's route. Checked 2026-10-28.

Map of Old Spiral Highway, from Lewiston to US-95