Access Site
ID
Firth Bridge
City: Firth, ID
County: Bingham County
Type: Boat Ramp
Location: 43.31187208, -112.18346496
Air Temp: --
Location
Interactive access map
Loads when you reach this section.
Nearby Gauge Conditions
Real-time data from USGS Water Services
Whitewater Runs on Snake River
21 runs (1 nearby)Difficulty Classes
I Easy
II Novice
III Intermediate
IV Advanced
V Expert/Extreme
VI Unrunnable
Position relative to this access site:
Put-in at this location
This location is on the run
Take-out at this location
Downstream from here Upstream from here
Downstream from here Upstream from here
These whitewater runs are on the same river but located more than 50 miles from this access site.
II-III+
81 mi away
8 - Sheep Gulch to Palisades Reservoir
3.9 mi
III
85 mi away
7 - West Table to Sheep Gulch (Alpine Canyon)
7.9 mi
I-II
94 mi away
3 - Moose to Wilson Bridge
14.5 mi
I
94 mi away
4 - Wilson Bridge to South Park Bridge
13.4 mi
I-III
94 mi away
6 - Astoria Bridge to West Table
9.3 mi
I-III
97 mi away
5 - South Park Bridge to Astoria Bridge
8.6 mi
I(II)
104 mi away
2 - Jackson Lake to Moose (Teton National Park)
26.0 mi
II-III
118 mi away
1- Yellowstone Natl Park Entrance to Flagg Ranch
3.3 mi
III+(V)
133 mi away
Headwaters to Heart River
16.3 mi
V+
137 mi away
C) Milner Dam to Milner Power Plant (Milner Mile)
1.5 mi
I(II)
139 mi away
D) Milner Power Plant to Star Falls (Cauldron Linn)
6.6 mi
III-IV(V)
147 mi away
E) Murtaugh Bridge to Twin Falls Reservoir - (The Murtaugh)
13.3 mi
III-IV+
167 mi away
Auger Falls Park
1.9 mi
III-IV+
176 mi away
F) Crystal Springs to Upper Salmon Falls Res.
19.3 mi
II-III
190 mi away
G) Lower Salmon Falls Dam to Bliss Reservoir
7.1 mi
16 ft/mi
I(II)
290 mi away
H) Swan Falls Dam to Walters Ferry (Birds of Prey)
16.3 mi
2 ft/mi
III-IV
337 mi away
I) Hells Canyon Dam to Pittsburg Landing
32.0 mi
12 ft/mi
II
337 mi away
J) Pittsburg Landing (or Salmon) to Heller Bar
47.4 mi
I-II
382 mi away
K. Heller Bar to Clearwater (Lewiston/Clarkston)
29.0 mi
I
398 mi away
L) Lewiston to Columbia River
140.0 mi
2 ft/mi
Whitewater data from
American Whitewater
About This Access Site
Firth Bridge offers a concrete boat ramp with good parking and restroom facilities, maintained by the City of Firth on the Snake River in southeast Idaho. This is a popular access point on a major river system—the Snake River is a significant waterway (Stream Order 9) with substantial flow averaging nearly 50,000 cubic feet per second. However, water levels can be highly variable, so be prepared: high water can create swift conditions with minimal eddy space near the ramp, while low water may require dragging your boat to launch. The ramp works best when water levels are moderate.
Paddlers and boaters should note that immediately downstream you'll pass under a train bridge and Highway 20 bridge in quick succession. After passing under these structures, move quickly to the right side of the river to avoid being swept into unintended downstream sections. The Snake River in this area has a moderate gradient (15.8 ft/mile average) and swift current (average velocity 10.81 ft/s), so this is best suited for intermediate to experienced boaters comfortable with moving water.
The Firth Bridge area provides access to scenic country near the Hell's Half Acre Wilderness Study Area, featuring a unique 5,200-year-old lava flow landscape. Bingham County maintains an excellent network of 12 Snake River access points, making this region ideal for multi-day paddling trips.
Paddlers and boaters should note that immediately downstream you'll pass under a train bridge and Highway 20 bridge in quick succession. After passing under these structures, move quickly to the right side of the river to avoid being swept into unintended downstream sections. The Snake River in this area has a moderate gradient (15.8 ft/mile average) and swift current (average velocity 10.81 ft/s), so this is best suited for intermediate to experienced boaters comfortable with moving water.
The Firth Bridge area provides access to scenic country near the Hell's Half Acre Wilderness Study Area, featuring a unique 5,200-year-old lava flow landscape. Bingham County maintains an excellent network of 12 Snake River access points, making this region ideal for multi-day paddling trips.
Nearby Recreation Areas
Hell's Half Acre Wilderness Study Area
Located within
Lava Trail System (Hell's Half Acre)
Located within