Guardrail Installation Contractor in Idaho | Ideal Fencing Corp
RailCo LLC, IFC's Boise-based subsidiary, installs W-beam, thrie-beam, and cable guardrail on ITD highway projects throughout Idaho — from the I-84 Treasure Valley corridor to the remote mountain rout
Key Highways Served
RailCo LLC, IFC's Boise-based subsidiary, installs W-beam, thrie-beam, and cable guardrail on ITD highway projects throughout Idaho — from the I-84 Treasure Valley corridor to the remote mountain routes of Central Idaho. With an Idaho Public Works license, ITD qualification, and local crews who know the state's volcanic soil and short mountain construction seasons, we mobilize efficiently on ITD maintenance contracts and new construction packages statewide.
ITD Guardrail Standards and Qualified Products
ITD enforces current AASHTO MASH crashworthiness standards on all new and replaced guardrail installations and maintains a Qualified Products List (QPL) that governs acceptable terminal systems, post hardware, and W-beam section properties. Our procurement team cross-references ITD Standard Specifications and project special provisions to confirm every guardrail component — from end terminals to block offsets — appears on the ITD QPL. Common systems on Idaho projects include MASH TL-3 compliant terminals such as the FLEAT, ET-2000 Plus, and SKT systems, and high-tension cable barrier meeting ITD standard plan dimensions.
Snake River Plain and I-84 Corridor Guardrail
The I-84 corridor through Southern Idaho is one of the fastest-growing freight and commuter routes in the Western US. RailCo installs guardrail and barrier on I-84 from Mountain Home through the Treasure Valley to Caldwell, including at interchange overpasses like the Northside Overpass in Nampa and bridge structures such as the Cloverdale Bridge in Ada County. Basalt bedrock underlies much of the Snake River Plain at shallow depth; our crews bring rotary drilling equipment rather than relying on driven-post methods that fail in volcanic rock. All hardware is hot-dip galvanized per ITD specifications to resist the extreme temperature swings — from 100°F summer highs to below-zero winter lows — common to this high-desert corridor.
Remote Mountain Highway Guardrail
Central Idaho contains some of the most remote highway corridors in the Lower 48 — SH-21 over Banner Summit, US-93 through the Salmon River canyon, and SH-75 through the Sawtooth Valley are mountain routes where guardrail work demands self-sufficient crews, pre-staged material deliveries, and contingency planning for weather delays. RailCo installs guardrail on remote mountain and rural sections including the I-84 Meadow Creek to Sweetzer section in Cassia County, the US-12 Arrow Bridge to Big Canyon Creek Bridge corridor, and the Lucky Peak High Bridge to Robie Creek Road corridor — routes that demonstrate the geographic range and terrain diversity of our Idaho highway capability.
Guardrail Services
W-Beam Guardrail
MASH and NCHRP 350 compliant W-beam guardrail for highways, interchanges, and roadside hazard protection.
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High-Tension Cable Barrier
Median cable barrier systems for divided highways that prevent cross-median crashes at a fraction of the cost of rigid barrier systems.
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Box Beam Guardrail
Heavy-duty box beam guardrail for bridge approaches, high-risk curves, and locations requiring increased structural capacity.
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Impact Attenuators
MASH-tested crash cushions, sand barrels, and water-filled attenuators for highway gore areas, bridge piers, and fixed hazards.
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Bridge Rail
Concrete and steel bridge railing systems, retrofit upgrades, and bridge-to-guardrail transitions for DOT bridge projects.
Learn moreCities & Corridors We Serve in Idaho
Boise
Ada County
RailCo LLC's operations center sits within five miles of downtown Boise, placing crews on I-84, I-18...
Nampa
Canyon County
Nampa anchors Canyon County's segment of I-84 — one of the most heavily traveled freight routes in S...
Meridian
Ada County
Meridian's position at the I-84/SH-69 interchange makes it one of ITD's most active capital investme...
Idaho Falls
Bonneville County
Idaho Falls sits at the convergence of I-15 and US-20 on the Snake River Plain — a high-desert corri...
Twin Falls
Twin Falls County
Twin Falls County bridges the I-84 mainline — Idaho's primary east-west freight corridor — with the ...
Frequently Asked Questions
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