WYOMING NATRIUM • TVA CLINCH RIVER • DARLINGTON SMR • PALISADES MICHIGAN

Inland Railhead to SMR Power Generation Facility Heavy Route Guide

Route surveys, dual-lane SPMT axle loadings, rural bridge structural reinforcements, and utility line lifting protocols for moving factory-fabricated SMR vessels from mainline rail sidings to nuclear islands.

Select SMR Deployment Corridor

Review rail siding transload locations, highway grades, bridge crossing protocols, and police escort details.

FINAL-MILE HIGHWAY DISTANCE 11.4 Miles Est. Speed: 4–8 mph (~2.0 hrs)
MIN OVERHEAD CLEARANCE 24 ft 2 in Pacificorp 69kV line lifts required
MAX BRIDGE AXLE LOADING 21,500 lbs / axle Centerline crawl across Hams Fork
ESCORT & SECURITY PROTOCOL WHP + Armed Security 4 Wyoming Highway Patrol Cruisers

Detailed Route Alignment & Turn Geometry

Departs Union Pacific mainline industrial siding south of Kemmerer rail yard. Transits west along US Highway 189 onto Wyoming State Route 233 towards the former Naughton Power Station site. Negotiates a 90-degree intersection onto plant access road requiring dual-operator crab steering on 20-axle SPMT transporter.

Critical Turn 1: US-189 onto WY-233 North (R = 115 ft, dual-steering)
Critical Turn 2: Plant Haul Rd onto Nuclear Island Spur (R = 95 ft)
Maximum Roadway Grade: 4.8% Sustained Grade (Tandem Prime Movers)

Utility Conflicts & Bridge Reinforcement Schedule

Two timber culverts require temporary steel jump bridges placed prior to convoy passage. One 69kV transmission span requires line outage de-energization, coordinated through PacifiCorp dispatch.

High-Voltage Power Lines: 1 Span 69kV De-energized; 4 Spans Telecommunications Lifted
Bridge Jump Structures: 2 Temporary Steel Span Bridges Deployed
Transload Siding Pad: Compacted Ballast + 1.5M lb Hydraulic Gantry Foundation

Transit Permitting Windows & Jurisdictional Authorities

Permitted Movement Window

09:00 MST – 14:00 MST (Daylight Superload Window)

Dry road pavement conditions only; zero transit during snow, ice, or fog advisory.

Authorizing Jurisdiction

WYDOT District 3 / Lincoln County Commission

Superload Class IX permit with structural bridge engineering endorsement.

Nuclear Chain of Custody

NRC 10 CFR Part 73 Physical Security Convoy

Real-time tamper telemetry and armed security vehicle leading and trailing.

Related Clean Energy & Nuclear Logistics Resources

→ SMR RPV Transport Manual → Schnabel Railcar Calc → SMR Well Rigging Audit → Exspeedite High-Speed Dispatch