SUNZIA • TRANSWEST EXPRESS • GRAIN BELT EXPRESS • MULTI-STATE SUPERLOAD PERMITS

Deep Grid Interconnection Transmission Corridor Superload Route Guide

High-tonnage route clearances, bridge bypass engineering, Class 1 rail transload sidings, and utility line lift orchestration for moving 1,200,000 lb converter station superloads across key HVDC energy corridors.

SunZia Southwest: Corona NM East to Pinal County AZ West

550 MILES • 3,000 MW

Connecting Pattern Energy wind generation in Torrance & Lincoln Counties, New Mexico, across the Rio Grande basin and southern Arizona desert to the Salt River Project (SRP) transmission nexus in Pinal County.

Origin Rail Transload

BNSF Belen Siding (NM)

Choke Point

Rio Grande Bridge US-380

Trailer Platform

24-Axle Girder Bridge

Lead DOT Authority

NMDOT / ADOT Joint Superload

Critical Engineering Obstacles & Bypass Protocols

MP 042:

Belen Transload → US-60 Continental Elevation Incline

Dual 650HP Prime Movers required in push-pull setup for 6.2% grade over Abo Pass. Automated hydraulic suspension steering on 12-axle rear dolly.

MP 188:

Rio Grande River Crossing (Socorro County, NM)

AASHTO bridge rating structural analysis requires centerline crawl at ≤5 MPH with zero adjacent traffic and beam span deflections laser-monitored.

MP 340:

Peloncillo Mountains State Line Crossing (NM → AZ)

Overhead 69kV transmission crossing requires electric utility line de-energization and lift bucket truck escort across I-10 bypass frontage.

Request Corridor Superload Clearance

Coordinate route engineering, bridge stress simulations, and multi-state DOT permits with Exspeedite Heavy Transport Division.

Compliance Mandate:

• AASHTO LRFR bridge analysis with >1.30 rating factor.

• Continuous GPS electronic permit logging.

• Two law enforcement escorts per state jurisdiction.