Prototype·Built by Concourse for Arizona State Historic Preservation Office
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Arizona State Historic Preservation Office
State Parks Building · 1100 W Washington St · Phoenix, AZ 85007 · shpo@azstateparks.gov
Prototype letterhead — generated by SHOPP
May 24, 2026
Desert Archaeology LLC (synthetic)
Attn: contact123@example.gov
RE: Section 106 Consultation, Highway widening (NEPA/Section 106) — Maricopa Co. Supplemental
SHPO File: PRJ-2026123 · Maricopa County, AZ
Received: 5/24/2026 · Deadline: 6/23/2026

Dear contact123@example.gov:

The Arizona State Historic Preservation Office (SHPO) has reviewed your highway widening (nepa/section 106) submission for the above-referenced undertaking pursuant to Section 106 of the National Historic Preservation Act and its implementing regulations at 36 CFR Part 800.

Project description. SYNTHETIC demonstration record. Highway widening (NEPA/Section 106) submitted by Desert Archaeology LLC (synthetic).

Area of Potential Effects (APE). The APE includes a polygon of approximately 102.96 km² centered at 33.6086°, -111.9925° in Maricopa County, Arizona.

Federal nexus. The APE intersects the following surface management jurisdictions: Private Land (Private); State Trust Land (State).

Flood hazard. The APE intersects FEMA flood zone(s) X, AO (Special Flood Hazard Area).

Identified historic properties. The submission identified 1 historic property within or adjacent to the APE:

  • Roald Amundsen Pullman Private Railroad Car (NRIS 09000582) — recommended effect: No historic properties affected.

ADOT historic / scenic route(s). Quartzsite to Wickenburg to Phoenix to Globe to Show Low to Springerville.

Determination. Based on the foregoing, SHPO concurs with a finding of NO ADVERSE EFFECT pursuant to 36 CFR 800.5. Stipulations to protect contributing resources during construction shall be incorporated into the project design and monitored by a qualified historic preservation specialist.

This determination is non-final until concurrence is received from all consulting parties. Should the scope of the undertaking change, please resubmit for re-review per 36 CFR 800.13.

Sincerely,

B. Russo
reviewer · Arizona SHPO
This letter was auto-drafted by SHOPP using the unified GIS layer set and the project’s submitted polygon. Final review and signature by the assigned reviewer is required before issuance.