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
April 17, 2026
FHWA via ADOT
Attn: contact10@example.gov
RE: Section 106 Consultation, Commercial retrofit — Maricopa Co. Phase II
SHPO File: PRJ-2026010 · Maricopa County, AZ
Received: 4/17/2026 · Deadline: 5/17/2026

Dear contact10@example.gov:

The Arizona State Historic Preservation Office (SHPO) has reviewed your commercial retrofit 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. Commercial retrofit submitted by FHWA via ADOT.

Area of Potential Effects (APE). The APE includes a polygon of approximately 104.24 km² centered at 32.5263°, -110.0619° 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) A, X (Special Flood Hazard Area).

Identified historic properties. The following NRHP-listed or eligible properties lie within or adjacent to the APE:

  • Sierra Bonita Ranch (NRIS 66000181), National Historic Landmark2.92 km from APE centroid.

Determination. Based on the foregoing, SHPO concurs with a finding of NO ADVERSE EFFECT pursuant to 36 CFR 800.5.

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,

T. Hernandez
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.