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
March 16, 2026
AZ Dept of Emergency Mgmt
Attn: contact43@example.gov
RE: Section 106 Consultation, Highway widening (NEPA/Section 106) — La Paz Co. Supplemental
SHPO File: PRJ-2026043 · La Paz County, AZ
Received: 3/16/2026 · Deadline: 4/15/2026

Dear contact43@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 AZ Dept of Emergency Mgmt.

Area of Potential Effects (APE). The APE includes a polygon of approximately 105.18 km² centered at 31.7060°, -109.8591° in La Paz County, Arizona.

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

Flood hazard. The APE intersects FEMA flood zone(s) X.

Identified historic properties. No NRHP-listed properties were identified within the APE based on the submitted documentation and our current geospatial data.

ADOT historic / scenic route(s). Benson to Dogulas to Rodeo Highway; Douglas to Wilcox to Safford to Springerville to Sanders.

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,

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.