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 5, 2026
USFS — Coconino NF
Attn: contact0@example.gov
RE: Section 106 Consultation, Tribal housing project — Maricopa Co. Supplemental
SHPO File: PRJ-2026000 · Maricopa County, AZ
Received: 4/5/2026 · Deadline: 5/5/2026

Dear contact0@example.gov:

The Arizona State Historic Preservation Office (SHPO) has reviewed your tribal housing project 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. Tribal housing project submitted by USFS — Coconino NF.

Area of Potential Effects (APE). The APE includes a polygon of approximately 103.18 km² centered at 33.4255°, -111.0668° in Maricopa County, Arizona.

Federal nexus. The APE intersects the following surface management jurisdictions: Tonto N.F (USFS).

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

Identified historic properties. The submission identified 5 historic properties within or adjacent to the APE:

  • Reppy Avenue Bridge (NRIS 88001689) — recommended effect: Adverse effect.
  • Keystone Avenue Bridge (NRIS 88001692) — recommended effect: No historic properties affected.
  • Inspiration Avenue Bridge (NRIS 88001691) — recommended effect: Adverse effect.
  • Devil's Canyon Bridge (NRIS 88001681) — recommended effect: No adverse effect with conditions.
  • Queen Creek Bridge (NRIS 88001679) — recommended effect: No historic properties affected.

ADOT historic / scenic route(s). Quartzsite to Wickenburg to Phoenix to Globe to Show Low to Springerville; Gila-Pinal Scenic Road.

Determination. Based on the foregoing, SHPO concurs with a finding of ADVERSE EFFECT, with stipulations 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,

R. Alvarez
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.