NM 264 Alignment Study, Milepost 0 to 16

from the New Mexico/Arizona state line to the US 491 interchange near Yah-Ta-Hey in McKinley County

NMDOT Control No. 6101220

NM 264 rural road median view


N.M. Highway 264 (NM 264) is a 16-mile highway that extends west to east from the New Mexico/Arizona state line (Milepost [MP] 0) to the US 491 interchange near Yah-Ta-Hey (MP 16) in McKinley County. It serves as a key corridor to the Navajo Nation, connecting communities to Window Rock, AZ, located five miles across the Arizona border. NM 264 also connects to US 491 eight miles north of Gallup.

The New Mexico Department of Transportation (NMDOT), in coordination with the Federal Highway Administration, is conducting the NM 264 Alignment Study (Study) and identifying why improvements to this highway are needed. The purpose of the Study is to document existing conditions and develop highway improvement alternatives for the corridor.

The roadway improvements would be completed in segments as funding becomes available.


Funding for the Study includes state funds through House Bill 2-2021 Legislative Session (HB2-21).

Construction funding has been identified for a segment of NM 264 between MP 10 and MP 14 (Segment 1) under Control Number 6101221 and consists of state and federal dollars (e.g. HB2-21, Road Fund, STP Flex and STP Rural<5K).  Segment 1 highway improvements under consideration include reconstruction of the existing four lanes, drainage improvements, and updating roadside barriers, signing and pavement markings.


Study Area Map (click on image to enlarge).


The Study will document the existing conditions, identify traffic and safety areas of concern, investigate sensitive cultural and biological resources, seek public and agency feedback, identify improvement alternatives and arrive at a proposed improvement alternative.

Existing Conditions Identified:

  • Poor pavement conditions;
  • Roadway embankment erosion;
  • Right-of-Way limitations;
  • Lack of median drainage system;
  • Non-compliant pedestrian access routes; and
  • Significant sediment deposits.

Potential Improvements Include:

  • Improved roadside barriers;
  • Improved turnouts/access;
  • Updated pavement markings;
  • Upgraded ITS infrastructure (broadband);
  • Upgraded signage;
  • Addition of drainage improvements; and
  • Improved bicycle and pedestrian facilities.




District 6

STIP Number


Study and Design


Priscilla Benavides, PDE
NMDOT Central Region Manager



A public meeting for the study was hosted on August 23, 2022 followed by a 30-day comment period, which closed on September 22, 2022. Visit the link below to watch the recorded event and view the presentation


Once highway improvement alternatives have been identified and evaluated, the Study team will host a second public meeting to present the alternatives to the public for review and input.

NM 264 Fact Sheet

August 2022


Call:  (602) 299-9581
If no answer, please leave your name & best phone number and we will call you right back!

NM 264 Alignment Study
C/O Kristi Shepherd, HDR Engineering
20 E. Thomas Road, Ste 2500
Phoenix, AZ 85012

Check back regularly for updates on how you can get involved!

NM 264 rural road median view


Scoping Report for Segment 1, NM 264 MP 10 to MP 14

June 2021

Scoping Report (Segment 1) - Appendix A Drainage Exhibits

June 2021

Scoping Report (Segment 1) - Appendix B Hydrology

June 2021

Scoping Report (Segment 1) - Appendix C Hydraulics

June 2021

Scoping Report (Segment 1) - Appendix D Pavement Conditions Assessment Report

June 2021

NM 264 Alignment Study Public Involvement Plan

July 2022

NM 264 Alignment Study

Project Timeline


Spring/Summer 2022

• Establish the need for improvements


Summer/Fall 2022

• Virtual Public Meeting #1 – August 23, 2022
• Identify highway improvement alternatives


Fall/Winter 2022

• Evaluate improvement alternatives
• Prepare draft Alignment Study document


Winter 2022/2023

• Virtual Public Meeting #2


Spring 2023

• Select preferred alternative(s)
• Completion of NM 264 Alignment Study


Fall 2023

• Anticipated Start of Construction for Segment 1 (CN 6101221)