Yuma County Has Until October 12 to Comment on 23 Miles of New Border Wall

Federal officials are seeking public input on a second border barrier through eastern Yuma County. The deadline is today, October 12, 2026, and questions remain about environmental protections, cultural resources and how public comments will influence construction.

Yuma County residents have until October 12, 2026, to comment on a federal plan to build approximately 23 miles of new secondary border wall along the county's southern boundary. The work is part of a much larger proposal covering roughly 225 miles across four Arizona counties.

The deadline comes as construction activity in the region has already produced documented damage to an Indigenous cultural site at Cabeza Prieta National Wildlife Refuge. Federal officials are asking residents for information about potential environmental, cultural, commercial and community impacts, even as questions remain about which protections apply and what public comments can change.

For people familiar with the affected land, water sources, access routes or cultural resources, this is an opportunity to put specific concerns into the federal record.

What the government plans to build

A secondary border barrier is exactly what it sounds like: another wall on the U.S. side of the existing one. The two barriers create a corridor that Border Patrol can use for enforcement operations.

Customs and Border Protection's project description calls for 30-foot-high steel bollards, each six inches square and spaced approximately four inches apart. The design includes anti-climb features, angled tops and connection plates.

The work extends beyond installing steel fencing. Depending on the location, construction may include patrol roads, surveillance cameras, lighting, underground utilities, drainage gates and areas cleared for equipment and materials.

CBP's September 11 update divides the approximately 225 miles of secondary barrier among four counties: 81 miles in Cochise, 62 in Pima, 59 in Santa Cruz and 23 in Yuma.

Those figures concern the additional barrier, not separate mileage for primary walls or surveillance equipment.

How to submit comments by October 12

CBP is accepting comments through Monday, October 12, 2026. Its September project instructions provide the following contact information:

Email: TucsonComments@cbp.dhs.gov

Email subject: Tucson Sector Secondary Barrier Construction

Telephone: 833-412-2056

Mail:

U.S. Customs and Border Protection
U.S. Border Patrol Headquarters
Program Management Office Directorate
1300 Pennsylvania Ave. 6.5E Mail Stop 1039
Washington, DC 20229-1100
ATTN: Michelle Barnes

CBP asks for fact-based comments that identify specific locations and, where possible, include supporting documents, research or other evidence.

The agency's interactive project StoryMap adds the word "System" to the suggested email subject. The instructions above follow CBP's September letter and project webpage.

Neither specifies a closing hour or time zone. Residents submitting comments on the deadline should not assume that an unspecified hour means submissions will be accepted until midnight.

There is another detail worth knowing before sending anything: CBP says comments, including the names and addresses of people submitting them, will become part of the public record.

The September project update letter provides the federal instructions.

Where the Yuma County barrier would go

The local section is associated with a federal project called Tucson 1. Despite the name, the planned secondary barrier extends into eastern Yuma County.

CBP's Smart Wall project listing identifies Tucson 1 as a 22.5-mile secondary-wall project. The agency's project FAQ describes the associated contract as covering approximately 23 miles of secondary wall and additional detection technology in the Tucson and Yuma Border Patrol sectors.

The Arizona Daily Star identified the 22.5-mile stretch as running west from the eastern edge of Yuma County along the border at Cabeza Prieta National Wildlife Refuge. The construction-industry publication AZBEX independently described the same location in April.

The Tucson designation refers to a Border Patrol project and sector. It should not be mistaken for a county boundary, and it does not mean the barrier would run through the City of Yuma.

Two other federal projects in the region are separate. Yuma 1 involves detection technology, while Yuma 2 includes additional wall construction. Progress reported under those names should not automatically be attributed to Tucson 1.

CBP's publicly readable project listing confirms Tucson 1's length, but does not establish the project's current construction status. The number of miles completed along the Yuma County stretch remains unconfirmed.

A federal waiver raises another question

On November 19, 2025, then-Homeland Security Secretary Kristi Noem issued a determination under Section 102 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996. The determination took effect that day.

The Federal Register notice waived a long list of legal requirements for border barrier construction and related work within a specifically defined project area.

Among the laws listed were the National Environmental Policy Act, Endangered Species Act, Clean Water Act, National Historic Preservation Act, Archaeological Resources Protection Act, Native American Graves Protection and Repatriation Act, and Administrative Procedure Act.

The notice also included the Clean Air Act, Safe Drinking Water Act, Wilderness Act and legislation governing the National Wildlife Refuge System.

Those are substantial exemptions. Ordinarily, several of these laws provide environmental review requirements, protections for historic and cultural resources, or procedures for federal decision-making.

But the waiver has a defined geographical scope. It identifies two stretches of border within the Tucson Border Patrol Sector, one extending from Border Monument 195 east to Monument 163 and another beginning approximately 1.15 miles west of Monument 141 and extending east to Monument 70.

Whether Tucson 1's Yuma County stretch falls within those precise boundaries has not been conclusively established from the maps and records reviewed for this article. The notice should not be read as proof that every mile of the proposed Yuma County barrier is covered by this particular waiver.

There is also the question of what public comments can accomplish.

CBP says information received from residents and stakeholders will help inform environmental planning and construction decisions. The waiver does not, by itself, explain which decisions remain open under the current comment process or how the agency will respond to concerns about particular locations.

That distinction matters. A public comment opportunity and a legally required environmental review are not necessarily the same thing.

The damage at Cabeza Prieta

Concerns about cultural resources are not hypothetical.

On April 23, 2026, construction equipment damaged the Las Playas Intaglio, an ancient Indigenous geoglyph at Cabeza Prieta National Wildlife Refuge west of Ajo.

According to a May 4 investigation by Engineering News-Record, equipment cut a swath approximately 60 to 70 feet wide across the site.

The intaglio is a fish-shaped image etched into desert pavement, believed to be at least 1,000 years old and considered sacred by the Hia-Ced O'odham and Tohono O'odham peoples.

CBP confirmed the damage to Engineering News-Record, characterized it as inadvertent and said the remaining portion of the site had been secured.

The Tohono O'odham Nation said a cultural protection monitor had previously identified the location as one the contractor was required to avoid. According to the Nation's account reported by ENR, tribal officials were not notified until April 28, five days after the damage occurred.

ENR identified BCCG, a joint venture involving BCSS, Caddell Construction and Gibraltar, as the contractor on Tucson 1. CBP confirmed the company's role.

The publication also examined an April 16 contract modification adding more than $45 million in work without extending the schedule. CBP said that modification was unrelated to the Las Playas incident.

What remains unanswered is how the equipment entered the protected location in the first place. ENR reported that CBP did not explain how the site was damaged after it had reportedly been flagged for avoidance.

The available reporting establishes CBP's confirmation of the damage and identifies the project contractor. It does not establish who directed the clearing operation or who was responsible for the equipment entering the site.

Water, wildlife and access remain concerns

The cultural-site damage is one documented consequence of construction in the region. Other concerns are recorded in CBP's May stakeholder feedback report.

Residents and organizations raised questions about wildlife movement, habitat fragmentation, groundwater use, altered drainage, artificial lighting, access to public lands and effects on local economies.

Those comments describe concerns submitted during an earlier stage of the project. They should not be confused with findings that every proposed segment has already caused those effects.

For Yuma County, several practical questions remain:

• Where will contractors obtain water for construction and dust control?
• How will drainage structures handle stormwater and prevent flooding or erosion?
• What access will remain for recreation, land management and other existing uses?
• How will wildlife passages and cultural resources be identified and protected?
• What procedures will apply if construction encounters previously undocumented archaeological resources?

CBP says its construction planning incorporates surveys, environmental and cultural monitors, and measures intended to reduce damage.

Those measures deserve attention, particularly given what happened at Las Playas. The existence of a monitoring procedure does not establish that it worked at every location.

The available project documents also do not establish that a particular Yuma irrigation district has committed water to the project, or that household water supplies will be affected. Those would require separate evidence.

What happens after October 12

CBP says it will use stakeholder comments and survey information to inform project planning and execution. The agency also plans to publish an Environmental Summary Report when that work is complete.

The materials reviewed do not provide a county-specific completion schedule or a firm publication date for the report.

Nor does the October 12 comment deadline establish when construction can begin or resume at any particular location. Construction-related damage has already been documented at Cabeza Prieta, while the present completion status of the full Yuma County secondary-barrier segment remains unclear.

For residents, the immediate deadline is October 12. The longer questions concern what happens to the information submitted, how cultural and environmental protections will be carried out on the ground, and whether the federal waiver reaches the precise stretch of border identified for construction in Yuma County.

Those questions will remain after the comment period closes.

About this reporting: This article relies on the cited federal records and published reporting. It does not include interviews conducted by Yuma Informed with CBP or Yuma-area officials.