Latin America & Caribbean District News

Nathaniel "Nate" Weander

Press Operations — Tue, 26 Aug 2025 12:52:00 GMT

Lt. Col. Nathaniel A. "Nate" Weander is the first commander of the U.S. Army Corps of Engineers Latin America & Caribbean District, which assumed its new name and expanded mission in June 2026. Headquartered in Puerto Rico, the district is the Corps’ first to integrate missions across Puerto Rico, the U.S. Virgin Islands, and 33 nations throughout Latin America and the Caribbean. The district leads a multi‑billion‑dollar program spanning more than seven-million square miles, delivering civil works and military construction projects, navigation initiatives, regulatory permits, emergency response efforts, and interagency and international services.

Ricardo A. Herrero

Press Operations — Fri, 08 Aug 2025 12:55:00 GMT

Maj. Ricardo Herrero hails from San Juan, Puerto Rico, and is a graduate of the United States Military Academy, where he earned a Bachelor of Science in Civil Engineering. He was commissioned into the U.S. Army Corps of Engineers in 2013 and has led with distinction across a range of operational and leadership roles.

Jacqueline J. Keiser, PG, PMP

Press Operations — Fri, 08 Aug 2025 12:53:00 GMT

Jacqueline (Jackie) Keiser currently serves as the Deputy for Programs and Project Management (DPM) for the U.S. Army Corps of Engineers Latin America & Caribbean District. In this capacity, she provides senior civilian leadership and oversight for the district’s extensive portfolio, including Civil Works, Military Construction (MILCON), Facilities Sustainment, Restoration and Modernization (SRM), Operations and Regulatory functions, Interagency and International Services (IIS), Environmental initiatives, Emergency Response, and the Regulatory Program throughout the district's area of responsibility.

Nelson Colón

Press Operations — Tue, 24 Mar 2026 14:22:00 GMT

Nelson Colón is the Chief of the Regulatory and Operations Division for the U.S. Army Corps of Engineers Latin America & Caribbean District, where he oversees critical regulatory and operational initiatives across the district's area of operation. His leadership guides the execution of the Corps’ regulatory program and the management of federal navigation channels vital to the region’s infrastructure and economic activity.

Maricarmen Crespo

Press Operations — Tue, 24 Mar 2026 14:34:00 GMT

Maricarmen Crespo is the Chief of Construction for the U.S. Army Corps of Engineers Latin America & Caribbean District. Headquartered in Puerto Rico, the Caribbean District manages a multi-billion-dollar civil works program and oversees military construction, navigation improvements, regulatory permitting, emergency response, and interagency and international services throughout the Latin American and Caribbean region.

Chad Gillan, PE

Press Operations — Tue, 24 Mar 2026 14:40:00 GMT

Chad Gillan currently serves as the Chief of Engineering for the U.S. Army Corps of Engineers Latin America & Caribbean District headquartered in Puerto Rico. In this role, he oversees a multi-billion-dollar civil works program supporting military construction, navigation infrastructure, regulatory permitting, emergency response, and international collaborations across the Latin American and Caribbean region.

Rachel D. Gray

Press Operations — Tue, 24 Mar 2026 14:43:00 GMT

Rachel D. Gray serves as District Counsel for the U.S. Army Corps of Engineers Latin America & Caribbean District. In her role as District Counsel, Ms. Gray leads a team of attorneys and a paralegal, providing comprehensive legal services in support of all district activities.

Gentry T. Hill, CPA, CDFM

Press Operations — Tue, 24 Mar 2026 14:48:00 GMT

Gentry Hill serves as the chief of Resource Management for the U.S. Army Corps of Engineers Latin America & Caribbean District, headquartered in Puerto Rico. In this key leadership role, Mr. Hill is the principal financial advisor to the district commander, entrusted with guiding all fiscal operations in support of a multi-billion-dollar civil works and military construction portfolio across the Caribbean region. His responsibilities span oversight of budget, manpower, management analysis, finance, and accounting.

Stephen (Steve) LaValle

Press Operations — Tue, 24 Mar 2026 15:07:00 GMT

Steve LaValle currently serves as the Chief of Staff for the U.S. Army Corps of Engineers Latin America & Caribbean District, where he is responsible for a broad range of leadership, coordination, and strategic duties in support of the district’s mission.

Cassandra (Cassie) Norris

Press Operations — Tue, 24 Mar 2026 15:12:00 GMT

Cassandra (Cassie) Norris is the Real Estate Chief for the U.S. Army Corps of Engineers Latin America & Caribbean District, where she leads a team of Real Estate professionals delivering acquisition, management, and disposal services in support of military stakeholders and Civil Works projects within the Caribbean.