About Us

Bringing floodplain professionals together to promote common sense floodplain development for Montana.

Our Story

About What We Do & How We Got Here

The Association of Montana Floodplain Managers is dedicated to helping support floodplain managers across the state by providing helpful training and resources. We believe that the better educated our floodplain managers are, the better we will all be when it comes to floodplain safety and preparation.

AMFM members directly benefit from discounted rates for conferences, technical training, and networking opportunities. If you are interested in joining our organization, visit our membership page to learn more about rates and benefits.


Meet Your Board Officers


Ben Fennelly, PE, CFM

HDR, Inc.

682 S Ferguson, Ste. 1
Bozeman, MT 59718
(406) 577-5019


Member Sincer: 2012


Vice Chairman

Matt Johnson, PE, CFM


800 North Last Chance Gulch, Suite 101
Helena, MT 59601
(406) 599-2287


Member Since: 2010


Jonathan Weaver, PE , CFM

Great West Engineering

2501 Belt View Drive
Helena, MT 59601
(406) 495-6171

Member Since: 2013


Eric Anderson, PE, CFM

WGM Group

1111 E. Broadway
Missoula, MT 59802 eanderson@wgmgroup.com

Member Since: 2009

Central Director

Sean O'Callaghan, AICP, CFM

Gallatin County 

311 W. Main St. #108
Bozeman, MT 59715
(406) 582-3130 sean.ocallaghan@gallatin.mt.gov

Member Since: 2004

Eastern Director

Samantha Malenovsky, CFM

City of Miles City

PO Box 910
Miles City, MT. 59301
(406) 234-3493

Member Since: 2012

Western Director

Rob Livesay

Ravalli County

215 S. 4th St., Suite F
Hamilton, MT 59840
(406) 375-6530

Executive Director

Larry Schock, CFM

Regional Engineering Specialist Montana DNRC

2705 Spurgin Rd. Bldg C
Missoula, MT. 59806
(406) 542-5885

Original Member: 1998

DNRC Liaison

Traci Sears, CFM

NFIP Coordinator
Montana DNRC
Water Operations Bureau

1424 9th Ave.
Helena, MT. 59620
(406) 444-6654

Member Since: 2000

DES Liaison

Andrew Long

Montana DES

1956 Mt. Majo Street
Fort Harrison, MT 59636
(406) 324-4875

Member Since: 2019

Email Us

General Email: Benjamin.Fennelly@hdrinc.com 

Webmaster: sean.ocallaghan@gallatin.mt.gov

Conference Registration Questions: sean.ocallaghan@gallatin.mt.gov 


Get In Touch

Mailing Address:
PO Box 1305
Helena, MT 59624