For Insurance Companies

FEMA Floodplain
Evaluations &
Flood Zone Removal.

All our work with insurance companies is focused on FEMA floodplains — with the goal of reducing insurance costs, removing flood zone designations, or mitigating flood zone exposure for your policyholders.

How We Help

Reducing Flood Insurance
Costs Through Engineering

McMahon LaRue Associates works directly with insurance companies and their clients to evaluate FEMA flood zone designations and determine whether properties can be removed or reclassified. Our licensed engineers and surveyors have decades of experience with FEMA's Letter of Map Amendment (LOMA) and Letter of Map Revision (LOMR) processes.

When a property has been incorrectly mapped into a Special Flood Hazard Area — or when engineered drainage improvements have reduced actual flood risk — we prepare the technical documentation needed to get the designation changed. The result is reduced or eliminated flood insurance requirements for your policyholder.

Elevation Certificates

FEMA-compliant elevation certificates prepared by licensed surveyors for flood insurance rating and zone challenges.

Letter of Map Amendment (LOMA)

Documentation to remove a structure or lot from a Special Flood Hazard Area when it has been incorrectly mapped.

Letter of Map Revision (LOMR)

Engineering support for formal map revisions following drainage improvements or new hydrologic analysis.

Flood Zone Determinations

Field survey and HEC-RAS hydraulic modeling to establish accurate base flood elevations for disputed properties.

Pre-Purchase Evaluations

Rapid assessments of flood risk and potential for zone removal before a property sale closes.

Licensed Surveyors

FEMA-Compliant Elevation Certificates

Our Professional Land Surveyors prepare elevation certificates that meet FEMA standards — required for all LOMA submissions and flood insurance policy ratings.

Hydraulic Modeling

HEC-RAS 2D Analysis

We perform advanced hydraulic modeling to establish or challenge base flood elevations — the technical foundation for any successful flood zone map revision.

30 Years Local

Deep Regional Knowledge

Three decades of projects across Monroe, Wayne, Ontario, and Genesee counties means we know the local flood maps, drainage systems, and FEMA regional office processes.

Related Services
Get Started

Need a flood zone
evaluation for a
policyholder?

Call or email us to discuss the property. We'll let you know quickly whether a LOMA or LOMR is feasible and what the process looks like.