What is App Name: Alfa Engineering | Civil, Structural & MEP?

App Name: Alfa Engineering | Civil, Structural & MEP manages 5 data types including texas counties.

How do I check natural hazard risks for my property in Texas?

Start with FEMA's National Risk Index for your county's overall hazard profile, then use the ASCE Hazard Tool to get site-specific design wind speeds and seismic parameters for your address. Wildfire-prone areas can be checked on the Texas Wildfire Risk Assessment Portal. For construction and insurance decisions, ALFA Engineering can professionally interpret these results for your exact parcel.

What is the FEMA National Risk Index?

The National Risk Index is FEMA's official dataset rating every U.S. county and census tract for 18 natural hazards — including hurricane, tornado, hail, strong wind, earthquake, wildfire, drought, and flooding — based on expected annual loss, social vulnerability, and community resilience. It's a baseline comparison tool, not a site-specific design source.

What design wind speed applies to my property in Texas?

Enter your address in the ASCE Hazard Tool (ascehazardtool.org). It returns the ASCE 7-22 design wind speed for your location — roughly 115–130 mph inland and 140–160+ mph along the Texas coast. This speed drives the structural design of your roof, walls, and connections.

Do I need a TDI windstorm inspection for my Texas property?

If your property is in a Tier 1 coastal county (or parts of Tier 2) and you want TWIA windstorm insurance, new construction, alterations, and roof work generally must be designed, inspected, and certified to TDI windstorm requirements. ALFA Engineering provides TDI windstorm design and inspection services for these areas.

Is earthquake risk a concern for buildings in Texas?

Most of Texas is a low-seismicity region, but induced earthquakes near the Permian Basin and fault zones around the Dallas–Fort Worth area have placed some counties under ASCE 7 seismic design requirements. The ASCE Hazard Tool shows the seismic design category for your address; we verify whether your structure needs seismic detailing.

How do hazards like drought and expansive clay soils damage Texas homes?

Texas drought cycles cause expansive clay soils to shrink and swell, which is the leading cause of slab foundation movement, cracking, and sticking doors statewide. Proper foundation design, site drainage, and moisture control are the standard defenses — our foundation inspections assess exactly this mechanism.

Hazard Tools

What Natural Hazards Threaten Your Property?

Wind, hail, wildfire, earthquakes, drought — every Texas site carries a different hazard profile. Use these free official tools to check your property's risks by address or county, then let our licensed engineers turn the data into a safe, insurable, permit-ready design.

Step by Step

How to check your property's hazard profile

Four free official sources cover nearly every hazard question a Texas property owner has.

Look up your county on FEMA's National Risk Index

Open the National Risk Index and search your Texas county. You'll see its relative risk rating for each of 18 natural hazards, from hurricane winds to wildfire.

Get your site's design hazards by address

Enter your address in the ASCE Hazard Tool to find the design wind speed, tornado, seismic, and ice parameters that apply to your exact location.

Check location-specific hazards

Near the Gulf? Check the Sea Level Rise Viewer. Near wildlands? Check TxWRAP. Track current drought at the U.S. Drought Monitor.

Have a licensed engineer interpret the results

Design wind speed, flood zone, and soil conditions together determine what your project needs. ALFA Engineering turns these numbers into a buildable, permit-ready design.

Already know you're in a flood zone? Flood hazards have their own dedicated FEMA lookup — search your address on the FEMA flood map.

Official Resources

Free hazard tools we recommend

Government and professional-society tools only — we point our clients to these every week.

FEMA National Risk Index

FEMA's official mapping application rating every U.S. county for 18 natural hazards — hurricane, tornado, hail, earthquake, wildfire, flood and more — with expected annual loss and community resilience scores.

18 hazards by county

ASCE Hazard Tool

The official ASCE 7 hazard lookup. Enter any address to get the design wind speed, tornado speed, seismic, ground snow, and ice loads engineers use to design your structure.

Search by address

Texas Wildfire Risk Assessment Portal (TxWRAP)

Texas A&M Forest Service's free tool for searching your address and viewing wildfire risk, burn probability, and defensible-space resources for your area.

Wildfire risk by address

NOAA Sea Level Rise Viewer

NOAA's coastal viewer showing projected sea level rise, inundation frequency, and marsh migration for the Texas Gulf Coast — relevant for coastal and low-lying properties.

Coastal Texas

USGS Earthquake Hazards Program

The USGS official earthquake map — real-time quake activity, fault data, and seismic design considerations, including induced-seismicity zones in parts of Texas.

Earthquake data

U.S. Drought Monitor

The official weekly drought map updated every Thursday by USDA, NOAA, and the University of Nebraska — tracks drought intensity by county across Texas.

Drought by county

Know Your Region

Texas hazards and what they mean for your project

Where a hazard shows up decides how your building must be designed.

Hazard	Where in Texas	What It Means for You
Hurricane / Strong Wind	Gulf Coast & South Texas	Design wind speeds of 140+ mph in coastal counties. Structures may require TDI windstorm compliance for insurance — new construction, additions, and roof replacements are all affected.
Tornado & Hail	North & Central Texas	ASCE 7 tornado and hail exposure affects roof design, cladding selection, and safe-room options. Insurance premiums reflect hail history in the Metroplex and beyond.
Earthquake	West Texas & DFW area	Induced seismicity zones around the Permian Basin and historic faulting near Dallas mean some structures need ASCE 7 seismic design checks.
Wildfire	Hill Country & rural Texas	Wildland-urban interface properties need defensible space, ignition-resistant materials, and in some areas fire-wise site planning.
Coastal Flooding & Sea Level Rise	Gulf Coast & bay areas	Storm surge zones and rising sea levels add elevation, foundation, and floodplain requirements. Combine with a FEMA flood zone check before building.
Drought & Expansive Soils	Statewide (especially Central TX)	Drought cycles shrink and swell clay soils — the #1 cause of Texas foundation movement. Foundation design and drainage must account for active soil zones.

How We Help

Hazard data you can build on

We convert hazard maps into engineering solutions Texas jurisdictions actually accept.

Windstorm Design & TDI Inspections

We design structures to TDI windstorm requirements in the designated catastrophe area along the Texas coast and provide the inspections your project needs for TWIA coverage.

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Structural Retrofit & Strengthening

Older buildings that predate modern wind, seismic, and hail requirements can be evaluated and retrofitted to current standards — often without a full rebuild.

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Foundation & Expansive Soil Evaluation

Drought-driven soil movement cracks foundations across Texas. Our foundation inspections identify the cause, severity, and a cost-effective repair path.

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Floodplain & Drainage Design

Hazard maps are only the start — we design the drainage, detention, and elevation strategies that keep hazard-exposed sites safe, insurable, and permit-ready.

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Common Questions

Hazard questions Texans ask us

Need your property's hazards checked by a licensed engineer?

Send us your address — we'll review the wind, seismic, wildfire, and soil conditions that shape your project before you spend a dollar on design.