Wednesday, February 6, 2019

Flood hazard zones in the vicinity of Alamo Ranch

The map below shows the currently mapped flood hazard zones in the vicinity of the Alamo Ranch area of far northwest San Antonio.  The effective date for these maps is September 2010.  There has been significant construction of homes, commercial buildings, and drainage infrastructure since that time.

The definition of the "100-year" flooding event that is the basis for the construction of the 1.0% Annual Chance Flood Hazard Zone is very likely to change based on increased frequency of major rainfall events in recent years. However, no information was found regarding plans for updates to these maps.

These maps and others for any area of interest around San Antonio are available via the interactive map viewer at the address below:

Saturday, February 2, 2019

Alamo Ranch area neighborhoods with homes in the 100-year floodplains

Five neighborhoods in the vicinity of Alamo Ranch have houses located in 1% Annual Chance Flood Hazard zones.

Outside of Loop 1604:
Silver Oaks

Inside of Loop 1604:
Culebra Crossing
Northwest Crossing
Pipers Meadow

Construction in these neighborhoods began during the years 1973 to 2005.  The Effective Flood Insurance Rate Maps (FIRM) covering these areas are dated September 29, 2010. 

Map 1: Silver Oaks / Silver Pointe Area

Map 2: Northwest Crossing Area

Map 3: Pipers Meadow Area

Map 4: Creekside / Culebra Crossing Area

Map 5: Stillwater Ranch Area

This neighborhood does not have any houses in the 100-yr floodplains. However, it has a significant number of home lots immediately adjacent to the 1.0% Annual Chance Flood Hazard zones associated with Culebra Creek.

Maps of interest to Western Bexar County Alliance Group

Map 1:  City of San Antonio Proposed Annexation based on Lackland AFB perimeter

The large '2017' area was subsequently reduced to a perimeter based on a certain distance from Lackland Air Force Base.  The modified area was put to the vote in November 2018 and was overwhelmingly defeated.

Two Options were on the ballot:

Option 1: Approve annexation of the area by the City. This Option received 16.02% of the vote.

Option 2: No annexation, but the City reserves the right to impose land use regulations in the area to "protect the military missions".  This Option received 83.93% of the vote.

Map 2:  City of San Antonio Master Development Plan land use summary

This map has been compiled by the City from various sources.  Outside of the city limits it does not represent any official City zoning or future plan.  

Of particular interest to Alamo Ranch area residents is the plan for the corridor along Wiseman Boulevard between Loop 1604 and Talley Road.  The map shows the entire zone as "Commercial/Multifamily".  The inclusion of the 100% Residential Fronterra at Westpointe.and other nearby neighborhoods in this zone shows the map to be outdated.

Map 3:  Outlines of major Alamo Ranch area Homeowner's Associations

Map 4:  Neighborhoods included in the Alamo Ranch Community Association (ARCA)

The Alamo Ranch Community Association includes the thirteen neighborhoods listed below:

1.  Preserve at Alamo Ranch
2.  Estates at Arroyo Crossing
3.  DeZavala Grant
4.  Cameron Grant
5.  McMullen Grant
6.  Woodbury Grant
7.  Edwards Grant
8.  Harrison Grant
9.  Travis Ridge
10. Austin Grant
11. Williams Grant
12. Burnet Grant
13. DeWitt Grant

 Map 5:  Neighborhoods included in the Alamo Ranch Homeowner's Association (ARHOA)

The Alamo Ranch Homeowner's Association includes the seven neighborhoods listed below:

1.  Summit at Alamo Ranch I
2.  Summit at Alamo Ranch II
3.  Summit at Alamo Ranch III
4.  Lonestar at Alamo Ranch
5.  Terraces at Alamo Ranch
6.  Trails at Alamo Ranch
7.  Hills at Alamo Ranch

Map 6:  Neighborhoods included in the Alamo Ranch Property Owners Association, Inc.

151 Annexation Area Property Owners/HOAs Information 

Only properties located SOUTH of Alamo Ranch Pkwy and NORTH OF WISEMAN are part of the ALAMO RANCH PROPERTY OWNERS ASSOCIATION, INC. (aka “the Master Association”, 8360 E Via De Ventura, Ste 100, Scottsdale, AZ 85258 with ~4,100 homes TOTAL at buildout by 2024) -

Hill Country Retreat HOA (~1,900 Homes at buildout) and
Alamo Ranch Community Association, Inc. (~1,200 Homes at buildout)

Austin Grant
Burnet Grant
Cameron Grant
De Zavala Grant
Dewitt Grant
Edwards Grant
McMullen Grant
Williams Grant
Woodbury Grant
Travis Ridge at Alamo Ranch

Builders: Centex Homes, Highland, Lennar, M/I Homes, Pulte Homes, Wilshire Homes & Village Builders

Association Management Services, Inc. (aka AMS), 1600 NE Loop 410, Ste 202, San Antonio, TX 78209 (210-829-7202) manages the HOAs for -

The Preserve (located along Alamo Pkwy on either side of Cottonwood Way) ~500 homes at buildout) and
The Estates at Arroyo Crossing (Eastside of Lonestar Pkwy) ~100 homes at buildout)

Builders: David Weekley & Highland

Spectrum Association Management, 17319 San Pedro Ave, Ste 318, San Antonio, TX 78232 (210-494-0659) manages the HOA for –

Santa Maria at Alamo Ranch (Eastside of Lonestar Pkwy) (~400 homes at buildout)

Builders: Lennar, M/I Homes & Wilshire