HomeMy WebLinkAbout02 - Section 1 Inventory - Century Plan - Airport Plan Element June 19981.0 INVENTORY
1.1 Airport Background
1.1.1 Location
Georgetown Municipal Airport (GMA) is located three miles north of the City of Georgetown,
Texas, near Interstate Highway 35. Georgetown is the County Seat of Williamson County. It is 25 miles
north of Austin, 186 miles south of Dallas, and 190 miles northwest of Houston.
The airport occupies a 640 acre site, located on the west side of Airport Road and the north side of
Lakeway Drive. Residential developments, Air Country Estates, Sanaloma Estates, Serenada Country,
and Sun City Georgetown are located north and northwest of the airport. The Riata Trails and Golden
Oaks tracts are located west and south of the airport.
1.1.2 General
The original airfield that became GMA was constructed in 1943, under the provisions of Public
Law 135, 77th Congress, Title 11 and a city council resolution dated February 9, 1942. It was used as a US
Navy Auxiliary Field. The airport was also used by US Navy ROTC in part of their training program.
The general configuration of the airport has remained the same. However, over the years,
lighting, paving and structures have been improved.
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• In FY 1969 runway and taxiway resurfacing was done with a $12,500 grant from the Texas
Aeronautics Commission (TAC).
• The city limits were extended by annexation in 1976, to include the city -owned airport.
• A severe tornado demolished hangars in 1974 and the Federal Government furnished
approximately $90,000 of Federal Disaster Assistance Funds to rebuild them.
• In FY 1978 a non - directional beacon (NDB) was installed with $3,420 in state funds.
• An airport master plan was prepared in FY 1979 with $27,160 in FAA funds.
• In FY 1980, $50,000 of TAC funds were used to pave taxiways, access roads to hangars,
construction of a parking apron and installation of security fencing.
• In FY 1982, a Medium Intensity Runway Lighting (MIRL) system was installed on
Runway 18 -36 with $40,000 in state funds.
• In FY 1983 Runway 18 -36 and its associated taxiways received a seal coat and were restriped
with $125,000 of state funds.
• In 1987 a Terminal Area Plan was prepared using City funds. The cost of this study was
$5,000.
• The apron terminal area was expanded by 15,000 square yards and Clear Zone land was
acquired with $649,500 in FAA funds in FY 1987.
• In FY 1988, Runway 18 -36 was reconstructed and Taxiway A and C were overlaid, with
$500,000 in FAA funds.
• In FY 1990, using $600,000 of federal funds, the City acquired 3.24 acres in the Runway 29
Runway Protection Zone (RPZ) and cleared obstructions. The RPZ was previously referred
to as the Clear Zone.
• In FY 1991, Lakeway Drive was relocated, Runway 36 was extended by 900 -feet (ft) to the
south and marked. The existing MIRL was also extended to the full length of the runway.
The taxiway parallel to Runway 18 -36 was extended to match the runway length and taxiway
reflectors were installed. Game resistant fencing was installed adjacent to the airfield to
prevent airfield incursions by game. The total cost of the project was $1,282,000. Federal,
state and local funds were used in a 90 -5 -5 ratio.
• In FY 1995 Runway 11 -29 was reconstructed (75 ft wide by 4,100 ft long) and a MIRL
system was installed. This same project added Runway End Identification Lights (REILs) to
Runway 18 and provided for various other visual aid improvements. The total cost of the
project was $622,000. It was funded with federal, state and local funds with a 90 -5 -5 ratio.
• In FY 1995 the state provided an economic development grant on a 50150 basis with the City.
The grant was used to construct a roadway, water line and electric utilities to serve new
hangar sites. This total project cost was $139,500.
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r 1.2 Airport Users
There are currently 133 aircraft based at the airport: 109 single engine, 12 multi- engine piston
and 12 turboprops or turbojets. The airport manager has identified the following as corporate airport
users:
• Caterpillar Corporation
• Community State Bank
• Draeger Motor Corporation
• Southwestern University
• Sun City Georgetown
• Taylor Bedding
0 Southern Union Gas
• Texas Crushed Stone
• Turquoise Sky Corporation
• W. P. Hobby
1.3 Airside Facilities
1.3.1 Runways
GMA has two runways. The primary runway, referred to as Runway 18 -36, is on a north -south
heading (1801-360 °) and is 5,000 ft in length with a width of 100 ft. The other runway is on a northwest -
southwest heading (110° -290 °) and is 4,100 ft long and 75 ft wide. Both runways are asphalt paved (see
Figure 1 -1).
1.3.2 Taxiways
Both Runway 18 -36 and 11 -29 are served by full length taxiway systems. The taxiway system
serving Runway 18 -36 consists of Taxiway A which extends from the end of Runway 18 to the terminal
apron where an apron edge taxilane crosses the apron to Taxiway C which extends from the southern
apron edge across Runway 11 -29 to Runway 36. Runway 11 -29 is served by Taxiway B which extends
from the end of Runway 11 in a course parallel to the runway to a point approximately 1,900 feet to the
southeast at which point it turns to the east, crosses Runway 18 -36 and meets the west apron edge.
Traffic wishing to access Runway 29 then continues along the apron edge taxilane in a southwest
direction and enters Taxiway A which extends from the southwest apron edge to the end of Runway 29.
A connector
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ESPEY, HUSTON & ASSOCIATES, INC. GEORGETOWN MUNICIPAL
ENGINEERING & ENVIRONMENTAL CONSULTANTS AIRPORT LAYOUT
206 WILD BASIN RD. STE. 1300 - P.O. BOX 519
AUSTIN, TEXAS - 78767 - (512) 327-6840 EXHIBIT 1-1
taxiway between C and runway 18 -36 is located approximately 900 feet north of the end of Runway 36.
A hangar access taxiway connects the general aviation hangars to Taxiway A.
1.3.3 Aprons
In addition to aprons associated with FBO and general aviation hangars, a general aviation apron
approximately 30,000 square yard (SY) in area is located between the terminal building and the taxiways.
13.4 Airfield Lighting
Runway 18 -36 is lighted by a MIRL system. The lights are controlled primarily by aphotocell
which activates the lights at dusk and turns them off at dawn. During the hours of darkness the intensity
of the lights may be varied by radio control. Runway 11 -29 also has a MIRL but it is activated only by
radio control and only during periods when the Runway 18 -36 lights are activated. The intensity of the
Runway 11 -29 lights may also be varied with a radio control system.
Both ends of Runway 18 -36 are equipped with REILs. All taxiways have retroreflective
centerline markers.
1.3.5 Approach Aids
A Non - Directional Beacon (NDB) is located at the northwest comer of the field. It transmits on
frequency 332, var. 07E with the ID "GUO" in Morse Code. A Global Positioning System (GPS) overlay
to the NDB Approach is also published.
Runway 18 has a Pulsating Light Approach Slope Indicator (PLASI) to the left of the runway
end. Runway 36 has a four -box Precision Approach Path Indicator (PAPI) to the left of the runway end.
A segmented circle and lighted windcone are located near the intersection of Runways 18 -36 and 11 -29.
The PAPI radio control is activated upon demand. A clear -green rotating beacon is located between the
terminal building and Airport Road.
Aircraft landing at GMA may request advisories on UNICOM 123.0 Mhz. In addition there is a
remote transmitter /receiver (RTRO) on the airport which provides clearance delivery from Austin's
Robert Mueller Municipal Airport (RNM A) Air Control Tower (ATCT). The RTRO operates on a
frequency of 121.1.
1.4 Landside Facilities
1.4.1 Tiedowns
The general aviation apron has 49 tiedowns, sixteen of which are rented. Additional tiedowns are
available within various FBO leasehold areas.
1.4.2 Hangars
The demand for hangars remains high at GMA. The waiting list for T- hangar rental currently has
some 50 unfulfilled requests. There are fourteen privately owned and eight City owned free - standing
hangars. The City owns five T- hangar buildings with a total capacity of 50 aircraft.
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1.4.3 Fuel
The City owns a 12,000 gallon (gal) double - walled steel, fiberglass lined underground tank which
is used for Jet A fuel. It was installed in 1991. In addition, the city owns a 10,000 gal steel underground
tank used for AvGas. That tank was installed in the 1980s. The tanks have cathodic protection and
monitor wells. Lines to the fuel dispenser were replaced in 1987 with double - walled fiberglass pipes.
Gantt Aviation owns a 10,000 gal underground steel tank which is used for AvGas. That tank was
installed in the 1980s. Two of the FBOs maintain fuel trucks for their own use.
1.4.4 Terminal Building
The administration/terminal building is located at the general aviation apron. The terminal is
open from 7:00 AM until dusk, seven days per week. It features a lounge with Color TV, DUATS
Computer (for pilot weather briefings and flight planning), and a pilot's work room with Visual Flight
Rule (VFR) wall chart and a DTN weather radar terminal.
Fia
1.4.5 Weather Station
An Automated Weather Observation Station (AWOS) is located adjacent to the Runway 18 partial
parallel taxiway. The AWOS operates on a frequency of 132.425.
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1.5 Perimeter Fencin
Until perimeter fencing was installed, deer encroachment was a serious safety hazard and the
potential for aircraft/deer collisions was significant. Additionally, pedestrians and vehicles frequently
used the Aircraft Operations Area (AOA) as a shortcut to and from residential areas adjacent to the airport
thus presenting an additional potential for airfield incursions.
Fencing was installed in FY 1991. An eight -foot chain link fence runs along Airport Road and
other parts of the perimeter where vehicular or pedestrian traffic could be expected. Game resistant
fencing was installed around the airfield area. A cattle guard spans the airport entrance.
1.6 Ground Access to the Airport
From IH 35, vehicles turn west on Lakeway Drive;. then north on Airport Road and west on
Terminal Drive to access the airport. Terminal Drive is a two -lane asphalt paved road which runs between
Airport Road and the terminal building parking area. Service Drive runs north from Terminal Drive and
connects to Stearman and Corsair which serve the general aviation and FBO hangars. Hangar Drive runs
north from Terminal Drive and serves the general aviation hangars. A new roadway runs south from
Terminal Drive to an area for new hangars adjacent to the general aviation apron.
1.7 Siena e
Informational signs direct motorists on IH 35 to the Lakeway drive interchange. Smaller signs
indicate the route to the airport.
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Attractively landscaped "Georgetown Municipal Airport" signs flank the entrance at Airport
Road and Terminal Drive. Informational signs indicate directions to the various airport tenants. The
signs are relatively small and are too close to intersections to permit smooth traffic flow. Regulatory
signs advise motorists that vehicle traffic is not permitted on taxiways. It is not immediately obvious to
visitors where roadways end and taxiways begin. Improved signage and pavement marking could
provide clarity.
1.8 Pollution Control Facilities
The primary pollution control facility at GMA is a combination water quality and detentionpond
which is currently being completed. This facility will capture stormwater runoff from that part of the
Terminal Area south of Terminal Drive and retain it for a period of time so that suspended solids can
settle out. This facility also provides an opportunity to capture fuel spills, etc. and reduce the potential for
downstream contamination.
In addition to the water quality pond, a waste oil collection station is located near Hangar A. This
facility provides a convenient location for the safe disposal of used oils and lubricants from the various
maintenance activities located on GMA.
1.9 Socio- Economic Information
1.9.1 Population
As previously stated, Williamson County is, to a great extent, the area that is served by the
airport. While some county residents may utilize services at other airports, GMA serves the vast majority
of the county's aviation demand.
The population of Williamson County is discussed and presented in The State of Georgetown:
1995. Historic data are reported from the Texas Department of Health and the Texas Comptroller's
Office, and the source of population projections is the Texas Water Development Board (TWDB).
are:
The TWDB's population projection are divided by race /ethnicity and migration scenarios. These
• Scenario 0.00 assumes immigration in and out migration are equal, resulting in growth
only through natural increase.
• Scenario 0.50 is the approximate average of the zero (0.00) and 1980 -1900 (1.00)
Scenarios. It assumes net migration rates one -half of those in the 1980s.
• Scenario 1.00 assumes a continuity in trends in the age, sex, and race /ethnicity net
migration rates of the 1980s.
• Scenario 0.50 projects that in the twenty year period from 1995 to the year 2015,
population in Williamson County will increase by slightly less than 53 percent which
yields an annual growth rate of about 2 percent. Scenario 0.0 projects a decline in
population which cannot be supported by current information and trends in population
growth. Scenario 1.00 projects a 144 percent population growth rate in the 1995 to 2015
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period on an annual rate of about 4.5 percent. Historical information on population and
the three growth scenarios are shown in Table 1 -1. While the TWDB identifies Scenario
0.50 as the most likely planning
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TABLE 1 -1
WILLIAMSON COUNTY
POPULATION PROJECTIONS
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; HISTORICAL
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E .SCENARIO 0.50 '
i SCENARIO'1.00,
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Sources: Historical - Texas Department of Health and Texas Comptroller's Office
Projections - Texas Water Development Board
[1] Interpolated from 2010 and 2020 data scenario for projected population in Williamson County,
both Scenario 0.50 and 1.00 will be examined in the following aviation demand analysis.
1.9.2 Per Capita Income
Per capita income for Texas and each county is provided by the U. S. Bureau of Economic
Analysis. These data have been considered in the forecasting process. While they are interesting and
may be useful in other contexts, they are limited for purposes of this analysis in that no forecasts of the
data are available upon which to project relationships with aviation data. Additionally, the correlation
between per capita income in Williamson County and based aircraft at GMA is not suitable for projection
purposes. Per capita income statistics are, therefore, provided in Table 1 -2 for information only.
TABLE 1 -2
PER CAPITA INCOME
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