Poly-Turf was a brand of
artificial turf
Artificial turf is a surface of synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. However, it is now being used on residential lawns and commer ...
in the early 1970s, manufactured by American Biltrite of
Wellesley, Massachusetts
Wellesley () is a New England town, town in Norfolk County, Massachusetts, Norfolk County, Massachusetts, United States. Wellesley is part of Greater Boston. The population was 29,550 at the time of the 2020 census. Wellesley College, Babson Col ...
. It was the first specifically designed for
American football
American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with ...
, with a patented layered structure which included a "shock pad" between the
artificial grass
Artificial turf is a surface of synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. However, it is now being used on residential lawns and commerc ...
and the asphalt sub-surface. It used
polypropylene
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.
Polypropylene
belongs to the group of polyolefins and ...
for its artificial grass blades, rather than the
nylon
Nylon is a generic designation for a family of synthetic polymers composed of polyamides ( repeating units linked by amide links).The polyamides may be aliphatic or semi-aromatic.
Nylon is a silk-like thermoplastic, generally made from petro ...
used in
AstroTurf
AstroTurf is an American subsidiary of SportGroup that produces artificial turf for playing surfaces in sports. The original AstroTurf product was a short-pile synthetic turf invented in 1965 by Monsanto. Since the early 2000s, AstroTurf has m ...
and
3M's Tartan Turf.
History in Miami
In the late 1960s, the natural grass surface at the
Orange Bowl
The Orange Bowl is an annual American college football bowl game played in the Miami metropolitan area. It has been played annually since January 1, 1935, making it, along with the Sugar Bowl and the Sun Bowl, the second-oldest bowl game in th ...
in
Miami
Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a East Coast of the United States, coastal metropolis and the County seat, county seat of Miami-Dade County, Florida, Miami-Dade C ...
was constantly in poor condition,
primarily due to heavy usage; 34 games were scheduled there during the 1968 football season.
Poly-Turf was installed at the city-owned stadium in
1970
Events
January
* January 1 – Unix time epoch reached at 00:00:00 UTC.
* January 5 – The 7.1 Tonghai earthquake shakes Tonghai County, Yunnan province, China, with a maximum Mercalli intensity scale, Mercalli intensity of X (''Extrem ...
,
and utilized for six seasons. The stadium was used for both
college
A college (Latin: ''collegium'') is an educational institution or a constituent part of one. A college may be a degree-awarding tertiary educational institution, a part of a collegiate or federal university, an institution offering ...
and
professional
A professional is a member of a profession or any person who works in a specified professional activity. The term also describes the standards of education and training that prepare members of the profession with the particular knowledge and skil ...
football, primarily by the
University of Miami Hurricanes and the
Miami Dolphins
The Miami Dolphins are a professional American football team based in the Miami metropolitan area. They compete in the National Football League (NFL) as a member team of the league's American Football Conference (AFC) East division. The team pla ...
of the
NFL. It also hosted the eponymous New Year's Day college
bowl game
In North America, a bowl game is one of a number of post-season college football games that are primarily played by teams belonging to the NCAA's Division I Football Bowl Subdivision (FBS). For most of its history, the Division I Bowl Subdivis ...
,
Super Bowl
The Super Bowl is the annual final playoff game of the National Football League (NFL) to determine the league champion. It has served as the final game of every NFL season since 1966, replacing the NFL Championship Game. Since 2022, the game ...
games, and
high school football
High school football (french: football au lycée) is gridiron football played by high school teams in the United States and Canada. It ranks among the most popular interscholastic sports in both countries, but its popularity is declining, part ...
.
The
University of Nebraska Cornhuskers
The Nebraska Cornhuskers (often abbreviated to Huskers) are the intercollegiate athletic teams that represent the University of Nebraska–Lincoln. The university is a member of the Big Ten Conference, and the Cornhuskers compete in NCAA Divisi ...
won the first three Orange Bowl games played on Poly-Turf, which included two national championships. The first Super Bowl played on artificial turf was played on Poly-Turf in the Orange Bowl in January 1971, when the
Baltimore Colts
The Baltimore Colts were a professional American football team that played in Baltimore from its founding in 1953 to 1984. The team now plays in Indianapolis, as the Indianapolis Colts. The team was named for Baltimore's history of horse breed ...
defeated the
Dallas Cowboys
The Dallas Cowboys are a professional American football team based in the Dallas–Fort Worth metroplex. The Cowboys compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) East divisi ...
16-13 in
Super Bowl V
Super Bowl V was an American football game played between the American Football Conference (AFC) champion Baltimore Colts and the National Football Conference (NFC) champion Dallas Cowboys to determine the National Football League (NFL) champio ...
. The next Super Bowl at the stadium was the final game played on Poly-Turf in Miami;
Super Bowl X
Super Bowl X was an American football game between the National Football Conference (NFC) champion Dallas Cowboys and the American Football Conference (AFC) champion Pittsburgh Steelers to decide the National Football League (NFL) champion for t ...
in January 1976.
Its flaws received additional media exposure the week prior to the game,
and Dolphins receiver
Nat Moore
Nat or NAT may refer to:
Computing
* Network address translation (NAT), in computer networking
Organizations
* National Actors Theatre, New York City, U.S.
* National AIDS trust, a British charity
* National Archives of Thailand
* National As ...
documented them in a local article.
The longer polypropylene blades of Poly-Turf tended to mat down
and become very slick under hot & sunny conditions.
Other NFL owners were skeptical of the brand before the first regular season games were played in 1970.
[ The field was replaced after two seasons,] before the Dolphins' 1972
Within the context of Coordinated Universal Time (UTC) it was the longest year ever, as two leap seconds were added during this 366-day year, an event which has not since been repeated. (If its start and end are defined using Solar time, me ...
undefeated season. It was replaced by another Poly-Turf surface. While it had similar problems, it lasted longer than the first installation, and was used for four years. Over just six years, both installations deteriorated rapidly and some football players suffered an increasing number of leg and ankle injuries; some players claimed to trip over seams. Prior to the second installation in 1972, the city did not consult with the Dolphins about the replacement; Dolphins' head coach Don Shula preferred a different brand, either AstroTurf or Tartan Turf. The field discolored from green to blue due to the severe UV nature of the Miami sun.[
]
Return to natural grass
The city removed the Poly-Turf in 1976 and re-installed natural grass, a special type known as Prescription Athletic Turf (PAT), which remained until the stadium's closure in early 2008. As late as December 1975, the city had planned to retain the Poly-Turf for the 1976 season,[ but that decision was changed a few weeks later, prior to the Super Bowl.]
The Orange Bowl became the first major football venue to replace its artificial turf with natural grass, and it was the third NFL stadium to install Prescription Athletic Turf; Denver's Mile High Stadium
Mile High Stadium (originally Bears Stadium until 1968) was an outdoor multi-purpose stadium located in Denver, Colorado from 1948 to 2001.
The stadium was built in 1948 to accommodate the Denver Bears baseball team, which was a member of the ...
and Washington's RFK Stadium installed PAT fields a year earlier in the spring of 1975.[
]
Other installations
Other NFL stadiums which installed Poly-Turf included Schaefer Stadium
Foxboro Stadium, originally Schaefer Stadium and later Sullivan Stadium, was an outdoor stadium in the New England region of the United States, located in Foxborough, Massachusetts. It opened in 1971 New England Patriots season, 1971 and served ...
, opened in 1971 for the New England Patriots
The New England Patriots are a professional American football team based in the Greater Boston area. They compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) AFC East, East divisio ...
,[ and ]Tulane Stadium
Tulane Stadium was an outdoor football stadium that stood in New Orleans from 1926 to 1980. It was officially the Third Tulane Stadium and replaced the "Second Tulane Stadium", which was located where the Telephone Exchange Building is now. Th ...
in , home of the Saints
In religious belief, a saint is a person who is recognized as having an exceptional degree of holiness
Sacred describes something that is dedicated or set apart for the service or worship of a deity; is considered worthy of spiritual res ...
, Tulane University
Tulane University, officially the Tulane University of Louisiana, is a private university, private research university in New Orleans, Louisiana. Founded as the Medical College of Louisiana in 1834 by seven young medical doctors, it turned into ...
, and the Sugar Bowl
The Sugar Bowl is an annual American college football bowl game played in New Orleans, Louisiana. Played annually since January 1, 1935, it is tied with the Orange Bowl and Sun Bowl as the second-oldest bowl games in the country, surpassed onl ...
. Notable college stadiums included Legion Field
Legion Field is an outdoor stadium in the southeastern United States in Birmingham, Alabama, primarily designed to be used as a venue for American football, but occasionally used for other large outdoor events. Opened in 1927, it is named in ho ...
in Birmingham, Alabama
Birmingham ( ) is a city in the north central region of the U.S. state of Alabama. Birmingham is the seat of Jefferson County, Alabama's most populous county. As of the 2021 census estimates, Birmingham had a population of 197,575, down 1% fr ...
and Alumni Stadium
Alumni Stadium is a football stadium located on the lower campus of Boston College in Chestnut Hill, Massachusetts, approximately west of downtown Boston. It is the home of the Boston College Eagles. Its present seating capacity is 44,500. Offic ...
at Boston College
Boston College (BC) is a private Jesuit research university in Chestnut Hill, Massachusetts. Founded in 1863, the university has more than 9,300 full-time undergraduates and nearly 5,000 graduate students. Although Boston College is classifie ...
.
American Biltrite ceased production of Poly-Turf in 1973; 3M stopped the manufacture of its Tartan Turf in 1974, citing rising oil prices in light of the 1973 oil embargo.[ This left AstroTurf as the only major manufacturer of artificial turf (with only minor competition along the way) until FieldTurf was started in the late 1990s."Living with Artificial Grass"]
''American Journal of Sports Medicine'' vol. 18, no. 4, 1990-07
References
{{reflist, 2
Artificial turf