27
If your referring the English Grand National at Aintree. Then it's 30
The Grand National has 30 fences to be jumped in the race & it's run over a distance of 4 miles 4 furlongs (7,242 metres) at Aintree Racecourse, Liverpool
The Answer is really an English answer. In the UK our National Horse race is The Grand National and it contains 30 fences.Therefore the answer is 30 Fences in the Grand National
16 fences on the grand national course
The Chair and the water jump.
There are 16 fences on the National Course, the horses jump all 16 on the first circuit and 14 on the second, a total of 30 jumps for the full steeplechase course.
there are sixteen fences on the Aintree course
The Grand Canyon.
16 Fences in the Grand National. Although some are jumped twice, making a race of 30 jumps in total.
Oddly enough, it is called "Grand Canyon National Park".
The name of the road that the horses cross at the Grand National is known as the "Melling Road."