Yarm is a small town and civil parish in the borough of Stockton-on-Tees

Stockton-on-Tees (borough)

Stockton-on-Tees is a unitary authority area and borough in the Tees Valley area of north east England, with a population in 2001 of 178,408, rising to 185,880 in 2005 estimates....

 in North East

North East England

North East England is one of the nine official regions of England. It covers Northumberland, County Durham, Tyne and Wear, and Teesside . The only cities in the region are Durham, Newcastle upon Tyne and Sunderland...

 England. It is on the south bank of the River Tees

River Tees

The River Tees is in Northern England. It rises on the eastern slope of Cross Fell in the North Pennines, and flows eastwards for 85 miles to reach the North Sea between Hartlepool and Redcar.-Geography:...

 and for ceremonial purposes is in North Yorkshire

North Yorkshire

North Yorkshire is a non-metropolitan or shire county located in the Yorkshire and the Humber region of England, and a ceremonial county primarily in that region but partly in North East England. Created in 1974 by the Local Government Act 1972 it covers an area of , making it the largest...

. The bridge at Yarm marked the farthest upstream crossing point of tidal section of the River Tees until the Tees Barrage

Tees Barrage

The Tees Barrage is a barrage across the River Tees just upriver of Blue House Point in the borough of Stockton-on-Tees in North East of England and is used to control the flow of the river, preventing flooding and the effects of tidal change....

, which was opened in 1995 in Stockton, made that section no longer tidal. As the lowest down stream bridge Yarm bridge was superseded by the five stone arch toll bridge opened in Stockton on Tees in 1771 and the Middlesbrough Transporter bridge opened in 1911.