Question: The longest river on the east coast has a tributary in Scott Township that is approximately how long?

Context paragraphs:
Kinney Run: Kinney Run, also known as Kinney's Run, is a tributary of the Susquehanna River in Scott Township and Bloomsburg, Columbia County, Pennsylvania, in the United States.  It is approximately 3.1 mi long.  Some of the first settlers to the Kinney Run area arrived in 1769.  There are a number of wetlands and one bog, which is called the Espy Bog, in the stream's watershed.

Susquehanna River: The Susquehanna River ( ; Lenape: Siskëwahane) is a major river located in the northeastern United States.  At 464 mi long, it is the longest river on the East Coast of the United States that drains into the Atlantic Ocean, via the Chesapeake Bay.  With its watershed, it is the 16th-largest river in the United States, and the longest river in the early 21st-century continental United States without commercial boat traffic.

Rush Brook: Rush Brook is a tributary of the Lackawanna River in Lackawanna County, Pennsylvania, in the United States.  It is approximately 5.1 mi long and flows through Greenfield Township, Scott Township, Carbondale Township, Mayfield, and Jermyn.  The watershed of the stream has an area of 6.01 sqmi .  The stream is not considered to be impaired and all but its lower reaches are mostly undisturbed.  However, Pennsylvania Route 107 is in its vicinity.  The stream begins on the Allegheny Plateau and flows through a water gap.  It is a perennial stream.

Kennedy Creek: Kennedy Creek is a tributary of South Branch Tunkhannock Creek in Lackawanna County, Pennsylvania, in the United States.  It is approximately 5.3 mi long and flows through Scott Township and North Abington Township.  The watershed of the creek has an area of 6.17 sqmi .  The creek is not designated as an impaired waterbody.  The surficial geology in its vicinity consists of Wisconsinan Till, alluvium, bedrock, and fill.

Leggetts Creek: Leggetts Creek (also known as Legget Creek, Leggett's Gap Creek, and Leggits Creek) is a tributary of the Lackawanna River in Lackawanna County, Pennsylvania, in the United States.  It is approximately 9.0 mi long and flows through Scott Township, South Abington Township, and Scranton.  The watershed of the creek has an area of 18.5 sqmi .  The creek has three named tributaries: Leach Creek, Clover Hill Creek, and Summit Lake Creek.  Leggetts Creek is considered to be impaired due to urban development problems, but is not affected by acid mine drainage.  The creek is fairly alkaline and is a perennial stream.  Its headwaters are in wetlands outside of the Lackawanna Valley and it flows through a water gap known as Leggetts Gap or The Notch.  Major lakes in the watershed include the Griffin Reservoir (which is used as a water supply), Summit Lake, and Maple Lake.  The creek is a source of flooding in South Abington Township.

Sultan Ahmad Shah II Bridge: Sultan Ahmad Shah II Bridge or Semantan Bridge is the longest highway bridge in the East Coast Expressway network.  It bridges the Pahang River in Pahang, Malaysia.  This 700-metre bridge was opened when the East Coast Expressway was built.  It crosses the Pahang River, the longest river in west Malaysia.  At the entrance of the bridge there are 2 elephant trunks which symbolize Pahang.  There also many colorful lights around this bridge.  This bridge was opened by Sultan of Pahang, Sultan Ahmad Shah on 22 April 2004.  Near the bridge is the Temerloh Rest and Service Area "(both bound)".

Pennsylvania Route 438: Pennsylvania Route 438 (PA 438) is a 10.1 mi state highway located in Lackawanna County, Pennsylvania.  The western terminus is at U.S. Route 6 (US 6)/US 11 to the north of Dalton in LaPlume.  The eastern terminus is at PA 247 in the Scott Township community of Montdale.  PA 438 is a two-lane undivided road that passes through rural land in the northern part of Lackawanna County.  The route intersects PA 407 in Wallsville and Interstate 81 (I-81) and PA 524 in Scott Township.  The eastern portion of the route was designated as part of PA 247 in 1928, which was paved by 1930s.  The western portion of the route was paved in the 1930s.  PA 247 was shifted to the east in the 1940s, leaving the former alignment unnumbered.  PA 438 was designated in April 1961 as part of construction of I-81 through northeastern Pennsylvania so that the latter road would interchange with numbered routes through Lackawanna County.

Hull Creek (Lackawanna River): Hull Creek (also known as Hulls Creek) is a tributary of the Lackawanna River in Lackawanna County, Pennsylvania, in the United States.  It is approximately 4.1 mi long and flows through Scott Township, Blakely, and Dickson City.  The watershed of the creek has an area of 3.22 sqmi .  The creek is considered to be impaired by habitat alteration.  It is a perennial stream, but experiences some flow loss.  A waterfall system known as the Blakely Falls are on the creek, in a post-glacial valley.  It also flows through a deep water gap.  Channelization work was done on the creek in 1975 by the Pennsylvania Department of Environmental Resources, which has had the effect of reducing flooding.

South Branch Tunkhannock Creek: South Branch Tunkhannock Creek is a tributary of Tunkhannock Creek in Lackawanna County and Wyoming County, in Pennsylvania, in the United States.  It is approximately 22.5 mi long and flows through Scott Township, Benton Township, North Abington Township, and La Plume Township in Lackawanna County and Clinton Township, Factoryville, and Tunkhannock Township in Wyoming County.  The watershed of the creek has an area of 98.3 sqmi .  The creek's named tributaries include Trout Brook, Ackerly Creek, and Kennedy Creek.  South Branch Tunkhannock Creek is not designated as an impaired waterbody and has relatively good water quality.

Central Columbia School District: The Central Columbia School District is a small, rural, public school district that serves the Borough of Orangeville and Mifflin Township, Mount Pleasant Township, North Centre Township, Orange Township, Scott Township and South Centre Township in Columbia County, Pennsylvania.  The District is one of the 500 public school districts of Pennsylvania.  Central Columbia School District encompasses approximately 77 sqmi .  According to 2000 federal census data, the District served a resident population of 14,107.  By 2010, the District's population increased to 14,833 people.  The educational attainment levels for the Central Columbia School District population (25 years old and over) were 89.9% high school graduates and 23% college graduates.

Supporting paragraphs: Kinney Run Susquehanna River
Answer: 3.1 mi long