The Maritsa, Meriç or Evros (Bulgarian: Марица , "Marica"; Ancient Greek: Ἕβρος , "Hébros"; Modern Greek: Έβρος Evros; Latin: "Hebrus" ; Romanized Thracian: "Evgos" or "Ebros"; Turkish: "Meriç" ) is, with a length of 480 km , the longest river that runs solely in the interior of the Balkans.
 It has its origin in the Rila Mountains in Western Bulgaria, flowing southeast between the Balkan and Rhodope Mountains, past Plovdiv and Parvomay (where the Mechka and the Kayaliyka join it) to Edirne, Turkey.
 East of Svilengrad, Bulgaria, the river flows eastwards, forming the border between Bulgaria (on the north bank) and Greece (on the south bank), and then between Turkey and Greece.
 At Edirne, the river flows through Turkish territory on both banks, then turns towards the south and forms the border between Greece on the west bank and Turkey on the east bank to the Aegean Sea.
 Turkey was given a small sector on the west bank opposite the city of Edirne.
 The river enters the Aegean Sea near Enez, where it forms a delta.
 The Tundzha is its chief tributary; the Arda is another one.
 The lower course of the Maritsa/Evros forms part of the Bulgarian-Greek border and most of the Greek-Turkish border.
 The upper Maritsa valley is a principal east-west route in Bulgaria.
 The unnavigable river is used for power production and irrigation.
Wadi al-Far'a (Arabic name) or Nahal Tirza (Hebrew name) is a stream in the northern West Bank that empties into the Jordan River south of Damia Bridge (Arabic: Jisr Damiya).
 It is the largest stream in the West Bank.
 Wadi al-Far'a is located in the rugged area of the West Bank and cuts east through the Jordan Valley, passing through the Palestinian village of Wadi al-Far'a.
 The Tirzah Reservoir is used to collect the floodwater of Wadi al-Far'a before it flows into the Jordan River.
The West Springfield Generating Station, also known by its corporate name EP Energy Massachusetts, LLC, is a fossil-fuel-fired power plant located in West Springfield, Massachusetts.
 The station is a "peaking" facility, meaning that it primarily operates during peak electrical demand.
 The facility consists of two 49-megawatt (MW) combustion turbine generators (Units 1 and 2) fueled by natural gas or ultra low-sulphur diesel fuel, one 18 MW jet turbine (Unit 10) that is fueled by kerosene, and one 107 MW simple-cycle steam boiler unit (Unit 3) burning no. 6 fuel oil, ULSD or natural gas.
 The station also has a small auxiliary boiler for process and building heat and an emergency back-up generator.
 The station's management also operates several small remote power generators including two other jet turbines identical to West Springfield 10 which are the Doreen Street unit in Pittsfield, Massachusetts, and Woodland Road unit in Lee, Massachusetts as well as five run-of-river hydroelectric power stations located on the Chicopee and Deerfield Rivers.
West Springfield High School, in Massachusetts, United States, is the city of West Springfield's high school.
 It is located near West Springfield Middle School and John R. Fausey Elementary, one of the city's five elementary schools.
 The school's mascot is the terrier.
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for 406 mi through four U.S. states.
 It rises at the U.S. border with Quebec, Canada, and discharges at Long Island Sound.
 Its watershed encompasses five U.S. states and one Canadian province, 11260 sqmi via 148 tributaries, 38 of which are major rivers.
 It produces 70% of Long Island Sound's fresh water, discharging at 19600 cuft per second.
West Springfield is a suburb of Springfield, Massachusetts located on the west bank of Connecticut River.
Route 159 is a state highway connecting the Hartford and Springfield areas in the U.S. states of Connecticut and Massachusetts.
 It begins as the northern extension of Main Street in Hartford and proceeds northward along the west bank of the Connecticut River towards Agawam, Massachusetts.
 The route ends at the junction of Route 147 and Route 75 in Agawam center just south of the West Springfield city line.
 The route was originally designated as U.S. Route 5A in 1932 and was renumbered to its modern designation in 1968.
West Springfield High School is a public high school located in Springfield in Fairfax County, Virginia, at 6100 Rolling Road, and is part of the Fairfax County Public Schools system.
 West Springfield (often referred to as WSHS) enrolls students from grades 9–12, offers the Advanced Placement program and currently enrolls over 2,400 students.
Hampden Bank (NASDAQ: HBNK , formerly Hampden Savings Bank) is one of two banks headquartered in Springfield, Massachusetts, (the other - NuVo Bank - was opened in Metro Center in 2009.)
 Established in 1852, Hampden Bank is a full-service bank that serves people and businesses in Hampden County, Massachusetts, and in surrounding communities.
 As of 2011, Hampden Bank has ten office locations in Springfield, Agawam, Longmeadow, West Springfield, Wilbraham, at Tower Square in Metro Center Springfield, and in Indian Orchard.
The Demerara Harbour Bridge is a 6074 ft long floating toll bridge.
 It was commissioned on 2 July 1978.
 The bridge crosses the Demerara River 4 mi south of the Guyanese capital Georgetown, from Peter's Hall, East Bank Demerara to Schoon Ord, West Bank Demerara, connecting Demerara-Mahaica (Region 4) with Essequibo Islands-West Demerara (Region 3) on the west bank.
 There is a pedestrian footwalk.
 A raised section lets small vessels pass under.
 A retractor span lets large vessels pass.
 Construction of the Demerara Harbour Bridge began on 29 May 1976.
 Construction assistance was provided by the British Government, but the basic design was by a Guyanese, Capt. John Patrick Coghlan.
 The bridge was only designed to last 10 years, yet it is still going strong.
 Tolls are collected only in one direction of travel even though the bridge handles one lane of traffic in each direction.
 Traffic going west to east pays no toll.

Question: West Springfield is a suburb located on the west bank of a river that flows in which direction ?
Answer: southward