USCGC Sangamon, or CGC Sangamon, is a 65-foot Ouachita-class river buoy tender. It serves to maintain maritime navigational aids (ATON) and provides search-and-rescue support (SAR). It operates along the Illinois River, between Grafton, Illinois (mile marker 0) and Joliet, Illinois (mile marker 291.1). [1] The vessel has been stationed in East Peoria, Illinois since 2005 and is under Sector Upper Mississippi River. [2] The vessel is named for the Sangamon River in Illinois.
Built by Gibbs Gas Engine Co. in Jacksonville, Florida and launched in 1962, the vessel has a length of 65 feet (20 m), a beam of 21 feet (6.4 m), and a shallow 5-foot (1.5 m) draft. [3] It is powered by two diesel engines, generating roughly 600 horsepower (450 kW) for a top speed of roughly 10 knots (19 km/h; 12 mph). [4] The ship has a nearly 3,100- nautical-mile (5,700 km; 3,600 mi) operational range. It is crewed by 12 to 19 crew members, depending on mission type. [4] The ships shallow draft allows it to operate in multiple types of river conditions, including shallow areas that would otherwise be unreachable. The vessel pushes a 90-foot (27 m) ATON barge, which houses all necessary equipment and tools, including a crane, needed for maintaining navigation buoys. [5] Its hull is strengthened to maintain safety in icy conditions.
Sangamon is responsible for regularly replacing, inspecting, repairing, and reposition buoys and river markers. During high-water seasons, the crew readily inspects and replaces damaged buoys, often times under serious conditions. In 2016, the Illinois River experienced torrential floods and dangerously high-water levels. [6] The Sangamon was deployed to quickly re-establish navigation aids that had been ripped from their anchors by the floods, operating in dangerous currents and debris-filled waterways. During ice seasons, the vessel serves as a shallow draft monitor, breaking and shifting river ice to protect life and property. [7] Crews regularly rotate seasonally, with regular training for all potential crew. [8] The vessel also participates in local river safety events, assisting in public outreach and river traffic guidance for all ages.