The S/V Irvington is a high-speed, twin-screw, aluminum hydrofoil-supported catamaran. It operates out of the Irvington Site Office in Irvington, AL. Its mission is to conduct hydrographic surveys and channel examinations along the Gulf Intracoastal Waterway (GIWW) from mile 33.7 at Little Rigolets, LA, to Pensacola, FL. Federal navigation projects include East Pearl River, MS; Mobile River, AL; Escambia River, FL; Bayou Chico, FL; NAS Pensacola ship turning basin; the ship channels into Gulfport, Biloxi, and Pascagoula, MS; the ship channels into Mobile, AL; the ship channels into Pensacola, FL; and the open bays and passes that provide natural channel linkages.

Built:                                     2003 by Kvichak Marine Industries, Inc. Seattle,
                                              WA 

Length x Breadth x Depth: 54' x 20' x 9'-8.5"

Draft:                                    5'

Displacement:                     32.8 long tons

Max Speed:                         32 knots

Main Engines:                     2 MTU Series 60, 825 hp @ 2,350 rpm

Generators:                         2 Northern Lights, 12 kW

Survey Equipment:            Reson SeaBat 8101 Multi-beam sonar, Klein 3000
                                             Sidescan sonar, 2 recessed hull dual-frequency
                                             transducers, Odom MkII Echosounder, Velocity 
                                             Profiler, Trimble GPS, HGS and Hypack software

Original Cost:                     $2,421,743