PORT-AU-PRINCE, Haiti (Jan. 31, 2010) Seabees assigned to Amphibious Construction Battalion (ACB) 2 off-load an Improved Navy Lighterage System causeway at a beach in Port-au-Prince, Haiti. ACB-2 is supporting Operation Unified Response following a 7.0 magnitude earthquake that caused severe damage in Haiti Jan. 12. 10HE0131-N-9643W-373(USN)