Small Aircraft
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 87; Flight Crew Total 17943; Flight Crew Type 475
Situational Awareness
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Runway
General None Reported / Taken
Airport; Human Factors
During a local recreational flight; I inadvertently landed at the Decatur Airport for the purpose of practice landings. After departing the airport area I discovered Runway 35 was closed for maintenance.  No workers or personnel were present on the runway and no responses were given to me on the CTAF. Also; the Runway 17/35 was not marked closed with an X nor was the runway closure mentioned on the AWOS.
GA Pilot reported landing on a closed runway at LUD airport; noting that the runway was not marked with an X and the closure was not on the AWOS.