| Business | Phone |
| Us Army Corps Of Engineers 3700 Army Depot Rd, Savanna 61074 | (815) 273-7883 |
| Us Fish & Wildlife 3159 Crim Dr, Savanna 61074 | (815) 273-3184 |
| Us Fish & Wildlife Dept 3700 Army Depot Rd, Savanna 61074 | (815) 273-3184 |
| Us Interior Dept 3rd & Madison St Basementamp;, Savanna 61074 | (815) 273-2732 |