You searched for: Place Alongside utility road following west side of old levee, railroad bed between road & dredged canal, west side of IL Route 99, 0.7 mile northwest of junction with IL Route 104, at Brown County line, west of Meredosia. Illinois River floodplain. Remove constraint Place: Alongside utility road following west side of old levee, railroad bed between road & dredged canal, west side of IL Route 99, 0.7 mile northwest of junction with IL Route 104, at Brown County line, west of Meredosia. Illinois River floodplain.