Lets check the river stages.

I scrolled down to Smithland and Paducah and checked the plus sign changes. The river rose two foot at Smithland and that with an already big river (high river elevation). No alarm just be prepared to drive an alternate route in some locals in Western Kentucky.
These gauges displayed at this blog are examples and not accurate. Click the link above to get up to date information.

        OHIO RIVER          HYDROLOGIC CONDITIONS         COMM. TOWS

             DATE                DAM     WEATHER    WAIT  LOCK   AVG
MILE  LOCK/DAM  TIME   GAGE/CHANGE  COND  TEMP  PRECIP AB BL UP DN DELAY

919  SMITHLAN 110228  U13.9  +1.4  999.0  A53   0.67RA  0  0  7  4    0:10
            0600    L33.7  +2.0 ALLOUT  W

935  PADUCAH  110228   35.3  +2.1         A
              0900                      W
939  LOCK 52  110228  U37.2  +1.9  -----  A53   0.46TS  0  0 12  4    0:00

Smithland is a new Concrete Dam and Lock 52 is and old Wicket Dam