44' - This represents the level at which, with no additional protection, the Valley Park levee would be overtopped at the upper end of the flood wall.
42' - Near this height, the intersection of Big Bend Road and Dougherty Ferry Road begins flooding.
38.8' - Interstate 44 is closed near this height. During the December 2015 flood, this highway was closed from Bowles Avenue in Valley Park west to Missouri Route 109 exit in Eureka.
38.3' - Near this height, Missouri Route 30 (Gravois Road) must be closed in both directions in St. Louis County.
38' - Railroad bridge just downstream of the Highway 141 bridge begins to flood.
37.8' - MODOT must take preventative action to keep I-44 lanes open west of Highway 141.
36' - Water begins covering the BNSF rails at this height.
35' - The final flood gate through the BNSF railroad path is closed at this height.
34' - Close Gravois Road at Ware Street and at Water Street. This impact level may vary depending the crest difference of the Mississippi River at St. Louis from 30.8 ft, the March 2008 crest.
33' - Old Highway 141 is closed at Gravois Road and at Gravois Bluffs Blvd. This impact level may vary depending on the crest difference of the Mississippi River at St. Louis from 30.8 ft, the March 2008 crest.
30' - Allen Road at Old Highway 141 is closed. This impact level may vary depending the crest difference of the Mississippi River at St. Louis from 30.8 ft, the March 2008 crest.
29' - In Fenton, the following roads are closed at this level: all of Yarnell Road, Riverside Drive at Wolfner Drive, Fabricator Drive at Headland Drive, Soccer Park Road at the truck stop, Rudder Road at Fabick Drive, and Larkin Williams Road at Ferry Street.
28' - The flood gate at Vance Road in Valley Park is closed at this height.
27' - The flood gate at St. Louis Avenue in Valley Park is closed at this height. Near this height, Vance Road begins to flood from just outside of the flood gate to Highland Village and Soccer Park Road from Cassens Drive to Yarnell Road begins to flood.
26.6' - The northbound lanes of Highway 141 at I-44 will be closed near this height.
26' - Near this height, Smizer Mill Road and Meramec Station Road begin flooding near their intersection.
25.9' - The southbound lanes of Highway 141 at I-44 will be closed near this height.
25' - Near this height, the north end of Yarnell Road north of the Soccer Park Road intersection begins to flood. At this level, houses along Rock Alva Drive (next to Tapawingo Golf Club) start to flood. Also, Fenton Greenway Park is flooded.
24' - Water reaches top of boat ramp at Valley Park Public Fishing Access. Also, the Anheuser-Busch Soccer Park begins flooding near this height.
23.5' - Riverfront parking area of Minnie Ha Ha Park across the river from Fenton begins flooding near this height.
21.9' - Yarnell Road is closed at Riverside Drive. Larkin Williams is closed at Riverside Golf Club entrance. In Valley Park...Tree Court Industrial Road begins flooding between Marshall Road and Scarlet Oak Boulevard. Also...the golf course at Family Golf and Learning Center and the Kirkwood Athletic Association ball fields begin flooding near this height.
21' - Water enters the SW corner of Larkin Williams and Yarnell Road intersection through a stormwater grate. In Valley Park...Marshall Road begins to flood between Tree Court Industrial Road and Timberview Road.
19.5' - Buder Park and the recreation park at the water plant floods.
19' - The south riverward side of Marshall Road begins to flood.
12' - Sluice gates at 5th Street, 3rd Street, and Fishpot Creek at Union Pacific Railway tracks must be closed.