1. US Army Corps of Engineers BUILDING STRONG ® Mississippi Valley Division New Madrid Earthquake MS River Navigation Scenario

2. UNCLASSIFIED B UILDING S TRONG 2 New Madrid Earthquake Bridge Video As of 14 Apr 2015

3. UNCLASSIFIED B UILDING S TRONG 3 Restoration of Mississippi River Navigation There are over 2 dozen Mississippi River crossings carrying roads, railroads, natural gas lines, and utilities As of 17 Apr 2015 PIR Designation Bridge NameHighwaysCoordinates MRB01 Greenville Bridge (Greenville MS)US 72, US 27833°17′14″N91°09′15″W MRB02 Helena Bridge (Helena/West Helena ARUS 4934°29′48″N90°35′17″W MRB03 Memphis & Arkansas Bridge (Memphis TN) I-55, US 61, US 64, US 71, US 79 35°07′42″N90°04′36″W MRB04 Frisco Bridge (Memphis TN)BNSF Railway35°07′43″N90°04′35″W MRB05 Harahan Bridge (Memphis TN)Union Pacific Railroad35°07′45″N90°04′33″W MRB06 Hernando de Soto Bridge (Memphis TN)I-4035°09′10″N90°03′50″W MRB07 Caruthersville Bridge (Dyersburg & Caruthersville)I-155, US 41236°06′54″N89°36′47″W MRB08 Cairo Miss River Bridge (Cairo IL)US 60, US 6236°58′43″N89°08′52″W MRB09 Cairo I-57 Bridge (Cairo IL-Charleston MO)I-5737°01′23″N89°12′42″W MRB10 Thebes Bridge (Thebes IL) St. Louis SW & Missouri Pacific Railway 37°13′00″N89°28′01″W MRB11 Bill Emerson Memorial Bridge (Cape Girardeau MO)MO 34, MO 74, IL 14637°17′43″N89°30′57″W MRB13 Grand Tower Pipeline Bridge (Grand Tower IL)Natural Gas37°38′31″N89°31′03″W MRB14 Chester Bridge (Chester IL)MO 51, IL 15037°54′11″N89°50′11″W MRB15 Jefferson Barracks Bridge (St. Louis County MO)I-255 / US 5038°29′14″N90°16′38″W MRB16 MacArthur Bridge (St. Louis)Railroad Assoc. of St. Louis38°36′53″N90°11′01″W MRB17 Poplar Street Bridge (St. Louis MO)I-55 / I-64 / US 4038°37′05″N90°10′59″W MRB18 Eads Bridge (St. Louis MO)St. Louis MetroLink38°37′45″N90°10′47″W MRB19 Martin Luther King Bridge (St. Louis)Route 79938°37′52″N90°10′46″W MRB20 Stan Musial Veterans Memorial Bridge (St. Louis MO)I-7038°38′40″N90°10′42″W MRB21 McKinley Bridge (St. Louis MO)US 6638°39′54″N90°10′58″W MRB22 Merchants Bridge (St. Louis MO)Railroad Assoc. of St. Louis38°40′29″N90°11′10″W MRB23 Chain of Rocks Bridge (St. Louis MO)US 6638°45′38″N90°10′35″W MRB24 New Chain of Rocks Bridge (St. Louis MO)I-27038°45′53″N90°10′25″W MRB25 Clark Bridge (Alton IL)US 6738°52′56″N90°10′44″W

4. UNCLASSIFIED B UILDING S TRONG 4 For today’s scenario, consider the obstructions shown As of 17 Apr 2015 Restoration of Mississippi River Navigation

5. UNCLASSIFIED B UILDING S TRONG 5 Questions to Guide Discussions  How does the number and locations of obstructions impact our standard operating procedures  What gaps does this scenario present in our current authorities  What additional stakeholders need to be engaged in resorting Mississippi River navigation.  What are your recommendations for change As of 14 Apr 2015

6. UNCLASSIFIED B UILDING S TRONG 6 ESSAYONS