Dam Breach Inundation Map 2/3/1 Kansas City aytown iver Bend I - 435 Sugar Creek Independence ) Unity Village Lee's Summit Blue Springs Grain Valley Lake Lotawana Sibley Buckner Levasy STATE HWY 21 U S HWY 24 I - 29 I - 435 I - 29 STATE HWY H SIBLEY ST STATE HWY 78 I - 67 TUMAN D 23D ST I - 435 I - 35 STATE HWY FF U S HWY 71 Oak Grove NOLAND D STATE HWY H I - 435 U S HWY 71 I - 435 U S HWY 5 Grandview Greenwood Lone Jack STATE HWY 7 STATE HWY 15 147TH ST Jackson County, Missouri JACKSON_MO2373 Note: Actual areas inundated will depend on the actual dam failure criteria and may differ from the areas shown. Due to limitations, methods, assumptions, and procedures used to develope the inundation area, the map should only be used for evacuation and emergency purposes. Water esources Center P.O. Box 176 Jefferson City, MO 6521
Explanation Sheet Explanation of Maps The following maps indicate the areas which are predicted to be inundated during the occurance of a sunny day breach of the dam. The pool elevation at failure is assumed to be at the emergency spillway crest elevation or at the crest of the dam in the absence of an emergency spillway. Use of Maps The following maps provide a baseline for evaluation of existing emergency action plans and environmental hazards downstream of the regulated structure. Definition of Terms Pool Elevation- Water level in the reservoir. Dam Crest- The lowest elevation measured along the dam crest. Spillway Crest- The lowest elevation measured along the crest of the spillway. Arrival Time- Elapsed time between the breach initiation and the time that water levels first begin to rise at any given point. Assumed Conditions of Flooding The pool elevation at failure is assumed to be at the emergency spillway crest elevation or at the crest of the dam in the absence of an emergency spillway. The assumed overtopping erodes a section of the dam resulting in a dangerous and quick release of water. For the hydraulic analysis flow initiation is required and therefore a baseflow of water has been included in the analysis. Dam Facts Breach Parameters (Froehlich, 1995) ID: MO_2373 Side slopes: 1.4:1 County: JACKSON Bottom width: 127 Location: S5, T48 N, 31 W Bottom elevation: 782 Height of Dam: 75' Breach formation time:.6 hr Storage Capacity (Normal Pool): 445 ac-ft (East lake only) Pool Elevation at Failure: 858.9 Tributary: East Fork of May Brook Pool Volume at Failure: 6448 ac-ft Lake Area: 133 acres Date of Aerial Photo: August 8, 29 Explanation Sheet 1 of 1
r sou Mis 1 Miles cifi i Pa c Wa tc o Flood Arrival Times 1 of 1 E AT T S HW Y 78 2. hr ST 23D 1.5 hr ob lf M Gu ile an do h io 1. hr Illi no is Ce nt ra l o Illin is ral t n Ce.5 hr U S HWY 4.5 STATE HWY 291.25 STATE HWY 291 $ eservoir Cross Sections oads
TH E N L ST J ST I ST S H ST E 51 TE 52ND ST AV 52ND Y ST NE W DO B ST N D MEGA PH EL P 51 ST EY D D Flow Directio n LEES S UMMIT D VELIE D LAKProject EWO ID:OJACKSON_MO2373 D BLVD 5 1, 2, Detail Sheet 1 of 4 D OO LA KE W $ eservoir oads BL VD MAYBOOK D HADING D
39TH ST LE 5 1, Detail Sheet 2 of 4 2, JA N 291 SO CK STATE HWY $ Breach Analysis MALLDam CIC oads D D AN TL A HE OLD 71 BY PASS I - 7 Y4 D EW VI FAI D UPPE WOOD 51ST CT OD WAY WO LAK E Di re c IE B EN Flo w E G tio n VELIE D 47 TH 48TH ST U SH WY 4 VALLEY VIEW D HW GLENVIEW AVE E 5TH T US E AV CLIFF D FALL D D A LS SE D
oads 28TH TE SW EE5 1, T B IVA IA D D Detail Sheet 3 of 4 2, D MIZE D NECESSAY D $ 28Inundation TH ST Zone EUEKA D SELSA D lf Gu bil Mo 39TH ST ea O nd hio D i on ect D ir JACKSON D MIZE w Flo SIOUX CT D SIOUX AVE D MIZE D
CENSHAW D TUMAN D Flow Direction ANSON PL ANSON D MCHENY D VAN MAELE D oads 12TH TE $ 5 1, 2, Detail Sheet 4 of 4 13TH ST 23D ST NECESSAY D
MEGAN D 51 ST 52ND ST DOWNEY AVE 51 TE 52ND ST B ST H ST I ST J ST L ST THENEY D PHELPS D VELIE D LEES SUMMIT D Flow Direction HADING D eservoir oads $ 5 1, 2, LAKEWOOD BLVD Topo Map 1 of 4 MAYBOOK D LAKEWOOD BLVD
oads MALL CICLE 39TH ST $ 5 1, 2, STATE HWY 291 Topo Map 2 of 4 JACKSON D FALL D CLIFF D 5TH TE OLD 71 BYPASS U S HWY 4 FAIVIEW D GLENVIEW AVE 47TH D U S HWY 4 SELSA D 48TH ST HEATLAND AVE VALLEY VIEW D 51ST CT VELIE D Flow Direction LAKEWOOD WAY UPPE WOOD D GEENBIE
IVA D 28TH ST oads 28TH TE SWEET BIA D $ 5 1, 2, Topo Map NECESSAY D 3 of 4 SIOUX AVE D MIZE D D MIZE D EUEKA D D MIZE D SIOUX CT SELSA D Flow Direction JACKSON D Gulf Mobile and Ohio 39TH ST
CENSHAW D TUMAN D Flow Direction ANSON PL ANSON D MCHENY D VAN MAELE D oads 12TH TE $ 5 1, 2, Topo Map 4 of 4 13TH ST 23D ST NECESSAY D