APPENDIX A STRUCTURE DESCRIPTIONS AND RATING CURVES

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1 APPENDIX A STRUCTURE DESCRIPTIONS AND RATING CURVES Kissimmee River Vol December 005 Version Draft 4

2 Structure 57 (S-57) Structure 58 (S-58) Structure 59 (S-59) Structure 60 (S-60) Structure 6 (S-6) Structure 6 (S-6) Structure 63 (S-63) Structure 63A (S-63A) Structure 65 (S-65) Structure 65A (S-65A) Structure 65B (S-65B) Structure 65C (S-65C) Structure 65D (S-65D) Structure 65E (S-65E) Structure 68 (S-68) Structure 70 (S-70) Structure 7 (S-7) Structure 7 (S-7) Structure 75 (S-75) Structure 8 (S-8) Structure 83 (S-83) Structure 84 (S-84) APPENDIX A PROJECT STRUCTURE DESCRIPTIONS TABLE OF CONTENTS Tables Page No. A-S57- A-S58- A-S59- A-S60- A-S6- A-S6- A-S63- A-S63A- A-S65- A-S65A- A-S65B- A-S65C- A-S65D- A-S65E- A-S68- A-S70- A-S7- A-S7- A-S75- A-S8- A-S83- A-S84- Page No. Structure 57 Hydraulic Design Data A-S57- Structure 58 Hydraulic Design Data A-S58- Structure 59 Hydraulic Design Data A-S59- Structure 60 Hydraulic Design Data A-S60- Structure 6 Hydraulic Design Data A-S6- Structure 6 Hydraulic Design Data A-S6- Structure 63 Hydraulic Design Data A-S63- Structure 63A Hydraulic Design Data A-S63A- Structure 65 Hydraulic Design Data A-S65- Structure 65A Hydraulic Design Data A-S65A- Structure 65B Hydraulic Design Data A-S65B- Kissimmee River Vol A-i December 005 Version Draft 4

3 Tables (Continued) Page No. 3 Structure 65C Hydraulic Design Data A-S65C- 4 Structure 65D Hydraulic Design Data A-S65D- 5 Structure 65E Hydraulic Design Data A-S65E- 6 Structure 68 Hydraulic Design Data A-S68-7 Structure 70 Hydraulic Design Data A-S70-8 Structure 7 Hydraulic Design Data A-S7-9 Structure 7 Hydraulic Design Data A-S7-0 Structure 75 Hydraulic Design Data A-S75- Structure 8 Hydraulic Design Data A-S8- Structure 83 Hydraulic Design Data A-S83-3 Structure 84 Hydraulic Design Data A-S Rating Curves 6 7 Page No. 8 Structure 57 Controlled Flow A-S Uncontrolled Flow A-S Structure 58 Discharge Rating Curve A-S58-3 Structure 59 Submerged Controlled Flow A-S59-4 Submerged Uncontrolled Flow A-S MAGOs A-S Structure 60 Controlled Flow A-S Submerged Controlled Flow A-S Uncontrolled Flow A-S MAGO Curve A-S Structure 6 Submerged Controlled Flow A-S6-4 9 Submerged Uncontrolled Flow A-S MAGO Curve A-S6-6 3 Structure 6 Controlled Flow A-S6-4 3 Submerged Controlled Flow A-S Uncontrolled Flow A-S MAGO Curve A-S Structure 63 Controlled Discharge A-S Submerged Controlled Flow A-S Uncontrolled Flow A-S MAGO Curve A-S Structure 63A Controlled Flow A-S63A-4 40 Submerged Controlled Flow A-S63A-5 4 Uncontrolled Flow A-S63A-6 4 MAGO Curve A-S63A-7 Kissimmee River Vol A-ii December 005 Version Draft 4

4 Rating Curves (Continued) Structure 65 Controlled Flow A-S65-4 Rating Curve for Submerged Conditions A-S65-5 Uncontrolled Flow A-S65-6 MAGO Curve A-S65-7 Structure 65A Controlled Flow A-S65A-4 Uncontrolled Flow A-S65A-5 Submerged Controlled Flow A-S65A-6 MAGOs A-S65A-7 Structure 65B Controlled Flow A-S65B-5 Uncontrolled Flow A-S65B-6 Submerged Controlled Flow A-S65B-7 MAGOs A-S65B-8 West Tieback Levee Culvert (S-65BX-) A-S65B-9 Structure 65C Controlled Flow A-S65C-4 Uncontrolled A-S65C-5 Submerged Controlled Flow A-S65C-6 MAGOs A-S65C-7 Structure 65D Controlled Flow A-S65D-4 Uncontrolled Flow A-S65D-5 Submerged Controlled Flow A-S65D-6 MAGOs A-S65D-7 Structure 65E Free Controlled Flow - Six Gates A-S65E-4 Free Controlled Flow - One Gate A-S65E-5 Uncontrolled Flow A-S65E-6 Submerged Controlled Flow A-S65E-7 MAGOCurve A-S65E-8 Structure 68 Free Controlled Flow A-S68-4 Submerged Uncontrolled Flow A-S68-5 Submerged Controlled Flow A-S68-6 MAGOCurves A-S68-7 Structure 70 MAGOCurve A-S70-4 Structure 7 Free Controlled Flow A-S7-4 Submerged Uncontrolled Flow A-S7-5 Submerged Controlled Flow A-S7-6 MAGOs, Specific Cases A-S7-7 MAGOs, General Case A-S7-8 Structure 7 Submerged Controlled Flow A-S7-4 Submerged Uncontrolled Flow A-S7-5 MAGOs, Specific Cases A-S7-6 MAGOs, General Case A-S7-7 Kissimmee River Vol A-iii December 005 Version Draft 4

5 Rating Curves (Continued) Structure 75 MAGOs A-S75-4 Structure 8 Submerged Controlled Flow A-S8-4 Free Controlled Flow A-S8-5 Uncontrolled Flow A-S8-6 MAGOs A-S8-7 Structure 83 MAGOs A-S83-4 Structure 84 Submerged Controlled Flow A-S84-4 Free Controlled Flow A-S84-5 Uncontrolled Flow A-S84-6 MAGOs A-S84-7 Kissimmee River Vol A-iv December 005 Version Draft 4

6 S-57 STRUCTURE 57 Location S-57 is located in C-30, connecting Lakes Myrtle and Mary Jane, about 6,00 feet downstream from Lake Myrtle. Description S-57 is a double-barreled corrugated metal pipe (CMP) culvert, with discharge controlled by stem operated vertical lift gates. Operation of the gates is manually controlled in accordance with the seasonal operational criteria. Purpose The culvert structure is used to maintain scheduled stages in Lakes Myrtle, Preston, and Joel upstream from the structure; passes up to 30 percent of the standard project flood (SPF); and passes sufficient discharge during low-flow periods to satisfy irrigation demands downstream. Operation The culvert structure normally maintains seasonal water-control stages of from 60.0 to 6.0 ft., NGVD upstream from the structure, as shown on the regulation schedule. When the lake stage rises above schedule and above normal inflows are anticipated, releases up to design capacity of 70 cfs can be made. The gates should be opened gradually to allow tailwater stages to rise before large releases are made. During low-water periods, minimum releases will be made to satisfy irrigation demands and maintain navigation downstream. The discharge rating curve is found on Figure A-S57-. Hydraulic Design Data is found on page A-S57-. Maximum Head To meet structural and stability requirements, the maximum allowable hydrostatic head on the structure should not be allowed to exceed. ft., NGVD with a headwater elevation of 59.0 ft., NGVD, and a tailwater elevation of 56.8 ft., NGVD. Kissimmee River Vol A-S57- December 005 Version Draft 4

7 STRUCTURE 57 HYDRAULIC DESIGN DATA Type of Structure Culvert Location Canal C-30 Station Discharge (cfs) Design 70 Headwater Elevation Design 6.8 SPF 66.8 Optimum 60.0 to 6.0 Minimum 59.0 Tailwater Elevation Design 6.6 SPF 66.7 Optimum 59.0 to 6.0 Minimum 56.8 Culvert Number Size 54 in CMP Invert Elevation 5.5 Type of Control Slidegate Approximate Ground Elevation at Structure Protection Elevation 68.8 Notes: All elevations refer to feet, NGVD. Kissimmee River Vol A-S57- December 005 Version Draft 4

8 S-57 CONTROLLED FLOW Kissimmee River Vol A-S57- December 005 Version Draft 4

9 S-57 UNCONTROLLED FLOW Kissimmee River Vol A-S57-3 December 005 Version Draft 4

10 S-58 STRUCTURE 58 Location S-58 is located in C-3 which connects Lakes Trout and Joel, about 3,700 feet downstream from Trout Lake. Description S-58 is a double barreled CMP culvert with discharge controlled by stem operated vertical lift gates. Operation of the gates is manually controlled in accordance with the seasonal operational criteria. Purpose The culvert structure maintains water-control stages in C-3 and Lakes Alligator, Lizzie, Coon, Center, and Trout; passes up to 30 percent of the SPF; and passes sufficient discharge during low-flow periods to meet irrigation demands downstream. Operation During floods the culvert structure is used, together with S-60, to assist in regulating and maintaining water levels of from 6.0 ft. to 64.0 ft., NGVD, in the lake upstream form the structure, as shown on the regulation schedule. The design capacity of the structure is 60 cfs. The gates should be opened gradually to allow tailwater stages to rise before large releases are made. During low-water periods, minimum releases will be made to satisfy irrigation demands and maintain navigation downstream. Discharge-Rating Curves are found on Figure A-S58-. Hydraulic Design Data is found on page A-S58-. Maximum Head To meet structural and stability requirements, the maximum allowable hydrostatic head on the structure should not be allowed to exceed.0 ft., NGVD with a headwater elevation of 64.0 ft., NGVD and a tailwater elevation of 6.0 ft., NGVD. Kissimmee River Vol A-S58- December 005 Version Draft 4

11 STRUCTURE 58 HYDRAULIC DESIGN DATA Type of Structure Culvert Location Canal C-3 Station Discharge (cfs) Design 60 Headwater Elevation Design 64.8 SPF 67.4 Critical - Optimum 6.0 to 64.0 Minimum 60.4 Tailwater Elevation Design 63.0 SPF 66.7 Critical - Optimum 60.0 to 6.0 Minimum 59.0 Culvert Number Size 54 in CMP Invert Elevation 54.5 Type of Control Slidegate Riprap Upstream Channel Length (ft.) 0.0 Protection Elev Downstream Channel Length (ft.) 0.0 Protection Elev Protection Elevation 69.4 Notes: All elevations refer to feet, NGVD. Kissimmee River Vol A-S58- December 005 Version Draft 4

12 S-58 DISCHARGE RATING CURVE Kissimmee River Vol A-S58- December 005 Version Draft 4

13 S-59 STRUCTURE 59 (S-59) Location S-59 is located in C-3 between East Lake Tohopekaliga and Lake Tohopekaliga at the outlet of East Lake Tohopekaliga. Description S-59 is a reinforced concrete, gated spillway with discharge controlled by a vertical lift gate. Operation of the gate is manually controlled in accordance with seasonal operational criteria. Purpose S-59 is the outlet structure for East Lake Tohopekaliga. The spillway structure normally maintains desirable water-control stages in the lake upstream from the structure; passes up to 30 percent of the SPF without exceeding desirable stages; restricts discharges during floods to that which will not cause damaging velocities or stages downstream; and passes sufficient discharge during low-flow periods to maintain stages and satisfy irrigation demands. Operation The gate in the spillway should be operated to permit water levels in East Lake Tohopekaliga to fluctuate seasonally between 55 to 58 ft., NGVD, as shown on the regulation schedule. When the lake is within one-half foot of the schedule, forecasts should be made and releases initiated to return the lake to schedule within 5 days. When the lake stage is considerably above schedule and large inflows are anticipated, releases up to design capacity of 80 cfs can be made. To insure the safety of the structure, gate settings should never exceed the limits shown on the MAGO curves and be checked frequently to insure that design capacity of the structure or C-3 downstream is not exceeded. The gate should be opened gradually to allow tailwater stages to rise before large releases are made. During low-water periods, minimum release will be made to satisfy irrigation demands and maintain navigation downstream. Downstream Weir Downstream of S-59 a sheetpile weir was constructed to influence the tailwater of the structure. The crest of the weir is elevation ft., NGVD Maximum Head To meet structural and stability requirements, the maximum differential hydrostatic head on the structure should not be allowed to exceed 8 ft., NGVD when the headwater is below 6.8 ft., NGVD. If the headwater should ever exceed 6.8 ft., NGVD, the allowable differential head will be reduced. Kissimmee River Vol A-S59- December 005 Version Draft 4

14 STRUCTURE 59 HYDRAULIC DESIGN DATA Type of Structure Spillway Location Canal C-3 Station Discharge (cfs) Design 590 to 80 SPF 300 Headwater Elevation Design 55.8 to 57.5 SPF 6.8 Critical - Optimum 55.0 to 58.0 Minimum 53. Tailwater Elevation Design 55.3 to 56.9 SPF 6. Critical - Optimum 53.0 to 55.0 Minimum 50.0 Crest Shape Trapezoidal Elevation 49. Net Length (ft.) 8.0 Gates Number Width X Height (ft.) 8.9 X 8.0 Clearance Elevation 58.0 Stilling Basin Apron Elevation 48. Apron Length 0.0 X 8.0 End Still Elevation 48.6 Training Wall Elevation 56.9 Channel Section Side Slopes (vert. On horiz.) on Upstream Bottom Width & Elev Downstream Bottom Width & Elev Kissimmee River Vol A-S59- December 005 Version Draft 4

15 HYDRAULIC DESIGN DATA (CONTINUED) Riprap Upstream Channel Length (ft.) 0.0 Protection Elev. 6.0 Downstream Channel Length (ft.) 40.0 Protection Elev Approximate Ground Elevation at Structure 6+ Protection Elevation 64.8 Notes: All elevations refer to feet, NGVD. Kissimmee River Vol A-S59-3 December 005 Version Draft 4

16 S-59 SUBMERGED CONTROLLED FLOW Kissimmee River Vol A-S59-4 December 005 Version Draft 4

17 S-59 SUBMERGED UNCONTROLLED FLOW Kissimmee River Vol A-S59-5 December 005 Version Draft 4

18 S-59 MAXIMUM ALLOWABLE GATE OPENINGS Kissimmee River Vol A-S59-6 December 005 Version Draft 4

19 S-60 STRUCTURE 60 Location S-60 is located in C-33 between Lakes Alligator and Gentry about,500 feet upstream from S.R. and 3,700 feet downstream from Alligator Lake. Description S-60 is a reinforced concrete, gated spillway with discharge controlled by a stem operated, vertical lift gate. Operation of the gate is manually controlled in accordance with seasonal operational criteria. Purpose The spillway structure maintains desirable water-control stages in C-33 and Alligator Lake; passes up to 30 percent of the SPF without exceeding desirable stages; restricts discharge during floods to that which will not cause damaging velocities or stages downstream; and passes sufficient discharge during low-flow periods to maintain stages and satisfy irrigation demands downstream. Operation The spillway structure normally maintains a seasonal desirable water-control stage of 6.0 to 64.0 ft., NGVD, upstream from the structure, as shown on the regulation schedule. S-60 and S-58 both discharge from Alligator Lake, consequently discharges from both structures must be considered is establishing release schedules. When the lake is within one-half foot of schedule, forecasts should be made and releases initiated to return the lake to schedule within 5 days. When the lake stage is considerably above schedule and inflows are anticipated, releases up to design capacity of 450 cfs can be made. However, to insure the safety of the structure, gate settings should never exceed the limits shown on the MAGO Curves, and should be checked at frequent intervals to insure that the design capacity of the structure is not exceeded. The gate should be opened gradually to allow the tailwater to rise before large releases are made. During low-water periods, minimum releases will be made to satisfy irrigation demands and maintain navigation downstream. Maximum Head The maximum water level differential should not exceed seven feet with the headwater not exceeding elevation 68.0 ft., NGVD. Kissimmee River Vol A-S60- December 005 Version Draft 4

20 STRUCTURE 60 HYDRAULIC DESIGN DATA Type of Structure Spillway Location Canal C-33 Station Discharge (cfs) Design 450 SPF Critical - Headwater Elevation Design 6.3 to 64. SPF 67.4 Critical - Optimum 6.0 to 64.0 Minimum 66.4 Tailwater Elevation Design 6.7 to 63.3 SPF 66.4 Critical - Optimum 60.0 to 6.0 Minimum 57.6 Crest Shape Ogee Elevation 55.0 Net Length (ft.).0 Gates Number Width X Height (ft.) 9. X.8 Clearance Elevation 65.0 Stilling Basin Apron Elevation 5.0 Apron Length 30.0 End Still Elevation 5.0 Training Wall Elevation 63.5 Kissimmee River Vol A-S60- December 005 Version Draft 4

21 STRUCTURE 60 HYDRAULIC DESIGN DATA (CONTINUED) Channel Section Side Slopes (vert. On horiz.) on Upstream Bottom Width & Elev. Downstream Bottom Width & Elev Riprap Upstream Channel Length (ft.) 35.0 Protection Elev Downstream Channel Length (ft.) 50.0 Protection Elev Approximate Ground Elevation at Structure 6+ Protection Elevation 7.0 Notes: All elevations refer to feet, NGVD. Kissimmee River Vol A-S60-3 December 005 Version Draft 4

22 S-60 CONTROLLED FLOW Kissimmee River Vol A-S60-4 December 005 Version Draft 4

23 S-60 SUBMERGED CONTROLLED FLOW Kissimmee River Vol A-S60-5 December 005 Version Draft

24 S-60 UNCONTROLLED FLOW Kissimmee River Vol A-S60-6 December 005 Version Draft 4

25 S-60 MAXIMUM ALLOWABLE GATE OPENING CURVES Kissimmee River Vol A-S60-7 December 005 Version Draft 4

STRUCTURE 65-B PURPOSE SPILLWAY OPERATION

STRUCTURE 65-B PURPOSE SPILLWAY OPERATION STRUCTURE 65-B This structure is a reinforced concrete, gated spillway with discharge controlled by three cable operated vertical lift gates and a reinforced concrete lock structure with two pairs of sector