3830 Lumpkin Co Veterans Cemetery Hydro Repor.pdf
PDF 2 MB Posted
- Attached to
- GRADING VETERANS MEMORIAL CEMETERY
- Solicitation number
- PE-63950-NONST-2026-000000025
- Issued by
- Lee County, Georgia
About this file
This is a hydrological engineering analysis document for the Lumpkin County Veterans Cemetery prepared by Hydrology Studio software as of January 12, 2026. The analysis evaluates stormwater runoff and detention pond performance for a 9.84-acre drainage area serving the cemetery facility. The study presents detailed hydrological modeling across multiple storm frequency scenarios including 1-year, 2-year, 5-year, 10-year, 25-year, 50-year, and 100-year storm events using NRCS Type II, 24-hour design storms. Pre-development and post-development conditions are compared to assess the impact of site improvements on peak discharge rates and runoff volumes. The detention pond design incorporates a trapezoidal storage configuration with specific stage-storage relationships, culvert orifice controls, and weir structures to manage stormwater outflows.
The hydrological analysis demonstrates that the detention pond successfully reduces post-development peak discharge rates compared to pre-development conditions across the 2-year through 25-year storm frequencies, with maximum storage requirements ranging from 2,981 cubic feet for the 2-year event to 11,592 cubic feet for the 25-year event. However, the modeling indicates that the 50-year and 100-year storm events exceed the pond's design capacity, resulting in zero calculated outflow values for these scenarios, which suggests the facility requires evaluation for larger storm events or additional stormwater management measures. The detention pond design features a circular compound weir structure with an elevation of 1354.5 feet, upstream storage area, and outlet control through a 30-inch diameter culvert with specific orifice coefficients. Critical drainage parameters include a curve number of 65.80 for post-development conditions, a time of concentration of 12.0 minutes, and runoff volumes ranging from 45,763 cubic feet for the 2-year event to 157,828 cubic feet for the 100-year event.
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Text version
Basin Model Hydrology Studio v 3.0.0.41
File: Pond Hydro R1.hys
01-12-2026
Hydrograph by Return Period
File: Pond Hydro R1.hys
01-12-2026
Hyd.
No.
Hydrograph
Type
Hydrograph
Name
Peak Outflow (cfs)
1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr
1 NRCS Runoff Pre-Development 14.68 22.39 29.55 40.09 48.77 57.81
2 NRCS Runoff Post-Development 17.44 25.63 33.20 44.23 53.20 62.48
3 Pond Route Pond Route 16.98 24.12 29.79 37.23 0.000 0.000
Hydrograph 2-yr Summary
File: Pond Hydro R1.hys
01-12-2026
Hyd.
No.
Hydrograph
Type
Hydrograph
Name
Peak
Flow
(cfs)
Time to
Peak
(hrs)
Hydrograph
Volume
(cuft)
Inflow
Hyd(s)
Maximum
Elevation
(ft)
Maximum
Storage
(cuft)
1 NRCS Runoff Pre-Development 14.68 12.03 39,794 ----
2 NRCS Runoff Post-Development 17.44 12.03 45,954 ----
3 Pond Route Pond Route 16.98 12.05 45,763 2 1350.74 2,981
Hydrograph Report
File: Pond Hydro R1.hys
01-12-2026
Pre-Development Hyd. No. 1
Hydrograph Type = NRCS Runoff Peak Flow = 14.68 cfs
Storm Frequency = 2-yr Time to Peak = 12.03 hrs
Time Interval = 1 min Runoff Volume = 39,794 cuft
Drainage Area = 9.84 ac Curve Number = 63.00
Tc Method = User Time of Conc. (Tc) = 12.0 min
Total Rainfall = 4.38 in Design Storm = Type II
Storm Duration = 24 hrs Shape Factor = 484
Time (hrs) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Q cf s)
Qp = 14.68 cfs
Hydrograph Discharge Table Pre-Development
Printed values > 1% of Qpeak. nth-point print interval = 1
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
11.63 0.198
11.65 0.264
11.67 0.349
11.68 0.455
11.70 0.586
11.72 0.744
11.73 0.933
11.75 1.157
11.77 1.421
11.78 1.736
11.80 2.114
11.82 2.567
11.83 3.113
11.85 3.767
11.87 4.550
11.88 5.481
11.90 6.582
11.92 7.863
11.93 9.201
11.95 10.56
11.97 11.85
11.98 13.00
12.00 13.90
12.02 14.48
12.03 14.68
12.05 14.45
12.07 13.93
12.08 13.15
12.10 12.18
12.12 11.10
12.13 9.992
12.15 8.916
12.17 7.882
12.18 6.908
12.20 6.009
12.22 5.205
12.23 4.515
12.25 3.961
12.27 3.569
12.28 3.279
12.30 3.088
12.32 2.971
12.33 2.898
12.35 2.840
12.37 2.782
12.38 2.723
12.40 2.663
12.42 2.602
12.43 2.540
12.45 2.478
12.47 2.415
12.48 2.351
12.50 2.287
12.52 2.222
12.53 2.158
12.55 2.095
12.57 2.033
12.58 1.975
12.60 1.919
12.62 1.867
12.63 1.820
12.65 1.778
12.67 1.740
12.68 1.706
12.70 1.676
12.72 1.650
12.73 1.626
12.75 1.605
12.77 1.585
12.78 1.568
12.80 1.552
12.82 1.537
12.83 1.522
12.85 1.508
12.87 1.493
12.88 1.478
12.90 1.464
12.92 1.449
12.93 1.434
12.95 1.419
12.97 1.404
12.98 1.389
13.00 1.373
13.02 1.358
13.03 1.343
13.05 1.328
13.07 1.313
13.08 1.299
13.10 1.285
13.12 1.271
13.13 1.259
13.15 1.247
13.17 1.235
13.18 1.224
13.20 1.214
13.22 1.204
13.23 1.195
13.25 1.185
13.27 1.177
13.28 1.168
13.30 1.159
13.32 1.151
13.33 1.143
13.35 1.135
13.37 1.126
13.38 1.118
13.40 1.109
13.42 1.101
13.43 1.093
13.45 1.084
13.47 1.076
13.48 1.067
13.50 1.058
13.52 1.050
13.53 1.041
13.55 1.033
13.57 1.024
13.58 1.016
13.60 1.008
13.62 1.000
13.63 0.992
13.65 0.985
13.67 0.977
13.68 0.970
13.70 0.963
13.72 0.957
13.73 0.950
13.75 0.943
13.77 0.937
13.78 0.931
13.80 0.924
13.82 0.918
13.83 0.912
13.85 0.905
13.87 0.899
13.88 0.893
13.90 0.886
13.92 0.880
13.93 0.874
13.95 0.867
13.97 0.861
13.98 0.854
14.00 0.848
14.02 0.842
14.03 0.835
14.05 0.829
14.07 0.823
14.08 0.817
14.10 0.812
14.12 0.806
14.13 0.802
14.15 0.797
14.17 0.793
14.18 0.790
14.20 0.786
14.22 0.783
14.23 0.780
14.25 0.778
14.27 0.775
14.28 0.773
14.30 0.771
14.32 0.769
14.33 0.767
14.35 0.765
14.37 0.763
14.38 0.761
14.40 0.759
14.42 0.757
14.43 0.754
14.45 0.752
14.47 0.750
14.48 0.748
14.50 0.746
14.52 0.744
14.53 0.742
14.55 0.740
14.57 0.738
14.58 0.736
14.60 0.734
14.62 0.732
Hydrograph Discharge Table, cont'd Pre-Development
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
14.63 0.729
14.65 0.727
14.67 0.725
14.68 0.723
14.70 0.721
14.72 0.719
14.73 0.717
14.75 0.715
14.77 0.712
14.78 0.710
14.80 0.708
14.82 0.706
14.83 0.704
14.85 0.702
14.87 0.699
14.88 0.697
14.90 0.695
14.92 0.693
14.93 0.691
14.95 0.688
14.97 0.686
14.98 0.684
15.00 0.682
15.02 0.680
15.03 0.677
15.05 0.675
15.07 0.673
15.08 0.671
15.10 0.669
15.12 0.666
15.13 0.664
15.15 0.662
15.17 0.660
15.18 0.657
15.20 0.655
15.22 0.653
15.23 0.651
15.25 0.648
15.27 0.646
15.28 0.644
15.30 0.641
15.32 0.639
15.33 0.637
15.35 0.635
15.37 0.632
15.38 0.630
15.40 0.628
15.42 0.625
15.43 0.623
15.45 0.621
15.47 0.618
15.48 0.616
15.50 0.614
15.52 0.611
15.53 0.609
15.55 0.607
15.57 0.604
15.58 0.602
15.60 0.600
15.62 0.597
15.63 0.595
15.65 0.593
15.67 0.590
15.68 0.588
15.70 0.586
15.72 0.583
15.73 0.581
15.75 0.578
15.77 0.576
15.78 0.574
15.80 0.571
15.82 0.569
15.83 0.566
15.85 0.564
15.87 0.562
15.88 0.559
15.90 0.557
15.92 0.554
15.93 0.552
15.95 0.550
15.97 0.547
15.98 0.545
16.00 0.542
16.02 0.540
16.03 0.538
16.05 0.535
16.07 0.533
16.08 0.531
16.10 0.529
16.12 0.527
16.13 0.525
16.15 0.523
16.17 0.522
16.18 0.520
16.20 0.519
16.22 0.518
16.23 0.517
16.25 0.516
16.27 0.515
16.28 0.514
16.30 0.513
16.32 0.512
16.33 0.512
16.35 0.511
16.37 0.510
16.38 0.509
16.40 0.509
16.42 0.508
16.43 0.507
16.45 0.506
16.47 0.505
16.48 0.505
16.50 0.504
16.52 0.503
16.53 0.502
16.55 0.502
16.57 0.501
16.58 0.500
16.60 0.499
16.62 0.498
16.63 0.498
16.65 0.497
16.67 0.496
16.68 0.495
16.70 0.494
16.72 0.494
16.73 0.493
16.75 0.492
16.77 0.491
16.78 0.490
16.80 0.490
16.82 0.489
16.83 0.488
16.85 0.487
16.87 0.486
16.88 0.486
16.90 0.485
16.92 0.484
16.93 0.483
16.95 0.482
16.97 0.482
16.98 0.481
17.00 0.480
17.02 0.479
17.03 0.478
17.05 0.478
17.07 0.477
17.08 0.476
17.10 0.475
17.12 0.474
17.13 0.473
17.15 0.473
17.17 0.472
17.18 0.471
17.20 0.470
17.22 0.469
17.23 0.469
17.25 0.468
17.27 0.467
17.28 0.466
17.30 0.465
17.32 0.464
17.33 0.464
17.35 0.463
17.37 0.462
17.38 0.461
17.40 0.460
17.42 0.459
17.43 0.459
17.45 0.458
17.47 0.457
17.48 0.456
17.50 0.455
17.52 0.454
17.53 0.454
17.55 0.453
17.57 0.452
17.58 0.451
17.60 0.450
17.62 0.449
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
17.63 0.448
17.65 0.448
17.67 0.447
17.68 0.446
17.70 0.445
17.72 0.444
17.73 0.443
17.75 0.443
17.77 0.442
17.78 0.441
17.80 0.440
17.82 0.439
17.83 0.438
17.85 0.437
17.87 0.437
17.88 0.436
17.90 0.435
17.92 0.434
17.93 0.433
17.95 0.432
17.97 0.431
17.98 0.431
18.00 0.430
18.02 0.429
18.03 0.428
18.05 0.427
18.07 0.426
18.08 0.425
18.10 0.424
18.12 0.424
18.13 0.423
18.15 0.422
18.17 0.421
18.18 0.420
18.20 0.419
18.22 0.418
18.23 0.417
18.25 0.417
18.27 0.416
18.28 0.415
18.30 0.414
18.32 0.413
18.33 0.412
18.35 0.411
18.37 0.410
18.38 0.410
18.40 0.409
18.42 0.408
18.43 0.407
18.45 0.406
18.47 0.405
18.48 0.404
18.50 0.403
18.52 0.403
18.53 0.402
18.55 0.401
18.57 0.400
18.58 0.399
18.60 0.398
18.62 0.397
18.63 0.396
18.65 0.395
18.67 0.394
18.68 0.394
18.70 0.393
18.72 0.392
18.73 0.391
18.75 0.390
18.77 0.389
18.78 0.388
18.80 0.387
18.82 0.386
18.83 0.386
18.85 0.385
18.87 0.384
18.88 0.383
18.90 0.382
18.92 0.381
18.93 0.380
18.95 0.379
18.97 0.378
18.98 0.377
19.00 0.376
19.02 0.376
19.03 0.375
19.05 0.374
19.07 0.373
19.08 0.372
19.10 0.371
19.12 0.370
19.13 0.369
19.15 0.368
19.17 0.367
19.18 0.366
19.20 0.366
19.22 0.365
19.23 0.364
19.25 0.363
19.27 0.362
19.28 0.361
19.30 0.360
19.32 0.359
19.33 0.358
19.35 0.357
19.37 0.356
19.38 0.355
19.40 0.354
19.42 0.354
19.43 0.353
19.45 0.352
19.47 0.351
19.48 0.350
19.50 0.349
19.52 0.348
19.53 0.347
19.55 0.346
19.57 0.345
19.58 0.344
19.60 0.343
19.62 0.342
19.63 0.342
19.65 0.341
19.67 0.340
19.68 0.339
19.70 0.338
19.72 0.337
19.73 0.336
19.75 0.335
19.77 0.334
19.78 0.333
19.80 0.332
19.82 0.331
19.83 0.330
19.85 0.329
19.87 0.328
19.88 0.327
19.90 0.327
19.92 0.326
19.93 0.325
19.95 0.324
19.97 0.323
19.98 0.322
20.00 0.321
20.02 0.320
20.03 0.319
20.05 0.318
20.07 0.317
20.08 0.316
20.10 0.316
20.12 0.315
20.13 0.314
20.15 0.314
20.17 0.313
20.18 0.313
20.20 0.312
20.22 0.312
20.23 0.312
20.25 0.312
20.27 0.311
20.28 0.311
20.30 0.311
20.32 0.311
20.33 0.311
20.35 0.310
20.37 0.310
20.38 0.310
20.40 0.310
20.42 0.310
20.43 0.310
20.45 0.310
20.47 0.309
20.48 0.309
20.50 0.309
20.52 0.309
20.53 0.309
20.55 0.309
20.57 0.309
20.58 0.308
20.60 0.308
20.62 0.308
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
20.63 0.308
20.65 0.308
20.67 0.308
20.68 0.307
20.70 0.307
20.72 0.307
20.73 0.307
20.75 0.307
20.77 0.307
20.78 0.307
20.80 0.306
20.82 0.306
20.83 0.306
20.85 0.306
20.87 0.306
20.88 0.306
20.90 0.305
20.92 0.305
20.93 0.305
20.95 0.305
20.97 0.305
20.98 0.305
21.00 0.305
21.02 0.304
21.03 0.304
21.05 0.304
21.07 0.304
21.08 0.304
21.10 0.304
21.12 0.303
21.13 0.303
21.15 0.303
21.17 0.303
21.18 0.303
21.20 0.303
21.22 0.303
21.23 0.302
21.25 0.302
21.27 0.302
21.28 0.302
21.30 0.302
21.32 0.302
21.33 0.301
21.35 0.301
21.37 0.301
21.38 0.301
21.40 0.301
21.42 0.301
21.43 0.301
21.45 0.300
21.47 0.300
21.48 0.300
21.50 0.300
21.52 0.300
21.53 0.300
21.55 0.299
21.57 0.299
21.58 0.299
21.60 0.299
21.62 0.299
21.63 0.299
21.65 0.298
21.67 0.298
21.68 0.298
21.70 0.298
21.72 0.298
21.73 0.298
21.75 0.298
21.77 0.297
21.78 0.297
21.80 0.297
21.82 0.297
21.83 0.297
21.85 0.297
21.87 0.296
21.88 0.296
21.90 0.296
21.92 0.296
21.93 0.296
21.95 0.296
21.97 0.295
21.98 0.295
22.00 0.295
22.02 0.295
22.03 0.295
22.05 0.295
22.07 0.294
22.08 0.294
22.10 0.294
22.12 0.294
22.13 0.294
22.15 0.294
22.17 0.294
22.18 0.293
22.20 0.293
22.22 0.293
22.23 0.293
22.25 0.293
22.27 0.293
22.28 0.292
22.30 0.292
22.32 0.292
22.33 0.292
22.35 0.292
22.37 0.292
22.38 0.291
22.40 0.291
22.42 0.291
22.43 0.291
22.45 0.291
22.47 0.291
22.48 0.290
22.50 0.290
22.52 0.290
22.53 0.290
22.55 0.290
22.57 0.290
22.58 0.289
22.60 0.289
22.62 0.289
22.63 0.289
22.65 0.289
22.67 0.289
22.68 0.288
22.70 0.288
22.72 0.288
22.73 0.288
22.75 0.288
22.77 0.288
22.78 0.287
22.80 0.287
22.82 0.287
22.83 0.287
22.85 0.287
22.87 0.287
22.88 0.287
22.90 0.286
22.92 0.286
22.93 0.286
22.95 0.286
22.97 0.286
22.98 0.286
23.00 0.285
23.02 0.285
23.03 0.285
23.05 0.285
23.07 0.285
23.08 0.285
23.10 0.284
23.12 0.284
23.13 0.284
23.15 0.284
23.17 0.284
23.18 0.284
23.20 0.283
23.22 0.283
23.23 0.283
23.25 0.283
23.27 0.283
23.28 0.283
23.30 0.282
23.32 0.282
23.33 0.282
23.35 0.282
23.37 0.282
23.38 0.281
23.40 0.281
23.42 0.281
23.43 0.281
23.45 0.281
23.47 0.281
23.48 0.280
23.50 0.280
23.52 0.280
23.53 0.280
23.55 0.280
23.57 0.280
23.58 0.279
23.60 0.279
23.62 0.279
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
23.63 0.279
23.65 0.279
23.67 0.279
23.68 0.278
23.70 0.278
23.72 0.278
23.73 0.278
23.75 0.278
23.77 0.278
23.78 0.277
23.80 0.277
23.82 0.277
23.83 0.277
23.85 0.277
23.87 0.277
23.88 0.276
23.90 0.276
23.92 0.276
23.93 0.276
23.95 0.276
23.97 0.276
23.98 0.275
24.00 0.275
24.02 0.272
24.03 0.265
24.05 0.255
24.07 0.242
24.08 0.226
24.10 0.206
24.12 0.183
24.13 0.157
24.15 0.133
...end ...end
File: Pond Hydro R1.hys
01-12-2026
Post-Development Hyd. No. 2
Hydrograph Type = NRCS Runoff Peak Flow = 17.44 cfs
Storm Frequency = 2-yr Time to Peak = 12.03 hrs
Time Interval = 1 min Runoff Volume = 45,954 cuft
Drainage Area = 9.84 ac Curve Number = 65.80
Tc Method = User Time of Conc. (Tc) = 12.0 min
Total Rainfall = 4.38 in Design Storm = Type II
Storm Duration = 24 hrs Shape Factor = 484
Time (hrs) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Q cf s)
Qp = 17.44 cfs
Hydrograph Discharge Table Post-Development
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
11.47 0.183
11.48 0.198
11.50 0.213
11.52 0.230
11.53 0.249
11.55 0.274
11.57 0.305
11.58 0.345
11.60 0.398
11.62 0.467
11.63 0.556
11.65 0.668
11.67 0.805
11.68 0.970
11.70 1.166
11.72 1.396
11.73 1.663
11.75 1.968
11.77 2.319
11.78 2.728
11.80 3.207
11.82 3.772
11.83 4.440
11.85 5.229
11.87 6.160
11.88 7.256
11.90 8.536
11.92 10.01
11.93 11.54
11.95 13.07
11.97 14.51
11.98 15.76
12.00 16.71
12.02 17.29
12.03 17.44
12.05 17.07
12.07 16.40
12.08 15.42
12.10 14.23
12.12 12.92
12.13 11.60
12.15 10.31
12.17 9.084
12.18 7.934
12.20 6.879
12.22 5.939
12.23 5.137
12.25 4.496
12.27 4.044
12.28 3.710
12.30 3.491
12.32 3.356
12.33 3.272
12.35 3.204
12.37 3.137
12.38 3.068
12.40 2.999
12.42 2.929
12.43 2.859
12.45 2.787
12.47 2.715
12.48 2.643
12.50 2.569
12.52 2.496
12.53 2.423
12.55 2.351
12.57 2.281
12.58 2.214
12.60 2.151
12.62 2.093
12.63 2.039
12.65 1.991
12.67 1.948
12.68 1.910
12.70 1.876
12.72 1.845
12.73 1.818
12.75 1.794
12.77 1.772
12.78 1.752
12.80 1.734
12.82 1.717
12.83 1.700
12.85 1.683
12.87 1.667
12.88 1.650
12.90 1.633
12.92 1.616
12.93 1.599
12.95 1.582
12.97 1.565
12.98 1.548
13.00 1.531
13.02 1.513
13.03 1.496
13.05 1.479
13.07 1.462
13.08 1.446
13.10 1.430
13.12 1.415
13.13 1.401
13.15 1.387
13.17 1.374
13.18 1.362
13.20 1.350
13.22 1.339
13.23 1.328
13.25 1.318
13.27 1.308
13.28 1.298
13.30 1.288
13.32 1.279
13.33 1.269
13.35 1.260
13.37 1.251
13.38 1.241
13.40 1.232
13.42 1.222
13.43 1.213
13.45 1.203
13.47 1.193
13.48 1.184
13.50 1.174
13.52 1.164
13.53 1.155
13.55 1.145
13.57 1.136
13.58 1.126
13.60 1.117
13.62 1.108
13.63 1.099
13.65 1.091
13.67 1.083
13.68 1.075
13.70 1.067
13.72 1.059
13.73 1.052
13.75 1.044
13.77 1.037
13.78 1.030
13.80 1.023
13.82 1.016
13.83 1.009
13.85 1.002
13.87 0.995
13.88 0.988
13.90 0.980
13.92 0.973
13.93 0.966
13.95 0.959
13.97 0.952
13.98 0.945
14.00 0.937
14.02 0.930
14.03 0.923
14.05 0.916
14.07 0.909
14.08 0.903
14.10 0.897
14.12 0.891
14.13 0.885
14.15 0.881
14.17 0.876
14.18 0.872
14.20 0.868
14.22 0.865
14.23 0.862
14.25 0.859
14.27 0.856
14.28 0.853
14.30 0.851
14.32 0.848
14.33 0.846
14.35 0.844
14.37 0.842
14.38 0.839
14.40 0.837
14.42 0.835
14.43 0.832
14.45 0.830
Hydrograph Discharge Table, cont'd Post-Development
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
14.47 0.828
14.48 0.825
14.50 0.823
14.52 0.820
14.53 0.818
14.55 0.816
14.57 0.813
14.58 0.811
14.60 0.809
14.62 0.806
14.63 0.804
14.65 0.801
14.67 0.799
14.68 0.797
14.70 0.794
14.72 0.792
14.73 0.789
14.75 0.787
14.77 0.785
14.78 0.782
14.80 0.780
14.82 0.777
14.83 0.775
14.85 0.772
14.87 0.770
14.88 0.768
14.90 0.765
14.92 0.763
14.93 0.760
14.95 0.758
14.97 0.755
14.98 0.753
15.00 0.750
15.02 0.748
15.03 0.745
15.05 0.743
15.07 0.740
15.08 0.738
15.10 0.735
15.12 0.733
15.13 0.730
15.15 0.728
15.17 0.725
15.18 0.723
15.20 0.720
15.22 0.718
15.23 0.715
15.25 0.713
15.27 0.710
15.28 0.707
15.30 0.705
15.32 0.702
15.33 0.700
15.35 0.697
15.37 0.695
15.38 0.692
15.40 0.690
15.42 0.687
15.43 0.684
15.45 0.682
15.47 0.679
15.48 0.677
15.50 0.674
15.52 0.671
15.53 0.669
15.55 0.666
15.57 0.664
15.58 0.661
15.60 0.658
15.62 0.656
15.63 0.653
15.65 0.651
15.67 0.648
15.68 0.645
15.70 0.643
15.72 0.640
15.73 0.637
15.75 0.635
15.77 0.632
15.78 0.629
15.80 0.627
15.82 0.624
15.83 0.621
15.85 0.619
15.87 0.616
15.88 0.613
15.90 0.611
15.92 0.608
15.93 0.605
15.95 0.603
15.97 0.600
15.98 0.597
16.00 0.595
16.02 0.592
16.03 0.589
16.05 0.587
16.07 0.584
16.08 0.582
16.10 0.579
16.12 0.577
16.13 0.575
16.15 0.573
16.17 0.572
16.18 0.570
16.20 0.569
16.22 0.568
16.23 0.566
16.25 0.565
16.27 0.564
16.28 0.563
16.30 0.562
16.32 0.561
16.33 0.561
16.35 0.560
16.37 0.559
16.38 0.558
16.40 0.557
16.42 0.556
16.43 0.555
16.45 0.554
16.47 0.554
16.48 0.553
16.50 0.552
16.52 0.551
16.53 0.550
16.55 0.549
16.57 0.548
16.58 0.547
16.60 0.546
16.62 0.546
16.63 0.545
16.65 0.544
16.67 0.543
16.68 0.542
16.70 0.541
16.72 0.540
16.73 0.539
16.75 0.538
16.77 0.538
16.78 0.537
16.80 0.536
16.82 0.535
16.83 0.534
16.85 0.533
16.87 0.532
16.88 0.531
16.90 0.530
16.92 0.529
16.93 0.529
16.95 0.528
16.97 0.527
16.98 0.526
17.00 0.525
17.02 0.524
17.03 0.523
17.05 0.522
17.07 0.521
17.08 0.520
17.10 0.519
17.12 0.519
17.13 0.518
17.15 0.517
17.17 0.516
17.18 0.515
17.20 0.514
17.22 0.513
17.23 0.512
17.25 0.511
17.27 0.510
17.28 0.509
17.30 0.508
17.32 0.508
17.33 0.507
17.35 0.506
17.37 0.505
17.38 0.504
17.40 0.503
17.42 0.502
17.43 0.501
17.45 0.500
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
17.47 0.499
17.48 0.498
17.50 0.497
17.52 0.496
17.53 0.495
17.55 0.494
17.57 0.494
17.58 0.493
17.60 0.492
17.62 0.491
17.63 0.490
17.65 0.489
17.67 0.488
17.68 0.487
17.70 0.486
17.72 0.485
17.73 0.484
17.75 0.483
17.77 0.482
17.78 0.481
17.80 0.480
17.82 0.479
17.83 0.478
17.85 0.477
17.87 0.477
17.88 0.476
17.90 0.475
17.92 0.474
17.93 0.473
17.95 0.472
17.97 0.471
17.98 0.470
18.00 0.469
18.02 0.468
18.03 0.467
18.05 0.466
18.07 0.465
18.08 0.464
18.10 0.463
18.12 0.462
18.13 0.461
18.15 0.460
18.17 0.459
18.18 0.458
18.20 0.457
18.22 0.456
18.23 0.455
18.25 0.454
18.27 0.453
18.28 0.452
18.30 0.451
18.32 0.451
18.33 0.450
18.35 0.449
18.37 0.448
18.38 0.447
18.40 0.446
18.42 0.445
18.43 0.444
18.45 0.443
18.47 0.442
18.48 0.441
18.50 0.440
18.52 0.439
18.53 0.438
18.55 0.437
18.57 0.436
18.58 0.435
18.60 0.434
18.62 0.433
18.63 0.432
18.65 0.431
18.67 0.430
18.68 0.429
18.70 0.428
18.72 0.427
18.73 0.426
18.75 0.425
18.77 0.424
18.78 0.423
18.80 0.422
18.82 0.421
18.83 0.420
18.85 0.419
18.87 0.418
18.88 0.417
18.90 0.416
18.92 0.415
18.93 0.414
18.95 0.413
18.97 0.412
18.98 0.411
19.00 0.410
19.02 0.409
19.03 0.408
19.05 0.407
19.07 0.406
19.08 0.405
19.10 0.404
19.12 0.403
19.13 0.402
19.15 0.401
19.17 0.400
19.18 0.399
19.20 0.398
19.22 0.397
19.23 0.396
19.25 0.395
19.27 0.394
19.28 0.393
19.30 0.392
19.32 0.391
19.33 0.390
19.35 0.389
19.37 0.388
19.38 0.387
19.40 0.386
19.42 0.385
19.43 0.384
19.45 0.383
19.47 0.382
19.48 0.381
19.50 0.380
19.52 0.379
19.53 0.378
19.55 0.377
19.57 0.376
19.58 0.375
19.60 0.374
19.62 0.373
19.63 0.372
19.65 0.371
19.67 0.370
19.68 0.369
19.70 0.368
19.72 0.367
19.73 0.365
19.75 0.364
19.77 0.363
19.78 0.362
19.80 0.361
19.82 0.360
19.83 0.359
19.85 0.358
19.87 0.357
19.88 0.356
19.90 0.355
19.92 0.354
19.93 0.353
19.95 0.352
19.97 0.351
19.98 0.350
20.00 0.349
20.02 0.348
20.03 0.347
20.05 0.346
20.07 0.345
20.08 0.344
20.10 0.343
20.12 0.342
20.13 0.342
20.15 0.341
20.17 0.341
20.18 0.340
20.20 0.340
20.22 0.339
20.23 0.339
20.25 0.339
20.27 0.338
20.28 0.338
20.30 0.338
20.32 0.338
20.33 0.338
20.35 0.338
20.37 0.337
20.38 0.337
20.40 0.337
20.42 0.337
20.43 0.337
20.45 0.336
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
20.47 0.336
20.48 0.336
20.50 0.336
20.52 0.336
20.53 0.336
20.55 0.335
20.57 0.335
20.58 0.335
20.60 0.335
20.62 0.335
20.63 0.335
20.65 0.334
20.67 0.334
20.68 0.334
20.70 0.334
20.72 0.334
20.73 0.334
20.75 0.333
20.77 0.333
20.78 0.333
20.80 0.333
20.82 0.333
20.83 0.333
20.85 0.332
20.87 0.332
20.88 0.332
20.90 0.332
20.92 0.332
20.93 0.331
20.95 0.331
20.97 0.331
20.98 0.331
21.00 0.331
21.02 0.331
21.03 0.330
21.05 0.330
21.07 0.330
21.08 0.330
21.10 0.330
21.12 0.330
21.13 0.329
21.15 0.329
21.17 0.329
21.18 0.329
21.20 0.329
21.22 0.329
21.23 0.328
21.25 0.328
21.27 0.328
21.28 0.328
21.30 0.328
21.32 0.327
21.33 0.327
21.35 0.327
21.37 0.327
21.38 0.327
21.40 0.327
21.42 0.326
21.43 0.326
21.45 0.326
21.47 0.326
21.48 0.326
21.50 0.326
21.52 0.325
21.53 0.325
21.55 0.325
21.57 0.325
21.58 0.325
21.60 0.324
21.62 0.324
21.63 0.324
21.65 0.324
21.67 0.324
21.68 0.324
21.70 0.323
21.72 0.323
21.73 0.323
21.75 0.323
21.77 0.323
21.78 0.323
21.80 0.322
21.82 0.322
21.83 0.322
21.85 0.322
21.87 0.322
21.88 0.321
21.90 0.321
21.92 0.321
21.93 0.321
21.95 0.321
21.97 0.321
21.98 0.320
22.00 0.320
22.02 0.320
22.03 0.320
22.05 0.320
22.07 0.319
22.08 0.319
22.10 0.319
22.12 0.319
22.13 0.319
22.15 0.319
22.17 0.318
22.18 0.318
22.20 0.318
22.22 0.318
22.23 0.318
22.25 0.317
22.27 0.317
22.28 0.317
22.30 0.317
22.32 0.317
22.33 0.317
22.35 0.316
22.37 0.316
22.38 0.316
22.40 0.316
22.42 0.316
22.43 0.315
22.45 0.315
22.47 0.315
22.48 0.315
22.50 0.315
22.52 0.315
22.53 0.314
22.55 0.314
22.57 0.314
22.58 0.314
22.60 0.314
22.62 0.313
22.63 0.313
22.65 0.313
22.67 0.313
22.68 0.313
22.70 0.313
22.72 0.312
22.73 0.312
22.75 0.312
22.77 0.312
22.78 0.312
22.80 0.311
22.82 0.311
22.83 0.311
22.85 0.311
22.87 0.311
22.88 0.311
22.90 0.310
22.92 0.310
22.93 0.310
22.95 0.310
22.97 0.310
22.98 0.309
23.00 0.309
23.02 0.309
23.03 0.309
23.05 0.309
23.07 0.308
23.08 0.308
23.10 0.308
23.12 0.308
23.13 0.308
23.15 0.308
23.17 0.307
23.18 0.307
23.20 0.307
23.22 0.307
23.23 0.307
23.25 0.306
23.27 0.306
23.28 0.306
23.30 0.306
23.32 0.306
23.33 0.305
23.35 0.305
23.37 0.305
23.38 0.305
23.40 0.305
23.42 0.305
23.43 0.304
23.45 0.304
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
23.47 0.304
23.48 0.304
23.50 0.304
23.52 0.303
23.53 0.303
23.55 0.303
23.57 0.303
23.58 0.303
23.60 0.302
23.62 0.302
23.63 0.302
23.65 0.302
23.67 0.302
23.68 0.302
23.70 0.301
23.72 0.301
23.73 0.301
23.75 0.301
23.77 0.301
23.78 0.300
23.80 0.300
23.82 0.300
23.83 0.300
23.85 0.300
23.87 0.299
23.88 0.299
23.90 0.299
23.92 0.299
23.93 0.299
23.95 0.299
23.97 0.298
23.98 0.298
24.00 0.298
24.02 0.294
24.03 0.287
24.05 0.276
24.07 0.262
24.08 0.244
24.10 0.223
24.12 0.198
24.13 0.170
File: Pond Hydro R1.hys
01-12-2026
Pond Route Hyd. No. 3
Hydrograph Type = Pond Route Peak Flow = 16.98 cfs
Storm Frequency = 2-yr Time to Peak = 12.05 hrs
Time Interval = 1 min Hydrograph Volume = 45,763 cuft
Inflow Hydrograph = 2 - Post-Development Max. Elevation = 1350.74 ft
Pond Name = Detention Pond Max. Storage = 2,981 cuft
Pond Routing by Storage Indication Method Center of mass detention time = 2 min
Post-Development Pond Route
Time (hrs) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Q cf s)
Qp = 16.98 cfs
Hydrograph Discharge Table Pond Route
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
11.52 0.184
11.53 0.205
11.55 0.229
11.57 0.255
11.58 0.287
11.60 0.341
11.62 0.401
11.63 0.467
11.65 0.550
11.67 0.687
11.68 0.865
11.70 1.062
11.72 1.327
11.73 1.583
11.75 1.878
11.77 2.244
11.78 2.676
11.80 3.130
11.82 3.660
11.83 4.342
11.85 5.109
11.87 5.997
11.88 7.004
11.90 8.192
11.92 9.517
11.93 10.92
11.95 12.10
11.97 13.33
11.98 14.52
12.00 15.59
12.02 16.41
12.03 16.89
12.05 16.98
12.07 16.73
12.08 16.07
12.10 15.22
12.12 14.13
12.13 12.81
12.15 11.52
12.17 9.963
12.18 8.288
12.20 6.890
12.22 5.808
12.23 4.936
12.25 4.375
12.27 3.953
12.28 3.717
12.30 3.563
12.32 3.434
12.33 3.318
12.35 3.222
12.37 3.137
12.38 3.059
12.40 2.989
12.42 2.919
12.43 2.845
12.45 2.771
12.47 2.692
12.48 2.613
12.50 2.534
12.52 2.454
12.53 2.376
12.55 2.315
12.57 2.254
12.58 2.188
12.60 2.119
12.62 2.058
12.63 2.007
12.65 1.962
12.67 1.923
12.68 1.888
12.70 1.860
12.72 1.837
12.73 1.814
12.75 1.794
12.77 1.775
12.78 1.757
12.80 1.737
12.82 1.716
12.83 1.698
12.85 1.680
12.87 1.662
12.88 1.645
12.90 1.628
12.92 1.611
12.93 1.594
12.95 1.577
12.97 1.564
12.98 1.550
13.00 1.536
13.02 1.520
13.03 1.504
13.05 1.487
13.07 1.471
13.08 1.450
13.10 1.425
13.12 1.406
13.13 1.390
13.15 1.376
13.17 1.363
13.18 1.352
13.20 1.340
13.22 1.330
13.23 1.320
13.25 1.310
13.27 1.301
13.28 1.293
13.30 1.284
13.32 1.275
13.33 1.265
13.35 1.256
13.37 1.247
13.38 1.237
13.40 1.228
13.42 1.218
13.43 1.209
13.45 1.199
13.47 1.189
13.48 1.180
13.50 1.170
13.52 1.161
13.53 1.152
13.55 1.143
13.57 1.133
13.58 1.124
13.60 1.115
13.62 1.106
13.63 1.097
13.65 1.089
13.67 1.081
13.68 1.073
13.70 1.065
13.72 1.058
13.73 1.051
13.75 1.044
13.77 1.037
13.78 1.030
13.80 1.023
13.82 1.016
13.83 1.008
13.85 1.001
13.87 0.994
13.88 0.987
13.90 0.980
13.92 0.973
13.93 0.966
13.95 0.959
13.97 0.951
13.98 0.944
14.00 0.937
14.02 0.931
14.03 0.924
14.05 0.918
14.07 0.911
14.08 0.905
14.10 0.898
14.12 0.892
14.13 0.887
14.15 0.882
14.17 0.878
14.18 0.874
14.20 0.870
14.22 0.867
14.23 0.864
14.25 0.861
14.27 0.858
14.28 0.856
14.30 0.853
14.32 0.851
14.33 0.848
14.35 0.846
14.37 0.844
14.38 0.841
14.40 0.839
14.42 0.836
14.43 0.834
14.45 0.831
14.47 0.829
14.48 0.826
14.50 0.824
Hydrograph Discharge Table, cont'd Pond Route
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
14.52 0.822
14.53 0.819
14.55 0.817
14.57 0.814
14.58 0.812
14.60 0.810
14.62 0.807
14.63 0.805
14.65 0.803
14.67 0.800
14.68 0.798
14.70 0.795
14.72 0.793
14.73 0.791
14.75 0.788
14.77 0.786
14.78 0.783
14.80 0.781
14.82 0.778
14.83 0.776
14.85 0.774
14.87 0.771
14.88 0.769
14.90 0.766
14.92 0.764
14.93 0.761
14.95 0.759
14.97 0.756
14.98 0.754
15.00 0.751
15.02 0.749
15.03 0.746
15.05 0.744
15.07 0.741
15.08 0.739
15.10 0.736
15.12 0.734
15.13 0.731
15.15 0.729
15.17 0.726
15.18 0.724
15.20 0.721
15.22 0.719
15.23 0.717
15.25 0.714
15.27 0.712
15.28 0.709
15.30 0.707
15.32 0.704
15.33 0.702
15.35 0.699
15.37 0.697
15.38 0.694
15.40 0.691
15.42 0.689
15.43 0.686
15.45 0.684
15.47 0.681
15.48 0.679
15.50 0.676
15.52 0.673
15.53 0.671
15.55 0.668
15.57 0.666
15.58 0.663
15.60 0.660
15.62 0.658
15.63 0.655
15.65 0.652
15.67 0.650
15.68 0.647
15.70 0.644
15.72 0.642
15.73 0.639
15.75 0.637
15.77 0.634
15.78 0.631
15.80 0.629
15.82 0.626
15.83 0.623
15.85 0.621
15.87 0.618
15.88 0.615
15.90 0.613
15.92 0.610
15.93 0.607
15.95 0.605
15.97 0.602
15.98 0.599
16.00 0.597
16.02 0.594
16.03 0.591
16.05 0.589
16.07 0.586
16.08 0.584
16.10 0.581
16.12 0.579
16.13 0.577
16.15 0.575
16.17 0.573
16.18 0.572
16.20 0.571
16.22 0.569
16.23 0.568
16.25 0.567
16.27 0.566
16.28 0.565
16.30 0.564
16.32 0.563
16.33 0.562
16.35 0.562
16.37 0.561
16.38 0.560
16.40 0.559
16.42 0.558
16.43 0.557
16.45 0.556
16.47 0.555
16.48 0.555
16.50 0.554
16.52 0.553
16.53 0.552
16.55 0.551
16.57 0.550
16.58 0.549
16.60 0.548
16.62 0.547
16.63 0.547
16.65 0.546
16.67 0.545
16.68 0.544
16.70 0.543
16.72 0.542
16.73 0.541
16.75 0.540
16.77 0.539
16.78 0.539
16.80 0.538
16.82 0.537
16.83 0.536
16.85 0.535
16.87 0.534
16.88 0.533
16.90 0.532
16.92 0.531
16.93 0.530
16.95 0.530
16.97 0.529
16.98 0.528
17.00 0.527
17.02 0.526
17.03 0.525
17.05 0.524
17.07 0.523
17.08 0.522
17.10 0.522
17.12 0.521
17.13 0.520
17.15 0.519
17.17 0.518
17.18 0.518
17.20 0.517
17.22 0.516
17.23 0.515
17.25 0.514
17.27 0.513
17.28 0.512
17.30 0.511
17.32 0.510
17.33 0.509
17.35 0.509
17.37 0.508
17.38 0.507
17.40 0.506
17.42 0.505
17.43 0.504
17.45 0.503
17.47 0.502
17.48 0.501
17.50 0.500
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
17.52 0.499
17.53 0.498
17.55 0.497
17.57 0.496
17.58 0.495
17.60 0.495
17.62 0.494
17.63 0.493
17.65 0.492
17.67 0.491
17.68 0.490
17.70 0.489
17.72 0.488
17.73 0.487
17.75 0.486
17.77 0.485
17.78 0.484
17.80 0.483
17.82 0.482
17.83 0.481
17.85 0.480
17.87 0.479
17.88 0.478
17.90 0.477
17.92 0.477
17.93 0.476
17.95 0.475
17.97 0.474
17.98 0.473
18.00 0.472
18.02 0.471
18.03 0.470
18.05 0.469
18.07 0.468
18.08 0.467
18.10 0.466
18.12 0.465
18.13 0.464
18.15 0.463
18.17 0.462
18.18 0.461
18.20 0.460
18.22 0.459
18.23 0.458
18.25 0.457
18.27 0.456
18.28 0.455
18.30 0.454
18.32 0.453
18.33 0.452
18.35 0.451
18.37 0.450
18.38 0.449
18.40 0.448
18.42 0.447
18.43 0.446
18.45 0.445
18.47 0.444
18.48 0.443
18.50 0.442
18.52 0.441
18.53 0.440
18.55 0.439
18.57 0.438
18.58 0.437
18.60 0.436
18.62 0.435
18.63 0.434
18.65 0.433
18.67 0.432
18.68 0.431
18.70 0.430
18.72 0.429
18.73 0.428
18.75 0.427
18.77 0.426
18.78 0.425
18.80 0.424
18.82 0.423
18.83 0.422
18.85 0.421
18.87 0.420
18.88 0.419
18.90 0.418
18.92 0.417
18.93 0.416
18.95 0.415
18.97 0.414
18.98 0.413
19.00 0.412
19.02 0.411
19.03 0.410
19.05 0.409
19.07 0.408
19.08 0.407
19.10 0.406
19.12 0.405
19.13 0.404
19.15 0.403
19.17 0.402
19.18 0.401
19.20 0.400
19.22 0.399
19.23 0.398
19.25 0.397
19.27 0.396
19.28 0.395
19.30 0.394
19.32 0.393
19.33 0.392
19.35 0.391
19.37 0.390
19.38 0.389
19.40 0.388
19.42 0.387
19.43 0.386
19.45 0.385
19.47 0.384
19.48 0.383
19.50 0.382
19.52 0.381
19.53 0.380
19.55 0.379
19.57 0.378
19.58 0.377
19.60 0.376
19.62 0.375
19.63 0.374
19.65 0.373
19.67 0.372
19.68 0.371
19.70 0.369
19.72 0.368
19.73 0.367
19.75 0.366
19.77 0.365
19.78 0.363
19.80 0.362
19.82 0.361
19.83 0.360
19.85 0.359
19.87 0.358
19.88 0.357
19.90 0.356
19.92 0.355
19.93 0.354
19.95 0.353
19.97 0.352
19.98 0.351
20.00 0.350
20.02 0.349
20.03 0.348
20.05 0.347
20.07 0.346
20.08 0.345
20.10 0.344
20.12 0.343
20.13 0.343
20.15 0.342
20.17 0.342
20.18 0.341
20.20 0.341
20.22 0.340
20.23 0.340
20.25 0.340
20.27 0.340
20.28 0.340
20.30 0.339
20.32 0.339
20.33 0.339
20.35 0.339
20.37 0.339
20.38 0.339
20.40 0.338
20.42 0.338
20.43 0.338
20.45 0.338
20.47 0.338
20.48 0.338
20.50 0.337
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
20.52 0.337
20.53 0.337
20.55 0.337
20.57 0.337
20.58 0.337
20.60 0.336
20.62 0.336
20.63 0.336
20.65 0.336
20.67 0.336
20.68 0.335
20.70 0.335
20.72 0.335
20.73 0.335
20.75 0.335
20.77 0.335
20.78 0.334
20.80 0.334
20.82 0.334
20.83 0.334
20.85 0.334
20.87 0.334
20.88 0.333
20.90 0.333
20.92 0.333
20.93 0.333
20.95 0.333
20.97 0.333
20.98 0.332
21.00 0.332
21.02 0.332
21.03 0.332
21.05 0.332
21.07 0.332
21.08 0.331
21.10 0.331
21.12 0.331
21.13 0.331
21.15 0.331
21.17 0.330
21.18 0.330
21.20 0.330
21.22 0.330
21.23 0.330
21.25 0.330
21.27 0.329
21.28 0.329
21.30 0.329
21.32 0.329
21.33 0.329
21.35 0.329
21.37 0.328
21.38 0.328
21.40 0.328
21.42 0.328
21.43 0.328
21.45 0.327
21.47 0.327
21.48 0.327
21.50 0.327
21.52 0.327
21.53 0.327
21.55 0.326
21.57 0.326
21.58 0.326
21.60 0.326
21.62 0.326
21.63 0.326
21.65 0.325
21.67 0.325
21.68 0.325
21.70 0.325
21.72 0.325
21.73 0.324
21.75 0.324
21.77 0.324
21.78 0.324
21.80 0.324
21.82 0.324
21.83 0.323
21.85 0.323
21.87 0.323
21.88 0.323
21.90 0.323
21.92 0.322
21.93 0.322
21.95 0.322
21.97 0.322
21.98 0.322
22.00 0.322
22.02 0.321
22.03 0.321
22.05 0.321
22.07 0.321
22.08 0.321
22.10 0.321
22.12 0.320
22.13 0.320
22.15 0.320
22.17 0.320
22.18 0.320
22.20 0.319
22.22 0.319
22.23 0.319
22.25 0.319
22.27 0.319
22.28 0.319
22.30 0.318
22.32 0.318
22.33 0.318
22.35 0.318
22.37 0.318
22.38 0.317
22.40 0.317
22.42 0.317
22.43 0.317
22.45 0.317
22.47 0.317
22.48 0.316
22.50 0.316
22.52 0.316
22.53 0.316
22.55 0.316
22.57 0.315
22.58 0.315
22.60 0.315
22.62 0.315
22.63 0.315
22.65 0.315
22.67 0.314
22.68 0.314
22.70 0.314
22.72 0.314
22.73 0.314
22.75 0.313
22.77 0.313
22.78 0.313
22.80 0.313
22.82 0.313
22.83 0.312
22.85 0.312
22.87 0.312
22.88 0.312
22.90 0.312
22.92 0.312
22.93 0.311
22.95 0.311
22.97 0.311
22.98 0.311
23.00 0.311
23.02 0.310
23.03 0.310
23.05 0.310
23.07 0.310
23.08 0.310
23.10 0.310
23.12 0.309
23.13 0.309
23.15 0.309
23.17 0.309
23.18 0.309
23.20 0.308
23.22 0.308
23.23 0.308
23.25 0.308
23.27 0.308
23.28 0.307
23.30 0.307
23.32 0.307
23.33 0.307
23.35 0.307
23.37 0.307
23.38 0.306
23.40 0.306
23.42 0.306
23.43 0.306
23.45 0.306
23.47 0.305
23.48 0.305
23.50 0.305
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
23.52 0.305
23.53 0.305
23.55 0.304
23.57 0.304
23.58 0.304
23.60 0.304
23.62 0.304
23.63 0.304
23.65 0.303
23.67 0.303
23.68 0.303
23.70 0.303
23.72 0.303
23.73 0.302
23.75 0.302
23.77 0.302
23.78 0.302
23.80 0.302
23.82 0.301
23.83 0.301
23.85 0.301
23.87 0.301
23.88 0.301
23.90 0.300
23.92 0.300
23.93 0.300
23.95 0.300
23.97 0.300
23.98 0.300
24.00 0.299
24.02 0.298
24.03 0.294
24.05 0.286
24.07 0.274
24.08 0.258
24.10 0.234
24.12 0.206
24.13 0.177
24.15 0.151
Pond Report
File: Pond Hydro R1.hys
01-12-2026
Detention Pond Stage-Storage
Description Input
Stage / Storage Table
Stage (ft)
Elevation (ft)
Contour Area (sqft)
Incr. Storage (cuft)
Total Storage (cuft)
Trapezoid
Bottom Elevation, ft
Bottom Length, ft
Bottom Width, ft
Side Slope, H:1
Total Depth, ft
Voids (%)
1348.00
96.00
2.00
3.00
7.00
100.00
0.00 1348.00 192 0.000 0.000
0.35 1348.35 402 104 104
0.70 1348.70 621 179 283
1.05 1349.05 849 257 540
1.40 1349.40 1,086 338 878
1.75 1349.75 1,331 423 1,301
2.10 1350.10 1,586 510 1,811
2.45 1350.45 1,849 601 2,412
2.80 1350.80 2,121 694 3,106
3.15 1351.15 2,401 791 3,897
3.50 1351.50 2,691 891 4,788
3.85 1351.85 2,989 994 5,782
4.20 1352.20 3,297 1,100 6,882
4.55 1352.55 3,613 1,209 8,090
4.90 1352.90 3,938 1,321 9,411
5.25 1353.25 4,271 1,436 10,848
5.60 1353.60 4,614 1,555 12,402
5.95 1353.95 4,965 1,676 14,078
6.30 1354.30 5,325 1,801 15,879
6.65 1354.65 5,694 1,928 17,807
7.00 1355.00 6,072 2,059 19,866
2-yr 5-yr 10-yr 25-yr Trapezoid
Total Storage (cuft) 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
E le v ft
S ta g e (ft)
Stage-Storage
File: Pond Hydro R1.hys
01-12-2026
Detention Pond Stage-Discharge
Culvert / Orifices
Rise, in
Span, in
No. Barrels
Invert Elevation, ft
Orifice Coefficient, Co
Length, ft
Barrel Slope, %
N-Value, n
Cir Culvert Orifice
1 2 3
1 1
1348.00
0.60 0.60
0.012
Orifice Plate
Orifice Dia, in
No. Orifices
Invert Elevation, ft
Height, ft
Orifice Coefficient, Co
Weirs
Shape / Type
Crest Elevation, ft
Crest Length, ft
Angle, deg
Weir Coefficient, Cw
Riser Weir
1 (m) 2 3
Circular Compound
1354.5 1351 U
1348.01 L
13.5
1.8 Total
.8 L
3.3 3.3
Ancillary
Exfiltration, in/hr m = Flows through Culvert, i = Independent
Top of Pond 2-yr 5-yr 10-yr 25-yr Pond Outflow
Discharge (cfs) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52
E le v ft
S ta g e (ft)
Stage-Discharge
File: Pond Hydro R1.hys
01-12-2026
Detention Pond Stage-Storage-Discharge Summary
Stage (ft)
Elev.
(ft)
Storage (cuft)
Culvert (cfs)
Orifices, cfs
1 2 3
Riser (cfs)
Weirs, cfs
1 2 3
Pf Riser (cfs)
Exfil (cfs)
User (cfs)
Total (cfs)
0.00 1348.00 0.000 0.000 0.000 0.000 0.000
0.35 1348.35 104 0.392 ic 0.000 0.392 s 0.392
0.70 1348.70 283 1.204 ic 0.000 1.204 s 1.204
1.05 1349.05 540 2.291 ic 0.000 2.291 s 2.291
1.40 1349.40 878 3.605 ic 0.000 3.605 s 3.605
1.75 1349.75 1,301 5.110 ic 0.000 5.110 s 5.110
2.10 1350.10 1,811 6.783 ic 0.000 6.783 s 6.783
2.45 1350.45 2,412 8.590 ic 0.000 8.590 s 8.590
2.80 1350.80 3,106 10.58 ic 0.000 10.58 s 10.58
3.15 1351.15 3,897 12.81 ic 0.000 12.81 s 12.81
3.50 1351.50 4,788 15.71 ic 0.000 15.71 s 15.71
3.85 1351.85 5,782 18.89 oc 0.000 18.89 s 18.89
4.20 1352.20 6,882 21.80 oc 0.000 21.80 s 21.80
4.55 1352.55 8,090 25.21 oc 0.000 25.21 s 25.21
4.90 1352.90 9,411 29.09 oc 0.000 29.09 s 29.09
5.25 1353.25 10,848 32.96 oc 0.000 32.96 s 32.96
5.60 1353.60 12,402 36.59 ic 0.000 36.59 s 36.59
5.95 1353.95 14,078 39.78 ic 0.000 39.78 s 39.78
6.30 1354.30 15,879 42.79 ic 0.000 42.79 s 42.79
6.65 1354.65 17,807 46.61 ic 2.589 44.02 s 46.61
7.00 1355.00 19,866 52.78 ic 15.75 37.03 s 52.78
Suffix key: ic = inlet control, oc = outlet control, s = submerged weir
File: Pond Hydro R1.hys
01-12-2026
Detention Pond Pond Drawdown
S ta g e v s.
D ra in
T im e
D ra in T im e
H rs
.0
.1
.1
.2
.2
.3
.3
.4
.4
.5
.5
.6
.6
.7
.7
.8
Elev (ft) 1
Stage (ft)
01234567
D e te n ti o n P o n d
D ra in T im e
Design Storm Report Custom Storm filename: Type II 24-hr 2019-01-08.cds
Hydrology Studio v 3.0.0.41 01-12-2026
Storm Distribution: NRCS/SCS - Type II, 24-hr
Total Rainfall Volume (in)Storm
Duration 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr
24 hrs 3.86 4.38 0.00 5.24 5.98 7.00 7.80 8.61
Incremental Rainfall Distribution, 2-yr
Time Time Time Time TimePrecip Precip Precip Precip Precip
(hrs) (hrs) (hrs) (hrs) (hrs)(in) (in) (in) (in) (in)
11.42 0.008118
11.43 0.008234
11.45 0.008351
11.47 0.008468
11.48 0.008585
11.50 0.008702
11.52 0.010233
11.53 0.013082
11.55 0.015963
11.57 0.018844
11.58 0.021725
11.60 0.024606
11.62 0.027487
11.63 0.030368
11.65 0.033249
11.67 0.036130
11.68 0.039011
11.70 0.041892
11.72 0.044773
11.73 0.047655
11.75 0.050536
11.77 0.055556
11.78 0.063993
11.80 0.072007
11.82 0.080021
11.83 0.088035
11.85 0.096049
11.87 0.104062
11.88 0.112076
11.90 0.120090
11.92 0.128104
11.93 0.083769
11.95 0.078505
11.97 0.060267
11.98 0.042030
12.00 0.023792
12.02 0.015025
12.03 0.014257
12.05 0.013979
12.07 0.013702
12.08 0.013425
12.10 0.013147
12.12 0.012870
12.13 0.012593
12.15 0.012315
12.17 0.012038
12.18 0.011760
12.20 0.011483
12.22 0.011205
12.23 0.010928
12.25 0.010651
12.27 0.010373
12.28 0.010096
12.30 0.009819
12.32 0.009541
Time (hrs) 0 2 4 6 8 10 12 14 16 18 20 22 24
P re ci p in
P re cip (in
Hydrograph 5-yr Summary
File: Pond Hydro R1.hys
01-12-2026
Hyd.
No.
Hydrograph
Type
Hydrograph
Name
Peak
Flow
(cfs)
Time to
Peak
(hrs)
Hydrograph
Volume
(cuft)
Inflow
Hyd(s)
Maximum
Elevation
(ft)
Maximum
Storage
(cuft)
1 NRCS Runoff Pre-Development 22.39 12.03 58,472 ----
2 NRCS Runoff Post-Development 25.63 12.03 66,012 ----
3 Pond Route Pond Route 24.12 12.05 65,943 2 1351.62 5,109
File: Pond Hydro R1.hys
01-12-2026
Pre-Development Hyd. No. 1
Hydrograph Type = NRCS Runoff Peak Flow = 22.39 cfs
Storm Frequency = 5-yr Time to Peak = 12.03 hrs
Time Interval = 1 min Runoff Volume = 58,472 cuft
Drainage Area = 9.84 ac Curve Number = 63.00
Tc Method = User Time of Conc. (Tc) = 12.0 min
Total Rainfall = 5.24 in Design Storm = Type II
Storm Duration = 24 hrs Shape Factor = 484
Time (hrs) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Q cf s)
Qp = 22.39 cfs
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
11.37 0.237
11.38 0.253
11.40 0.270
11.42 0.288
11.43 0.306
11.45 0.325
11.47 0.344
11.48 0.364
11.50 0.385
11.52 0.407
11.53 0.434
11.55 0.468
11.57 0.512
11.58 0.570
11.60 0.646
11.62 0.745
11.63 0.872
11.65 1.031
11.67 1.225
11.68 1.456
11.70 1.728
11.72 2.044
11.73 2.406
11.75 2.818
11.77 3.287
11.78 3.829
11.80 4.460
11.82 5.199
11.83 6.066
11.85 7.085
11.87 8.281
11.88 9.683
11.90 11.31
11.92 13.19
11.93 15.11
11.95 17.04
11.97 18.84
11.98 20.39
12.00 21.57
12.02 22.26
12.03 22.39
12.05 21.89
12.07 20.98
12.08 19.70
12.10 18.16
12.12 16.47
12.13 14.76
12.15 13.10
12.17 11.53
12.18 10.06
12.20 8.708
12.22 7.508
12.23 6.486
12.25 5.672
12.27 5.098
12.28 4.675
12.30 4.397
12.32 4.225
12.33 4.118
12.35 4.032
12.37 3.946
12.38 3.860
12.40 3.772
12.42 3.683
12.43 3.594
12.45 3.504
12.47 3.412
12.48 3.321
12.50 3.228
12.52 3.135
12.53 3.043
12.55 2.952
12.57 2.864
12.58 2.780
12.60 2.700
12.62 2.626
12.63 2.559
12.65 2.498
12.67 2.444
12.68 2.396
12.70 2.353
12.72 2.314
12.73 2.280
12.75 2.250
12.77 2.222
12.78 2.197
12.80 2.174
12.82 2.152
12.83 2.131
12.85 2.110
12.87 2.089
12.88 2.067
12.90 2.046
12.92 2.025
12.93 2.003
12.95 1.982
12.97 1.960
12.98 1.938
13.00 1.917
13.02 1.895
13.03 1.873
13.05 1.852
13.07 1.831
13.08 1.810
13.10 1.790
13.12 1.771
13.13 1.753
13.15 1.736
13.17 1.719
13.18 1.704
13.20 1.689
13.22 1.675
13.23 1.661
13.25 1.648
13.27 1.635
13.28 1.623
13.30 1.611
13.32 1.599
13.33 1.587
13.35 1.575
13.37 1.564
13.38 1.552
13.40 1.540
13.42 1.528
13.43 1.516
13.45 1.504
13.47 1.492
13.48 1.479
13.50 1.467
13.52 1.455
13.53 1.443
13.55 1.431
13.57 1.419
13.58 1.407
13.60 1.396
13.62 1.384
13.63 1.373
13.65 1.363
13.67 1.352
13.68 1.342
13.70 1.333
13.72 1.323
13.73 1.314
13.75 1.304
13.77 1.295
13.78 1.286
13.80 1.277
13.82 1.268
13.83 1.259
13.85 1.251
13.87 1.242
13.88 1.233
13.90 1.224
13.92 1.215
13.93 1.206
13.95 1.197
13.97 1.188
13.98 1.179
14.00 1.170
14.02 1.161
14.03 1.152
14.05 1.143
14.07 1.135
14.08 1.127
14.10 1.119
14.12 1.111
14.13 1.105
14.15 1.099
14.17 1.093
14.18 1.088
14.20 1.083
14.22 1.079
14.23 1.075
14.25 1.071
14.27 1.067
14.28 1.064
14.30 1.061
14.32 1.058
14.33 1.055
14.35 1.052
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
14.37 1.049
14.38 1.046
14.40 1.043
14.42 1.041
14.43 1.038
14.45 1.035
14.47 1.032
14.48 1.029
14.50 1.026
14.52 1.023
14.53 1.020
14.55 1.017
14.57 1.014
14.58 1.011
14.60 1.008
14.62 1.005
14.63 1.002
14.65 0.999
14.67 0.996
14.68 0.993
14.70 0.990
14.72 0.987
14.73 0.984
14.75 0.981
14.77 0.978
14.78 0.975
14.80 0.972
14.82 0.968
14.83 0.965
14.85 0.962
14.87 0.959
14.88 0.956
14.90 0.953
14.92 0.950
14.93 0.947
14.95 0.944
14.97 0.941
14.98 0.938
15.00 0.934
15.02 0.931
15.03 0.928
15.05 0.925
15.07 0.922
15.08 0.919
15.10 0.916
15.12 0.912
15.13 0.909
15.15 0.906
15.17 0.903
15.18 0.900
15.20 0.897
15.22 0.893
15.23 0.890
15.25 0.887
15.27 0.884
15.28 0.881
15.30 0.878
15.32 0.874
15.33 0.871
15.35 0.868
15.37 0.865
15.38 0.861
15.40 0.858
15.42 0.855
15.43 0.852
15.45 0.849
15.47 0.845
15.48 0.842
15.50 0.839
15.52 0.836
15.53 0.832
15.55 0.829
15.57 0.826
15.58 0.823
15.60 0.819
15.62 0.816
15.63 0.813
15.65 0.809
15.67 0.806
15.68 0.803
15.70 0.800
15.72 0.796
15.73 0.793
15.75 0.790
15.77 0.786
15.78 0.783
15.80 0.780
15.82 0.776
15.83 0.773
15.85 0.770
15.87 0.766
15.88 0.763
15.90 0.760
15.92 0.756
15.93 0.753
15.95 0.750
15.97 0.746
15.98 0.743
16.00 0.740
16.02 0.736
16.03 0.733
16.05 0.730
16.07 0.727
16.08 0.723
16.10 0.721
16.12 0.718
16.13 0.715
16.15 0.713
16.17 0.711
16.18 0.709
16.20 0.707
16.22 0.706
16.23 0.704
16.25 0.703
16.27 0.701
16.28 0.700
16.30 0.699
16.32 0.698
16.33 0.697
16.35 0.696
16.37 0.695
16.38 0.694
16.40 0.692
16.42 0.691
16.43 0.690
16.45 0.689
16.47 0.688
16.48 0.687
16.50 0.686
16.52 0.685
16.53 0.684
16.55 0.683
16.57 0.681
16.58 0.680
16.60 0.679
16.62 0.678
16.63 0.677
16.65 0.676
16.67 0.675
16.68 0.674
16.70 0.672
16.72 0.671
16.73 0.670
16.75 0.669
16.77 0.668
16.78 0.667
16.80 0.666
16.82 0.665
16.83 0.663
16.85 0.662
16.87 0.661
16.88 0.660
16.90 0.659
16.92 0.658
16.93 0.657
16.95 0.656
16.97 0.654
16.98 0.653
17.00 0.652
17.02 0.651
17.03 0.650
17.05 0.649
17.07 0.648
17.08 0.646
17.10 0.645
17.12 0.644
17.13 0.643
17.15 0.642
17.17 0.641
17.18 0.640
17.20 0.638
17.22 0.637
17.23 0.636
17.25 0.635
17.27 0.634
17.28 0.633
17.30 0.631
17.32 0.630
17.33 0.629
17.35 0.628
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
17.37 0.627
17.38 0.626
17.40 0.624
17.42 0.623
17.43 0.622
17.45 0.621
17.47 0.620
17.48 0.619
17.50 0.617
17.52 0.616
17.53 0.615
17.55 0.614
17.57 0.613
17.58 0.612
17.60 0.610
17.62 0.609
17.63 0.608
17.65 0.607
17.67 0.606
17.68 0.605
17.70 0.603
17.72 0.602
17.73 0.601
17.75 0.600
17.77 0.599
17.78 0.597
17.80 0.596
17.82 0.595
17.83 0.594
17.85 0.593
17.87 0.592
17.88 0.590
17.90 0.589
17.92 0.588
17.93 0.587
17.95 0.586
17.97 0.584
17.98 0.583
18.00 0.582
18.02 0.581
18.03 0.580
18.05 0.578
18.07 0.577
18.08 0.576
18.10 0.575
18.12 0.574
18.13 0.572
18.15 0.571
18.17 0.570
18.18 0.569
18.20 0.568
18.22 0.566
18.23 0.565
18.25 0.564
18.27 0.563
18.28 0.561
18.30 0.560
18.32 0.559
18.33 0.558
18.35 0.557
18.37 0.555
18.38 0.554
18.40 0.553
18.42 0.552
18.43 0.551
18.45 0.549
18.47 0.548
18.48 0.547
18.50 0.546
18.52 0.544
18.53 0.543
18.55 0.542
18.57 0.541
18.58 0.540
18.60 0.538
18.62 0.537
18.63 0.536
18.65 0.535
18.67 0.533
18.68 0.532
18.70 0.531
18.72 0.530
18.73 0.528
18.75 0.527
18.77 0.526
18.78 0.525
18.80 0.523
18.82 0.522
18.83 0.521
18.85 0.520
18.87 0.519
18.88 0.517
18.90 0.516
18.92 0.515
18.93 0.514
18.95 0.512
18.97 0.511
18.98 0.510
19.00 0.509
19.02 0.507
19.03 0.506
19.05 0.505
19.07 0.504
19.08 0.502
19.10 0.501
19.12 0.500
19.13 0.499
19.15 0.497
19.17 0.496
19.18 0.495
19.20 0.494
19.22 0.492
19.23 0.491
19.25 0.490
19.27 0.489
19.28 0.487
19.30 0.486
19.32 0.485
19.33 0.484
19.35 0.482
19.37 0.481
19.38 0.480
19.40 0.478
19.42 0.477
19.43 0.476
19.45 0.475
19.47 0.473
19.48 0.472
19.50 0.471
19.52 0.470
19.53 0.468
19.55 0.467
19.57 0.466
19.58 0.465
19.60 0.463
19.62 0.462
19.63 0.461
19.65 0.459
19.67 0.458
19.68 0.457
19.70 0.456
19.72 0.454
19.73 0.453
19.75 0.452
19.77 0.451
19.78 0.449
19.80 0.448
19.82 0.447
19.83 0.445
19.85 0.444
19.87 0.443
19.88 0.442
19.90 0.440
19.92 0.439
19.93 0.438
19.95 0.436
19.97 0.435
19.98 0.434
20.00 0.433
20.02 0.431
20.03 0.430
20.05 0.429
20.07 0.428
20.08 0.426
20.10 0.425
20.12 0.424
20.13 0.424
20.15 0.423
20.17 0.422
20.18 0.421
20.20 0.421
20.22 0.420
20.23 0.420
20.25 0.420
20.27 0.419
20.28 0.419
20.30 0.419
20.32 0.419
20.33 0.418
20.35 0.418
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
20.37 0.418
20.38 0.418
20.40 0.418
20.42 0.417
20.43 0.417
20.45 0.417
20.47 0.417
20.48 0.417
20.50 0.416
20.52 0.416
20.53 0.416
20.55 0.416
20.57 0.415
20.58 0.415
20.60 0.415
20.62 0.415
20.63 0.415
20.65 0.414
20.67 0.414
20.68 0.414
20.70 0.414
20.72 0.414
20.73 0.413
20.75 0.413
20.77 0.413
20.78 0.413
20.80 0.412
20.82 0.412
20.83 0.412
20.85 0.412
20.87 0.412
20.88 0.411
20.90 0.411
20.92 0.411
20.93 0.411
20.95 0.410
20.97 0.410
20.98 0.410
21.00 0.410
21.02 0.410
21.03 0.409
21.05 0.409
21.07 0.409
21.08 0.409
21.10 0.408
21.12 0.408
21.13 0.408
21.15 0.408
21.17 0.408
21.18 0.407
21.20 0.407
21.22 0.407
21.23 0.407
21.25 0.407
21.27 0.406
21.28 0.406
21.30 0.406
21.32 0.406
21.33 0.405
21.35 0.405
21.37 0.405
21.38 0.405
21.40 0.405
21.42 0.404
21.43 0.404
21.45 0.404
21.47 0.404
21.48 0.403
21.50 0.403
21.52 0.403
21.53 0.403
21.55 0.403
21.57 0.402
21.58 0.402
21.60 0.402
21.62 0.402
21.63 0.401
21.65 0.401
21.67 0.401
21.68 0.401
21.70 0.401
21.72 0.400
21.73 0.400
21.75 0.400
21.77 0.400
21.78 0.399
21.80 0.399
21.82 0.399
21.83 0.399
21.85 0.398
21.87 0.398
21.88 0.398
21.90 0.398
21.92 0.398
21.93 0.397
21.95 0.397
21.97 0.397
21.98 0.397
22.00 0.396
22.02 0.396
22.03 0.396
22.05 0.396
22.07 0.396
22.08 0.395
22.10 0.395
22.12 0.395
22.13 0.395
22.15 0.394
22.17 0.394
22.18 0.394
22.20 0.394
22.22 0.394
22.23 0.393
22.25 0.393
22.27 0.393
22.28 0.393
22.30 0.392
22.32 0.392
22.33 0.392
22.35 0.392
22.37 0.391
22.38 0.391
22.40 0.391
22.42 0.391
22.43 0.391
22.45 0.390
22.47 0.390
22.48 0.390
22.50 0.390
22.52 0.389
22.53 0.389
22.55 0.389
22.57 0.389
22.58 0.388
22.60 0.388
22.62 0.388
22.63 0.388
22.65 0.388
22.67 0.387
22.68 0.387
22.70 0.387
22.72 0.387
22.73 0.386
22.75 0.386
22.77 0.386
22.78 0.386
22.80 0.385
22.82 0.385
22.83 0.385
22.85 0.385
22.87 0.385
22.88 0.384
22.90 0.384
22.92 0.384
22.93 0.384
22.95 0.383
22.97 0.383
22.98 0.383
23.00 0.383
23.02 0.382
23.03 0.382
23.05 0.382
23.07 0.382
23.08 0.382
23.10 0.381
23.12 0.381
23.13 0.381
23.15 0.381
23.17 0.380
23.18 0.380
23.20 0.380
23.22 0.380
23.23 0.379
23.25 0.379
23.27 0.379
23.28 0.379
23.30 0.378
23.32 0.378
23.33 0.378
23.35 0.378
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
23.37 0.378
23.38 0.377
23.40 0.377
23.42 0.377
23.43 0.377
23.45 0.376
23.47 0.376
23.48 0.376
23.50 0.376
23.52 0.375
23.53 0.375
23.55 0.375
23.57 0.375
23.58 0.374
23.60 0.374
23.62 0.374
23.63 0.374
23.65 0.374
23.67 0.373
23.68 0.373
23.70 0.373
23.72 0.373
23.73 0.372
23.75 0.372
23.77 0.372
23.78 0.372
23.80 0.371
23.82 0.371
23.83 0.371
23.85 0.371
23.87 0.370
23.88 0.370
23.90 0.370
23.92 0.370
23.93 0.370
23.95 0.369
23.97 0.369
23.98 0.369
24.00 0.369
24.02 0.364
24.03 0.355
24.05 0.342
24.07 0.324
24.08 0.302
24.10 0.276
24.12 0.245
24.13 0.210
File: Pond Hydro R1.hys
01-12-2026
Post-Development Hyd. No. 2
Hydrograph Type = NRCS Runoff Peak Flow = 25.63 cfs
Storm Frequency = 5-yr Time to Peak = 12.03 hrs
Time Interval = 1 min Runoff Volume = 66,012 cuft
Drainage Area = 9.84 ac Curve Number = 65.80
Tc Method = User Time of Conc. (Tc) = 12.0 min
Total Rainfall = 5.24 in Design Storm = Type II
Storm Duration = 24 hrs Shape Factor = 484
Time (hrs) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Q cf s)
Qp = 25.63 cfs
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
11.15 0.265
11.17 0.278
11.18 0.291
11.20 0.306
11.22 0.321
11.23 0.336
11.25 0.352
11.27 0.369
11.28 0.387
11.30 0.405
11.32 0.424
11.33 0.443
11.35 0.463
11.37 0.484
11.38 0.505
11.40 0.527
11.42 0.549
11.43 0.572
11.45 0.596
11.47 0.620
11.48 0.645
11.50 0.670
11.52 0.698
11.53 0.732
11.55 0.777
11.57 0.836
11.58 0.914
11.60 1.018
11.62 1.153
11.63 1.325
11.65 1.540
11.67 1.798
11.68 2.102
11.70 2.455
11.72 2.859
11.73 3.316
11.75 3.828
11.77 4.403
11.78 5.058
11.80 5.812
11.82 6.684
11.83 7.698
11.85 8.876
11.87 10.25
11.88 11.84
11.90 13.68
11.92 15.78
11.93 17.92
11.95 20.03
11.97 22.00
11.98 23.67
12.00 24.90
12.02 25.58
12.03 25.63
12.05 24.97
12.07 23.87
12.08 22.35
12.10 20.55
12.12 18.59
12.13 16.62
12.15 14.72
12.17 12.92
12.18 11.24
12.20 9.707
12.22 8.350
12.23 7.198
12.25 6.283
12.27 5.639
12.28 5.166
12.30 4.855
12.32 4.663
12.33 4.543
12.35 4.446
12.37 4.349
12.38 4.252
12.40 4.154
12.42 4.055
12.43 3.955
12.45 3.854
12.47 3.753
12.48 3.650
12.50 3.547
12.52 3.444
12.53 3.342
12.55 3.241
12.57 3.144
12.58 3.051
12.60 2.962
12.62 2.881
12.63 2.806
12.65 2.739
12.67 2.679
12.68 2.626
12.70 2.578
12.72 2.535
12.73 2.497
12.75 2.463
12.77 2.432
12.78 2.404
12.80 2.378
12.82 2.354
12.83 2.331
12.85 2.307
12.87 2.284
12.88 2.260
12.90 2.237
12.92 2.213
12.93 2.189
12.95 2.165
12.97 2.141
12.98 2.117
13.00 2.093
13.02 2.069
13.03 2.045
13.05 2.021
13.07 1.998
13.08 1.975
13.10 1.953
13.12 1.932
13.13 1.912
13.15 1.893
13.17 1.875
13.18 1.858
13.20 1.841
13.22 1.826
13.23 1.811
13.25 1.796
13.27 1.782
13.28 1.769
13.30 1.755
13.32 1.742
13.33 1.729
13.35 1.716
13.37 1.703
13.38 1.689
13.40 1.676
13.42 1.663
13.43 1.650
13.45 1.636
13.47 1.623
13.48 1.610
13.50 1.596
13.52 1.583
13.53 1.570
13.55 1.556
13.57 1.543
13.58 1.530
13.60 1.517
13.62 1.505
13.63 1.493
13.65 1.481
13.67 1.470
13.68 1.459
13.70 1.448
13.72 1.438
13.73 1.427
13.75 1.417
13.77 1.407
13.78 1.397
13.80 1.387
13.82 1.377
13.83 1.368
13.85 1.358
13.87 1.348
13.88 1.338
13.90 1.329
13.92 1.319
13.93 1.309
13.95 1.299
13.97 1.289
13.98 1.279
14.00 1.269
14.02 1.260
14.03 1.250
14.05 1.240
14.07 1.231
14.08 1.222
14.10 1.213
14.12 1.205
14.13 1.198
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
14.15 1.191
14.17 1.185
14.18 1.179
14.20 1.174
14.22 1.169
14.23 1.165
14.25 1.161
14.27 1.157
14.28 1.153
14.30 1.150
14.32 1.147
14.33 1.143
14.35 1.140
14.37 1.137
14.38 1.134
14.40 1.130
14.42 1.127
14.43 1.124
14.45 1.121
14.47 1.117
14.48 1.114
14.50 1.111
14.52 1.107
14.53 1.104
14.55 1.101
14.57 1.098
14.58 1.094
14.60 1.091
14.62 1.088
14.63 1.084
14.65 1.081
14.67 1.078
14.68 1.074
14.70 1.071
14.72 1.068
14.73 1.064
14.75 1.061
14.77 1.058
14.78 1.054
14.80 1.051
14.82 1.047
14.83 1.044
14.85 1.041
14.87 1.037
14.88 1.034
14.90 1.031
14.92 1.027
14.93 1.024
14.95 1.020
14.97 1.017
14.98 1.013
15.00 1.010
15.02 1.007
15.03 1.003
15.05 1.000
15.07 0.996
15.08 0.993
15.10 0.989
15.12 0.986
15.13 0.983
15.15 0.979
15.17 0.976
15.18 0.972
15.20 0.969
15.22 0.965
15.23 0.962
15.25 0.958
15.27 0.955
15.28 0.951
15.30 0.948
15.32 0.944
15.33 0.941
15.35 0.937
15.37 0.934
15.38 0.930
15.40 0.927
15.42 0.923
15.43 0.920
15.45 0.916
15.47 0.912
15.48 0.909
15.50 0.905
15.52 0.902
15.53 0.898
15.55 0.895
15.57 0.891
15.58 0.888
15.60 0.884
15.62 0.880
15.63 0.877
15.65 0.873
15.67 0.870
15.68 0.866
15.70 0.862
15.72 0.859
15.73 0.855
15.75 0.852
15.77 0.848
15.78 0.844
15.80 0.841
15.82 0.837
15.83 0.834
15.85 0.830
15.87 0.826
15.88 0.823
15.90 0.819
15.92 0.815
15.93 0.812
15.95 0.808
15.97 0.805
15.98 0.801
16.00 0.797
16.02 0.794
16.03 0.790
16.05 0.786
16.07 0.783
16.08 0.780
16.10 0.777
16.12 0.774
16.13 0.771
16.15 0.768
16.17 0.766
16.18 0.764
16.20 0.762
16.22 0.760
16.23 0.759
16.25 0.757
16.27 0.756
16.28 0.754
16.30 0.753
16.32 0.752
16.33 0.751
16.35 0.749
16.37 0.748
16.38 0.747
16.40 0.746
16.42 0.745
16.43 0.743
16.45 0.742
16.47 0.741
16.48 0.740
16.50 0.738
16.52 0.737
16.53 0.736
16.55 0.735
16.57 0.734
16.58 0.732
16.60 0.731
16.62 0.730
16.63 0.729
16.65 0.727
16.67 0.726
16.68 0.725
16.70 0.724
16.72 0.723
16.73 0.721
16.75 0.720
16.77 0.719
16.78 0.718
16.80 0.716
16.82 0.715
16.83 0.714
16.85 0.713
16.87 0.711
16.88 0.710
16.90 0.709
16.92 0.708
16.93 0.706
16.95 0.705
16.97 0.704
16.98 0.703
17.00 0.701
17.02 0.700
17.03 0.699
17.05 0.698
17.07 0.696
17.08 0.695
17.10 0.694
17.12 0.693
17.13 0.691
Time Time Time Time TimeOutflow Outflow Outflow Outflow Outflow
(hrs) (hrs) (hrs) (hrs) (hrs)(cfs) (cfs) (cfs) (cfs) (cfs)
17.15 0.690
17.17 0.689
17.18 0.688
17.20 0.686
17.22 0.685
17.23 0.684
17.25 0.683
17.27 0.681
17.28 0.680
17.30 0.679
17.32 0.678
17.33 0.676
17.35 0.675
17.37 0.674
17.38 0.672
17.40 0.671
17.42 0.670
17.43 0.669
17.45 0.667
17.47 0.666
17.48 0.665
17.50 0.664
17.52 0.662
17.53 0.661
17.55 0.660
17.57 0.658
17.58 0.657
17.60 0.656
17.62 0.655
17.63 0.653
17.65 0.652
17.67 0.651
17.68 0.649
17.70 0.648
17.72 0.647
17.73 0.646
17.75 0.644
17.77 0.643
17.78 0.642
17.80 0.640
17.82 0.639
17.83 0.638
17.85 0.637
17.87 0.635
17.88 0.634
17.90 0.633
17.92 0.631
17.93 0.630
17.95 0.629
17.97 0.627
17.98 0.626
18.00 0.625
18.02 0.624
18.03 0.622
18.05 0.621
18.07 0.620
18.08 0.618
18.10 0.617
18.12 0.616
18.13 0.614
18.15 0.613
18.17 0.612
18.18 0.610
18.20 0.609
18.22 0.608
18.23 0.607
18.25 0.605
18.27 0.604
18.28 0.603
18.30 0.601
18.32 0.600
18.33 0.599
18.35 0.597
18.37 0.596
18.38 0.595
18.40 0.593
18.42 0.592
18.43 0.591
18.45 0.589
18.47 0.588
18.48 0.587
18.50 0.585
18.52 0.584
18.53 0.583
18.55 0.581
18.57 0.580
18.58 0.579
18.60 0.577
18.62 0.576
18.63 0.575
18.65 0.573
18.67 0.572
18.68 0.571
18.70 0.569
18.72 0.568
18.73 0.567
18.75 0.565
18.77 0.564
18.78 0.563
18.80 0.561
18.82 0.560
18.83 0.559
18.85 0.557
18.87 0.556
18.88 0.555
18.90 0.553
18.92 0.552
18.93 0.551
18.95 0.549
18.97 0.548
18.98 0.547
19.00 0.545
19.02 0.544
19.03 0.543
19.05 0.541
19.07 0.540
19.08 0.539
19.10 0.537
19.12 0.536
19.13 0.534
19.15…
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