ESBD24402262026_Attachment C - Drainage Report-IFB 2026-B02.pdf

Prepared by:

3755 S. Capital of Texas Highway, Suite 325

Austin, TX 78704

September 2021

Garver Project No.: 20T47070

Hydraulic Report

Bear Creek Pass over Bear Creek

Hays County, Texas

Drainage and Low Water Crossings

09/28/2021

Hays County Drainage and Low Water Crossing Study

Bear Creek Pass Over Bear Creek

Garver Project No. 20T47070 Page 2

Engineer’s Certification I hereby certify that this Hydraulic Report for the study of Bear Creek Pass over Bear Creek was prepared by Garver under my direct supervision for Hays County.

Burt E. Weathersbee, PE State of Texas PE License 60205

Garver Texas Registration No.

F-5713

09/28/2021

Garver Project No. 20T47070 Page 3

Table of Contents

Engineer’s Certification

Table of Contents

List of Figures

List of Tables

List of Exhibits

1.0 Project Introduction

1.1 General

1.2 Existing Conditions

2.0 Hydrologic Analysis

2.1 Previous Hydrologic Studies

2.2 Garver Flows

2.2.1 HEC-HMS Model

2.2.2 Climatic Adjustment (Recommended)

2.2.3 Omega EM Regression Equations

3.0 Hydraulic Analysis

3.1 Development of Hydraulic Model

3.2 Existing Conditions

3.3 Proposed Culvert

3.4 Model Results

4.0 Conclusions

List of Figures

Figure 1: Location Map

Figure 2: Vicinity Map

Figure 3: Project Location

Figure 4: Existing Channel Conditions at Bear Creek Pass (Looking U/S)

Figure 5: Profile View of Existing Culvert Configuration at Upstream Cross Section (All Design Flood

Events)

Figure 6: Profile View of Proposed Culvert Configuration at Upstream Cross Section (All Design Flood

Events)

Garver Project No. 20T47070 Page 4

List of Tables

Table 1. Climate Adjustment Factors for Gauged Watersheds

Table 2. Bear Creek Flow Summary Table

Table 3: Existing Culvert Capacities

Table 4: Peak Discharge and Stage Upstream of Proposed Culvert (RS 61966)

List of Exhibits

Exhibit A Effective Flood Insurance Rate Map (FIRM)

Exhibit B Cross Section Layout Map

Exhibit C Floodplain Map

Exhibit D Existing Conditions Hydraulic Calculations

Exhibit E Proposed Conditions Hydraulic Calculations

Garver Project No. 20T47070 Page 5

1.0 Project Introduction

1.1 General

Hays County is proposing to replace the Bear Creek Pass low water culvert crossing over Bear Creek 0.4 miles south of FM 1826. The proposed improvements will include increasing the hydraulic capacity of the culverts and raising the existing profile grade to improve performance of the crossing during frequent storm events. Bear Creek is classified as Zone AE with a regulatory floodway on the Flood Insurance

Rate Map (FIRM) Panel 48209C0137F dated September 2, 2005. A Flood Insurance Study (FIS) is available for Hays County, Texas, dated September 2, 2005. See Figure 1 through Figure 3 for location and project maps.

The initial scope for this project assumed a 5-year design storm. The Texas Department of Transportation

(TxDOT) Hydraulic Design Manual (HDM) was not referenced during the selection of the design storm.

Upon further investigation, the 5-year storm was not used for design because of cost considerations and because the necessary culvert size would cause significant impact to the floodplain. The proposed crossings for this project were designed to pass a 2-year design storm.

Figure 1: Location Map

Hays County

Vicinity Map

Garver Project No. 20T47070 Page 6

Figure 2: Vicinity Map

Figure 3: Project Location

Project Location

Garver Project No. 20T47070 Page 7

1.2 Existing Conditions

The existing low water crossing at Bear Creek Pass is located approximately 2,000 ft south of the intersection of FM 1826 and Bear Creek Pass.

Figure 4: Existing Channel Conditions at Bear Creek Pass (Looking U/S)

The existing Bear Creek Pass crossing, shown in Figure 4, consists of five 1 ft diameter RCP culverts that run approximately 22 feet through the existing roadway. The pipe end sections project out from the existing grade slope. The upstream and downstream invert elevations of the RCPs are at approximately

878.3 feet and 877.9 feet respectively, which corresponds to a 1.8% culvert slope. The channel is approximately 70 feet wide and 5 feet deep at the downstream bounding cross section. A shallow weir spans Bear Creek approximately 20 feet upstream of Bear Creek Pass. The watershed upstream of the crossing consists of mostly open poorly grassed and sparsely wooded areas with several small neighborhoods.

2.0 Hydrologic Analysis

2.1 Previous Hydrologic Studies

The Hays County Floodplain Administrator provided Garver with Preliminary FEMA hydrology models which were developed by Halff Associates for this flooding source. Future conditions discharges included in the Halff models were calculated using detailed methods and application of HEC-HMS models. The

Halff future conditions discharges were used as comparison flows for this project.

Halff’s methodology is described in the Hays County Interim Feasibility Study – Phase IA dated February

2013. The drainage area was split into six subbasins. An SCS curve number of 81 was used for all subbasins. Initial abstraction values were estimated using the NRCS Curve Number equation and then

Garver Project No. 20T47070 Page 8 adjusted for calibration. The methodology for calibration is not included in the Halff report. The Modified

Puls method was used to route the runoff through the stream reach. A frequency storm analysis was applied using precipitation values taken from Water Resources Investigations Report by USGS developed in November 2001.

2.2 Garver Flows

2.2.1 HEC-HMS Model

The Garver hydrologic flows were calculated using U.S. Army Corps of Engineers’ (USACE) HEC-HMS software. Because the Halff hydrologic study is a more in-depth study than was included in Garver’s scope, the Halff HEC-HMS model was used as the basis for Garver’s model. The routing methodology, subbasin divisions, and calibrated initial abstraction values presented in the Interim Feasibility Study were used in the Garver hydrologic model.

Updated CN numbers were determined using aerial imagery, hydrologic soil types from USGS soil surveys, and the corresponding CN values from the TxDOT Hydraulic Design Manual (HDM). Time of concentration was calculated using the Kerby-Kirpich methodology discussed in Section 4.11 of the

TxDOT HDM, and subsequently used to calculate lag time. A frequency storm analysis was completed using precipitation values taken from Atlas 14.

2.2.2 Climatic Adjustment (Recommended)

Because of climate variation within Texas, the TxDOT HDM provides climate adjustment factors for CN values. This methodology is not standard, but it has been used successfully in the past to calibrate design flows to reasonable magnitudes. The adjustment factors are based on historic runoff and rainfall volumes for gauged watersheds in Texas. There are multiple gauged areas near the project area, which are shown in Table 1. Gage number 8158810 is located on Bear Creek approximately 3,000-ft downstream of the project site. The CN values for all subbasins were adjusted by minus 5.8 per the methodology described in the TxDOT HDM.

Table 1. Climate Adjustment Factors for Gauged Watersheds

USGS Guage ID CNdev

8158810 -5.8

8155200 -5.7

8158700 -5.5

8158820 -7.9

8158860 -8.0

2.2.3 Omega EM Regression Equations

For comparison purposes, flows were also computed using the Omega EM Texas Regression equations outlined in the TxDOT HDM. Because the overall drainage area for the project site is greater than 10 square miles, the site meets the criteria for this method. However, the regression equation method cannot utilize Atlas 14 precipitation values.

Table 2 shows the calculated flows for the various methodologies analyzed for this project.

Garver Project No. 20T47070 Page 9

Table 2. Bear Creek Flow Summary Table

Method Recurrence

2 5 10 25 50 100 500

Halff (HEC-HMS) 1239 4490 7776 12622 16397 20246 29666

Garver (HEC-HMS) 1913 4929 8554 14050 18498 23022 34447

Omega EM Regression 1054 2390 3449 5193 6758 8658 14263

3.0 Hydraulic Analysis

3.1 Development of Hydraulic Model

The hydraulics of the Bear Creek culvert crossings were analyzed using the USACE HEC-RAS river modeling program version 5.0.7. Models were created for both Existing and Proposed culvert configurations. Existing conditions models were modified from the preliminary FEMA study conducted by

Halff. To incorporate survey information collected for this project, a truncated and updated existing conditions model was developed. The proposed conditions model was then created to simulate the proposed culvert configurations. Boundary conditions for the Bear Creek crossing were set based on normal depth using the downstream channel slope.

The effective model was modified to change the representation of the weir immediately upstream of Bear

Creek Pass crossing. During scenarios with high submergence (over 95% submergence ratio), the weir should be modeled as an increase in the ground profile elevation per guidance in the HEC-RAS hydraulic reference manual. The updated existing conditions and proposed conditions models represent the small weir as a cross section with a minimum elevation set at the elevation of the weir (instead of an inline structure as it was modeled in the effective model). This modeling approach allows the water surface elevation to be calculated using the energy equation (standard step backwater) instead of the weir flow equations, as is appropriate for a weir with 95% or greater submergence ratio.

3.2 Existing Conditions

During this analysis, the 2-year flood event discharge was input into the HEC-RAS hydraulic model to analyze the performance of the existing crossing during a high-frequency storm event. Results from the model indicated the existing crossing has the following capacity during the 2-year storm.

Table 3: Existing Culvert Capacities

Crossing Culvert Size Design flow of 2-year event (cfs) Culvert Flow during 2-year event (cfs)

Overtopping Flow Depth (ft)

Bear Creek 5-12” RCP 1,913 31.8 3.70

Table 3 shows that the existing culverts are not sufficient to pass the 2-year storm flow. The 2-year storm causes substantial overtopping of the roadway in existing conditions.

Garver Project No. 20T47070 Page 10

3.3 Proposed Culvert

A low flow analysis was performed on the crossing locations to determine the culvert size necessary to pass the 5-year storm. The results of this analysis revealed that a crossing configuration designed to pass a 5-year storm is unreasonably expensive and excessively large. This conclusion led to the reduction of design storm for the project from a 5-year design flood event to a 2-year design flood event.

Due to the raised elevations of the proposed roadway from existing conditions and the proximity of the culvert headwall to the roadway, the crossing will require a guardrail. The roadway profile in the HEC-

RAS model includes an additional 2.25 ft above the proposed centerline elevation of the roadway to represent the guardrail. This assumes the guardrail is completely blocked with debris during a large storm. This assumption is valid in most hydraulic models due to the high likelihood of debris during a large storm event.

The culvert crossing on Bear Creek Pass over Bear Creek is recommended to consist of a five barrel 11 foot span by 4 foot rise reinforced concrete box culvert configuration (5—11’x4’ RCB). Each culvert barrel will utilize pre-cast concrete boxes per TxDOT standard design. The upstream invert will be placed at an elevation of 877.80 ft while the downstream will be placed at 877.67 ft. The culvert length will be 51 ft.

The proposed design will allow for the conveyance of the 2-year flood event (1,913 cfs). This provides a substantial improvement over the existing culvert capacity (31.8 cfs).

3.4 Model Results

Table 4 displays the water surface elevations (WSELs) at the upstream side of the proposed culvert, along with the anticipated WSEL rise for proposed conditions over existing. The design objective for this project was to pass the 2-year flow without overtopping the roadway and to cause no-rise in the 100-year

WSEL upstream of the proposed culvert. No adverse impacts to development in the floodplain were caused by rises in storms smaller than the 100-year. The proposed 5—11’x4’ box configuration with a minimum roadway elevation of 884.63 feet will provide the most efficient option for improvements at this location.

Table 4: Peak Discharge and Stage Upstream of Proposed Culvert (RS 61966)

Recurrence Interval (year)

Discharge (cfs)

Existing Conditions Water Surface Elevation (ft.)

(1)

Proposed Conditions Water Surface Elevation (ft.)

(2)

Difference (2)-(1)

2 1,913 882.98 883.53 0.55

5 4,929 885.11 889.13 4.02

10 8,554 887.29 891.18 3.89

25 14,050 890.90 892.67 1.77

50 18,498 893.25 893.52 0.27

100 23,022 894.73 894.59 -0.14

Garver Project No. 20T47070 Page 11

Figure 5 shows the profile view of the existing culvert configurations at the upstream cross section of the

Bear Creek Pass crossing. This figure shows the top of road elevation as well as the WSELs upstream of the crossing. This figure shows that all frequency storm events will overtop the road.

Figure 5: Profile View of Existing Culvert Configuration at Upstream Cross Section (All Design Flood

Events)

Figure 6 displays the proposed culvert configuration at the upstream side of Bear Creek Pass. This crossing was designed to pass the 2-year flood event without overtopping the roadway and have zero rise during the 100-year storm event. The proposed configuration does not cause a rise in the 100-year water surface elevation at this structure, even when assuming the guard rail is fully blocked with debris.

Figure 6: Profile View of Proposed Culvert Configuration at Upstream Cross Section (All Design Flood

Events)

Garver Project No. 20T47070 Page 12

Model results indicate a velocity of 13.50 fps downstream of the proposed Bear Creek crossing for the 2-year design storm. According to geotechnical investigation, limestone is present at the proposed inverts of the proposed culvert. With the reported geotechnical qualities, the limestone is considered to not be susceptible to scour according to the TxDOT Geotechnical Manual. Therefore, additional protection is not necessary on the channel bottom, but riprap is recommended on the channel banks downstream of the proposed crossing.

4.0 Conclusions

The existing low water crossing at Bear Creek Pass over Bear Creek was analyzed for its ability to convey minor storm events. The existing crossing is inundated during the 2-year storm event. Further analysis revealed that any culvert configuration that would pass a 5-year design storm is unreasonably large and expensive. This conclusion led to the reduction of design storm for the project from a 5-year design flood event to a 2-year design flood event.

A proposed culvert configuration of 5—11’x4’ RCBs at the Bear Creek crossing will provide the hydraulic capacity needed to pass the 2-year design flood event. The proposed 100-year backwater WSEL causes no rise when compared to existing conditions.

Garver Project No. 20T47070 Page 13

EXHIBIT A

Effective Flood Insurance Rate Map

(FIRM)

PROJECT LOCATION

Garver Project No. 20T47070 Page 14

EXHIBIT B

Cross Section Layout Map

61712

61457

61905

61995

6196661970

62028

59811

62295 62197 62102

62428

60217

62547

60638

62923

60665

60507

62767 62700

59102

59293 63700

Do cu me nt

Pa th:

L:

\20

\20

T4

- H ay s C o P ct

4 L ow

W ate r C ros sin gs

\G

IS\

Ma ps

\B ea r\C ros s S ec tio n L ay ou t M ap

.m xd

Us er

Na me

: A

GE

lm en do rf

Da te

Sa ve d:

7/2

1/2

1 4 :53

:13 P

M

0 250 500

Feet

Model Cross Sections

Proposed Roadway Centerline

River

§̈¦35

§̈¦35

§̈¦35

£¤290 £¤281

£¤183

£¤183 £¤290

LOCATION MAP

BEAR CREEK

CROSS SECTION LAYOUT

NAD83 State Plane Texas South Central

PROJECT LOCATION

Bear Creek Pass

Crosscreek Dr

FM 1826

Re un ion Bl vd

Emma

Bear Cree k

Margaret Cir

Loop

Bluff Trail

Garver Project No. 20T47070 Page 15

EXHIBIT C

Floodplain Map

Do cu me nt

Pa th:

\\g arv eri nc

.lo ca l\g da ta\ Pr oje cts

\20

\20 T4

- H ay s C o P ct 4 L ow W ate r C ros sin gs \G

IS\

Ma ps \B ea r\B ea r C k F loo dp lai n M ap

.m xd

Us er

Na me

: A

GE

lm en do rf

Da te

Sa ve d:

7/2

2/2

1 3 :42

:16 P

M

0 250 500

Feet

Existing Conditions 100-year Floodplain

Proposed Conditions 100-year Floodplain

River

LOCATION MAP

BEAR CREEK

FLOODPLAIN MAP

NAD83 State Plane Texas South Central

PROJECT LOCATION

Bear Creek Pass

Crosscreek Dr

FM 1826

Re un ion Bl vd

Emma

Bear Cree k

Margaret Cir

Loop

Bluff Trail

Crossing Location

Garver Project No. 20T47070 Page 16

EXHIBIT D

Existing Conditions

Hydraulic Calculations

HEC-RAS Plan: Existing River: Bear Creek Reach: Reach1

Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl

(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)

Reach1 63700 50% AEP 1913.00 884.62 890.87 888.44 891.17 0.004312 4.46 438.49 110.15 0.37

Reach1 63700 20% AEP 4929.00 884.62 893.92 890.77 894.57 0.004772 6.59 829.61 201.43 0.42

Reach1 63700 10% AEP 8554.00 884.62 896.17 892.81 897.02 0.004917 7.94 1374.47 236.99 0.44

Reach1 63700 4% AEP 14050.00 884.62 898.62 895.55 899.74 0.005160 9.43 1981.89 257.96 0.47

Reach1 63700 2% AEP 18498.00 884.62 900.17 896.82 901.50 0.005424 10.46 2394.70 274.81 0.49

Reach1 63700 1% AEP 23022.00 884.62 901.46 897.95 903.02 0.005774 11.45 2759.03 289.07 0.52

Reach1 63700 0.2% AEP 34447.00 884.62 904.10 900.34 906.20 0.006607 13.62 3560.79 321.14 0.57

Reach1 62923 50% AEP 1913.00 881.51 888.08 888.30 0.003150 3.77 510.50 136.42 0.33

Reach1 62923 20% AEP 4929.00 881.51 890.50 891.05 0.004237 5.99 885.20 214.40 0.42

Reach1 62923 10% AEP 8554.00 881.51 892.38 893.22 0.004845 7.60 1336.94 261.55 0.46

Reach1 62923 4% AEP 14050.00 881.51 894.72 895.83 0.004901 9.01 2084.99 372.01 0.49

Reach1 62923 2% AEP 18498.00 881.51 896.25 897.49 0.004847 9.80 2700.55 446.16 0.49

Reach1 62923 1% AEP 23022.00 881.51 897.65 898.94 0.004602 10.27 3344.58 488.65 0.49

Reach1 62923 0.2% AEP 34447.00 881.51 900.49 901.90 0.004302 11.26 4861.14 578.89 0.49

Reach1 62767 50% AEP 1913.00 880.89 887.70 883.83 887.89 0.002099 3.51 557.21 134.80 0.28

Reach1 62767 20% AEP 4929.00 880.89 889.85 886.73 890.41 0.003918 6.11 920.17 224.42 0.40

Reach1 62767 10% AEP 8554.00 880.89 891.43 888.60 892.39 0.005412 8.20 1311.52 287.11 0.49

Reach1 62767 4% AEP 14050.00 880.89 893.81 891.12 895.00 0.005321 9.56 2065.05 365.91 0.51

Reach1 62767 2% AEP 18498.00 880.89 895.51 892.72 896.73 0.004816 10.00 2703.61 387.11 0.49

Reach1 62767 1% AEP 23022.00 880.89 896.84 893.34 898.19 0.004841 10.72 3236.98 421.14 0.50

Reach1 62767 0.2% AEP 34447.00 880.89 899.46 895.97 901.11 0.005062 12.28 4452.81 496.48 0.53

Reach1 62742 Inl Struct

Reach1 62700 50% AEP 1913.00 880.31 885.39 885.68 0.003280 4.38 443.26 118.52 0.38

Reach1 62700 20% AEP 4929.00 880.31 888.67 889.22 0.002901 6.07 901.38 159.87 0.39

Reach1 62700 10% AEP 8554.00 880.31 891.12 891.91 0.003007 7.47 1439.24 254.02 0.42

Reach1 62700 4% AEP 14050.00 880.31 893.72 894.74 0.003086 8.85 2210.12 352.12 0.44

Reach1 62700 2% AEP 18498.00 880.31 895.34 896.47 0.003084 9.59 2811.16 390.11 0.45

Reach1 62700 1% AEP 23022.00 880.31 896.70 897.94 0.003107 10.24 3373.88 429.18 0.46

Reach1 62700 0.2% AEP 34447.00 880.31 899.33 900.83 0.003298 11.71 4579.27 482.85 0.49

Reach1 62547 50% AEP 1913.00 877.06 884.76 885.18 0.002819 5.34 426.19 119.28 0.37

Reach1 62547 20% AEP 4929.00 877.06 887.71 888.60 0.004021 8.21 874.30 183.83 0.47

Reach1 62547 10% AEP 8554.00 877.06 890.30 891.32 0.003868 9.47 1476.58 267.85 0.48

Reach1 62547 4% AEP 14050.00 877.06 893.11 894.21 0.003582 10.50 2356.74 360.95 0.48

Reach1 62547 2% AEP 18498.00 877.06 894.85 895.97 0.003391 11.00 3020.34 398.33 0.48

Reach1 62547 1% AEP 23022.00 877.06 896.24 897.41 0.003366 11.57 3590.59 429.64 0.48

Reach1 62547 0.2% AEP 34447.00 877.06 898.88 900.23 0.003502 12.93 4787.89 470.30 0.50

Reach1 62428 50% AEP 1913.00 875.72 884.62 884.88 0.001648 4.16 506.14 115.73 0.28

Reach1 62428 20% AEP 4929.00 875.72 887.44 888.13 0.002995 7.01 907.84 166.23 0.39

Reach1 62428 10% AEP 8554.00 875.72 889.92 890.87 0.003395 8.66 1425.93 242.18 0.43

Reach1 62428 4% AEP 14050.00 875.72 892.72 893.79 0.003328 9.83 2303.53 389.27 0.44

Reach1 62428 2% AEP 18498.00 875.72 894.52 895.57 0.003055 10.15 3054.19 436.19 0.43

Reach1 62428 1% AEP 23022.00 875.72 895.93 897.01 0.003010 10.62 3678.91 458.04 0.44

Reach1 62428 0.2% AEP 34447.00 875.72 898.56 899.81 0.003175 11.93 4974.10 521.76 0.46

Reach1 62295 50% AEP 1913.00 875.44 884.28 884.62 0.002200 4.77 459.37 132.42 0.32

Reach1 62295 20% AEP 4929.00 875.44 886.87 887.67 0.003766 7.75 863.62 173.09 0.45

Reach1 62295 10% AEP 8554.00 875.44 889.13 890.33 0.004547 9.84 1291.77 218.54 0.51

Reach1 62295 4% AEP 14050.00 875.44 892.04 893.29 0.004048 10.78 2169.44 386.38 0.50

Reach1 62295 2% AEP 18498.00 875.44 893.98 895.12 0.003474 10.85 2969.90 433.69 0.47

Reach1 62295 1% AEP 23022.00 875.44 895.36 896.56 0.003496 11.49 3601.84 478.97 0.48

Reach1 62295 0.2% AEP 34447.00 875.44 898.05 899.36 0.003500 12.62 4970.69 533.90 0.49

Reach1 62197 50% AEP 1913.00 875.09 884.06 884.40 0.002328 4.76 452.77 117.96 0.33

Reach1 62197 20% AEP 4929.00 875.09 886.25 887.24 0.004992 8.43 748.89 152.66 0.50

Reach1 62197 10% AEP 8554.00 875.09 888.13 889.75 0.006757 11.15 1078.45 201.81 0.60

Reach1 62197 4% AEP 14050.00 875.09 891.42 892.84 0.004906 11.36 2081.48 413.00 0.53

Reach1 62197 2% AEP 18498.00 875.09 893.65 894.77 0.003671 10.84 3110.38 502.12 0.47

Reach1 62197 1% AEP 23022.00 875.09 895.13 896.19 0.003312 10.92 3876.90 528.00 0.46

Reach1 62197 0.2% AEP 34447.00 875.09 897.91 898.97 0.003014 11.47 5400.04 567.30 0.45

Reach1 62102 50% AEP 1913.00 874.56 883.85 884.16 0.002472 4.51 480.39 153.71 0.34

Reach1 62102 20% AEP 4929.00 874.56 885.84 886.73 0.005057 7.92 815.09 183.28 0.51

Reach1 62102 10% AEP 8554.00 874.56 887.60 889.07 0.006661 10.46 1158.48 210.07 0.61

Reach1 62102 4% AEP 14050.00 874.56 890.84 892.35 0.005154 11.23 2029.01 384.82 0.56

Reach1 62102 2% AEP 18498.00 874.56 893.05 894.38 0.004043 11.10 2982.24 472.72 0.51

Reach1 62102 1% AEP 23022.00 874.56 894.51 895.82 0.003796 11.45 3700.24 517.73 0.50

Reach1 62102 0.2% AEP 34447.00 874.56 897.16 898.60 0.003797 12.67 5160.91 584.60 0.51

Reach1 62028 50% AEP 1913.00 875.82 883.72 883.98 0.002054 4.31 540.13 163.37 0.31

Reach1 62028 20% AEP 4929.00 875.82 885.61 886.33 0.004295 7.45 873.68 186.35 0.46

Reach1 62028 10% AEP 8554.00 875.82 887.41 888.52 0.005403 9.56 1223.59 203.38 0.54

Reach1 62028 4% AEP 14050.00 875.82 890.62 891.91 0.004806 10.88 2072.55 423.26 0.53

Reach1 62028 2% AEP 18498.00 875.82 893.06 894.00 0.003183 9.92 3221.54 501.98 0.44

HEC-RAS Plan: Existing River: Bear Creek Reach: Reach1 (Continued)

Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl

(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)

Reach1 62028 1% AEP 23022.00 875.82 894.55 895.45 0.002893 10.05 3993.14 540.11 0.43

Reach1 62028 0.2% AEP 34447.00 875.82 897.30 898.21 0.002675 10.68 6015.34 876.20 0.42

Reach1 61995 50% AEP 1913.00 880.50 882.84 882.84 883.75 0.028928 7.67 253.90 150.41 0.99

Reach1 61995 20% AEP 4929.00 880.50 884.65 884.46 886.01 0.018228 9.56 559.14 180.57 0.88

Reach1 61995 10% AEP 8554.00 880.50 886.88 888.25 0.010249 9.82 994.97 226.37 0.71

Reach1 61995 4% AEP 14050.00 880.50 890.67 891.68 0.004267 8.82 2194.68 497.97 0.50

Reach1 61995 2% AEP 18498.00 880.50 893.14 893.84 0.002506 7.86 3573.52 592.31 0.40

Reach1 61995 1% AEP 23022.00 880.50 894.64 895.30 0.002167 7.89 4554.01 837.25 0.38

Reach1 61995 0.2% AEP 34447.00 880.50 897.43 898.05 0.001807 8.16 7089.58 986.82 0.35

Reach1 61966 50% AEP 1913.00 878.15 882.98 880.82 883.18 0.002233 3.73 562.77 174.21 0.32

Reach1 61966 20% AEP 4929.00 878.15 885.11 882.71 885.55 0.003070 5.71 992.92 232.68 0.40

Reach1 61966 10% AEP 8554.00 878.15 887.29 884.24 887.86 0.002887 6.72 1529.53 259.90 0.40

Reach1 61966 4% AEP 14050.00 878.15 890.90 885.93 891.46 0.001970 7.00 2742.18 527.17 0.35

Reach1 61966 2% AEP 18498.00 878.15 893.25 887.03 893.71 0.001425 6.69 4088.12 658.88 0.31

Reach1 61966 1% AEP 23022.00 878.15 894.73 888.04 895.19 0.001326 6.88 5224.35 850.96 0.30

Reach1 61966 0.2% AEP 34447.00 878.15 897.49 891.14 897.96 0.001238 7.39 7709.42 971.37 0.30

Reach1 61948 Culvert

Reach1 61905 50% AEP 1913.00 876.24 880.55 879.85 881.17 0.013727 6.31 305.62 112.44 0.66

Reach1 61905 20% AEP 4929.00 876.24 883.79 881.84 884.55 0.006377 7.15 776.23 175.70 0.51

Reach1 61905 10% AEP 8554.00 876.24 886.86 883.70 887.65 0.004153 7.58 1365.72 210.49 0.44

Reach1 61905 4% AEP 14050.00 876.24 890.39 885.69 891.29 0.003293 8.38 2349.95 463.06 0.42

Reach1 61905 2% AEP 18498.00 876.24 892.80 887.01 893.58 0.002517 8.23 3816.65 781.42 0.37

Reach1 61905 1% AEP 23022.00 876.24 894.41 888.22 895.05 0.002029 7.91 5136.69 857.86 0.34

Reach1 61905 0.2% AEP 34447.00 876.24 897.31 893.12 897.85 0.001621 7.86 7856.02 1010.97 0.31

Reach1 61712 50% AEP 1913.00 871.91 879.15 879.56 0.004989 5.13 386.30 120.24 0.45

Reach1 61712 20% AEP 4929.00 871.91 883.14 883.66 0.002751 6.04 954.88 160.51 0.38

Reach1 61712 10% AEP 8554.00 871.91 886.32 887.00 0.002405 7.06 1514.78 194.52 0.37

Reach1 61712 4% AEP 14050.00 871.91 889.87 890.75 0.002312 8.32 2428.18 365.33 0.38

Reach1 61712 2% AEP 18498.00 871.91 892.28 893.13 0.001971 8.50 3604.93 625.44 0.36

Reach1 61712 1% AEP 23022.00 871.91 893.86 894.64 0.001791 8.59 4636.36 685.40 0.35

Reach1 61712 0.2% AEP 34447.00 871.91 896.61 897.43 0.001794 9.42 6746.39 840.41 0.36

Reach1 61457 50% AEP 1913.00 870.16 878.04 878.54 0.003203 5.91 389.25 79.73 0.40

Reach1 61457 20% AEP 4929.00 870.16 881.71 882.76 0.004118 8.92 738.03 110.42 0.49

Reach1 61457 10% AEP 8554.00 870.16 884.53 886.07 0.004743 11.22 1096.04 143.84 0.54

Reach1 61457 4% AEP 14050.00 870.16 887.85 889.82 0.004892 13.21 1622.62 195.99 0.57

Reach1 61457 2% AEP 18498.00 870.16 889.50 886.72 892.14 0.005984 15.57 2070.09 311.82 0.64

Reach1 61457 1% AEP 23022.00 870.16 890.93 887.24 893.68 0.006062 16.47 2552.53 399.94 0.65

Reach1 61457 0.2% AEP 34447.00 870.16 893.84 887.41 896.50 0.005736 17.56 3961.60 540.56 0.65

Reach1 61016 50% AEP 1913.00 869.82 877.06 877.36 0.002093 4.45 450.79 88.20 0.31

Reach1 61016 20% AEP 4929.00 869.82 880.37 881.07 0.003151 6.98 809.77 128.59 0.40

Reach1 61016 10% AEP 8554.00 869.82 883.10 884.10 0.003601 8.60 1182.97 145.19 0.43

Reach1 61016 4% AEP 14050.00 869.82 885.91 887.56 0.004920 11.27 1677.37 259.05 0.51

Reach1 61016 2% AEP 18498.00 869.82 887.71 889.47 0.005006 12.08 2223.94 341.16 0.52

Reach1 61016 1% AEP 23022.00 869.82 889.10 891.00 0.005257 12.91 2748.00 425.84 0.54

Reach1 61016 0.2% AEP 34447.00 869.82 892.35 893.97 0.004430 12.91 4323.44 544.46 0.50

Reach1 60758 50% AEP 1913.00 868.21 876.68 876.90 0.001367 3.74 520.33 96.48 0.25

Reach1 60758 20% AEP 4929.00 868.21 879.78 880.33 0.002357 6.15 900.11 136.40 0.35

Reach1 60758 10% AEP 8554.00 868.21 882.36 883.22 0.002911 7.91 1280.03 164.18 0.40

Reach1 60758 4% AEP 14050.00 868.21 885.15 886.39 0.003415 9.81 1917.64 272.50 0.44

Reach1 60758 2% AEP 18498.00 868.21 886.64 888.26 0.004087 11.43 2412.89 420.89 0.49

Reach1 60758 1% AEP 23022.00 868.21 888.30 889.76 0.003562 11.37 3134.59 447.99 0.47

Reach1 60758 0.2% AEP 34447.00 868.21 891.52 892.95 0.003198 12.00 4757.92 581.07 0.46

Reach1 60665 50% AEP 1913.00 868.75 876.60 871.66 876.77 0.001163 3.27 611.03 118.57 0.22

Reach1 60665 20% AEP 4929.00 868.75 879.63 874.17 880.09 0.002178 5.61 1015.42 146.67 0.31

Reach1 60665 10% AEP 8554.00 868.75 882.15 876.72 882.93 0.002856 7.45 1409.86 168.20 0.37

Reach1 60665 4% AEP 14050.00 868.75 884.68 879.44 886.03 0.003973 9.93 1973.85 308.40 0.45

Reach1 60665 2% AEP 18498.00 868.75 886.12 881.25 887.82 0.004645 11.40 2453.82 352.59 0.49

Reach1 60665 1% AEP 23022.00 868.75 887.28 882.92 889.31 0.005243 12.67 2867.99 362.03 0.53

Reach1 60665 0.2% AEP 34447.00 868.75 889.54 887.28 892.39 0.006726 15.54 3724.22 410.61 0.61

Reach1 60655 Inl Struct

Reach1 60638 50% AEP 1913.00 868.61 876.38 876.55 0.001224 3.36 599.76 121.92 0.22

Reach1 60638 20% AEP 4929.00 868.61 879.36 879.84 0.002189 5.70 1006.60 149.97 0.32

Reach1 60638 10% AEP 8554.00 868.61 881.85 882.64 0.002848 7.54 1404.66 174.14 0.38

Reach1 60638 4% AEP 14050.00 868.61 884.50 885.76 0.003664 9.74 2008.25 264.76 0.44

Reach1 60638 2% AEP 18498.00 868.61 885.89 887.57 0.004460 11.39 2463.75 355.47 0.50

Reach1 60638 1% AEP 23022.00 868.61 887.05 889.05 0.005037 12.67 2878.67 363.18 0.53

Reach1 60638 0.2% AEP 34447.00 868.61 889.32 892.14 0.006475 15.57 3741.61 413.85 0.62

Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl

(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)

Reach1 60507 50% AEP 1913.00 867.35 875.96 876.29 0.002205 5.25 501.82 127.77 0.34

Reach1 60507 20% AEP 4929.00 867.35 878.76 879.43 0.003309 7.93 897.68 155.10 0.43

Reach1 60507 10% AEP 8554.00 867.35 881.18 882.15 0.003945 9.96 1336.50 209.85 0.49

Reach1 60507 4% AEP 14050.00 867.35 883.99 885.24 0.004296 11.86 2015.57 321.79 0.53

Reach1 60507 2% AEP 18498.00 867.35 885.36 886.88 0.004941 13.45 2491.32 378.65 0.58

Reach1 60507 1% AEP 23022.00 867.35 886.54 888.20 0.005308 14.58 2976.51 433.38 0.60

Reach1 60507 0.2% AEP 34447.00 867.35 888.98 890.88 0.005742 16.50 4203.40 577.56 0.64

Reach1 60217 50% AEP 1913.00 869.85 874.99 875.32 0.005716 4.72 427.84 146.04 0.44

Reach1 60217 20% AEP 4929.00 869.85 877.68 878.25 0.004825 6.33 868.70 182.64 0.45

Reach1 60217 10% AEP 8554.00 869.85 880.18 880.91 0.004125 7.34 1390.69 243.41 0.44

Reach1 60217 4% AEP 14050.00 869.85 883.11 883.99 0.003625 8.34 2314.85 496.07 0.43

Reach1 60217 2% AEP 18498.00 869.85 884.72 885.54 0.003150 8.48 3204.87 586.04 0.41

Reach1 60217 1% AEP 23022.00 869.85 886.02 886.83 0.002929 8.70 3994.27 624.78 0.40

Reach1 60217 0.2% AEP 34447.00 869.85 888.63 889.46 0.002687 9.30 5735.16 710.40 0.40

Reach1 59811 50% AEP 1913.00 868.21 872.96 873.28 0.004435 4.70 506.71 176.87 0.40

Reach1 59811 20% AEP 4929.00 868.21 876.15 876.59 0.003355 5.94 1159.61 232.18 0.38

Reach1 59811 10% AEP 8554.00 868.21 878.97 879.48 0.002780 6.71 1991.63 378.84 0.37

Reach1 59811 4% AEP 14050.00 868.21 882.59 882.92 0.001494 6.02 4211.34 854.41 0.29

Reach1 59811 2% AEP 18498.00 868.21 884.34 884.62 0.001215 5.88 5844.26 1025.78 0.26

Reach1 59811 1% AEP 23022.00 868.21 885.72 885.98 0.001080 5.86 7334.62 1124.43 0.25

Reach1 59811 0.2% AEP 34447.00 868.21 888.44 888.69 0.000917 5.96 10542.81 1225.92 0.24

Reach1 59293 50% AEP 1913.00 863.52 870.23 870.69 0.005627 5.43 367.82 90.65 0.42

Reach1 59293 20% AEP 4929.00 863.52 873.99 874.62 0.004285 6.85 910.81 180.43 0.41

Reach1 59293 10% AEP 8554.00 863.52 877.30 877.94 0.003167 7.28 1561.20 215.04 0.37

Reach1 59293 4% AEP 14050.00 863.52 881.19 881.88 0.002611 7.95 2573.18 325.66 0.35

Reach1 59293 2% AEP 18498.00 863.52 882.84 883.65 0.002838 8.85 3149.80 413.82 0.37

Reach1 59293 1% AEP 23022.00 863.52 884.23 885.07 0.002822 9.28 3871.59 561.83 0.37

Reach1 59293 0.2% AEP 34447.00 863.52 887.00 887.87 0.002689 9.92 5578.13 674.21 0.37

Reach1 59102 50% AEP 1913.00 863.02 869.42 866.77 869.75 0.004002 4.65 417.03 89.72 0.36

Reach1 59102 20% AEP 4929.00 863.02 873.16 869.20 873.82 0.004000 6.67 836.28 130.36 0.39

Reach1 59102 10% AEP 8554.00 863.02 876.29 871.52 877.23 0.004005 8.15 1276.21 152.68 0.41

Reach1 59102 4% AEP 14050.00 863.02 879.94 874.25 881.22 0.004006 9.72 1935.48 372.32 0.43

Reach1 59102 2% AEP 18498.00 863.02 881.63 876.05 882.96 0.004001 10.40 2738.93 443.60 0.44

Reach1 59102 1% AEP 23022.00 863.02 883.01 877.46 884.38 0.004005 10.95 3377.14 481.06 0.45

Reach1 59102 0.2% AEP 34447.00 863.02 885.75 882.67 887.20 0.004000 11.98 4813.37 565.69 0.46

HEC-RAS Plan: Existing River: Bear Creek Reach: Reach1

Reach River Sta Profile E.G. Elev W.S. Elev Vel Head Frctn Loss C & E Loss Q Left Q Channel Q Right Top Width

(ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft)

Reach1 63700 50% AEP 891.17 890.87 0.31 2.85 0.03 8.19 1902.40 2.41 110.15

Reach1 63700 20% AEP 894.57 893.92 0.64 3.49 0.03 187.15 4678.20 63.65 201.43

Reach1 63700 10% AEP 897.02 896.17 0.85 3.79 0.00 1083.57 7290.19 180.24 236.99

Reach1 63700 4% AEP 899.74 898.62 1.12 3.91 0.00 2865.62 10801.35 383.02 257.96

Reach1 63700 2% AEP 901.50 900.17 1.33 3.98 0.03 4445.69 13486.01 566.30 274.81

Reach1 63700 1% AEP 903.02 901.46 1.55 3.99 0.08 6123.19 16136.31 762.49 289.07

Reach1 63700 0.2% AEP 906.20 904.10 2.10 4.10 0.21 10627.37 22534.14 1285.50 321.14

Reach1 62923 50% AEP 888.30 888.08 0.22 0.40 0.02 1.86 1910.74 0.40 136.42

Reach1 62923 20% AEP 891.05 890.50 0.55 0.64 0.00 55.70 4847.82 25.48 214.40

Reach1 62923 10% AEP 893.22 892.38 0.84 0.80 0.04 518.23 7953.73 82.04 261.55

Reach1 62923 4% AEP 895.83 894.72 1.10 0.80 0.03 1748.70 12087.51 213.79 372.01

Reach1 62923 2% AEP 897.49 896.25 1.24 0.75 0.01 3118.85 15019.88 359.26 446.16

Reach1 62923 1% AEP 898.94 897.65 1.29 0.74 0.02 4948.46 17548.71 524.83 488.65

Reach1 62923 0.2% AEP 901.90 900.49 1.41 0.73 0.07 10233.91 23263.35 949.73 578.89

Reach1 62767 50% AEP 887.89 887.70 0.19 4.66 1904.76 3.59 134.80

Reach1 62767 20% AEP 890.41 889.85 0.56 106.12 4744.81 78.07 224.42

Reach1 62767 10% AEP 892.39 891.43 0.96 535.09 7793.55 225.37 287.11

Reach1 62767 4% AEP 895.00 893.81 1.19 1946.00 11576.47 527.53 365.91

Reach1 62767 2% AEP 896.73 895.51 1.22 3733.97 13966.91 797.12 387.11

Reach1 62767 1% AEP 898.19 896.84 1.35 5427.19 16534.94 1059.87 421.14

Reach1 62767 0.2% AEP 901.11 899.46 1.65 10300.48 22462.03 1684.49 496.48

Reach1 62742 Inl Struct

Reach1 62700 50% AEP 885.68 885.39 0.30 0.46 0.04 3.94 1907.96 1.10 118.52

Reach1 62700 20% AEP 889.22 888.67 0.55 0.52 0.10 138.36 4735.91 54.73 159.87

Reach1 62700 10% AEP 891.91 891.12 0.79 0.52 0.07 576.42 7754.16 223.42 254.02

Reach1 62700 4% AEP 894.74 893.72 1.02 0.51 0.02 1906.88 11588.09 555.04 352.12

Reach1 62700 2% AEP 896.47 895.34 1.14 0.49 0.01 3450.27 14196.43 851.30 390.11

Reach1 62700 1% AEP 897.94 896.70 1.24 0.49 0.03 5295.95 16618.56 1107.49 429.18

Reach1 62700 0.2% AEP 900.83 899.33 1.50 0.52 0.07 10369.45 22236.12 1841.43 482.85

Reach1 62547 50% AEP 885.18 884.76 0.42 0.25 0.05 28.60 1828.58 55.82 119.28

Reach1 62547 20% AEP 888.60 887.71 0.89 0.41 0.06 374.25 4111.52 443.24 183.83

Reach1 62547 10% AEP 891.32 890.30 1.03 0.43 0.02 1329.32 6050.92 1173.76 267.85

Reach1 62547 4% AEP 894.21 893.11 1.10 0.41 0.01 3399.21 8288.78 2362.00 360.95

Reach1 62547 2% AEP 895.97 894.85 1.11 0.38 0.02 5478.87 9711.71 3307.43 398.33

Reach1 62547 1% AEP 897.41 896.24 1.17 0.38 0.03 7693.07 11068.46 4260.47 429.64

Reach1 62547 0.2% AEP 900.23 898.88 1.35 0.40 0.03 13534.74 14202.19 6710.07 470.30

Reach1 62428 50% AEP 884.88 884.62 0.26 0.25 0.01 18.68 1874.54 19.78 115.73

Reach1 62428 20% AEP 888.13 887.44 0.69 0.45 0.01 251.96 4424.28 252.76 166.23

Reach1 62428 10% AEP 890.87 889.92 0.96 0.52 0.02 1014.17 6835.28 704.55 242.18

Reach1 62428 4% AEP 893.79 892.72 1.08 0.49 0.02 2887.13 9511.26 1651.61 389.27

Reach1 62428 2% AEP 895.57 894.52 1.05 0.43 0.01 4814.54 10987.39 2696.07 436.19

Reach1 62428 1% AEP 897.01 895.93 1.08 0.43 0.01 6752.27 12452.47 3817.25 458.04

Reach1 62428 0.2% AEP 899.81 898.56 1.25 0.44 0.01 11712.18 15988.29 6746.54 521.76

Reach1 62295 50% AEP 884.62 884.28 0.34 0.22 0.00 26.66 1854.44 31.90 132.42

Reach1 62295 20% AEP 887.67 886.87 0.80 0.42 0.02 424.54 4167.60 336.86 173.09

Reach1 62295 10% AEP 890.33 889.13 1.19 0.53 0.04 1040.49 6571.28 942.23 218.54

Reach1 62295 4% AEP 893.29 892.04 1.24 0.43 0.02 2638.89 9003.70 2407.41 386.38

Reach1 62295 2% AEP 895.12 893.98 1.14 0.35 0.00 4010.64 10276.21 4211.15 433.69

Reach1 62295 1% AEP 896.56 895.36 1.20 0.33 0.04 5136.03 11788.77 6097.19 478.97

Reach1 62295 0.2% AEP 899.36 898.05 1.31 0.32 0.08 8780.50 14901.05 10765.45 533.90

Reach1 62197 50% AEP 884.40 884.06 0.34 0.23 0.01 37.81 1849.62 25.57 117.96

Reach1 62197 20% AEP 887.24 886.25 0.99 0.48 0.03 325.74 4354.30 248.96 152.66

Reach1 62197 10% AEP 889.75 888.13 1.62 0.64 0.05 930.30 6992.72 630.98 201.81

Reach1 62197 4% AEP 892.84 891.42 1.42 0.48 0.01 2689.94 9303.65 2056.42 413.00

Reach1 62197 2% AEP 894.77 893.65 1.12 0.37 0.02 3841.54 10291.87 4364.59 502.12

Reach1 62197 1% AEP 896.19 895.13 1.05 0.34 0.03 5249.95 11314.64 6457.40 528.00

Reach1 62197 0.2% AEP 898.97 897.91 1.05 0.32 0.04 9231.67 13757.32 11458.01 567.30

Reach1 62102 50% AEP 884.16 883.85 0.31 0.17 0.01 19.31 1869.64 24.06 153.71

Reach1 62102 20% AEP 886.73 885.84 0.89 0.34 0.05 185.23 4463.98 279.79 183.28

Reach1 62102 10% AEP 889.07 887.60 1.47 0.44 0.11 522.56 7281.59 749.85 210.07

Reach River Sta Profile E.G. Elev W.S. Elev Vel Head Frctn Loss C & E Loss Q Left Q Channel Q Right Top Width

(ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft)

Reach1 62102 4% AEP 892.35 890.84 1.51 0.37 0.07 1239.63 10548.90 2261.48 384.82

Reach1 62102 2% AEP 894.38 893.05 1.33 0.26 0.12 1524.56 12267.31 4706.14 472.72

Reach1 62102 1% AEP 895.82 894.51 1.31 0.24 0.12 2080.16 13903.30 7038.54 517.73

Reach1 62102 0.2% AEP 898.60 897.16 1.45 0.23 0.16 3641.02 17905.43 12900.56 584.60

Reach1 62028 50% AEP 883.98 883.72 0.26 0.17 0.06 24.05 1729.84 159.11 163.37

Reach1 62028 20% AEP 886.33 885.61 0.72 0.26 0.06 189.09 3909.52 830.39 186.35

Reach1 62028 10% AEP 888.52 887.41 1.11 0.24 0.03 490.53 6129.07 1934.40 203.38

Reach1 62028 4% AEP 891.91 890.62 1.29 0.15 0.09 1191.70 9245.84 3612.46 423.26

Reach1 62028 2% AEP 894.00 893.06 0.94 0.09 0.07 1467.51 10008.33 7022.16 501.98

Reach1 62028 1% AEP 895.45 894.55 0.91 0.08 0.07 1722.60 11111.94 10187.45 540.11

Reach1 62028 0.2% AEP 898.21 897.30 0.91 0.07 0.09 2460.62 13720.75 18265.63 876.20

Reach1 61995 50% AEP 883.75 882.84 0.91 0.16 0.21 6.97 1903.76 2.27 150.41

Reach1 61995 20% AEP 886.01 884.65 1.36 0.18 0.28 139.18 4669.06 120.76 180.57

Reach1 61995 10% AEP 888.25 886.88 1.37 0.15 0.24 423.25 7675.16 455.59 226.37

Reach1 61995 4% AEP 891.68 890.67 1.00 0.08 0.13 1511.49 11323.17 1215.34 497.97

Reach1 61995 2% AEP 893.84 893.14 0.70 0.05 0.07 2341.11 12645.50 3511.40 592.31

Reach1 61995 1% AEP 895.30 894.64 0.66 0.05 0.06 3108.03 14272.87 5641.11 837.25

Reach1 61995 0.2% AEP 898.05 897.43 0.62 0.04 0.05 4758.03 17762.06 11926.91 986.82

Reach1 61966 50% AEP 883.18 882.98 0.20 93.36 1713.69 105.94 174.21

Reach1 61966 20% AEP 885.55 885.11 0.44 530.27 3911.97 486.77 232.68

Reach1 61966 10% AEP 887.86 887.29 0.57 1312.12 6146.83 1095.05 259.90

Reach1 61966 4% AEP 891.46 890.90 0.56 2772.22 9074.98 2202.80 527.17

Reach1 61966 2% AEP 893.71 893.25 0.46 3631.63 10333.27 4533.10 658.88

Reach1 61966 1% AEP 895.19 894.73 0.46 4436.83 11707.57 6877.60 850.96

Reach1 61966 0.2% AEP 897.96 897.49 0.47 6265.11 14726.88 13455.00 971.37

Reach1 61948 Culvert

Reach1 61905 50% AEP 881.17 880.55 0.62 1.50 0.11 3.68 1909.12 0.20 112.44

Reach1 61905 20% AEP 884.55 883.79 0.75 0.77 0.12 129.20 4636.32 163.48 175.70

Reach1 61905 10% AEP 887.65 886.86 0.79 0.60 0.06 508.32 7385.98 659.70 210.49

Reach1 61905 4% AEP 891.29 890.39 0.90 0.53 0.01 1040.71 11323.18 1686.12 463.06

Reach1 61905 2% AEP 893.58 892.80 0.78 0.43 0.02 1526.87 13230.77 3740.36 781.42

Reach1 61905 1% AEP 895.05 894.41 0.64 0.37 0.04 2077.88 14074.36 6869.75 857.86

Reach1 61905 0.2% AEP 897.85 897.31 0.54 0.33 0.09 3361.38 16413.24 14672.38 1010.97

Reach1 61712 50% AEP 879.56 879.15 0.41 1.01 0.01 6.20 1896.67 10.14 120.24

Reach1 61712 20% AEP 883.66 883.14 0.52 0.85 0.05 194.63 4453.30 281.07 160.51

Reach1 61712 10% AEP 887.00 886.32 0.68 0.84 0.09 561.71 7282.54 709.74 194.52

Reach1 61712 4% AEP 890.75 889.87 0.89 0.83 0.11 1244.89 11311.29 1493.83 365.33

Reach1 61712 2% AEP 893.13 892.28 0.84 0.81 0.18 1731.00 13457.43 3309.57 625.44

Reach1 61712 1% AEP 894.64 893.86 0.78 0.77 0.20 2017.06 14849.93 6155.02 685.40

Reach1 61712 0.2% AEP 897.43 896.61 0.83 0.75 0.18 2450.96 18675.71 13320.33 840.41

Reach1 61457 50% AEP 878.54 878.04 0.50 1.13 0.06 121.58 1752.62 38.80 79.73

Reach1 61457 20% AEP 882.76 881.71 1.05 1.58 0.10 456.79 4065.65 406.56 110.42

Reach1 61457 10% AEP 886.07 884.53 1.54 1.81 0.16 840.78 6485.39 1227.82 143.84

Reach1 61457 4% AEP 889.82 887.85 1.97 2.16 0.10 1351.91 9542.24 3155.84 195.99

Reach1 61457 2% AEP 892.14 889.50 2.64 2.41 0.26 1800.79 12359.10 4338.11 311.82

Reach1 61457 1% AEP 893.68 890.93 2.75 2.53 0.30 2094.71 14098.86 6828.43 399.94

Reach1 61457 0.2% AEP 896.50 893.84 2.66 2.21 0.31 2637.19 17250.24 14559.57 540.56

Reach1 61016 50% AEP 877.36 877.06 0.30 0.43 0.03 1874.03 38.97 88.20

Reach1 61016 20% AEP 881.07 880.37 0.70 0.70 0.04 4470.35 458.65 128.59

Reach1 61016 10% AEP 884.10 883.10 1.00 0.83 0.04 7071.97 1482.03 145.19

Reach1 61016 4% AEP 887.56 885.91 1.65 1.05 0.12 11398.85 2651.15 259.05

Reach1 61016 2% AEP 889.47 887.71 1.76 1.16 0.04 13697.19 4800.81 341.16

Reach1 61016 1% AEP 891.00 889.10 1.89 1.11 0.13 15873.84 7148.16 425.84

Reach1 61016 0.2% AEP 893.97 892.35 1.62 0.96 0.06 18772.01 15674.99 544.46

Reach1 60758 50% AEP 876.90 876.68 0.22 0.12 0.02 1907.31 5.69 96.48

Reach1 60758 20% AEP 880.33 879.78 0.55 0.21 0.03 4575.83 353.17 136.40

Reach1 60758 10% AEP 883.22 882.36 0.87 0.27 0.03 0.50 7432.31 1121.19 164.18

Reach1 60758 4% AEP 886.39 885.15 1.24 0.34 0.01 14.73 11297.95 2737.33 272.50

Reach1 60758 2% AEP 888.26 886.64 1.63 0.40 0.01 42.80 14451.75 4003.45 420.89

Reach1 60758 1% AEP 889.76 888.30 1.46 0.40 0.06 91.15 15810.52 7120.33 447.99

Reach River Sta Profile E.G. Elev W.S. Elev Vel Head Frctn Loss C & E Loss Q Left Q Channel Q Right Top Width

(ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft)

Reach1 60758 0.2% AEP 892.95 891.52 1.43 0.42 0.14 275.82 19634.59 14536.59 581.07

Reach1 60665 50% AEP 876.77 876.60 0.17 1895.64 17.36 118.57

Reach1 60665 20% AEP 880.09 879.63 0.46 2.43 4629.10 297.47 146.67

Reach1 60665 10% AEP 882.93 882.15 0.78 26.18 7677.02 850.81 168.20

Reach1 60665 4% AEP 886.03 884.68 1.35 107.22 12281.38 1661.40 308.40

Reach1 60665 2% AEP 887.82 886.12 1.71 191.34 15436.71 2869.96 352.59

Reach1 60665 1% AEP 889.31 887.28 2.02 285.33 18357.16 4379.51 362.03

Reach1 60665 0.2% AEP 892.39 889.54 2.84 479.20 25387.30 8580.50 410.61

Reach1 60655 Inl Struct

Reach1 60638 50% AEP 876.55 876.38 0.17 0.21 0.05 2.08 1885.04 25.88 121.92

Reach1 60638 20% AEP 879.84 879.36 0.47 0.35 0.06 26.52 4576.43 326.04 149.97

Reach1 60638 10% AEP 882.64 881.85 0.79 0.44 0.05 85.40 7576.48 892.12 174.14

Reach1 60638 4% AEP 885.76 884.50 1.26 0.52 0.01 213.11 11869.00 1967.88 264.76

Reach1 60638 2% AEP 887.57 885.89 1.68 0.61 0.08 327.11 15174.38 2996.51 355.47

Reach1 60638 1% AEP 889.05 887.05 2.00 0.68 0.17 445.60 18063.42 4512.99 363.18

Reach1 60638 0.2% AEP 892.14 889.32 2.82 0.80 0.46 644.07 25060.68 8742.26 413.85

Reach1 60507 50% AEP 876.29 875.96 0.33 0.97 0.00 187.38 1405.17 320.45 127.77

Reach1 60507 20% AEP 879.43 878.76 0.67 1.15 0.03 594.45 2905.74 1428.81 155.10

Reach1 60507 10% AEP 882.15 881.18 0.97 1.17 0.07 1134.66 4502.55 2916.79 209.85

Reach1 60507 4% AEP 885.24 883.99 1.25 1.14 0.11 1945.71 6536.40 5567.90 321.79

Reach1 60507 2% AEP 886.88 885.36 1.52 1.13 0.21 2561.11 8066.47 7870.42 378.65

Reach1 60507 1% AEP 888.20 886.54 1.66 1.12 0.26 2692.38 9350.75 10978.87 433.38

Reach1 60507 0.2% AEP 890.88 888.98 1.90 1.10 0.32 3299.88 12000.41 19146.72 577.56

Reach1 60217 50% AEP 875.32 874.99 0.33 2.04 0.01 29.63 1838.36 45.01 146.04

Reach1 60217 20% AEP 878.25 877.68 0.57 1.62 0.04 237.76 4356.36 334.88 182.64

Reach1 60217 10% AEP 880.91 880.18 0.73 1.36 0.06 704.12 7086.74 763.15 243.41

Reach1 60217 4% AEP 883.99 883.11 0.87 0.90 0.16 1671.82 10765.12 1613.06 496.07

Reach1 60217 2% AEP 885.54 884.72 0.82 0.75 0.16 2245.00 12445.43 3807.57 586.04

Reach1 60217 1% AEP 886.83 886.02 0.81 0.68 0.16 2819.44 14033.28 6169.28 624.78

Reach1 60217 0.2% AEP 889.46 888.63 0.83 0.59 0.18 4374.22 17683.90 12388.87 710.40

Reach1 59811 50% AEP 873.28 872.96 0.31 2.58 0.01 153.22 1729.73 30.05 176.87

Reach1 59811 20% AEP 876.59 876.15 0.44 1.95 0.02 827.78 3832.33 268.89 232.18

Reach1 59811 10% AEP 879.48 878.97 0.51 1.53 0.01 1666.55 5973.96 913.50 378.84

Reach1 59811 4% AEP 882.92 882.59 0.33 1.00 0.04 3007.93 7257.48 3784.59 854.41

Reach1 59811 2% AEP 884.62 884.34 0.28 0.92 0.05 3973.10 7979.12 6545.78 1025.78

Reach1 59811 1% AEP 885.98 885.72 0.26 0.85 0.06 5121.75 8665.66 9234.59 1124.43

Reach1 59811 0.2% AEP 888.69 888.44 0.25 0.76 0.06 8405.40 10223.83 15817.77 1225.92

Reach1 59293 50% AEP 870.69 870.23 0.45 0.90 0.04 16.40 1894.97 1.63 90.65

Reach1 59293 20% AEP 874.62 873.99 0.63 0.79 0.00 746.65 4157.02 25.33 180.43

Reach1 59293 10% AEP 877.94 877.30 0.64 0.68 0.03 2401.36 6078.42 74.22 215.04

Reach1 59293 4% AEP 881.88 881.19 0.69 0.61 0.06 5102.47 8772.14 175.39 325.66

Reach1 59293 2% AEP 883.65 882.84 0.81 0.64 0.05 7486.07 10760.28 251.65 413.82

Reach1 59293 1% AEP 885.07 884.23 0.84 0.64 0.05 10525.76 12175.69 320.55 561.83

Reach1 59293 0.2% AEP 887.87 887.00 0.87 0.62 0.06 19062.18 14905.18 479.64 674.21

Reach1 59102 50% AEP 869.75 869.42 0.34 3.46 1908.79 0.75 89.72

Reach1 59102 20% AEP 873.82 873.16 0.66 200.34 4706.40 22.26 130.36

Reach1 59102 10% AEP 877.23 876.29 0.95 717.96 7757.95 78.10 152.68

Reach1 59102 4% AEP 881.22 879.94 1.28 1792.67 12051.46 205.87 372.32

Reach1 59102 2% AEP 882.96 881.63 1.33 3925.12 14280.30 292.58 443.60

Reach1 59102 1% AEP 884.38 883.01 1.37 6417.83 16225.78 378.39 481.06

Reach1 59102 0.2% AEP 887.20 885.75 1.45 13520.10 20336.71 590.19 565.69

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 50% AEP

Q Culv Group (cfs) 6.36 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 8.10

Q Barrel (cfs) 6.36 Culv Vel DS (ft/s) 8.10

E.G. US. (ft) 883.18 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 882.98 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 881.17 Culv Frctn Ls (ft) 0.70

W.S. DS (ft) 880.55 Culv Exit Loss (ft) 0.40

Delta EG (ft) 2.02 Culv Entr Loss (ft) 0.92

Delta WS (ft) 2.43 Q Weir (cfs) 1881.68

E.G. IC (ft) 881.06 Weir Sta Lft (ft) 437.59

E.G. OC (ft) 883.19 Weir Sta Rgt (ft) 602.39

Culvert Control Outlet Weir Submerg 0.18

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 3.70

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 2.56

Culv Nml Depth (ft) 1.00 Weir Flow Area (sq ft) 422.22

Culv Crt Depth (ft) 1.00 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 20% AEP

Q Culv Group (cfs) 4.97 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 6.33

Q Barrel (cfs) 4.97 Culv Vel DS (ft/s) 6.33

E.G. US. (ft) 885.55 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 885.11 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 884.55 Culv Frctn Ls (ft) 0.44

W.S. DS (ft) 883.79 Culv Exit Loss (ft) 0.00

Delta EG (ft) 1.00 Culv Entr Loss (ft) 0.56

Delta WS (ft) 1.32 Q Weir (cfs) 4922.55

E.G. IC (ft) 880.25 Weir Sta Lft (ft) 410.28

E.G. OC (ft) 885.54 Weir Sta Rgt (ft) 626.20

Culvert Control Outlet Weir Submerg 0.63

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 6.04

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 4.02

Culv Nml Depth (ft) Weir Flow Area (sq ft) 868.26

Culv Crt Depth (ft) 0.92 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 10% AEP

Q Culv Group (cfs) 2.26 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 2.88

Q Barrel (cfs) 2.26 Culv Vel DS (ft/s) 2.88

E.G. US. (ft) 887.86 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 887.29 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 887.65 Culv Frctn Ls (ft) 0.10

W.S. DS (ft) 886.86 Culv Exit Loss (ft) 0.00

Delta EG (ft) 0.21 Culv Entr Loss (ft) 0.12

Delta WS (ft) 0.43 Q Weir (cfs) 8500.52

E.G. IC (ft) 879.25 Weir Sta Lft (ft) 387.10

E.G. OC (ft) 887.86 Weir Sta Rgt (ft) 644.30

Culvert Control Outlet Weir Submerg 0.88

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 8.38

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 5.54

Culv Nml Depth (ft) Weir Flow Area (sq ft) 1423.71

Culv Crt Depth (ft) 0.64 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 4% AEP

Q Culv Group (cfs) 2.04 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 2.60

Q Barrel (cfs) 2.04 Culv Vel DS (ft/s) 2.60

E.G. US. (ft) 891.46 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 890.90 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 891.29 Culv Frctn Ls (ft) 0.08

W.S. DS (ft) 890.39 Culv Exit Loss (ft) 0.00

Delta EG (ft) 0.17 Culv Entr Loss (ft) 0.09

Delta WS (ft) 0.51 Q Weir (cfs) 13919.16

E.G. IC (ft) 879.19 Weir Sta Lft (ft) 357.68

E.G. OC (ft) 891.46 Weir Sta Rgt (ft) 863.97

Culvert Control Outlet Weir Submerg 0.91

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 11.97

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 5.22

Culv Nml Depth (ft) Weir Flow Area (sq ft) 2643.43

Culv Crt Depth (ft) 0.61 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 2% AEP

Q Culv Group (cfs) 1.80 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 2.30

Q Barrel (cfs) 1.80 Culv Vel DS (ft/s) 2.30

E.G. US. (ft) 893.71 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 893.25 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 893.58 Culv Frctn Ls (ft) 0.06

W.S. DS (ft) 892.80 Culv Exit Loss (ft) 0.00

Delta EG (ft) 0.13 Culv Entr Loss (ft) 0.07

Delta WS (ft) 0.45 Q Weir (cfs) 18443.44

E.G. IC (ft) 879.12 Weir Sta Lft (ft) 339.95

E.G. OC (ft) 893.71 Weir Sta Rgt (ft) 1118.93

Culvert Control Outlet Weir Submerg 0.92

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 14.23

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 5.68

Culv Nml Depth (ft) Weir Flow Area (sq ft) 3971.25

Culv Crt Depth (ft) 0.57 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 1% AEP

Q Culv Group (cfs) 1.82 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 2.32

Q Barrel (cfs) 1.82 Culv Vel DS (ft/s) 2.32

E.G. US. (ft) 895.19 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 894.73 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 895.05 Culv Frctn Ls (ft) 0.06

W.S. DS (ft) 894.41 Culv Exit Loss (ft) 0.00

Delta EG (ft) 0.13 Culv Entr Loss (ft) 0.08

Delta WS (ft) 0.32 Q Weir (cfs) 23563.83

E.G. IC (ft) 879.13 Weir Sta Lft (ft) 328.63

E.G. OC (ft) 895.18 Weir Sta Rgt (ft) 1187.28

Culvert Control Outlet Weir Submerg 0.93

Culv WS Inlet (ft) 879.30 Weir Max Depth (ft) 15.70

Culv WS Outlet (ft) 878.90 Weir Avg Depth (ft) 6.00

Culv Nml Depth (ft) Weir Flow Area (sq ft) 5151.53

Culv Crt Depth (ft) 0.57 Min El Weir Flow (ft) 879.49

Plan: Existing Bear Creek Reach1 RS: 61948 Culv Group: Culvert #1 Profile: 0.2% AEP

Q Culv Group (cfs) 1.68 Culv Full Len (ft) 22.00

# Barrels 1 Culv Vel US (ft/s) 2.14

Q Barrel (cfs) 1.68 Culv Vel DS (ft/s) 2.14

E.G. US. (ft) 897.96 Culv Inv El Up (ft) 878.30

W.S. US. (ft) 897.49 Culv Inv El Dn (ft) 877.90

E.G. DS (ft) 897.85 Culv Frctn Ls (ft) 0.05

W.S. DS (ft) 897.31 Culv Exit Loss…