DC NP ROCR 503(1) 24(2) Hydraulics Report_100.pdf.pdf

Hydraulics Report

For 100% Plans

Resurfacing and Restoration of Piney Branch Parkway and Waterside Drive, and 17th Street Pedestrian Facilities

Project No: NP-ROCR 503(2), 24(2)

Washington, D.C.

October 2024

Prepared By: Christopher Leoanrd, P.E.

WSP

13530 Dulles Technology Drive Suite 300 Herndon, Virginia 20171

Submittals and RevisionsResurfacing and Restoration of Piney Branch Parkway and Waterside Drive Stormwater Calculations

Hydraulics Report (For 100% Plans) October 2024

Hydraulics Report (For 99% Plans)

August 2021

May 2024

August 2024

Submittals and Revisions

Submittal Revision

Hydraulics Report (For 30% Plans)

Hydraulics Report (For 70% Plans)

WSP 100% Plans

Table of ContentsResurfacing and Restoration of Piney Branch Parkway

1. Introduction

2. Spread Calculations and Analysis

3. Storm Sewer Calculations and Analysis

APPENDICES

Appendix A - Drainage Area Maps Appendix B - Drainage Calculations Appendix B.1 - Inlet Calculations Piney Branch Parkway Waterside Drive Appendix B.2 - Storm Sewer Calculations Appendix B.2.a - 10-Year Flood (Full System) Piney Branch Parkway Waterside Drive Appendix B.2.b - 15-Year Flood (Downstream of BMP) Piney Branch Parkway Waterside Drive Appendix B.3 - Time of Concentration Calculations Piney Branch Parkway Waterside Drive Appendix B.4 - PondPack Results Appendix B.4.a - Piney Branch Parkway Appendix B.4.b - Waterside Drive

TABLE OF CONTENTS

WSP 100% Plans- 3 -

Resurfacing and Restoration of Piney Branch Stormwater Calculations Parkway and Waterside Drive

WSP 100% Plans

1. Introduction and Methodology

This report documents the preliminary hydraulic analysis performed as part of the design plans for the Resurfacing and Restoration of Piney Branch Parkway and Waterside Drive, and 17th Street Pedestrian Facilities project, located in the Washington, D.C. A separate Stormwater Management Report has been prepared for review by the D.C. Department of Energy & Environment (DOEE).

The hydraulic calculations are based on the methodology in Chapter 7 of the Project Development and Design Manual (PDDM), and the FHWA Hydraulic Design Series (HDS) and Hydraulic Engineering Circulars (HEC) that it references.

The project consists of four main sections:

Piney Branch Parkway, where the work consists primarily of mill and overlay repairs, with some sections of full depth patching and curb replacement. Additional inlets were proposed along the corridor to improve interception of offsite areas draining to the road;

including one new outlet location.

17th Street NW, where the work consists of mill and overlay repairs and constructing a new pedestrian pathway, with both sidewalk and board walk sections. New inlets are added to convey the disturbed area to a bioretention facility.

Waterside Drive north of Massachusetts Avenue, where the work is the complete reconstruction of the roadway. As there is no space to locate a stormwater facility in this area, the hydraulic condition and storm sewer layout will be preserved through construction to the existing condition. As such, detailed hydraulic analysis is not performed.

Waterside Drive south of Massachusetts Avenue, where the work is the complete reconstruction of the roadway. As the stormwater management approach here is to install a new storm sewer system to direct the roadway runoff to a new bioretention facility, full pavement drainage and storm drain calculations are presented to verify the adequacy of the proposed system.

Both Piney Branch Parkway and Waterside Drive are considered High Standard Roads per PDDM 7.1.6.1, as the ADT on each well exceeds 1,500.

2. Spread Calculations and Analysis

Spread calculations were performed to maximally address safety concerns with roadway flooding. Inlet drainage area maps are presented in Appendix A, with computations presented in Appendix B.1.

Per Exhibit 7.1-A in the PDDM, spreads were calculated for the 10-year flood. Per the PDDM 7.3.3.3.1, most of the project consists of “Roadways with less than 3 ft of pavement width outside the travel lanes”, as the travel lane abuts curb and gutter. So, the allowable spread is half of one travel lane. Some sections at the south end of Waterside Drive did have a striped shoulder, and so were limited to “3 ft of one travel lane”.

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WSP 100% Plans

Both field investigation and survey data indicate that the existing section typically has a 1 foot gutter. This was used for most spread calculations, except for locations where no gutter was observed.

Spread at all locations along the new system on Waterside Drive is within allowable limits. The proposed inlet type along this corridor is DC variable chamber curb slot catch basins, in order to match the existing structures.

Along Piney Branch Parkway, runoff from substantial offsite areas drains into the roadway.

Analysis of the existing inlets indicated that their interception capacity is insufficient to handle this volume, which leads to the observed flooding issues along the roadway. As this situation is dominated by runoff from offsite areas, one potential solution would be to construct interceptor ditches behind the curb along the corridor to prevent the runoff from entering the roadway section. That change would result in substantial grading and tree clearing throughout the corridor, which is both not environmentally desirable and beyond the scope of this roadway rehabilitation project. To address this concern to the maximum extent practicable within the project limits, each existing inlet was analyzed to determine its interception capacity. This bypass flow was analyzed with the same roadway section, with this process repeated until bypass was minimal. This procedure gives the number of inlets needed at each location to provide sufficient interception capacity. Additional inlets were proposed immediately upstream and connecting to the existing inlets to provide this benefit with the least impact to the corridor.

In addition these inlet additions to improve roadway flooding conditions, the design also includes water quality catch basins as components of the stormwater management strategy. These are three chamber structures with a curb slot opening on one end and internal sump and baffles to promote settling and collection of sediment and debris. As these structures are subject to review and approval by DOEE, the number and location are subject to change. As such, any additional interception provided by these structures has been excluded from this hydraulic analysis, and the number and location of standard EFL inlets is sufficient to address the roadway flooding.

Any additional interception actually provided by the water quality structures will serve as an additional factor of safety.

3. Storm Sewer Calculations and Analysis Hydraulic grade line calculations were performed to verify the functionality of the proposed inlet and pipe layout. Per Exhibit 7.1-A in the PDDM, the storm sewer was designed to convey the 10-year flood. Calculations are presented in Appendix B.2.

Along Waterside Drive, existing inlets were maintained to the maximum extent possible.

Otherwise, existing inlets were replaced at the same location, so that the pipe connection could be changed to the proposed system.

The difference from the existing condition is that, rather than the inlets outfalling to Rock Creek at various points along the corridor, they are all joined into a single system that conveys the runoff to a bioretention facility at the interchange with Rock Creek and Potomac Parkway.

To limit disturbance to the existing curb and gutter, the trunk line for the proposed system runs under the road, with inlets connecting to manholes with short spur pipes. The manholes were

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WSP 100% Plans located outside the wheel paths (along the centerline, in the shoulder) to the maximum extent possible. This configuration also avoids the recently installed gas line that runs along the center of the northbound lane from Massachusetts Avenue and provides service to the residences east of the road.

In addition to the 10-year design storm directed by the PDDM for federal projects, DOEE requires any systems downstream of a BMP to be analyzed with the 15-year storm in order to approve that BMP. This is not a standard frequency, so general rainfall data is not available.

Design intensities are taken from Table 28-1 of the DDOT Design and Engineering manual.

However, this table only provides intensities for times of concentration up to 10 minutes, while the presence of upstream wooded areas draining to the project result in times of concentration between 12 and 17 minutes for some areas. Intensities for these longer durations were developed by applying the same ratio between the 10- and 25-year storm intensities (calculated at the 15-year intensity being an average of 41.6% between them) to intensities for the bounding storms taken from NOAA Atlas 14. Where the sources overlap there is a maximum of

0.02 in/hr difference between Table 28-1 and Atlas 14, so using the Atlas 14 intensities is reasonable.

The discharge from the proposed storm drain systems to each of the two bioretention facilities is controlled by a splitter structure, with the primary flow path for intense storms bypassing the BMPs. In order to account for the flow split and storage within the bioretention facilities, each BMP was modeled in Bentley PondPack for both the 10- and 15-year storms using the modified rational method. Available storage volume within the BMPs was limited to surface storage, and did not consider infiltration through the filter media. This is a limitation of the software, but also serves as an additional factor of safety in the design, especially since the relatively slow infiltration rates are not a major factor during these more intense storms. The peak discharges from both the splitter structures and pond outlet structures were added directly to the peak flow developed for each runoff area at downstream structures. While direct addition of peak flows like this is not generally preferred, in this circumstance it allows analysis of the downstream system. This approach is conservative, as it assumes that the peaking times of the pond outflow and surface runoff are the same.

The 10-year flood calculations cover the full extents of the storm sewer systems, and account for the BMP detention as described above. The 15-year flood calculations cover only the portions of the storm sewer systems between the BMP outlet structures and ultimate discharge points; and also account for the BMP detention as described above.

- 6 -

Appendix A

Drainage Area Maps

- 7 -

NO. DATE BY REVISIONS

ASHBURN, VIRGINIA

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

P

M

J u n e

D I m p e r ia l S h e e t c b m s \w s p p b u s p w

\w s p h ie p .d in h \d

\N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

M.H

DRAINAGE AREA MAP

STORMDRAIN

PINEY BRANCH PARKWAY

Legend

Limit of Disturbance

Drainage Area N

100 200050100

Scale in feet

Time of Concentration path

M A

T C

H P

L A

N S

H E

E T A

A01

C=0.20

C=0.35

C=0.90

A=1.145 Ac, A=0.050 Ac, A=0.139 Ac, D01-4

C=0.20

C=0.35

C=0.90

A=0.512 Ac, A=0.066 Ac, A=0.103 Ac, D01-5

C=0.20

C=0.35

C=0.90

A=1.322 Ac, A=0.715 Ac, A=0.791 Ac, D02-1

C=0.20

C=0.35

C=0.90

A=1.603 Ac, A=0.068 Ac, A=0.121 Ac, D02-2

D01-3

C=0.20

C=0.35

C=0.90

A=0.000 Ac, A=0.000 Ac, A=0.078 Ac, D02-3

C=0.20

C=0.35

C=0.90

A=0.046 Ac, A=0.031 Ac, A=0.168 Ac, D01-2

C=0.20

C=0.35

C=0.90

A=0.000 Ac, A=0.000 Ac, A=0.000 Ac, A=0.334 Ac, A=0.011 Ac, A=0.085 Ac, C=0.20

C=0.35

C=0.90

D01-1

Tc = 12 min

10 min

Tc = Tc = 21 min

12 min

Tc =

Tc = 13 min

11 min

Tc =

Tc = 11 min

Tc = 8 min

- 8 -

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

J u n e

D I m p e r ia l S h e b m s \w s p p b u s p w

\w s p h ie p .d in h \d

\N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

82 82

86 86

93 93

96 96

11912

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

SD

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

SD

E

E

EOI

EOI EOI

EOI

EOI

EOI

EOI

EOI

EOI

EOI

UP

UP

UP

E

E

E

E

TP

ED

A

C

L A

Y

N E F

DI

SC F

OUND

M O

N F

O U

N D

102.4

C=0.20

C=0.35

C=0.90

A=0.919 Ac, A=0.060 Ac, A=0.118 Ac, D03-1

C=0.20

C=0.35

C=0.90

A=3.022 Ac, A=0.457 Ac, A=0.541 Ac, D03-2

C=0.20

C=0.35

C=0.90

A=0.549 Ac, A=0.028 Ac, A=0.070 Ac, D04-1B

C=0.20

C=0.35

C=0.90

D04-2

C=0.20

C=0.35

C=0.90

D08-2

C=0.20

C=0.35

C=0.90

Ex019

C=0.20

C=0.35

C=0.90

Ex014

D08-1

C=0.20

C=0.35

C=0.90

D05-16

C=0.20

C=0.35

C=0.90

D05-2

C=0.20

C=0.35

C=0.90

C=0.20

C=0.35

C=0.90

D04-4

A=0.662 Ac, A=0.088 Ac, A=0.110 Ac, A=0.000 Ac, A=0.170 Ac, A=0.321 Ac, A=0.037 Ac, A=0.080 Ac, A=0.097 Ac, A=0.134 Ac, A=0.066 Ac, A=0.037 Ac, A=0.410 Ac, A=0.213 Ac, A=0.169 Ac, A=0.000 Ac, A=0.005 Ac, A=0.044 Ac, A=0.140 Ac, A=0.640 Ac, A=0.581 Ac, A=0.025 Ac, A=0.027 Ac, A=0.017 Ac, A=0.018 Ac, A=0.022 Ac, A=0.119 Ac, C=0.20

C=0.35

C=0.90

D05-3

C=0.20

C=0.35

C=0.90

A=0.812 Ac, A=0.048 Ac, A=0.023 Ac, D04-1

A=0.003 Ac, A=0.017 Ac, A=0.104 Ac, Ex009

C=0.20

C=0.35

C=0.90

D05-4A

C=0.20

C=0.35

C=0.90

A=0.115 Ac, A=0.055 Ac, A=0.000 Ac, D05-17

C=0.20

C=0.35

C=0.90

A=0.000 Ac, A=0.008 Ac, A=0.046 Ac, D02-3

C=0.20

C=0.35

C=0.90

A=0.046 Ac, A=0.031 Ac, A=0.168 Ac, 5'-1.7"19'-9.2"19'-3.2"4'-1"84'-6.2"9'-5.6"24'-1"16'-8.6"4.2'7.8'244.4'

11 min

Tc =

Tc = 12 min

Tc = 12 min

Tc = 8 min

Tc = 9 min

11 min

Tc =

Tc = 7 min

9 min

Tc =

DRAINAGE AREA MAP

STORMDRAIN

PINEY BRANCH PARKWAY100 200050100

Scale in feet

Legend

Limit of Disturbance

Drainage Area

N

Time of Concentration Path

M A

T C

H P

L A

N S

H E

E T A

A02

M A

T C

H P

L A

N S

H E

E T A

MATCH PLAN ON THIS SHEET

MATCH PLAN ON THIS SHEET

- 9 -

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

J u n e

D I m p e r ia l S h e b m s \w s p p b u s p w

\w s p h ie p .d in h \d

\N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

111111

IN

V

IN

V

IN

V

IN

V

IN

V

SD

IN

V

IN

V

IN

V

IN

V

SD

IN

V

IN

V

IN

V

IN

V

SD

IN

V

IN

V

IN

V

IN

V

IN

V

SD

SD

SD

SD

SD

100 200050100

Scale in feet DRAINAGE AREA MAP

STORMDRAIN

PINEY BRANCH PARKWAY

Legend

Limit of Disturbance

Drainage Area

N

Time of Concentration path

M A

T C

H P

L A

N S

H E

E T A

A03

M A T C

H P

L A

N S

H E E T A

C=0.20

C=0.35

C=0.90

D05-4

C=0.20

C=0.35

C=0.90

D05-6

C=0.20

C=0.35

C=0.90

D05-7

C=0.20

C=0.35

C=0.90

D06-1

A=0.025 Ac, A=0.027 Ac, A=0.017 Ac, A=1.889 Ac, A=1.730 Ac, A=0.114 Ac, A=0.280 Ac, A=0.133 Ac, A=0.068 Ac, A=0.698 Ac, A=0.480 Ac, A=0.238 Ac, A=0.124 Ac, A=2.504 Ac, A=1.022 Ac, A=0.000 Ac, A=0.031 Ac, A=0.156 Ac, C=0.20

C=0.35

C=0.90

D05-5

A=0.018 Ac, A=0.022 Ac, A=0.119 Ac, C=0.20

C=0.35

C=0.90

D05-3

A=0.178 Ac, A=0.660 Ac, A=0.101 Ac, C=0.20

C=0.35

C=0.90

D05-3C

A=0.115 Ac, A=0.055 Ac, A=0.000 Ac, 244.4'

Tc = 11 min

Tc = 21 min

Tc = 7 min

Tc = 12 min

- 10 -

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

J u n e

D I m p e r ia l S h e b m s w s p p b u s p w w s p h ie p .d in h d N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

144 144

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

IN

V

S D

IN

V

IN

V

S D

IN

V

S D

IN

V

S D

S D

S D

S D

IN

V

S D

IN

V

S D

S

DIN

V

S D

IN

V

IN

V

IN

V

Legend

Limit of Disturbance

Drainage Area

N

DRAINAGE AREA MAP

STORMDRAIN

PINEY BRANCH PARKWAY

100 200050100

Scale in feet

Time of Concentration path

M A

T C

H P

L A

N S

H E

E T A

A04

C=0.20

C=0.35

C=0.90

A=0.124 Ac, A=2.504 Ac, A=1.022 Ac, D06-1

C=0.20

C=0.35

C=0.90

A=0.734 Ac, A=1.115 Ac, A=0.821 Ac, D07-1

Tc = 11 min

Tc = 11 min

- 11 -

EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

Scale in feet

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

J u n e

D I m p e r ia l S h e b m s \w s p p b u s p w

\w s p h ie p .d in h \d

\N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

16 16

19 19

2 22

23 23

25 25

28 28

28 28

30 30

31 31

32 32

33 33 33

34 34 34 34

35 35 35

36 36

38 38

39 39

39 39

40 40 40 40

41 41 41 41

42 42

43 43

43 43

44 44

44 44

44 44

45 45

46 46

47 47

47 47

48 48

49 49

49 49

50 50

51 51

52 52

53 53

56 56

57 57

62 6

62 62

63 63

64 64 64

88 88

89 89

W

W

W

10 20

WATERSIDE DR

Tc = 15 min

Tc = 8 min

N

DRAINAGE AREA MAP

STORMWATER

WATERSIDE DRIVE

M A

T C

H P

L A

N S

H E

E T

A

MATCH PLAN SHEET A06

Legend

Limit of Disturbance

Drainage Area

Time of Concentration path

23.5 24.5

' x

A05

C=0.20

C=0.35

C=0.90

E02-4

A=0.966 Ac

A=0.090 Ac, A=0.125 Ac, C=0.20

C=0.35

C=0.90

E02-8

A=0.098 Ac

A=0.048 Ac, A=0.076 Ac, C=0.20

C=0.35

C=0.90

E03-1

A=0.664 Ac

A=0.113 Ac, A=0.227 Ac, C=0.20

C=0.35

C=0.90

E03-11

A=0.295 Ac

A=0.110 Ac, A=0.167 Ac, C=0.20

C=0.35

C=0.90

E04-1

A=0.381 Ac

A=0.225 Ac, A=0.713 Ac, E03-9

C=0.20

C=0.35

C=0.90

A=0.038 Ac

A=0.025 Ac, A=0.323 Ac, C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.000 Ac, A=0.850 Ac, E03-8

C=0.20

C=0.35

C=0.90

A=0.043 Ac

A=0.046 Ac, A=0.171 Ac, E03-3

C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.152 Ac, A=0.238 Ac, E02-62

C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.026 Ac, A=0.017 Ac, E02-63

C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.026 Ac, A=0.046 Ac, E02-64

C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.110 Ac, A=0.050 Ac, E02-60

E02-3

C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.023 Ac, A=0.069 Ac, C=0.20

C=0.35

C=0.90

A=0.000 Ac

A=0.025 Ac, A=0.069 Ac, E01-3

E01-1

C=0.20

C=0.35

C=0.90

A=0.102 Ac

A=0.577 Ac, A=0.005 Ac, C=0.20

C=0.35

C=0.90

A=0.017 Ac

A=0.037 Ac, A=0.100 Ac, E01-2

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EASTERN FEDERAL LANDS HIGHWAY DIVISION

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION ROCK CREEK PARK

Scale in feet

NPS PMIS No. 213558/211875 NPS Drawing No. 821/193873

PROJECT

NUMBER

SHEET

DC NP ROCR 503(1), 24(2)

:3

J u n e

D I m p e r ia l S h e b m s \w s p p b u s p w

\w s p h ie p .d in h \d

\N

P R

O C

R W a te r s id e P in e y B r a n c h b d r .d g n

W W

S

N

DRAINAGE AREA MAP

STORMWATER

WATERSIDE DRIVE

M A

T C

H P

L A

N S

H E

E T

A

MATCH PLAN SHEET A05

Legend

Limit of Disturbance

Drainage Area

Time of Concentration path

A06

E04-5

C=0.20

C=0.35

C=0.90

A=0.093 Ac

A=0.038 Ac, A=0.267 Ac, E04-1

C=0.20

C=0.35

C=0.90

A=0.381 Ac

A=0.225 Ac, A=0.713 Ac, E03-9

C=0.20

C=0.35

C=0.90

A=0.038 Ac

A=0.025 Ac, A=0.323 Ac,

- 13 -

Appendix B

Drainage Calculations

- 14 -

Appendix B.1

Inlet Calculations

- 15 -

Hydraulic Analysis Report

Project Data Project Title:

Designer:

Project Date: Tuesday, July 25, 2023

Project Units: U.S. Customary Units

Notes:

Curb and Gutter Analysis: D01-1 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0207 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.6568 ft

Gutter Result Parameters

Design Flow: 0.7487 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3312 ft^2

Eo (Gutter Flow to Total Flow): 0.6485

Gutter Depth at Curb: 1.4052 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.6598 cfs

Bypass Flow: 0.0889 cfs

Approach Velocity: 2.2606 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.8812

Curb and Gutter Analysis: D01-2 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0309 ft/ft

Depressed Gutter Geometry

Cross-Slope of Gutter: 0.0966 ft/ft

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.0996 ft

Gutter Result Parameters

Design Flow: 1.6447 cfs

Gutter Depression: 1.4449 in

Area of Flow: 0.5121 ft^2

Eo (Gutter Flow to Total Flow): 0.8170

- 16 -

Gutter Depth at Curb: 3.3359 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.4159 cfs

Bypass Flow: 0.2288 cfs

Approach Velocity: 3.2114 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.8609

Curb and Gutter Analysis: D01-2A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0248 ft/ft

Depressed Gutter Geometry

Cross-Slope of Gutter: 0.0966 ft/ft

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 1.7573 ft

Gutter Result Parameters

Design Flow: 0.2290 cfs

Gutter Depression: 1.5791 in

Area of Flow: 0.1589 ft^2

Eo (Gutter Flow to Total Flow): 1.0000

Gutter Depth at Curb: 2.0368 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.2290 cfs

Bypass Flow: 0.0000 cfs

Approach Velocity: 1.4412 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 1.0000

Curb and Gutter Analysis: D01-3 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0248 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.4058 ft

- 17 -

Gutter Result Parameters

Design Flow: 0.4754 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3624 ft^2

Eo (Gutter Flow to Total Flow): 0.6690

Gutter Depth at Curb: 1.6088 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.4061 cfs

Bypass Flow: 0.0693 cfs

Approach Velocity: 1.3120 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.8541

Curb and Gutter Analysis: D01-4 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0372 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 2.7619 ft

Gutter Result Parameters

Design Flow: 0.2680 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1419 ft^2

Eo (Gutter Flow to Total Flow): 0.9455

Gutter Depth at Curb: 1.2329 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.2607 cfs

Bypass Flow: 0.0073 cfs

Approach Velocity: 1.8889 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.9726

Curb and Gutter Analysis: D01-4A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0372 ft/ft

Uniform Gutter Geometry

- 18 -

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 2.9996 ft

Gutter Result Parameters

Design Flow: 0.3340 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1674 ft^2

Eo (Gutter Flow to Total Flow): 0.9197

Gutter Depth at Curb: 1.3390 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.3290 cfs

Bypass Flow: 0.0050 cfs

Approach Velocity: 1.9958 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9851

Curb and Gutter Analysis: D01-5 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0095 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 12.5138 ft

Gutter Result Parameters

Design Flow: 1.1073 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.7438 ft^2

Eo (Gutter Flow to Total Flow): 0.3448

Gutter Depth at Curb: 1.4266 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.8577 cfs

Bypass Flow: 0.2495 cfs

Approach Velocity: 1.4886 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7746

Curb and Gutter Analysis: D01-5A Notes:

- 19 -

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0095 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 7.1617 ft

Gutter Result Parameters

Design Flow: 0.2500 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.2436 ft^2

Eo (Gutter Flow to Total Flow): 0.5459

Gutter Depth at Curb: 0.8164 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.2260 cfs

Bypass Flow: 0.0240 cfs

Approach Velocity: 1.0261 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9039

Curb and Gutter Analysis: D02-1 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0703 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 7.9299 ft

Gutter Result Parameters

Design Flow: 6.0201 cfs

Gutter Depression: 0.0000 in

Area of Flow: 2.2104 ft^2

Eo (Gutter Flow to Total Flow): 0.5043

Gutter Depth at Curb: 6.6897 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 5.5018 cfs

Bypass Flow: 0.5183 cfs

Approach Velocity: 2.7236 ft/s

- 20 -

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9139

Curb and Gutter Analysis: D02-1A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0703 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 3.1608 ft

Gutter Result Parameters

Design Flow: 0.5180 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3512 ft^2

Eo (Gutter Flow to Total Flow): 0.9013

Gutter Depth at Curb: 2.6664 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.5147 cfs

Bypass Flow: 0.0033 cfs

Approach Velocity: 1.4751 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9936

Curb and Gutter Analysis: D02-2 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0504 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.3744 ft

Gutter Result Parameters

Design Flow: 2.7017 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.7279 ft^2

Eo (Gutter Flow to Total Flow): 0.6717

Gutter Depth at Curb: 3.2504 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

- 21 -

Inlet Result Parameters Intercepted Flow: 2.0666 cfs

Bypass Flow: 0.6351 cfs

Approach Velocity: 3.7117 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.7649

Curb and Gutter Analysis: D02-2a Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0504 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 3.1225 ft

Gutter Result Parameters

Design Flow: 0.6350 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.2457 ft^2

Eo (Gutter Flow to Total Flow): 0.9057

Gutter Depth at Curb: 1.8885 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.6010 cfs

Bypass Flow: 0.0340 cfs

Approach Velocity: 2.5844 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.9465

Curb and Gutter Analysis: D02-3 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0107 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 10.0618 ft

Gutter Result Parameters

Design Flow: 1.3389 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.5416 ft^2

Eo (Gutter Flow to Total Flow): 0.4155

Gutter Depth at Curb: 1.2919 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

- 22 -

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.6729 cfs

Bypass Flow: 0.6660 cfs

Approach Velocity: 2.4719 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.5026

Curb and Gutter Analysis: D02-3A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0107 ft/ft

Depressed Gutter Geometry

Cross-Slope of Gutter: 0.0966 ft/ft

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 2.9261 ft

Gutter Result Parameters

Design Flow: 0.6660 cfs

Gutter Depression: 1.8893 in

Area of Flow: 0.1901 ft^2

Eo (Gutter Flow to Total Flow): 0.9946

Gutter Depth at Curb: 2.2650 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.6636 cfs

Bypass Flow: 0.0024 cfs

Approach Velocity: 3.5034 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9963

Curb and Gutter Analysis: D03-1 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0137 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 9.0971 ft

Gutter Result Parameters

Design Flow: 1.5806 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.5669 ft^2

- 23 -

Eo (Gutter Flow to Total Flow): 0.4516

Gutter Depth at Curb: 1.4956 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.1217 cfs

Bypass Flow: 0.4589 cfs

Approach Velocity: 2.7883 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7097

Curb and Gutter Analysis: D03-1A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0137 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.7217 ft

Gutter Result Parameters

Design Flow: 0.4590 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.2243 ft^2

Eo (Gutter Flow to Total Flow): 0.6434

Gutter Depth at Curb: 0.9406 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.3948 cfs

Bypass Flow: 0.0642 cfs

Approach Velocity: 2.0468 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.8602

Curb and Gutter Analysis: D03-2 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0266 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 0.0010 ft

Gutter Result Parameters Width of Spread: 13.4129 ft

- 24 -

Design Flow: 6.3550 cfs

Gutter Depression: 0.0000 in

Area of Flow: 2.3928 ft^2

Eo (Gutter Flow to Total Flow): 0.0002

Gutter Depth at Curb: 4.2814 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 4.9002 cfs

Bypass Flow: 1.4547 cfs

Approach Velocity: 2.6559 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7711

Curb and Gutter Analysis: D03-2A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0266 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 0.0010 ft

Gutter Result Parameters Width of Spread: 7.7167 ft

Gutter Result Parameters

Design Flow: 1.4550 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.7920 ft^2

Eo (Gutter Flow to Total Flow): 0.0003

Gutter Depth at Curb: 2.4632 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.3172 cfs

Bypass Flow: 0.1378 cfs

Approach Velocity: 1.8372 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9053

Curb and Gutter Analysis: D03-2B Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0266 ft/ft

- 25 -

Gutter Width: 0.0010 ft

Gutter Result Parameters Width of Spread: 3.1901 ft

Gutter Result Parameters

Design Flow: 0.1380 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1354 ft^2

Eo (Gutter Flow to Total Flow): 0.0008

Gutter Depth at Curb: 1.0183 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.1380 cfs

Bypass Flow: 0.0000 cfs

Approach Velocity: 1.0195 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 1.0297

Curb and Gutter Analysis: D04-1 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0052 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 12.4897 ft

Gutter Result Parameters

Design Flow: 0.2680 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.4056 ft^2

Eo (Gutter Flow to Total Flow): 0.3454

Gutter Depth at Curb: 0.7794 in

Inlet Input Parameters Inlet Location: Inlet in Sag

Percent Clogging: 0.0000 %

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Perimeter: 6.6660 ft

Effective Perimeter: 6.6660 ft

Area: 1.9246 ft^2

Effective Area: 1.9246 ft^2

Depth at center of grate: 0.0564 ft

Computed Width of Spread at Sag: 11.7665 ft

- 26 -

Flow type: Weir Flow

Efficiency: 1.0000

Curb and Gutter Analysis: D04-1A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0052 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 21.4810 ft

Gutter Result Parameters

Design Flow: 1.1380 cfs

Gutter Depression: 0.0000 in

Area of Flow: 1.1997 ft^2

Eo (Gutter Flow to Total Flow): 0.2119

Gutter Depth at Curb: 1.3404 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.8702 cfs

Bypass Flow: 0.2678 cfs

Approach Velocity: 0.9485 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7647

Curb and Gutter Analysis: D04-1B Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0293 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 6.8415 ft

Gutter Result Parameters

Design Flow: 0.9605 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.6857 ft^2

Eo (Gutter Flow to Total Flow): 0.5651

Gutter Depth at Curb: 2.4055 in

Inlet Input Parameters Inlet Location: Inlet in Sag

Percent Clogging: 0.0000 %

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

- 27 -

Inlet Result Parameters Perimeter: 9.6660 ft

Effective Perimeter: 9.6660 ft

Area: 3.8493 ft^2

Effective Area: 3.8493 ft^2

Depth at center of grate: 0.1031 ft

Computed Width of Spread at Sag: 4.4367 ft

Flow type: Weir Flow

Efficiency: 1.0000

Curb and Gutter Analysis: D04-2 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0517 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 3.7944 ft

Gutter Result Parameters

Design Flow: 1.6332 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3722 ft^2

Eo (Gutter Flow to Total Flow): 0.8283

Gutter Depth at Curb: 2.3541 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.5202 cfs

Bypass Flow: 0.1130 cfs

Approach Velocity: 4.3881 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9308

Curb and Gutter Analysis: D04-4 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0114 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 10.3622 ft

Gutter Result Parameters

Design Flow: 1.7569 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.6120 ft^2

- 28 -

Eo (Gutter Flow to Total Flow): 0.4053

Gutter Depth at Curb: 1.4175 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.1430 cfs

Bypass Flow: 0.6139 cfs

Approach Velocity: 2.8706 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.6506

Curb and Gutter Analysis: D04-4A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0114 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 6.9861 ft

Gutter Result Parameters

Design Flow: 0.6140 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.2782 ft^2

Eo (Gutter Flow to Total Flow): 0.5563

Gutter Depth at Curb: 0.9557 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.4859 cfs

Bypass Flow: 0.1281 cfs

Approach Velocity: 2.2071 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7913

Curb and Gutter Analysis: D05-1 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0220 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 1.9311 ft

- 29 -

Design Flow: 0.0746 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.0410 ft^2

Eo (Gutter Flow to Total Flow): 0.9996

Gutter Depth at Curb: 0.5098 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.0746 cfs

Bypass Flow: 0.0000 cfs

Approach Velocity: 1.8182 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9999

Curb and Gutter Analysis: D05-2 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0153 ft/ft

Depressed Gutter Geometry

Cross-Slope of Gutter: 0.0800 ft/ft

Manning's n: 0.0150

Gutter Width: 1.0000 ft

Gutter Result Parameters Width of Spread: 4.9778 ft

Gutter Result Parameters

Design Flow: 0.7526 cfs

Gutter Depression: 0.7764 in

Area of Flow: 0.2219 ft^2

Eo (Gutter Flow to Total Flow): 0.6163

Gutter Depth at Curb: 1.6903 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Curb Opening

Length of Inlet: 8.0000 ft

Local Depression: 1.0000 in

Inlet Result Parameters Intercepted Flow: 0.7154 cfs

Bypass Flow: 0.0372 cfs

Efficiency: 0.9506

Curb and Gutter Analysis: D05-3 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0512 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

- 30 -

Width of Spread: 3.6422 ft

Gutter Result Parameters

Design Flow: 0.8067 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3396 ft^2

Eo (Gutter Flow to Total Flow): 0.8456

Gutter Depth at Curb: 2.2378 in

Inlet Input Parameters Inlet Location: Inlet in Sag

Percent Clogging: 0.0000 %

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Perimeter: 9.6660 ft

Effective Perimeter: 9.6660 ft

Area: 3.8493 ft^2

Effective Area: 3.8493 ft^2

Depth at center of grate: 0.0918 ft

Computed Width of Spread at Sag: 2.7097 ft

Flow type: Weir Flow

Efficiency: 1.0000

Curb and Gutter Analysis: D05-4 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0051 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 27.5362 ft

Gutter Result Parameters

Design Flow: 5.5162 cfs

Gutter Depression: 0.0000 in

Area of Flow: 1.9335 ft^2

Eo (Gutter Flow to Total Flow): 0.1680

Gutter Depth at Curb: 1.6852 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 2.0327 cfs

Bypass Flow: 3.4835 cfs

Approach Velocity: 2.8529 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.3685

- 31 -

Curb and Gutter Analysis: D05-4A

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0051 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 33.1152 ft

Gutter Result Parameters

Design Flow: 2.8530 cfs

Gutter Depression: 0.0000 in

Area of Flow: 2.7964 ft^2

Eo (Gutter Flow to Total Flow): 0.1410

Gutter Depth at Curb: 2.0267 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 2.0418 cfs

Bypass Flow: 0.8112 cfs

Approach Velocity: 1.0203 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7157

Curb and Gutter Analysis: D05-4B Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0300 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 4.7397 ft

Gutter Result Parameters

Design Flow: 0.8110 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3370 ft^2

Eo (Gutter Flow to Total Flow): 0.7290

Gutter Depth at Curb: 1.7063 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.7488 cfs

- 32 -

Bypass Flow: 0.0622 cfs

Approach Velocity: 2.4068 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9234

Curb and Gutter Analysis: D05-4C Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0051 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.1161 ft

Gutter Result Parameters

Design Flow: 0.0620 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.0667 ft^2

Eo (Gutter Flow to Total Flow): 0.6941

Gutter Depth at Curb: 0.3131 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.0492 cfs

Bypass Flow: 0.0128 cfs

Approach Velocity: 0.9289 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.7941

Curb and Gutter Analysis: D05-5 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0287 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 5.3799 ft

Gutter Result Parameters

Design Flow: 1.0255 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.4153 ft^2

Eo (Gutter Flow to Total Flow): 0.6712

Gutter Depth at Curb: 1.8529 in

Inlet Input Parameters Inlet Location: Inlet in Sag

Percent Clogging: 0.0000 %

Inlet Type: Grate

Grate Type: Curved vane

- 33 -

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Perimeter: 6.6660 ft

Effective Perimeter: 6.6660 ft

Area: 1.9246 ft^2

Effective Area: 1.9246 ft^2

Depth at center of grate: 0.1380 ft

Computed Width of Spread at Sag: 5.7258 ft

Flow type: Weir Flow

Efficiency: 1.0000

Curb and Gutter Analysis: D05-6 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0432 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 3.9455 ft

Gutter Result Parameters

Design Flow: 1.0239 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.3362 ft^2

Eo (Gutter Flow to Total Flow): 0.8114

Gutter Depth at Curb: 2.0453 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.9669 cfs

Bypass Flow: 0.0569 cfs

Approach Velocity: 3.0451 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9444

Curb and Gutter Analysis: D05-7 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0374 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 7.4247 ft

Gutter Result Parameters

Design Flow: 2.1232 cfs

Gutter Depression: 0.0000 in

- 34 -

Area of Flow: 1.0309 ft^2

Eo (Gutter Flow to Total Flow): 0.5309

Gutter Depth at Curb: 3.3322 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 1.9311 cfs

Bypass Flow: 0.1921 cfs

Approach Velocity: 2.0596 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9095

Curb and Gutter Analysis: D05-7A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0374 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 3.0151 ft

Gutter Result Parameters

Design Flow: 0.1920 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1700 ft^2

Eo (Gutter Flow to Total Flow): 0.9179

Gutter Depth at Curb: 1.3532 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.1908 cfs

Bypass Flow: 0.0012 cfs

Approach Velocity: 1.1294 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9938

Curb and Gutter Analysis: D05-16 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0322 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

- 35 -

Width of Spread: 2.9689 ft

Gutter Result Parameters

Design Flow: 0.5643 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1421 ft^2

Eo (Gutter Flow to Total Flow): 0.9231

Gutter Depth at Curb: 1.1485 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.5289 cfs

Bypass Flow: 0.0354 cfs

Approach Velocity: 3.9721 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.9372

Curb and Gutter Analysis: D05-16A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0322 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 1.0466 ft

Gutter Result Parameters

Design Flow: 0.0350 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.0177 ft^2

Eo (Gutter Flow to Total Flow): 1.0000

Gutter Depth at Curb: 0.4049 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.0350 cfs

Bypass Flow: 0.0000 cfs

Approach Velocity: 1.9822 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 1.0000

Curb and Gutter Analysis: D05-17 Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

- 36 -

Cross-Slope of Pavement: 0.0124 ft/ft

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 4.2743 ft

Gutter Result Parameters

Design Flow: 0.3051 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.1133 ft^2

Eo (Gutter Flow to Total Flow): 0.7759

Gutter Depth at Curb: 0.6359 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 3.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.2468 cfs

Bypass Flow: 0.0583 cfs

Approach Velocity: 2.6940 ft/s

Splash-over Velocity: 7.5684 ft/s

Efficiency: 0.8090

Curb and Gutter Analysis: D05-17A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0124 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 2.2934 ft

Gutter Result Parameters

Design Flow: 0.0580 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.0326 ft^2

Eo (Gutter Flow to Total Flow): 0.9863

Gutter Depth at Curb: 0.3412 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 0.0577 cfs

Bypass Flow: 0.0003 cfs

Approach Velocity: 1.7789 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.9951

- 37 -

Curb and Gutter Analysis: D06-1

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0497 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 7.0382 ft

Gutter Result Parameters

Design Flow: 9.5608 cfs

Gutter Depression: 0.0000 in

Area of Flow: 1.2310 ft^2

Eo (Gutter Flow to Total Flow): 0.5531

Gutter Depth at Curb: 4.1976 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 6.7315 cfs

Bypass Flow: 2.8293 cfs

Approach Velocity: 7.7668 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.7041

Curb and Gutter Analysis: D06-1A Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0497 ft/ft

Uniform Gutter Geometry

Manning's n: 0.0150

Gutter Width: 1.8330 ft

Gutter Result Parameters Width of Spread: 4.4580 ft

Gutter Result Parameters

Design Flow: 2.8290 cfs

Gutter Depression: 0.0000 in

Area of Flow: 0.4939 ft^2

Eo (Gutter Flow to Total Flow): 0.7569

Gutter Depth at Curb: 2.6588 in

Inlet Input Parameters Inlet Location: Inlet on Grade

Inlet Type: Grate

Grate Type: Curved vane

Grate Width: 1.8330 ft

Grate Length: 6.0000 ft

Local Depression: 0.0000 in

Inlet Result Parameters Intercepted Flow: 2.4635 cfs

- 38 -

Bypass Flow: 0.3655 cfs

Approach Velocity: 5.7283 ft/s

Splash-over Velocity: 11.6968 ft/s

Efficiency: 0.8708

Curb and Gutter Analysis: D06-1B Notes:

Gutter Input Parameters Longitudinal Slope of Road: 0.0000 ft/ft

Cross-Slope of Pavement: 0.0497 ft/ft

Unifo…