Cac packet

Citizen Advisory Committee 7:00 PM, Wednesday, February 14, 2017 – Capitol Region Watershed District 1410 Energy Park Drive, Suite 4, Saint Paul, MN 55108 Agenda

Materials Enclosed

7:00

I)

Welcome, Announcements and Updates – Introductions

7:05

II)

Public Comment for issues not on the Agenda (3 minutes per person)

7:08

III)

Approval of the Agenda

7:09

IV)

Approval of Minutes A) Approval of the January 10, 2018 Minutes

7:10

V)

District Initiatives for Review, Comment and Recommendations A) Saint Paul Natural Resources Partner Grant Programs (Mary Henke-Haney)

7:55

VI)

CAC Initiatives A) 2018 Student Learner Program Update (Swanson) B) 2017 Watershed Steward Awards Program Review (Bromelkamp)

8:10

VII)

Project and Program Updates A) Phalen Creek Daylighting Study (Fossum) B) Research Program Update (Fossum) C) Trout Brook NS Lift Station (Fossum) D) Adopt a Drain Update (Schwantes)

8:40

VIII) CAC Observer Update

8:50

IX)

Discussion A) New & Old Issues B) CAC Observer for February 21, 2018 and March 7, 2018 Board of Managers Meetings C) 2018 Agenda Plan

9:00

X)

Adjourn

W:\05 Citizen Advisory Committee\Agendas\2018\February 14, 2018 CAC Agenda.docx

Our mission is to protect, manage and improve the water resources of Capitol Region Watershed District.

Citizen Advisory Committee Meeting Wednesday, January 10, 2017 – 7:00 p.m.

CAC Members Present: Gwen Willems Pat Cavanaugh Mary Lilly Steve Duerre David Arbeit Bob Simonet Mike MacDonald Nancy Ulrich Nicole Soderholm Richard Weil Tom Elko Kathryn Swanson Bill Barton

Others Present: Belinda Gardner, CRWD Bob Fossum, CRWD Jessica Bromelkamp, CRWD Adam Flett, Friends of the Mississippi River Kate Clayton, Friends of the Mississippi Rick Sanders, Board of Managers

Members absent: Welcome, Announcements, and Updates The Citizen Advisory Committee Meeting was called to order by Co-Chair Mike MacDonald at 7:00 p.m.

Ms. Swanson asked if the committee would like another opportunity to bring aboard the next student learner in spring. The committee agreed to continue supporting the Student Learner Program.

Public Comment for issues not on the agenda Mr. MacDonald commented on the Nicollet Mall reconstruction. He contacted the engineer about the project involving BMP’s and the reply was that there were no BMP’s involved in the construction. He commented that pavers surround the trees along with engineered soil.

III. Approval of Agenda CAC 18-001 Motion: To approve the CAC January 10, 2018 agenda as amended.

Willems/Duerre Unanimously approved IV. Approval of Minutes 1

A) December 13, 2017 CAC Meeting Minutes CAC 18-002 Motion: To approve the December 13, 2017 minutes.

Duerre/Arbeit Unanimously approved V. District Initiatives for Review, Comment, and Recommendations A) Youth Environmental Stewards, Friends of the Mississippi River Ms. Bromelkamp introduced Mr. Flett and Ms. Clayton from the Friends of the Mississippi River (FMR).

Ms. Bromelkamp mentioned that the organization is a long-standing partner of the District. Mr. Flett provided information on the organization. It is a non-profit organization with four main program areas including service and education-based programs: land conservation programs, habitat restoration, water program, river corridor program. It is a communitydriven organization providing opportunities for the public involvement. FMR is celebrating 25 years. Ms. Clayton presented on programming and the organization’s philosophy. Mr. Barton suggested that the organization give more presentations in different neighborhoods.

Ms. Lilly asked in which watersheds FMR’s organization works. Mr. Flett responded that the work is within a 72-mile radius and that they do work in various watershed districts. Ms. Bromelkamp asked about FMR’s diversity statement and how it benefits FMR’s work. Ms. Clayton and Mr. Flett replied, and Ms. Bromelkamp agreed to be in contact at another time to discuss further. The committee thanked FMR for attending and presenting.

B) Como In-Lake Data Analysis Study Mr. Fossum presented the final report and summarized the analysis and the Como Lake Management Plan.

The purpose of the document to simplify the science and communicate with the public and partners; it includes background, lake history, designated uses, Water Quality issues, CRWD information and monitoring. There was much discussion on the layout and content of the brochure. Mr. Duerre commented that the plants in the lake recycle. Ms. Swanson asked about the depth of the lake. Mr. Fossum replied that it’s not so much the depth but the water quality. Ms. Cavanaugh commented on the graphics and the text and the use of the document. There was much discussion about the use of the document. Bill Barton expressed concern about the level of investment in the Como Lake subwatershed compared to other areas of the District.

The CAC thanked Mr. Fossum for his work and presentation.

VI. CAC Initiatives A) Student Learner Presentation (Soderholm) Ms. Swanson introduced Kevin Shearen, CRWD student learner who presented on Climate Change Adaptation Research. He completed the required hours for his project. The poster will be available at the awards ceremony. Mr. Shearen presented to the committee on his research and his experience with the project. His research involved obtaining relevant documents and looking at nearby watershed districts and “Our mission is to protect, manage, and improve the water resources of the Capitol Region Watershed District.”

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state agencies. His research focused on St. Paul, Maplewood, and Falcon Heights and provided information on programming that he found for each city. The committee thanked him for his work and presentation.

VII. Project and Program Updates A) Phalen Creek, Daylighting Study Update Update will be provided at the next meeting.

B) Research Program Update Update will be provided at the next meeting.

C) Trout Brook Nature Sanctuary Update Update will be provided at the next meeting.

VIII. CAC Observer Update Ms. Cavanaugh provided an update on the previous Board meetings.

IX. Discussion a. New & Old Issues b. CAC observer for January 17, 2018 and February 3, 2018 Board of Managers Meeting c. Upcoming CRWD Events A) New & Old issues Mr. Barton commented that he would like to have more research on the Mississippi River. He would like to see more work done with the river. He asked to see more from the District on this topic. Ms. Gardner recommended that Mr. Barton send her an email outlining his comments and suggestions.

B) CAC Observer for the Board of Managers Meetings January 17, 2018 and February 3, 2018 No volunteers.

C) CRWD Watershed Awards Program The Watershed Steward awards will be on January 18, 2018. Ms. Bromelkamp asked the group to RSVP. X. Adjourn CAC 17-040 Motion: To adjourn the January 10, 2018 CAC Meeting.

Weil/Duerre Unanimously approved The meeting was adjourned at 8:50 PM. “Our mission is to protect, manage, and improve the water resources of the Capitol Region Watershed District.�

3

Respectfully submitted, Belinda Gardner

“Our mission is to protect, manage, and improve the water resources of the Capitol Region Watershed District.�

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February 14, 2018 VI. CAC Initiatives B) 2017 Watershed Steward Awards Program Review (Bromelkamp)

DATE: TO: FROM: RE:

February 7, 2018 Citizen Advisory Committee Jessica Bromelkamp 2017 Watershed Awards Program Review

Background On Thursday, January 18, CRWD hosted the 2017 Recognition & Awards Ceremony at the Amherst Wilder Foundation. The event was moved to January this year to avoid scheduling conflicts in December.

Approximately 88 staff, Citizen Advisory Committee members, Board of Managers and partners attended the event. Plaques were presented to each of the winners and they were invited to briefly share their experiences working with the District. As always, hearing from the District’s partners was one of the highlights of the evening.

The auditorium set-up included 60-inch round tables and chairs, high top tables, a dessert and beverage station, an education table and easels for Master Water Steward Project posters, and one of Urban Boatbuilders canoes. The linens and centerpieces were simple, yet elegant. Boca Chica, a Saint Paul owned restaurant and catering company, provided a Mexican buffet and staffed the event. Staff opted for a buffet instead of appetizers to address concerns about the quantity of food provided in year’s past. The District received several positive comments about the catering at the event.

Half Acre Photography was hired to capture candid photos of our guests, portraits of the winners and photos of the CAC, Board and staff. The photos will be incorporated into CRWD’s print, social media and website to help tell the stories of these partnerships and projects.

Issues The District strives to improve this event every year. Please consider the following categories in your review of the 2017 Recognition & Awards Ceremony.

• • • • • • • •

Venue Catering Photography Presentations Event timing Nominations process Awards categories Invitees

Action Requested

Our mission is to protect, manage and improve the water resources of Capitol Region Watershed District.

Please provide feedback for staff consideration at the February meeting.

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Lower Phalen Creek Daylighting Feasibility Study

Technical Memorandum To:

Melanie Kleiss, Lower Phalen Creek Project

From: Jonathon Kusa, PE and Ben Swanson, PhD, Inter-Fluve Project: Lower Phalen Creek Daylighting Feasibility Study Date: September 21, 2017

The Lower Phalen Creek Project (LCPC) retained Inter-fluve, Inc. (Inter-Fluve) to assess the feasibility of daylighting lower Phalen Creek, which is currently conveyed in storm sewer for much of its length between Lake Phalen and the Mississippi River. Based on available data, we identified three discrete reaches of Phalen Creek (Reaches 2, 5, and 7) that are recommended for further investigation and analysis for potential daylighting. Reach 4 is the stream segment within Swede Hollow, which is currently open channel, and is anticipated to be integrated into the daylighted system with future perennial baseflow. Some reconstruction of the Swede Hollow stream segment is anticipated, but not analyzed as a part of this feasibility study. The ultimate goal would be to daylight segments of the creek to restore ecological function, provide recreational and educational opportunities, and improve watershed health.

This memo summarizes the collected data and identifies potential reaches feasible for daylighting. The desktop analysis completed includes proposed stream profiles, alignments, and cross-sections; an opinion of estimated project costs by reach; and the general water quality benefits of daylighting streams. Field review and a more detailed engineering evaluation for each potential stream reaches is recommended.

Existing Conditions To assess the technical feasibility of daylighting lower Phalen Creek, Inter-Fluve collected available electronic spatial data from the City of Saint Paul (City), the Minnesota GeoSpatial Commons, the Capitol Region Watershed District (CRWD), and the Ramsey Washington Metro Watershed District (RWMWD). The data included the following: x

Transportation Network (roads, railroads, etc)

x

Geology (surface geology, bedrock geology, soils)

x

Topography (LiDAR, contours)

x

Tax Parcels (attributed)

x

General Land Use

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x

Tax Parcels

x

Stormwater Sewer

x

Sanitary Sewer

The data was compiled graphically and is summarized in the attached appendices. We have included a brief summary below of each appendix figure and the associated analysis.

Transportation Network –Appendix A The Phalen Creek corridor runs through an urban area crossed by city streets, highways, and a railroad. The three reaches proposed for daylighting will flow under 9 roads, 2 trails, and one set of railroad tracks. The proposed pipe will be buried under an additional 9 roads, 3 trails, and another set of railroad tracks.

Topography – Appendix B Local elevations range between 700ft and 900ft above mean sea, with a distinct upland between 850 and 900ft, moderately steep valleys along the I-35E and Phalen Boulevard corridors, and a relatively steep drop through riverside bluffs to the Mississippi River floodplain below. The Lower Phalen Creek corridor will likely begin at approximately 860ft elevation and end in a pipe at approximately 608ft. After emerging under a rise at Earl St, it will gradually steepen until it reaches Swedes Hollow, where it will fall 100ft to the floodplain downstream of I-94 (Figures 1 and 2).

Bedrock Geology– Appendix C Bedrock geology indicates potential historical stream alignment locations based on underlying bedrock indicators, includes location of exposed bedrock of various types and known stratification of the local geologic layers. In this area, locations that have eroded through the Platteville-Glenwood Limestone to the underlying Jordan Sandstone provide evidence of waterinfluenced erosion of the landscape, similar to what is visible in the Mississippi River gorge.

Surficial Geology – Appendix D Surficial geology provides evidence of more recent former locations of drainage paths through the landscape, based on more recent geological and climatic changes that influence the shallow surficial geology of the evaluated area. Several areas show evidence of Meltwater Stream Sediment within the surficial geology, providing evidence of former stream alignments.

Soil Types – Appendix E The lower Phalen Creek corridor begins above the Prairie Du Chien dolostone and turns west across the Jordan Sandstone and Platteville Limestone. It then spills back through Swede

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Hollow, which comprises Pleistocene stream sediments over more dolostone. Most of the rock is overlain by glacial meltwater sediments that form sandy loam soils. However, the soils are highly disturbed urban soils and often covered by fill and(or) impervious surfaces.

General Land Use – Appendix F and Tax Parcels – Appendix G Most of the area around Phalen Creek is residential, but the general corridor that includes the existing pipe and proposed alignment is primarily parkland or undeveloped property, with some industrial and commercial use. The proposed alignment is primarily in land designated as park or preserve, although some sections within proposed pipe reaches may be through undeveloped or industrial property. The proposed Phalen Creek alignment primarily flows through property currently controlled by Ramsey County and the City of Saint Paul.

Storm Water Sewer – Appendix H and Sanitary Sewer – Appendix I The storm and sanitary sewer systems cover the entire urban area within the Lower Phalen Creek corridor, and all the existing channel and tributary channels are piped. The Beltline storm water pipeline is within the upstream end of the corridor, south of Lake Phalen. The Beltline pipe crosses the proposed channel alignment at Jessamine Ave. The Phalen Creek storm sewer runs along the proposed alignment for most of its length.

Proposed Conditions Channel Alignment and Profile The topography, surface geology, landuse, parcel, and utility data through the lower Phalen Creek corridor, along with digital imagery, allowed for the development of an initial channel alignment describing the route and profile of a new, daylighted Phalen Creek channel (Figures 1 and 2). As described in the existing conditions section, the proposed channel will be a mix of buried and open sections. Three potentially daylighted sections (Reaches 2, 5, and 7) were determined based on adjacent landuse and infrastructure (i.e., width available for a channel and floodplain), as well as excavation volumes and their associated costs of removal. Proposed slopes range between 0.003ft/ft to 0.025ft/ft. Steeper sections will likely require larger bed and bank materials to account for higher energy flows. See Table 1 for a summary of evaluated technical elements.

Based on experience with similar projects, Inter-Fluve recommends constructing a diversion structure at the outlet of Lake Phalen, which would allow for control of water entering the proposed daylighted segment of Phalen Creek. Utilizing a diversion, the system will be “offline” from the existing stormwater system and designed to have consistent base-flow that fluctuates within a narrow range. The proposed system will supplement the existing storm

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Lower Phalen Creek Daylighting Feasibility Study

sewer network and not replace the conveyance capacity currently available. As an “off-line” channel, the proposed stream can be designed as a typical spring-fed stream, which have small channel widths and minimal floodplains. The limited scale of the proposed system will be required given the limited area available in some segments.

Channel Cross-Section An initial channel cross-section was designed as a trapezoid channel with a bottom width of 4feet, side slopes of 4:1 (horizontal:vertical), and channel depths equal to excavation from existing ground surfaces. At a design flow depth of 2 feet, the proposed channel could pass flows from 50cfs to 314cfs, at slopes from 0.003ft/ft to 0.1ft/ft, respectively (Appendix J). If a bypass is designed for approximately 1 cfs, which is a reasonable flow to maintain ecological integrity of the stream, the proposed channel dimensions will allow for vegetation, large wood, and other flow restricting habitat features. It would also allow for encroachment in some areas for public access and bridge crossings.

The side slope can be flattened depending on space and aesthetic desires. Additionally, a floodplain bench (10-foot minimum) is desired where space allows. The bench provides an area for important soil and vegetation interactions with floodwater and runoff, as well as space for storing water during high flows. Although desired, adding a floodplain will not be critical since the proposed flow diversion will reduce the “flashiness” of storm runoff to the channel.

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Lower Phalen Creek Daylighting Feasibility Study

Figure 1. Location map of the Lower Phalen Creek daylighting project.

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Lower Phalen Creek Daylighting Feasibility Study

Figure 2. Profile of existing land surface and proposed Lower Phalen Creek channel. Reach 4 represents Swede Hollow, which is already an open-channel.

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Lower Phalen Creek Daylighting Feasibility Study

Proposed Open Channel Segments Rounded Excavation Depth (ft)

Stationing

Reach

Bed Slope From

To

a b

18000 12100 11600

16500 11600 11400

c

11400

d

Technical Hurdles associated with Proposed Open Channel Segment

Top Width (ft)

Space Available General Lateral for Max Top Width Min Ave Max Width at 4:1 Side Available (ft) Slope

Min

Ave

Max

0.3% 0.6% 0.3%

2.0 4.0 3.0

5.0 6.0 4.0

11.0 7.0 4.0

20 36 28

44 52 36

92 60 36

Y N Y

10200

0.5%

2.0

4.0

6.0

20

36

52

N

10200

9125

1.2%

3.0

7.0

11.0

28

60

92

N

e

9125

8300

0.75%

3.0

4.0

7.0

28

36

60

Limited

f

8300

7800

0.4%

3.0

4.0

6.0

28

36

52

Limited

g

7800

6900

2.0%

2.0

3.0

5.0

20

28

44

Y

h

6900

6550

0.5%

3.0

3.0

3.0

28

28

28

Y

i

6550

6000

2.5%

2.0

6.0

8.0

20

52

68

Y

15700

450

0.5%

2.0

4.0

6.0

20

36

52

Y

7

5

2

Limiting Station Limits

Structure Impacts

>100 N/A N 30 to >100 12100- 11900 Potential >100 11500-11400 N 25, 10, 40 feet from D/S to 10850-10550 Potential U/S 40 to >100 10200-9600 N Bruce 40 8800-8300 Vento Trail Bruce 30 N/A Vento Trail Bruce 40 7450-7350 Vento Trail Bruce 30 N/A Vento Trail Bruce 40 to >100 6550 - 6400 Vento Trail >100 2300-1900 Trails

Table 1. Summary of proposed daylighted channel segments and associated technical issues.

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Over/Near Tree Road Phalen Creek Impacts Crossings Sewer

Railroad Crossings

Public Property

Y N N

N Y Y

1 0 1

0 0 0

Y Y Y

N

N

2

0

Y

N

Y

1

0

Y

Y

Y

1

0

Y

Y

Y

0

0

Y

Y

Y

1

1

Y

N

Y

1

0

Y

Y

Y

0

0

Y

Minor

N

2

0

Y

Lower Phalen Creek Daylighting Feasibility Study

Channel Excavation Along the three proposed daylighting sections, expected excavation depths range from 2- to 11feet, with average depths of excavation between 3 feet and 7 feet (Table 1). Excavation volumes were calculated using the area defined by the design cross-section with the average excavation depth at each section of each reach and the length of each section. Volumes estimates were 5,480 CY for Reach 2, 25,750 CY for Reach 5, and 6667 CY for Reach 7, and the total estimate for all three reaches is approximately 38,000 CY (Table 2).

Reach 7 a b c d e f g h i

5

2

Excavation Min Avg 2 5 4 6 3 4 2 4 3 7 3 4 3 4 2 3 3 3 2 6 2 4

Max 11 7 4 6 11 7 6 5 3 8 6

Channel Length (ft) 120 168 80 80 224 80 80 48 48 168 80

1500 500 200 1200 1075 825 500 900 350 550 1850 Total

Excavation Volume (CY) 6667 3111 593 3556 8919 2444 1481 1600 622 3422 5481 37896

Table 2. Estimated channel dimensions and excavation volumes for daylighted reaches.

Channel Costs Expected channel costs are based on the initial excavation volume estimates (Table 1) and include $452,000 ($800 / linear ft), $880,000 ($600 / linear ft), and $3,400,000 ($560 / linear ft) for reaches 7, 5, and 2, respectively (Table 3). Because the channel will be constructed in an urban area featuring multiple road crossings, sewer lines, walkways, and other infrastructure,

Under Review

additional contingency costs were added. These costs were calculated as a percentage of the estimated excavation cost.

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Lower Phalen Creek Daylighting Feasibility Study

Volume Excavation (cu yds)

Reach

7 a b

Utility Street/Sidewalk Landscaping Earthwork Cost Contingency Contingency / Vegetation ($40/cuyd) (100%) (25%) (25%)

Design/ Oversight (30%)

Other Misc.

Contingencies (50%)

TOTAL

$/LF

6667 3111 593

$ $ $

266,700 $ 124,500 $ 23,800 $

266,700 $ 124,500 $ 23,800 $

66,675 $ 31,125 $ 5,950 $

66,675 $ 31,125 $ 5,950 $

80,010 $ 37,350 $ 7,140 $

133,350 $ 62,250 $ 11,900 $

880,100 $ 410,900 $ 78,500 $

600 800 400

3556 8919

$ $

142,300 $ 356,800 $

142,300 $ 356,800 $

35,575 $ 89,200 $

35,575 $ 89,200 $

42,690 $ 107,040 $

71,150 $ 178,400 $

469,600 $ 1,177,400 $

400 1,100

2444

$

97,800 $

97,800 $

48,900 $

322,700 $

400

1481

$

59,300 $

59,300 $

14,825 $

14,825 $

17,790 $

29,650 $

195,700 $

400

1600

$

64,000 $

64,000 $

16,000 $

16,000 $

19,200 $

32,000 $

211,200 $

200

622

$

24,900 $

24,900 $

6,225 $

6,225 $

7,470 $

12,450 $

82,200 $

200

3422 5481

$ $

136,900 $ 219,300 $

136,900 $ 219,300 $

34,225 $ 54,825 $

34,225 $ 54,825 $

41,070 $ 65,790 $

68,450 $ 109,650 $

451,800 $ 723,700 $

800 400

c d e 5 f g h i 2

Estimates 24,450 $ Under 24,450 $ Review 29,340 $

Table 3. Opinion of probable construction cost for for proposed daylighted channel.

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Lower Phalen Creek Daylighting Feasibility Study

Water Quality Assessment Numerous studies have focused on the impacts of stream daylighting on fish habitat (e.g.

Pinkham 2000; Jones 2001), or the sociological, aesthetic, or economic reasons for daylighting (e.g. Pinkham 2000; Jones 2001; Shin and Lee 2006; Buchholz and Younos 2007; Sinclair 2012).

Daylighting buried streams may foster a number of social, economic, and ecologic improvements, including, but not limited to, the following: 1. Relieve flooding issues by reducing “pinch� points at under-sized culverts and providing greater flow capacity by recreating a floodplain along the channel.

2. Reduce runoff velocities by increasing roughness and water storage/attenuation.

3. Improve water quality by exposing water to air, sunlight, vegetation, and soil 4. Recreate aquatic and riparian habitat and improve wildlife passage 5. Provide recreational, leisure, and(or) educational amenities 6. Beautify neighborhoods, attracting residents and visitors and possibly contributing to greater civic pride (Pinkham, 2000; Wilde et al. 2011).

In natural, open channels, sunlight and biological production play important roles in controlling normal levels of nutrients and even some pollutants. On its own, sunlight breaks down organic compounds to more biologically useful forms. Sunlight also provides the energy required for algae and other plant production, which in turn, drives the productivity and diversity of bacteria and grazer species that help use and breakdown nutrients and metals in the water. Natural, open streams also generally flow through a variety of stream side environments, resulting in heterogeneous channel forms and processes driven by varying bed materials (e.g., sand, gravel, wood), bed forms (e.g, pools and riffles), groundwater-surface water interactions, and floodplain-channel interactions. This physical channel heterogeneity generally increases residence times, connectivity, and transient storage of both water and sediment along the channel. Placing streams in underground pipes limits these ecological processes along the impacted reach, thereby reducing conditions conducive for supporting anticipated levels of bioproductivity and biodiversity; nutrient retention, uptake, and processing (e.g., denitrification); ecosystem metabolism and food web dynamics; and others (Pennino, et al 2010;Figure 3).

Restoration of open, channelized streams increases nitrogen use by plants and animals, storage in sediment (Bukaveckas 2007; Klocker et al. 2009) and denitrification (Kaushal et al. 2008b; Harrison et al. 2011), and enhances carbon processing (Lepori et al. 2005; Sivirichi et al. 2011).

Few studies, however, have measured the direct effects of daylighting on stream biogeochemistry. Daylighting a buried stream drastically transforms the system, and opening the system to light and more natural channel conditions, likely dramatically improves Inter-Fluve, Inc.

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Lower Phalen Creek Daylighting Feasibility Study

biogeochemical processing. Added heterogeneity, especially if built into a restoration plan that includes riffles, pools, eddies, pocket water, etc. will add habitat for a range of fish, macroinvertebrates, and others, as well as provide areas for sediment and water retention and local groundwater-surface water interaction (i.e., hyporheic exchange). The few studies that have examined the impact of daylighting streams found decreases in fecal coliform levels and increasing taxa richness, (Charbonneau and Resh, 1992), and(or) a change in invertebrate composition from biofilm feeding collector-browser communities to algal grazer communities (Neale and Moffat 2016). Pennino, et al. (2010) reported stream burial reduced nitrate uptake rates by a factor of 8 and general primary production by a factor of 11 along impacted reaches of Maryland streams, and indicated that daylighting could alter these systems to improve both carbon and nitrogen processing.

Figure 3. Conceptual diagram of the hypothetical changes in stream ecology arising from daylighting (From Neale and Moffet, 2016).

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References Buchholz, T., and T. Younos. 2007. Urban stream daylighting: case study evaluations. Virginia Water Resources Research Center, Blacksburg, VA. Bukaveckas, P.A. 2007. Effects of channel restoration on water velocity, transient storage, and nutrient uptake in a channelized stream. Environmental Science and Technology 42.5: 1570-1576.

Charbonneau R, and V.H. Resh. 1992. Strawberry Creek on the University of California, Berkeley campus: a case history of urban stream restoration. Aquatic Conservation: Marine and Freshwater Ecosystems 4: 293-307.

Harrison, S.S.C., J.L. Pretty, D. Shephard, A.G. Hildrew, and C. Smith. 2004. The effect of instream rehabilitation structures on macroinvertebrates in lowland rivers. Journal of Applied Ecology 41: 1140-1154.

Jones, S.W. 2001. Planning for Wildlife: Evaluating Creek Daylighting as a Means of Urban Conservation. Dalhousie University, Halifax, Canada.

Kaushal, S.S., K. Delaney-Newcomb, S.E.G. Findlay, T.A. Newcomer, S. Duan, M.J. Pennino, G.M. Sivirichi, A.M. Sides-Raley, M.R. Walbridge, and K.T. Belt. Longitudinal changes in carbon and nitrogen fluxes and stream metabolism along an urban watershed continuum. Biogeochemistry.

Klocker, C.A., S.S. Kaushal, P.M Groffman, P.M. Mayer, and R.P. Morgan. 2009. Nitrogen uptake and denitrification in estored and unrestored streams in urban Maryland, USA. Aquatic Science 71.4: 411-424.

Lepori, F., D. Palm, and B. Malmqvist. 2005. Effects of stream restoration on ecosystem functioning: detritus retentiveness and decomposition. Journal of Applied Ecology 42.2: 228-238.

Neale, M.W., and E.R. Moffett. 2016. Re-engineering buried urban streams: Daylighting results in rapid changes in stream invertebrate communities. Ecological Engineering 87: 175184.

Pennino MJ, Kaushal SS, Beaulieu JJ, Mayer PM, Arango CP. Effects of urban stream burial on nitrogen uptake and ecosystem metabolism: implications

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Pinkham, R. 2000. Daylighting: New Life for Burid Streams. Rocky Mountain Institute, Colorado.

Shin, J.H., and I.K. Lee. 2006. Cheong Gye Cheon restoration in Seoul, Korea. Civil Engineering (Proceedings of ICE) 159: 162-170.

Sinclair, C. 2012. An exploration of stream daylighting and urban attitudes towards the einvironment. Trail Six 6: 68-79.

Sivirichi, G.M., S.S. Kaushal, P.M. Mayer, C. Welty, K.T. Belt, T.A. Newcomer, K.D. Newcomb, and M.M. Grese. 2011. Longitudinal variability in streamwater chemistry and carbon and nitrogen fluxes in restored and degraded urban stream networks. Journal of Environmental Monitoring 13.2: 288-303.

Wild, T.C., J.F. Bemet, E.L. Westling, and D.N. Lerner. 2011. Deculverting: reviewing the evidence on the daylighting and restoration of culverted rivers. Water and the Environment: 25.3: 412-421.

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APPENDICES A - I

EXISTING CONDTIONS MAPS A – Transportation Network B – Topography C- Bedrock Geology D – Surface Geology E – Soils F- Landuse G – Land Parcels H – Storm Sewer Network I – Sanitary Sewer Network

Inter-Fluve, Inc.

¯

Wakefield Lake

Proposed Stream Alignment

Hydrologic Network

Round Lake

Pipeline Stream/River

Road Network Frost Lake

Interstate Highway U.S. Highway

Lake Phalen

State Road

Wheelock Pkwy E US Hwy 61

County Road Municipal Road

I- 35E

Edgerton St

Maryland Ave E

Case Ave n le a Ph

v Bl

d

E 7th St

Ph alen Blvd

St

Earl St

E

h 7t

Johnson Pkwy

Minnehaha Ave E

y Hw US

Rd

52

tS tN

rd pa e Sh

Wa rn e rR

US Hwy 10

I- 94

d

0

0.25

0.5

36 wy H Co

1 Miles

Mississippi River

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Transportation Network

Appendix A

Proposed Stream Alignment

¯

Round Lake

Elevation Value High : 296.844

850

Frost Lake

Low : 209.145

900

900

Lake Phalen

900

Topographic Contours - 50ft Topographic Contours - 10ft US Hwy 61

Wheelock Pkwy E Lake Phalen

900

900

850

90

I- 35E

Edgerton St

Maryla nd Ave E

850

850

900 900 Case Ave

900 800

a Ph

850

n le

vd Bl

850

E 7th St

Phale n Blv d

850 850

Minnehaha Ave E

800

850

h 7t E 900

900

St

Johnson Pkw y

I- 35E

750

Earl St

800

900

750

9

850

85

750 750 700

850 I- 94 US Hw y 10

900 850 US Hw

rt be St N

0.25

Rd

2 y5

Ro

0

e Sh

rd pa

700

800 Wa rne

rR

d

800 750

700 0.5

1 Miles

H Co

wy

36

70

Mississippi River

700

Lower Phalen Creek Daylighting Feasibility Study 700 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

700

Topography 700

Lower Phalen Creek Project 733 St.Paul, MN 55106 700 612-581-8636

700 B Appendix 700

¯

Opg

Wakefield Lake

Geologic Formations Opg

Round Lake

Opg Jordan Sandstone (Cj)

Osp

Platteville-Glenwood Limestone (Opg)

Opg

Prairie Du Chien Dolomite (Opc) Frost Lake

St. Peter Sandstone (Osp) Lake Phalen

Opc US Hwy 61

Wheelock Pkwy E

Cj

Edgerton St

Maryla nd Ave E

Osp Case Ave

a Ph

n le

vd Bl

Osp E 7th St

Opg

Phale n Blv d

H

Johnson Pkw y

St

Earl St

E

h 7t

l ood St

Minnehaha Ave E

Opg

US

US Hw y 10

I- 94

Hw

Rd

e Sh ssippi ss i

2 y5

rd pa

Wa rne

rR

d

er Riv

0

Mi

0.25

Mississippi River

Opc

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

0.5

H Co

wy

36

1 Miles

Bedrock Geology

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Appendix C

¯

Wakefield Lake

Surface Geology

Round Lake

Lake Holocene Sediments Meltwater Stream Sediment

Frost Lake

Glacial Till

Lake Phalen

Pleistocene stream sediment Wheelock Pkwy E US Hwy 61

Paleozoic bedrock (exp)

I- 35E

Edgerton St

Maryla nd Ave E

Case Ave

a Ph

n le

vd Bl

E 7th St

Phale n Blv d

St

Earl St

E

h 7t

Johnson Pkw y

Minnehaha Ave E

US

US Hw y 10

I- 94

Hw 2 y5

St N

e Sh

R rd pa

d

Wa rne

rR

d

0

0.25

Mississippi River

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

0.5

H Co

wy

36

1 Miles

Surface Geology

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Appendix D

Soil Type

¯

urban - loamy sand

udorthents (fill)

urban - loam

loamy fine sand

urban - sandy loam

loamy sand

urban - silty loam

silty loam

muck

sandy loam

rock

urban

water

Round Lake

Frost Lake Lake Phalen

Wheelock Pkwy E

I- 35E

US Hwy 61

Edgerton St

Maryla nd Ave E

Case Ave n le a Ph

vd Bl

Phale n Blv d

St

Earl St

E

h 7t

Johnson Pkw y

Minnehaha Ave E

US

US Hw y 10

I- 94

Hw

N St

e Sh

Rd

0.25

2 y5

rt be

0

rd pa

Wa rne

Mississippi River

0.5

rR

d

1 Miles

H Co

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

wy

36

Soil Types

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Appendix E

0

0.25

0.5

ÂŻ

1 Miles

Frost Lake

Wheelock Pkwy E US Hwy 61

Lake Phalen

I- 35E

Edgerton St

Maryla nd Ave E

Case Ave

a Ph

n le

vd Bl

Phale n Blv d

St

Earl St

E

h 7t

Johnson Pkw y

Minnehaha Ave E

US

US Hw y 10

I- 94

Hw 2 y5

N St

R rd pa

d

e Sh Use Land

Wa rne

rR

d

36

Industrial and Utility

y Mixed Use Hw Residential Co

Agricultural

Mixed Use Industrial

Multifamily

Farmstead

Institutional

Single Family Detached

Golf Course

Mixed Use Commercial

Single Family Attached

Park, Recreational, or Preserve

Retail and Other Commercial

Undeveloped

Extractive

Office

Open Water

Mississippi River

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Land Use

Appendix F

¯

Wakefield Lake

Land Use

Round Lake

Institutional/Common Areas Park, Recreational, or Preserve Undeveloped

Frost Lake

Right-of-way/Easement

Lake Phalen

US Hwy 61

Wheelock Pkwy E

I- 35E

Edgerton St

Maryla nd Ave E

Case Ave

a Ph

n le

vd Bl

E 7th St

Phale n Blv d

St

Earl St

E

h 7t

Johnson Pkw y

Minnehaha Ave E

US

US Hw y 10

I- 94

Hw

tN

0

d

0.25

2 y5

tS

e Sh

R rd pa

Wa rne

0.5

1 Miles

rR

d

C

y3

6

Mississippi River

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

w oH

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Tax Parcels

Appendix G

¯

Wakefield Lake

Beltline Storm Sewer Centerline

Catch Basin

) "

Round Lake

Phalen Creek Sewer Centerline

Manhole

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Proposed Stream Alignment

Hydrologic Network Pipeline )" " )

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Pump Station

US Hwy 61

) "

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" ) ) " )" " ) ) " ) " )" " )" ) ) " )" )" )" " ) ) )" " ) " " ) )" " )" " ) ) " ) )" )" " ) ) )" " ) ) ) " t)" ) " ) " " "" ) ) " ) " )" S ) " ) )" " )" )" ) " ) ) ) ) " )" " ) " ) " ) " ) " " )" ) ) ) " ) " ) ) " ) " ) " ) " ) " ) " ) " )" " th " )" " ) ) ) " " ) " )" " )" " ) " ) " ) ) " ) " )" " ) " ) )" " ) " ) " ) " ) " )" ) " ) " )" " )" ) " ) " )" " ) ) " )" " ) " 7" ) " ) " ) ) ) " ) ) " ) " ) " )" " ) ) " ) ) ) " )" " ) ) " )" " ) " E" )" " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " )" ) " ) " ) " " )" " )" ) " )" " ) " " ) " )" ) " ) " ) " " )" " )" " )" ) " )" ) ) ) ) ) " ) ) )" " ) " ) " )" ) " ) ) " ) )" ) " ) ) " ) ) " ) " " ) " ) " )" " ) " ) " " ) " ) " )" ) " " ) ) " ) " ) " ) )" " )" " ) " ) ) " " )" " ) " ) )" " ) " )" ) " ) ) ) ) " " ) " ) " ) " ) " ) " )" " ) ) " ) " ) " ) " ) " ) " )" " ) " )" " )" )" " ) " ) " ) ) ) " ) " ) " ) " )" " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) )" ) ) ) " " ) " ) " " ) " ) " " ) " )" " ) " ) " ) )" " )" " ) " )" " ) " ) " )" ) " ) " )) " )" " ) " )" " )" " ) " ) " )" " ) " ) " ) " )" " ) " ) ) ) " ) ) " ) " ) " ) ) ) " ) " ) " " ) " ) " ) ) " )" " ) ) " )) ) " ) " )" " ) " ) " ) )" " ) " " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) )" " ) ) " " ))" " ) " ) )" " ) " ) )" " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " " ) " ) " ) " ) ) " ) " ) " ) " )" " ) " )" " ) )" " )" " ) " ) " ) ) )" )" ) " " ) " ) ) " ) " " ) ) " ) " ) ) ) " ) " " ) " " ) ) " ) ) )" "" )" " ) ) " ) ) " ) " )" " ) ) " ) ) ) " " ) " )" )" " ) " ) " ) " ) " )" ) ) " ) " ) " ) " " ) ) " ) " " ) )" " ) " ) " ) " )" ) " ) " ) " ) " ) " " ) " " ) " " ) ) )" " ) ) " )" ) ) " ) " ) " ) " ) " ) " ) ) " ) ) " )" " ) " ) " " ) " ) " ) " )" " )" " )" ) " )" ) ) " ) " )" " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " )" " )" " )" " ) )" ) " ) ) ) " ) " ) " ) " ) " ) " )" " )" " ) ) " ) " ) " ) " ) " )" " ) " ) " " ) )" " ) " ) " ) " )" " ) ) " )" " )" ) ) ) )" " )) " ) " )" " ) " ) " ) )" " )" ) " ) ) " )" " )" ) ) " ) " )" ) " ) ) " ) " " ) " ) " ) " ) ) " ) " " ) " ) " ) " ) )" ) ) )" )" " ) ) " " )" " ) ) )" " ) " ) " )" ) ) " ) " )" " ) " ) " )" " ) " ) ) " )" " ) ) ) " )" ) " " ) )" " ) " ) " ) " " )" " ) ) " ) " ) " ) " ) " )" " ) )" " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " )" " ) ) " " ) ) " ) " )" ) ) " ) " ) ) " " ) " ) " ) " ) " )" " )" " )" " ) ) " ) " )" " ) )" " ) ) " )" " ) " )" " ) " ) ) ) ) " ) " ) " " ) " ) ) " )" " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " )" )" " ) ) " ) " "" )) " ) ) " )" " ) " )" " ) ) " )" " ) " ) " ) " ) " ) )" ) " ) " ) " ) " " ) ) ) " ) " )" " ) " )" " )" ) ) ) )" " ) )" " ) " ) " ) " ) " ) " ) " )" " )" " ) ) " ) " )" )" " )" ) " ) " ) " ) " ) " ) " ) " )" " ) " ) " ) " ) " ) " ) ) " " ) " ) " ) )" " " )" " ) " ) " ) ) " ) " ) " ) " ) " ) " ) ) " ) " ) ) " ) " ) " ) " ) " ) " ) " " ) " ) " ) " ) " ) " ) ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " )" " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) )" " ) " ) " ) " )" " ) " ) ) " ) " ) " ) " " ) " ) " )" ) ) " ) ) " ) " ) " ) " ) " ) " ) " " )" ) " ) " ) " ) " ) " ) ) " )" " ) )" )" " ) ) ) " ) ) " ) " ) " )" " ) " ) " " ) " )" " ) " )" " ) ) )" )" " ) )" ) )" " )" " ) " )" ) " ) ) " ) " " ) " )" " ) " ) " ) " )" )" " ) " ) " " ) )" " ) " ) ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " " )) " " )" )" " ) ) " ) ) ) " " ) " " ) " " ) ) ) " ) " ) " ) " )" " ) " ) ) " )" " ) " )" )" ) " ) " )" " ) " )" ) " )" " ) " )" " )" " ) " )" " )" " ) " ) " " ) " ) " ) " ) " ) ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) ) ) ) ) ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " " ) " ) " ) " ) " ) " )" ) " " ) " ) ) " ) " ) ) " " ) ) " ) " " ) " ) ) " ) " ) " ) ) )" " )) " ) " " ) )" " ) " )" " )" " )" " ) " ) " ) " )" " ) " )" " ) ) ) " )) " ) " " ) " ) " ) 94 ) ) )I" ) " " ) " )" ) " " )" " ) " ) ) " ) " ) " ) " " ) " ) " ) " )" " ) " )" " ) )" " ) ) " " ) ) " ) " ) " ) " ) " ) " " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) ) " ) " ) " ) ) " ) " ) ) " )" ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) )" " ) " ) " )" " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " )" " ) " ) )" " ) " )" " ) ) )" " ) " ) ) ) " ) " ) " ) " ) ) " ) " ) " ) ) " "" ) " )" ) " ) " " ) ) " ) " ) " ) ) " ) " ) " ) " " ) )" )" " ) " ) " ) " ) " ) ) " )" ) " )" " )" " ) " )" ) " ) " ) )" " )" " ) ) " ) " ) " ) " )" " ) " ) ) " ) " ) " ) " )" " ) " ) " ) " " ) " ) ) ) " ) " ) " ) " ) " ) " ) " ) " ) " )" " ))" ) ) " ) ) " ) )" " ) " ) ) " )" " ) " ) " ) " ) " )" " ) " ) " )" " ) " ) " ) ) " ) " )" " ) )" " ) )" " ) ) " )" " ) )" " ) " ) " ) " ) ) " ) " )" " ) " " )" " ) " ) " ) " ) " " ) ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " ) " ) " ) " )" " ) " ) " ) " ) " ) " ) " " ) " ) " " ) " ) " ) " ) " ) " ) ) ) )" " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " " ) " ) " ) " ) ) " ) " ) " " ) ) " ) ) " " ) " ) ) " " ) " ) )" " ) ) " )" " ) " )" " ) " ) " ) " ) " ) " ) " ) ) )" " ) " ) " " ) " ) " ) " ) " ) " ) ) " ) " ) ) " ) " ) " ) " ) " )" " ) " )" ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " " ) ) " " ) " ) " " ) " ) " )" " )" ) " ) " ) " ) " Wa )) ) ) " ) ) ) " )" " ) " ) " ) ) " ) " ) )" " ) " ) " )" " ) " ) " )) )" " )" )" " ) " rne )" " )" " ) ) " ) " ) " ) " ) " ) " ) " )" " ) " ) " ) " ) " ) " r ) " ) " ) " ) ) " ) " ) " ) " ) " ) " ) ) Rd " ) )" " ) ) " )" " )" " Rd" ) ) " ) " ) " ) " ) ) " ) " ) " ) " " Mississippi River rd ) " ) ) " )" " ) " a ) " ) " )" " ) ) " ) " )6 " ) " ) " ) " ) " p ) ) " ) " ) " ) " " ) ) 3" " ) " ) e ) " )" ) " y ) " ) " ) " )" " h" )w " ) ) " )" " ) )" " S" ) " ) " )" " H )" )o" " )" ) ) " ) " ) " ) ) " ) ) )" " C ) " )" ) " 0 0.25 0.5 1 )" " ) ) " )" " )" ) " ) " ) ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " Miles ) " ) " ) " ) " " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " )" " )" ) " " ) ) " ) ) ) " ) " )" ) " )" " )" )" " ) " " ) )" " ) " ) " ) " )" ) ) ) ) ) )" ) " ) " " )" " )" " )" " )" ) " ) )" " ) " ) " ) ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) ) " ) " " ) " ) ) )" ) " )" " )" " ) " ) )" )" ) " " ) " ) " ) " ) " ) " ) " ) " ) " ) " " ) ) " ) " )" " ) " ) " )" " ) " ) )" ) ) )" ) " ) " ) " )" " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " ) " )" " ) " ) " )" " ) " ) ) " ) " ) " ) " ) " ) )" ) " )" " ) " ) ) " )" ))" " ) )" " ) ) " ) " ) " )" " ) ) " " )" " ) )" " )" ) " )" " ) " ) " ) " Lower Phalen Creek Project ) 2121 Randolph Ave, Suite 200 ) " ) " ) "" ) ) " ) " ) ) " ) " ) " ) " ) " )" " ) ) " ) " 733 St.Paul, MN 55106

Hazelwood St

Earl St

! (

Johnson Pkw y

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! ( (! ! ( (!

! ( ! (

! (! ! (( ( ! (! ! ( ! ( ! ( ( ( ! (! ( ! (! ! ( !

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! (! (! ! (! ! ( ( k ( j ! ( ! ( ! ( k j ! ( ! ( ! (! (! ! ( ! ( ! ( ( ! ( (! ! ( ! ! ( (! (! (! ( ! ( ! ( Lower Phalen Creek Daylighting Feasibility Study ! ( ! ( ( k j ! ! ( ! ( St.Paul, MN 55105 651-243-9700

US Hw y 10

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612-581-8636

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Storm Sewer Network

Appendix H

¯

Proposed Stream Alignment Pump Stations

Frost Lake

Manholes Force Mains Gravity Mains

Wheelock Pkwy E US Hwy 61

Hydrologic Network

Lake Phalen

Pipeline Stream/River

I- 35E

Edgerton St

Maryla nd Ave E

Case Ave

a Ph

n le

vd Bl

E 7th St

Phale n Blv d

St

Earl St

E

h 7t

Johnson Pkw y

Minnehaha Ave E

US

US Hw y 10

I- 94

Hw

d

2 y5

rt be N St

e Sh

R rd pa

Mississippi River

Wa rne

rR

d

C

0

0.25

Lower Phalen Creek Daylighting Feasibility Study 2121 Randolph Ave, Suite 200 St.Paul, MN 55105 651-243-9700

0.5

w oH

y3

6

1 Miles

SanitarySewer Network

Lower Phalen Creek Project 733 St.Paul, MN 55106 612-581-8636

Appendix I

Lower Phalen Creek Daylighting Feasibility Study

APPENDIX J

CHANNEL CROSS SECTION DESIGN

Inter-Fluve, Inc.

Lower Phalen Creek Daylighting Feasibility Study

CHANNEL GEOMETRY CH AN N EL GEOMET R Y - comple x cha nne l LE FT BAN K R IGH T BAN K Min Cha nne l BOT T OM SLOPE SLOPE Excva tion W ID T H H V H V (ft) (ft)

Minimum Cha nne l Ca pa city

AR EA (s.ft.)

W ET T ED T OP H YD R .

AVG PER IM. W ID T H R AD IU S SLOPE R OU GH (ft) (ft) (ft) (ft/ ft) (n)

W AT ER VEL (ft/ s)

Q (cfs)

W/D R a tio

ma x she a r (psf)

a ve she a r (psf)

IMS a ve (in)

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0030

0.040

2.3

54

10.0

0.4

0.2

0.6

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0040

0.040

2.6

63

10.0

0.5

0.3

0.8

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0050

0.040

2.9

70

10.0

0.6

0.4

1.0

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0060

0.040

3.2

77

10.0

0.7

0.4

1.2

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0075

0.040

3.6

86

10.0

0.9

0.5

1.5

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0120

0.040

4.5

109

10.0

1.5

0.9

2.4

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0200

0.040

5.9

140

10.0

2.5

1.5

4.0

4.00 4.00

1.00 1.00

4.00 4.00

1.00 1.00

2.00 2.00

4.0 4.0

24.00 24.00

20.5 20.5

20.0 20.0

1.17 1.17

0.0250 0.1000

0.040 0.040

6.5 13.1

157 314

10.0 10.0

3.1 12.5

1.8 7.3

5.0 19.9

T OP

H YD R .

AVG

CH AN N EL GEOMET R Y - comple x cha nne l LE FT BAN K R IGH T BAN K Min Cha nne l BOT T OM SLOPE SLOPE Excva tion W ID T H

Min, Ave , Ma x T op W idth a nd XS Are a

W ET T ED PER IM.

W AT ER VEL

Q

W/D

ma x she a r

a ve she a r

IMS a ve

H

V

H

V

(ft)

(ft)

(s.ft.)

(ft)

(ft)

(ft)

(ft/ ft)

(n)

(ft/ s)

(cfs)

R a tio

(psf)

(psf)

(in)

4.00

1.00

4.00

1.00

2.00

4.0

24.00

20.5

20.0

1.17

0.0050

0.040

2.9

70

10.0

0.6

0.4

0.9

4.00

1.00

4.00

1.00

3.00

4.0

48.00

28.7

28.0

1.67

0.0050

0.040

3.7

178

9.3

0.9

0.5

1.4

4.00

1.00

4.00

1.00

4.00

4.0

80.00

37.0

36.0

2.16

0.0050

0.040

4.4

352

9.0

1.2

0.7

1.8

4.00

1.00

4.00

1.00

5.00

4.0

120.00

45.2

44.0

2.65

0.0050

0.040

5.0

606

8.8

1.6

0.8

2.3

4.00

1.00

4.00

1.00

6.00

4.0

168.00

53.5

52.0

3.14

0.0050

0.040

5.7

949

8.7

1.9

1.0

2.7

4.00

1.00

4.00

1.00

7.00

4.0

224.00

61.7

60.0

3.63

0.0050

0.040

6.2

1,393

8.6

2.2

1.1

3.1

4.00 4.00

1.00 1.00

4.00 4.00

1.00 1.00

8.00 11.00

4.0 4.0

288.00 528.00

70.0 94.7

68.0 92.0

4.12 5.58

0.0050 0.0050

0.040 0.040

6.8 8.3

1,948 4,373

8.5 8.4

2.5 3.4

1.3 1.7

3.5 4.7

Inter-Fluve, Inc.

AR EA

W ID T H R AD IU S SLOPE R OU GH

Capitol Region Watershed District Citizen Advisory Committee 2018 Agenda Plan CAC Meeting Date January 10, 2018

District Initiatives Friends of the Mississippi River Partner Grant Presentation, Adam Flett Phalen Creek Daylighting Study CRWD Research Program Trout Brook Nature Sanctuary Lift Station.

Saint Paul Natural Resources Partner Grant Programs Adopt a Drain Program

CAC Initiatives 2018 CAC Meeting Plan Watershed Steward Awards Event Service Learning Student Presentation

Service Learning Student

April 11, 2018

Lakes Report Snelling Midway Redevelopment 2017 Stewardship Grants Program Master Water Stewards Program 2017 Permit Program Review

May 9, 2018

2019 Budget

February 14, 2018

March 14, 2018

June 13, 2018 July 18, 2018

2018 Student Learner Program 2017 Watershed Steward Awards Program Review

Election of Officers Student Worker Program CAC Tour Planning Service Learning Student Summer Tour Service Learning Student

September 12, 2018

2018 Budget Targeted Watershed Program 2018 Budget Review and Comment on 2019 Budget 2018-2019 Construction Projects

October 10, 2018

New Building Open House

Service Learning Student Watershed Steward Awards Program Moos Lecture Series Watershed Steward Awards Program Moos Lecture Series Service Learning Student Watershed Steward Awards

August 8, 2018

November 14, 2018

December 1, 2018

2017 Reappointment Recommendations 2019 Partner Grants Program Updated: December 27, 2017 W:\05 Citizen Advisory Committee\Agendas\2018 CAC Agenda Plan 1-10

-17.doc

2018 Awards Program Adoption Moos Lecture Series Watershed Steward Awards Program