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HomeMy WebLinkAbout2020-12-14 21-042 Resolve 12/14/202021-042 12/14/2020 21-042 Engineering Resolve N/A Title, Resolve Ratifying City Manager's Action for Signing and Submitting a Grant Application to the Maine Department of Environmental Protection for a Culvert Upgrade on Grandview Avenue This resolve will ratify the City Manager's submission of a grant application to the Maine Department of Environmental Protection (DEP) for culvert work on Grandview Avenue. The Maine Department of Environmental Protection (DEP) had requests for proposals for an available $5,000,000 in grant funds for road-stream crossing upgrades that were due by November 16, 2020. The existing culvert across Arctic Brook on Grandview Avenue is a 54-inch corrugated metal culvert. The culvert is believed to be around 50 years old, and has deteriorated badly. The culvert is also perched above the stream grade at the outlet, and undersized for the watershed area it serves. Arctic Brook, which has been classified as an Urban Impaired Stream by the Maine DEP, has a watershed management plan that was approved in 2016. This plan identifies this stream crossing as needing replacement with a larger culvert. The Engineering Department has drafted plans to replace the culvert with a 103-inch wide by 71-inch tall corrugated metal pipe arch at an estimated cost of $136,716.66. The grant application requests 50% ($68,358.33) of this funding, with the other 50% to come from the Stormwater Utility Fund. Infrastructure Committee 12/08/2020 Recommend for passage Consent 12/14/202021-042 CITY OF BANGOR RESOLVE 12/14/2020 21-042 Schaefer Ratifying City Manager's Action for Signing and Submitting a Grant Application to the Maine Department of Environmental Protection for a Culvert Upgrade on Grandview Avenue WHEREAS, the culvert crossing Arctic Brook on Grandview Avenue is failing and undersized, WHEREAS, the Engineering Department is seeking to replace said culvert as recommended by the Arctic Brook Watershed Management Plan, WHEREAS, Arctic Brook is an Urban Impaired Stream which may benefit from a properly-sized culvert, WHEREAS, funds are available from the Maine DEP through a grant application process, Be it Resolved by the City Council of the City of Bangor, The City Manager's Action for Signing and Submitting a Grant Application to the Maine Department of Environmental Protection RFP#202008127 2020 Grants for Stream Crossing Public Infrastructure Improvements for a culvert replacement project over Arctic Brook on Grandview Avenue is hereby ratified. CKTYFBANGOR JOHN THERIAULT PE, PTOE CITY ENGINEER November O9,2O20 John K48C|8iDB Maine DEP RPF#2O2OO8l27Coordinator Submitted electronically to: Proposals@maine.gov Re: RFP#202008127 — 2020 Grants for the Stream Crossing Public Infrastructure |nnprOvern9nt5 Dear Mr. K4a[|3in2: The City of Bangor is pleased to provide you with our application for funding improvements to the existing stream crossing OfArctic Brook atGrandview Avenue. The existing corrugated metal pipe isshowing signs ofdeterioration due tDits age and isabarrier tOaquatic organisms. Grandview Avenue isanimportant cross-link between Broadway and Essex St. Users ofthis road include residents, commuters, customers of businesses in and around the Broadway Shopping Center, students of Bangor High School, worshippers at 2 churches, visitors and staff of a nursing home, staff and patients at a pediatric office, as well as students and staff of Husson University. A planned replacement should disrupt traffic much less than a failure. Arctic Brook isclassified asanUrban Impaired Stream b«the Maine DEP. The City has 8 watershed -based management plan to improve water quality in Arctic Brook. The plan recommends that this culvert be replaced with one of the appropriate size with a natural bottom for this stream to attain Class B water quality standards. The City intends to replace the existing structure with 3 pipe arch with strearnbed material placed within. This will increase hydraulic capacity while lessening erosive flows, as well as increase habitat connectivity for both aquatic and terrestrial animals living inand around the stream corridor. We hope that you will consider this important project fOrfunding through this grant program. Should you have any questions concerning our application, please donot hesitate tOcall rneat 207-992-4243. Sincerely,' Rich ay StmrnnvvaterUtility Technician City ofBangor 7SHARLOW STREET BANGOR, /NE 0440I TELEPHONE: (2O7)992 -42J0 FAX: (207)992-4l94 State of Maine Department of Environmental Protection 2020R1 GRANT APPLICATION FORM RFP# 202008127 2020 Grants for Stream Crossing Public Infrastructure Improvements The Maine Department of Environmental Protection is inviting submittals for projects to implement public infrastructure improvements at stream crossings on municipal roads to upgrade culverts, in order to improve fish and wildlife habitat and increase community safety. Please refer to the full RFP instructions before completing this application. Applicants must submit a separate proposal for each project. For the current RFP version, current year Application, Question & Answer Summary and revisions related to this RFP, can be obtained at the following website: hqp§-://www.ma'ine._qov/dafs/bbm/iDrocurementservices/vendors/grants Grants are awarded based on the following evaluation criteria: Public Infrastructure Information The organization qualifications and public infrastructure information will be scored based on the applicant's ability to demonstrate the following: the degree of urgency of the proposed project, including whether a culvert is at high risk of failure due to age, location within a watershed or reach with high flood risk or severe flood history; the expected contribution to reducing the frequency or severity of flooding to upstream and downstream communities and improving storm water management within the proposed project area; and the impact to community safety. Environmental Benefit The environmental benefit will be scored based on the applicant's ability to demonstrate the following: 1) the extent to which there is a stated benefit to fish, including sea run fish, wild brook trout, Atlantic salmon, and wildlife; 2) the statewide prioritization for aquatic connectivity and presence of Atlantic salmon, alewives, diadromous fish species, and wild brook trout; and 3) stream crossing design criteria incorporated for resiliency and habitat improvement, including the extent to which the project incorporates "Stream Smart" practices (see Part ll. B. of RFP 202008127). Proposed Culvert/Crossing Cost & Budget Information The funding request will be scored on the degree to which the project represents an efficient and cost-effective investment including: the total proportion of funding from other sources (Local Matching Funds); avoided costs associated with the project; and project efficiency demonstrated by the engineering design or other factors. Application Submittal Content 1. Cover Letter The Bidder is to submit a cover letter (on applicant letterhead) signed by an official authorized to submit a proposal on behalf of the applicant. This letter should include a basic description of the proposed project, confirm the structure proposed for replacement is located on a municipally -owned road, and an estimate of the amount of time needed to complete the replacement stream crossing, if awarded. Maximum of 2 pages. 2. Application Applicants must submit a completed 2020 Proposal Application Form. Be as concise as possible with all answers. If additional space is needed, include a separate sheet noting the section and question number. 3. Supplemental materials Do not include oversized drawings. Pages must be 8.5" by 11" paper size. Note — All photos should be dated. Inclusion of supplemental materials labelled "Optional' is highly recommended and may provide scoring benefits where applicable. Maximum of 20 pages. Include the following documents (in color where possible): a. Attachment 1: Photos of the existing culvert crossing: i. Photos showing condition of culvert/crossing. ii. Photos showing downstream side of culvert/crossing looking at the crossing and downstream from the crossing (including water level at end of culvert). If possible, include photos of the inside of the crossing structure iii. Photos showing inlet side of culvert/crossing looking at the crossing and downstream from the crossing (including water level at end of culvert/crossing). iv. Photos showing safety conditions such as failures, flooding, sinkholes, collapsing structures, erosion undermining, etc., if available. b. Attachment 2: Maps: i. A location map with the project location clearly marked, including the water body(s), town(s), and road names ii. An aerial photo showing the location of the crossing with all bankfull width reference locations shown. Note: Averaged field measurements of bankfull width are considered the most accurate and greater confidence in the measurements will positively affect scoring where applicable. c. Attachment 3: Diagrams, plans, and additional information i. A plan view sketch or plan of the existing and proposed crossings showing, at a minimum: the roadway, culvert location, and stream to show the alignment of the stream and culvert with respect to the roadway (include arrows showing the direction of stream flow), and the proposed location of any cofferdams and dewatering areas; ii. OPTIONAL: A longitudinal profile of the stream with stream slope (%). Inclusion could result in additional points, where applicable; iii. OPTIONAL: A cross section along the length of the proposed culvert showing the roadway, embedment amount, location of any footings, and amount of road cover; or any conceptual or engineering plans developed. Inclusion could result in additional points, where applicable. d. Attachment 4: Other submissions i. Attach a copy of the StreamStats ( ttose//streamstats.usgs.gov/ss/) Basin Characteristics Report for "Bankfull Statistics" and "Peak -Flow Statistics" at the crossing location (See Figure 1) ii. Provide a document containing the "Layer details" for the crossing from Maine Stream Habitat Viewer (http://webapps2.cgis-soI tions.com/aineStreamViewer/ (See Figure 2) iii. OPTIONAL: Any letters of support from Natural Resource Agencies or Organizations, public safety, or other notable supporting organizations. Inclusion could result in additional points, where applicable. Figure 1 How to Create a Maine Stream Habitat Viewer Site ID Resort Step 1: Go to http://webapps2.c.ais-solu.tions.com/MaineStreamViewer/ Step 2: Zoom into the stream crossing of interest. Step 3: In the Layers tab in the left-hand toolbar, make sure all "Crossings and Barriers" boxes are checked. Step 4: Click on the shape closest to the stream crossing of interest Step 5: Select the "Identify" tab, then click the location of the stream crossing Step 6: Select all the text under "Layer Details" on the left side of the screen (without the photos). Step 7: Copy and paste the data into a separate document to attach with the application Figure 2 How to Create a Basin Characteristics Report using Stream Stats Step 1: Go to https://strep stats.usps.pov/ss/ Step 2: Use the map to find your stream crossing of interest or use the search tool by typing the location in the left hand search bar. Zoom to the location of the stream crossing. Step 3: Select the State for your Study Area. Click "Maine" in the blue button/ Step 4: Zoom to the location of the stream crossing, click the blue "Delineate" button Step 5: Click the location of the stream crossing on the map and wait for the basin delineation, then click "continue" Step 6: Under "Regression Based Scenarios" select "Bankfull Statistics" and "Peak -Flow Statistics", then click "Continue" Step 7: Select "Basin Characteristics Report" and click "Continue" Step 8: Print the Stream Stats Report 4 Maine Department of Environmental Protection Request for Proposals for Stream Crossing Public Infrastructure Improvement Projects Proposal Application Form — 2020R1 RFP# 202008127 I. Applicant Information Applicant Name City of Bangor, Maine Applicant Mailing Address City State Zip 73 Harlow Street Bangor ME 04401 *Applicant Contact Phone # *Contact Email Address 207-992-4243 Richard. mav- anaormaine.gov *Please note that the applicant contact should be the individual that will be the primary contact for the Department should the project be awarded. II. Agent/Consultant Information X Check if not applicable Agent Name Agent Mailing Address I City I State I Zip Agent Phone # I Agent Email Address III. Applicability Please indicate the ability to demonstrate the following: ❑X The proposed structure to be upgraded is a culvert located on a municipal road and is not owned by a private or state entity. ❑X The proposed project includes matching funds from local or other sources IV. Culvert/Stream Crossing Information 1. Site Information A. Municipality or Unorganized territory where ! Bangor project will take lace: B. GPS Location of crossing (Decimal degrees North West preferred) 44.829066 -68.776537 Available on Google Maps by clicking the location on the ma C. Culvert/crossing location ! The culvert crosses Grandview Avenue approximately Name of the road on which the 1,280 feet west and south of Essex St., approximately culvert/crossing is located and the nearest 925 feet east and north of Hillside Avenue, and intersection. approxi atel1,800 feet east and north of Broadway. D. Watershed Location: !i. HUC12 Watershed: (can be found ! Lower Kenduskeag Stream List the HUC12 Watershed, name ! in Maine Stream Habitat Viewer) of the stream, brook, or the water body the culvert is located on ii. Waterbody name at project ! Arctic Brook and the downstream waterbodies I location ("Project Waterbody'): ---------------------------------------------' ----- ------------------------------------------------ it drains to. Kenduskea Stream iii. "Project Waterbody" drains to: g 1 2. Existing Crossinq Information Culvert/Crossing Shape Culvert Material Stream Bed Material in ❑ Closed bottom Box ❑ Open bottom box 0 Corrugated Metal Pipe culvert ❑ Closed bottom Box ❑x Corrugated Metal Pipe ❑x none ❑ Open bottom box ❑ Smooth Metal Pipe ❑ Partial ® Circular ❑ Concrete ❑ Continuous ❑ Open bottom arch ❑ Plastic 3. ❑ Closed bottom arch (pipe arch) ❑ Stone Average 7.1 ❑ Oval ❑ Other (describe): a brid e/s an ❑ Bridge or span 5.5 6.8 Culvert Width (diameter if round) Height Length Approximate Culvert StreamStats ! 5.35 feet http s.//streamstats. us s. ov/ss/ Age #1 52" 52" 72' 50 years (#2) Width (#3) Max Depth 3. Proposed Crossing Information Culvert/Crossing Shape Culvert Material 1. ❑ Closed bottom Box ❑ Open bottom box 0 Corrugated Metal Pipe ❑ Smooth Metal Pipe ❑ Circular ❑ Open bottom arch ❑ Concrete ❑ Plastic ❑ Oval ❑ Bridge or span 5.5 ❑ Stone ® Closed bottom arch (pipe arch) ❑ Other (describe): Downstream Widths ❑ Other (describe: 2. 3. Width (diameter if round) Height Average 7.1 Length If proposing a brid e/s an 6 5.5 6.8 Estimated Bankfull width (measured average bankfull width values are the most accurate method) Clear Span StreamStats ! 5.35 feet http s.//streamstats. us s. ov/ss/ Total Span 103" 71 " 80' Width Length Max Depth 13. Will the new crossing be sized to be 1.2 times the bankfull width of the 0 Yes ❑ No stream? 4. Stream Channel Description Measured Bankfull Width (beyond culvert influence, min. of 3 upstream and downstream measurements) Upstream widths 1. 2. 3. 4. 5. Average 6.4 Average value of upstream & downstream measuremen is 7 5.5 7 6 6.5 Downstream Widths 1. 2. 3. 4. 5. Average 7.1 9 9.5 5.5 6 5.5 6.8 Estimated Bankfull width (measured average bankfull width values are the most accurate method) Maine Stream Habitat Viewer http-.//webapps2.cgis-solutions.com/MaineStreamViewer/ StreamStats ! 5.35 feet http s.//streamstats. us s. ov/ss/ Other Hydraulic & Hydrologic Analysis (if performed) Has a Stream Bed Substrate analysis been performed? ❑ Yes 0 No Explain: Size of Downstream scour pool ❑ N/A, No scour pool present Width Length Max Depth V. Public Infrastructure Information (25 Points total): Yes No 1. Has the crossing caused flooding or overtopping of the road in the last 10 years? ❑ 2. How many times in the last 10 years? indicate if approximate) 3. Does this crossing regularly become obstructed by debris or require cleaning? ❑ How often? 4. Has the crossing been damaged by flooding in the last 10 years? ❑ 5. Do you have any photos of the flooding or damage? Please provide if available ❑ 6. Has the crossing ever partially or fully failed in the last 10 years? ❑ 7. List any dates and describe the severity of flooding/damage associated with the crossing. Include the duration of any full or partial road closures. There is significant corrosion and degradation of the existing 52" CMP pipe. There is soil visible through the pipe walls where they have 8. Describe any issues with the current become compromised. There are also some significant deformations condition of the crossing on the crown of the pipe under the roadway. The sizing of the current pipe has created a significant scour pool downstream, over which the culvert is perched. 9. In how many years from now do you ! Less than ! 1-3 5-10 3-5 years ! 10+ years estimate the culvert/crossing would have a 1 year years years complete failure, a complete collapse, or ❑ ❑ ® ❑ ❑ total washout? 10. Would any homes, businesses, or critical infrastructure be completely cut-off from Yes No access if the crossing were to completely fail? ❑ 11. If the culvert/crossing fails, how many Homes Businesses Critical businesses, or other critical infrastructure Infrastructure would be completely cut off or require a Detour ! Cut-off ! Detour ! Cut-off Detou Cut-off detour? r (Note: see definition of "cut off' in 325 30 RFP#202008127 12. Using the space below, discuss what impacts would occur if the culvert/crossing were to fail. For instance, are there critical public services (fire or police station, hospital, school, public works facility) located on this road that would be cutoff or required to detour? Grandview Avenue is an important link between Essex St and Broadway. The next closest connections between these 2 heavily travelled roads are approximately 6,100 feet north at Burleigh Rd. and 2,250 feet south at Lancaster Ave, which is not designed to be a through way and is not capable of handling heavy traffic. Motorists would have to travel to Stillwater Ave. about 6,100 feet if they did not "cut through" at Lancaster Ave. Bangor High School is accessed at via Hobart St. about 1,000 feet from the Arctic Brook culvert on Grandview Avenue. Although Hobart St. also connects to Broadway, the Grandview Avenue entrance is used primarily by vehicles accessing the High School from "in town" and from the north. Emergency vehicles such as fire and police would need to find alternate routes. The City of Bangor experiences very heavy traffic flow on Broadway as well as consistent traffic on Essex Street. Grandview Avenue is an important connector which helps connect to two roads and avoids overburdening either one. Data from the Maine DOT Public Map 13. Approximately how many vehicles per day travel this road viewer states that this section of (if known)? ! Grandview Avenue has an Annual Average Daily Traffic count of 4,317 vehicles. 14. If an alternate route exists, what is the minimum distance to ! Minimum distance to detour as described travel from one side of the crossing along a detour to access in section 12 on public roadways is 2.1 the other side of the crossing? ! miles. 15. Using the space below, discuss any other safety concerns about the existing culvert/crossing. The current culvert has several holes where soil is visible through the pipe wall. These will soon be large enough to allow for major movement of soils, which could cause sinkholes in the roadway. There are also two deformities in the crown of the pipe near the center of the pipe, which is under the roadway. The pipe has not been thoroughly inspected all the way through, but the easily accessible sections near the inlet and outlet are in poor condition. See photos for details of failures. High velocity flows through this undersized pipe may accelerate the deterioration. VI. Environmental Information (50 Points total): Yes No 1. Are fish present in the stream? ! ❑ Source(s) of Information: ❑ MDIFW ❑ MDMR ❑ Maine Stream Habitat Viewer ❑ Other (describe): 2. Has this crossing been identified by the Maine Stream Habitat Viewer, MDIFW, MDMR, ! ❑ or her entity_as_a barrier to_ fish _ passage? ....................................................... Provide source of barrier ! This culvert has not been evaluated by state agencies to my information knowledge. However, it is a barrier to fish passage and other aquatic organisms because it is perched, and because of the velocity in the undersized pipe. 3. Is the existing culvert/crossing surveyed on Maine Stream Habitat Viewer? ! ❑ tt ://we a s2.c is-solutions.co / aineStrea Viewer/ If yes, what is the Maine Stream Habitat Viewer Crossing ID# for the crossing proposed for upgrade? 4. What is the Maine Stream Habitat Viewer Crossing ! Upstream Crossing ID# ! Downstream Crossing ID# ID# for the crossings upstream and downstream of the proposed upgrade? ! Private Road off Lasalle ! Broadway Shopping Drive Center 60" CMP Are these considered to be a barrier to fish ❑ Barrier ❑ Barrier passage? ❑ Partial/Potential ® Partial/Potential Barrier Barrier ❑ Not a Barrier ® Not a Barrier 5. Distance to the next barrier identified by the Maine Upstream Downstream Stream Habitat Viewer (miles)? N/A 0.25 6. Indicate if any of the following species have been identified above or just below the crossing. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ❑ Wild brook trout ❑ Sea -run brook trout ❑ Atlantic salmon (sea -run) ❑ Atlantic salmon (landlocked) ❑ Alewives ❑ Blueback herring ❑ American eels ❑ Sea -run rainbow smelt ❑ other diadromous (sea -run) species (list): This stream is impaired for aquatic life—replacing this culvert is the first step in establishing a community of aquatic life that could support fish. While none of the above fish have been observed in the vicinity of the crossing, we would like to create a crossing that will be beneficial for macroinvertebrates, amphibians such as salamanders, and reptiles such as native turtles. This crossing would also allow small mammals to cross the road without putting themselves in danger of being hit by vehicular traffic. 7. Have you contacted MDMR regarding this stream and crossing? ❑ T-------------------------------------------------------------------------------------------------------------------------------------------------- If yes, please ! This stream is currently impaired for aquatic life according to Maine DEP. include any relevant information they provided or attach letter of support 8. Have you contacted MDIFW regarding this stream and crossing? ! ❑ T-------------------------------------------------------------------------------------------------------------------------------------------------- If yes, please ! This stream is currently impaired for aquatic life according to Maine DEP. include any relevant information they provided or attach letter of support 9. Are there any state or federal Threatened or Endangered species (aquatic or ❑ terrestrial) according to Beginning with Habitat Map Viewer within 1 mile of this _crossing?- ----------------------- If yes, list identified presence or habitat(s): Yes No 10. Is the project adjacent to other significant resources (e.g. Significant Wildlife Habitat, ! ❑ significant fisheries, "Heritage" waters, alewife ponds, etc.) according to the Maine Stream Habitat Viewer or Beginning with Habitat Map Viewer? - - - - - ---------------------------------------------------------------------------------------------------------------------------L-----------i---------------- If yes, list identified resource(s): 11. Have any priority habitats such as spawning areas been identified by the Maine ❑ Habitat Stream Viewer, MDIFW, or MDMR? ---------------------------------------------------------------------------------------------------------------------------------------- If yes, List habitats identified and source of information: 12. Is the current crossing undersized?® ❑ -------------------------------------------------------------------------------------------------------------------------I------------- If yes, how was this ! The current crossing is a circular pipe that is 2.5 feet smaller than the bankfull determined and what width. It has created a large scour pool downstream. was the metric used? 15. Will the new crossing contain an open bottom? ❑ 16. Will the new crossing be embedded below the stream bed? ® ❑ 17. If the new crossing will be embedded, is stream bed backfill proposed?® ❑ -------------------------------------------------------------------------------------------------------------- --------- ------ ---- If yes, how will material ! For budgeting purposes, we have proposed a 6 -inch layer of MDOT type D used for streambed backfill gravel supplemented with rocks ranging from 12-18 inches in diameter and be determined? placed to provide flow complexity and encourage stream bank formation. It is believed that the native soil in the area would be difficult to stabilize within the stream crossing structure because it is a silty soil. We would have preferred to add a greater depth of stream bed material within the structure, but existing utilities water and sewer resent elevational conflicts. Over time, we expect that banks will form within the crossing. We may seek additional guidance on streambank material and placement design prior to bidding on this replacement. 18. Will the new crossing contain constructed stream banks within the structure? ❑ 19. Will this new crossing meet Maine DOT 100 -yr flood criteria? ® ❑ 20. Is the upstream or downstream habitat degraded due to this crossing's orientation, ® ❑ slope, or sizing? (e.g. large scour pool, instability or stream bank erosion, significant downstream sedimentation, etc.) ------------------------------------------------------------------------------------------------------------------------------------------------------------------- Describe: ! There is a large scour pool downstream of the structure. The culvert is perched above this scour pool, and the alignment is slightly off. 21. Is the crossing located on a stream or reach where other culvert/crossing upgrades ❑ have been performed within the last 5 years leading to improved fish passage? T---------------------------------------------------------------------------------------------------- ---------------------------- If yes, describe any ! We have a fluvial geomorphic restoration design drafted by CES Inc. additional biological, ecological, in partnership with Field Geology Services on the upstream side of or cost-saving benefits that could ! this culvert. The project begins upstream of Grandview Avenue and result from the current project: extends 1,028 feet along the stream. It includes floodplain restoration, log crib constrictor installation, and woody plantings. Construction is planned for 2021. 22. Describe any reasons the crossing or the waterbody should be considered a priority for restoration, including any input from Maine DMR or Maine IF&W Biologists: Arctic Brook is impaired for aquatic life measured by a lack of macroinvertebrates. The upper reaches of this stream have been the least altered over the years when compared to the lower reaches of the stream. Providing better habitat continuity may help to improve the recruitment 23. Provide other information about the design or importance of the proposed project that benefits fish and/or wildlife such as terrestrial passage, stream banks within the structure, stream simulation design, or other factors: The increased width of the structure will allow for stream banks to be formed within the culvert. This will allow for passage of terrestrial and semi -aquatic animals in addition to fish. VII. Cost & Budget Information (25 Points total): 1. How much money has been spent on physical repairs within the last 10 years on the culvert/crossing (exclude normal maintenance costs such as painting). 2. Describe the ! The upstream side of the crossing has been heavily armored using granite slabs types of and rip -rap. It is unknown exactly when this material was placed. expenditures made on repairs Yes No 3. Do you have engineered design plans and construction specifications for the ! ® ! ❑ replacement culvert/crossing?___________________________ A. If yes, identify who designed the ! We have a set of preliminary plans for this structure plans, and when the plans were prepared by the City's Engineering Department. The plans completed. were created in the fall of 2019. There are some drawing updates that will be needed including the details for 10 material within the culvert, relocation of the water main (as requested by Bangor Water District), and scour pool restoration. B. Will final plans be stamped by a Maine Licensed Engineer? ! ® ! ❑ 4. If the new crossing will be over 20 feet in width, are you planning to request that the ❑ Maine Department of Transportation (MDOT) take responsibility for the structure? If yes, have you had the design reviewed by MDOT's Bridge Maintenance ❑ Program? If No, please contact MDOT Bridge Program as soon aspossible) Important NOTE: For all crossings proposed to be 20 feet or greater, please refer to Maine DOT's Bridge Design Guide: _https://www.maine.gov/mdot/bdg/ and contact MaineDOT Bridge Program for requirements and limitations. 5. This project will likely require a permit from the Army Corps of Engineers. Have you ! ❑ contacted Army Corps regarding thisproject? 6. Have you submitted an application to Army Corps of Engineers? ❑ 7. Do you already have a permit in -hand from Army Corps of Engineers? ❑ 8. What is the anticipated construction ! 5-10 work days duration? 9. If awarded, when is construction anticipated to begin? Start Date: Completion Date: (Keep in mind that the typical window for in -water work is July 15- July 15, 2021 October 1, 2021 October 1 10. Provide any additional information regarding the efficiency and cost-effectiveness of the project in the s ace below: The City has proposed a 50% match to grant funds on this project. We have done this to show our commitment to replacing this crossing and hope that this will increase our chances of receiving these grant funds. The City recently hired a contractor that completed the replacement of an 84 -inch culvert in a 60 -hour period over a weekend with a complete road closure. This caused the least disruption to traffic possible, and also limited environmental risk by limiting the amount of time that bypass of flows was necessary. This short construction schedule also gave us the best pricing possible. We would like to implement a similar schedule on this crossing, but that depends somewhat on the low bidder's schedule. 11. Provide any additional information as to why this project should be funded by a public infrastructure grant in the space below: As previously mentioned in this application, this culvert is currently undersized, and is beginning to show signs of failure. Replacing this crossing with a properly sized culvert will reduce the chances of catastrophic failure. This will also encourage the movement of aquatic and terrestrial life between the two most natural reaches of this urban impaired stream. It is also a part of the City's efforts to improve stream conditions through the implementation of the Watershed Based Management Plan for Arctic Brook prepared by FB Environmental Associates for the City. Recent implementation efforts in accordance with the Watershed Management Plan have been numerous. The City constructed two underdrained soil filters in 2019 on Whisper Drive, just upstream of the culvert. We also were able to implement stormwater treatment on Broadway as part of a redevelopment project. The City hired a geomorphologist to performed an in-depth geomorphic assessment on the upstream reach of this stream. Plans have been drafted and the City plans to construct these geomorphic habitat improvements in 2021. 11 The implementation of Watershed Management Plan for Arctic Brook also includes the recommendation to replace the Culvert at Grandview Avenue to reduce scour and increase habitat connectivity. See quote from Arctic Brook Watershed Management Plan: Grandview Avenue Crossing: The crossing at Grandview Avenue has a perched outlet with a large tailwater scour pool. High traffic volume on Grandview Avenue and a steep embankment makes this culvert at risk from erosion and road runoff. This culvert poses a significant barrier for the continuity of Arctic Brook to fish and other aquatic species from downstream to upstream. This site is an ideal candidate for a culvert replacement that has a natural stream bottom and is adequately sized for flow conditions (large tailwater scour pool indicates that it is currently undersized for flow conditions). We believe the proposed design meets the criteria for the replacement described in the Watershed Management Plan when considering the constraints of other infrastructure, costs, and available resources. 12 State of Maine Department of Environmental Protection COST PROPOSAL FORM RFP# 202008127 2020 Grants for Stream Crossing Public Infrastructure Improvements Bidder's Organization Name: City of Bangor, Maine Instructions: The cost proposal must include: the total amount of funds requested under this RFP, the total cost of the project to completion, and the amount of local matching funds dedicated to the prof ect. The cost proposal may not exceed $125,000. Local matching funds must be included. The Department cannot fund 100% of any project. 1. Total Amount of Funds being Requested $68,358.33 2. Total Matching Funds Committed to Project r$68,358.33 3. Total Cost to Complete Proposed Project $136,716.66 (total of items 1&2 above) watering, stream bypass, cofferdams, 4. All Sources of Matching Funds City of Bangor Stormwater Utility Funds (list): measures Budget Items 5. Total Engineering Costs Fs8,500 6. Permitting and Bidding 1 $1,250 7. Erosion & sediment controls (including de- watering, stream bypass, cofferdams, $17,175 temporary and permanent stabilization measures 8. All other items L$109,791.66 13 State of Maine Department of Environmental Protection DEBARMENT, PERFORMANCE and NON -COLLUSION CERTIFICATION RFP# 202008127 2020 Grants for Stream Crossing Public Infrastructure Improvements Bidder's Organization City • •• Maine Name: By signing this document, / certify to the best of my knowledge and belief that the aforementioned organization, its principals and any subcontractors named in this proposal: a. Are not presently debarred, suspended, proposed for debarment, and declared ineligible or voluntarily excluded from bidding or working on contracts issued by any governmental agency. b. Have not within three years of submitting the proposal for this contract been convicted of or had a civil judgment rendered against them for i. Fraud or a criminal offense in connection with obtaining, attempting to obtain, or performing a federal, state or local government transaction or contract. ii. Violating Federal or State antitrust statutes or committing embezzlement, theft, forgery, bribery, falsification or destruction of records, making false statements, or receiving stolen property; iii. Are not presently indicted for or otherwise criminally or civilly charged by a governmental entity (Federal, State or Local) with commission of any of the offenses enumerated in paragraph (b) of this certification; and iv. Have not within a three (3) year period preceding this proposal had one or more federal, state or local government transactions terminated for cause or default. c. Have not entered into a prior understanding, agreement, or connection with any corporation, firm, or person submitting a response for the same materials, supplies, equipment, or services and this proposal is in all respects fair and without collusion or fraud. The above-mentioned entities understand and agree that collusive bidding is a violation of state and federal law and can result in fines, prison sentences, and civil damage awards. Failure to provide this certification may result in the disqualification of the Bidder's proposal, at the discretion of the Department. Name (Print): Title: Cathy Conlow City Manager Authorized Signature: Date: CA Figure.1 View inside culvert.from Upstream .Side. Note deterioration near water line inforeground and deformed pipe crown in center of length of pipe, Photo date .1.1104120.19, Figure 2 Detail view of pipe.failure near outlet. Photo date .1.1104120.19 Grandview Avenue Crossing Arctic Brook in Bangor, Maine Leg ein d 1 1 i j r I I I I I r r n I I 1 p I �wow> D.I7L'.�6EL::V D.ITL'NLLLV ,.;_coy I'M 1,M i. ONT-TOn — v�norm �vPOTECT MD —D nsmnaxe raamry IMIERS. it ug,uwffn. DOE —ER sxnLL BE ass. " c 1 El 91 " IEa-- —1 SUR,fttR. Fln� UP TD wAT aX 10� :'c'p'E� w.�"c �re "A—Tg.o � � gM.SAB B., 1.E. Ems aUlm)-u,Esr Ennox. TO P 11. µ IT . " S --.S (-TM I. � TME."-,EP"R—r W EH�"a,a,"w _ �o=..TrU MW.0 rm`ii+ °a«°i. `c`�o:;n�sr ia,eisom� ��Fina°E.,poF'm"x� .mar. IN nE C1 ?V `d 03 X V 71" (71" MIN. TO 76.2" MAX.) 29.749 103" (97.8" MIN, TO 103" MAX.) 7f NOMINAL 103" X 71" (90" ROUND EQUIVALENT) AREA= 42.4 SF NOTES: 1. ALL DIMENSIONS ARE TO THE INSIDE CORRUGATION CREST UNLESS NOTED OTHERWISE. 2. ALL DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 3. RISE AND SPAN DIMENSIONS ACCOUNT FOR SPECIFICATION TOLERANCES FROM NOMINAL DIMENSIONS. (AASHTO M 36 STEEL, M 196 ALUMINUM, ASTM A 760 STEEL, B 745 ALUMINUM). CMP 090XI PA C%ONTECH SHAPE DRAWING ENGIN11 S4WTION5 LLCCONTECK 3" x 1"" OR 5" x I" CMP PIPE ARCH www.ContechES.com 90" EQ DIA 103"x71" 9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069 800-338-1122 513-645-7000 513-645-7993 FAX DATE DRAWN: 6/16/16 REV #: REV DATE: SCALE: N.T.S. DRAWING TYPE: 10/25/2019 StreamStats Basin Characteristics Parameter Code Parameter Description Value Unit DRNAREA Area that drains to a point on a stream 0.5 square miles STORNWI Percentage of storage (combined water bodies and wetlands) 4.08 percent from the National Wetlands Inventory Bankfull Statistics Parameters[centrai and coastal Banktull 2004 50421 Parameter Code Parameter Name Value Units https://streamstats.usgs.gov/ss/ Min Limit Max Limit 1/3 10/25/2019 StreamStats Parameter Code Parameter Name Value Units Min Limit Max Limit DRNAREA Drainage Area 0.5 square miles 2.92 298 Bankfull Statistics Disclaimers[Central and Coastal Bankfull 2004 50421 Bankfull Statistics Flow Report[Central and Coastal Bankfull 2004 5042] Statistic Value Unit Bankfull Streamflow 2.51 ft^3/s Bankfull Width 5.35 ft Bankfull Depth 0.469 ft Bankfull Area 2.51 ft^2 Bankfull Statistics Citations Dudley, R.W.,2004, Hydraulic -Geometry Relations for Rivers in Coastal and Central Maine: U.S. Geological Survey Scientific Investigations Report 2004-5042, 30 p (http://pubs.usgs.gov/sir/2004/5042/pdf/sir2004-5042.pdf) Peak -Flow Statistics Para meters[Statewide Peak Flow DA LT 12sgmi 2015 5049] Parameter Prediction Interval -Upper, SEp: Standard Error of Prediction, SE: Min Max Code Parameter Name Value Units Limit Limit DRNAREA Drainage Area 0.5 square 0.31 12 2 Year Peak Flood 31.9 miles 34 5 Year Peak Flood STORNWI Percentage of Storage from 4.08 percent 0 22.2 NWI Peak -Flow Statistics Flow Report[Statewide Peak Flow DA LT 12sgmi 2015 50491 PI[: Prediction Interval -Lower, Plu: Prediction Interval -Upper, SEp: Standard Error of Prediction, SE: Standard Error (other -- see report) Statistic Value Unit SEp 1.01 Year Peak Flood 9.74 ft^3/s 38 2 Year Peak Flood 31.9 ft^3/s 34 5 Year Peak Flood 50.4 ft^3/s 35 https://streamstats.usgs.gov/ss/ 2/3 10/25/2019 StreamStats Statistic Value Unit SEp 10 Year Peak Flood 63.9 ft^3/s 37 25 Year Peak Flood 83.3 ft^3/s 39 50 Year Peak Flood 97.9 ft^3/s 41 100 Year Peak Flood 114 ft^3/s 42 250 Year Peak Flood 131 ft^3/s 44 500 Year Peak Flood 155 ft^3/s 47 Peak -Flow Statistics Citations Lombard, P.J., and Hodgkins, G.A.,2015, Peak flow regression equations for small, ungaged streams in Maine— Comparing map -based to field-based variables: U.S. Geological Survey Scientific Investigations Report 2015-5049, 12 p. (http://dx.doi.org/10.3133/sir20155049) USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Application Version: 4.3.8 https://streamstats.usgs.gov/ss/ 3/3 GRANDVIEW AVENUE - ARCTIC BROOK CULVERT PRELIMINARY PROBABLE CONSTRUCTION COST ESTIMATE SUMMER 2021 ITEM NO. DESCRIPTION QUANT. UNIT PRICE AMOUNT 203.200 COMMON EXCAVATION 700 CY $10.00 $7,000.00 203.260 GRAVEL BORROW 465 CY $20.00 $9,300.00 304.08 AGGREGATE BASE COURSE (SCREENED) 25 CY $40.00 $1,000.00 304.10 AGGREGATE SUBBASE COURSE 70 CY $30.00 $2,100.00 403.200 HOT MIX ASPHALT (5" THICK) 50 TON $200.00 $10,000.00 CMP PIPE ARCH 103" X 71" POLYMER COATED 80 LF $350.00 $28,000.00 606 TIMBER GUARDRAIL 88 LF $50.00 $4,375.00 615.07 LOAM 18 CY $55.00 $990.00 618.13 SEEDING METHOD NO. 1 2 UNIT $65.00 $130.00 619.12 MULCH 2 UNIT $50.00 $100.00 627.71 4" W/Y PAVE. MARK LINE (PLAN QUANTITY) 150 LF $0.75 $112.50 652.38 FLAGGER 300 MH $32.00 $9,600.00 652.39 WORK ZONE TRAFFIC CONTROL 1.0 LS $7,500.00 $7,500.00 656.75 TEMP SOIL EROSION & WATER POLLUTION CONTROL 1.0 LS $3,500.00 $3,500.00 MAINTENANCE OF STREAM FLOWS 1.0 LS $8,000.00 $8,000.00 6" RIP RAP 45.0 CY $60.00 $2,700.00 703.06c MDOT TYPE D GRAVEL 30.0 CY $45.00 $1,350.00 GEO TEXTILE FABRIC 135.0 SY $3.00 $405.00 CULVERT AND SCOUR POOL RESTORATION GRAVEL 40.0 CY $100.00 $4,000.00 RELOCATE 16" WATER MAIN 3 FT DEEPER AT CROSSING 1.0 LS $15,000.00 $15,000.00 SUBTOTAL $115,162.50 659.10 MOBILIZATION 5% 1.0 LS $5,758.13 $5,758.13 SUBTOTAL $120,920.63 Permitting $500.00 Bidding/Advertising $750.00 5 PERCENT CONTINGENCY $6,046.03 TOTAL $128,216.66 PRELIMINARY ENGINEERING $6,000.00 CONSTRUCTION ENGINEERING $2,500,00 TOTAL $136,716.66 STREAM CROSSING SURVEY Date(./dd/yy) Time 0 5 Sequence 4 Site ID Dbserver (s) Qh 'A �r�N WKVY(A 0 V 9,0 cid Organization U Stream�Br �01(-. TributarytojQAd6)Lt1K4A Town Road &-rc"Wtw Avc, Type X Paved 1--) Unpaved E.] Railroad [...]Trail E-.1 Driveway L ilAk" IL IC111" East [ _qj4j $ 110 M North GPS Coordinates L�L — Location DeLorme Atlas Map # — Grid Reference Description Photo IDs Inlet Outlet Other Upstream Downstream Basic Structure Type [L Bridge 9 Culvert El Multiple Culverts # 0 Ford Material k1 Metal 0 Concrete EI Plastic IJ Wood , Stone EI Other Specific Structure Type (see diagrams): 1 ❑ 2 1".] 3 [_1 4 L.'.1 5 Channel Width X Bankfull Width (Preferred) 11 . I Wetted Width PiA Inlet Condition o�� LJ At Stream Grade i4 Inlet Drop 0 Perched D Deformed D Beaver Fencing [D Blocked 25% 50% 75% 100% Sand A Clay 0 Organic Inlet Water Depth A) Inlet Span B) Inlet Clearance Q Inlet Wetted Width Pick Outlet Condition One 0 At Stream Grade X Perched I-] Cascade I...] Perched Above Cascade Outlet Water Depth I - I __ Outlet Drop CIS Flow El Low Cl High LA Moderate [. j I NONE El Removed Structure 06 1.] 7 9 Measured El Estimated Upstream Substrate (.'.'.']Bedrock [,'-] Boulder E::1 Cobble f.]Gravel 0 Unknown Tailwater Scour Pool 5X_ Large El Small [.I None I Downstream Substrate Tailwater Pool Depth 9 < 3 ft / I m F I > 3 ft / I in F.] Bedrock I I Boulder El Cobble L] Gravel Tailwater Armoring I Extensive I Not Extensive 11A None X Sand X Clay Organic Unknown A) Outlet Span n B) Outlet Clearance C) Outlet Wetted Width Q3 'D) Crossing Structure Length �ShpjLrie#Cylvert 'Ll Yes No _ Crossing Substrate None El Comparable E.3 Contrasting E.1 Unknown 0* Continuous Ll Yes 0 No El Unknown Internal Structures 1% None Baffles / Weirs E] Bridge Piers Other I Corrugations XYes LINo Water Depth Matches Stream 91 Yes/Comparable E] No Water Velocity Matches Stream E] Yes/Comparable R No Slope Compared to Channel Slope X Higher 0 Lower Same ^wurAlignment X Flow -Aligned ['] Skewed Significant Sediment Source Upstream X1 Road / Ditches _­'] Embankment Stream Banks Downstream El Road / Ditches I Embankment .."I Stream Banks bk None Wildlife Barriers X None [DHigh Traffic Volume 0 Steep Embankments I I Retaining Walls El Jersey Barriers L'I Fencing Comments: Fill Height 41 T Units Condition t& Good 0 Poor I LR Feet Tidal Site M Yes & No El Unsure I El Meters Maine Stream Crossing Survey Field Form 51212012 X X X X X MAINE 04468 X X X X X X X OLD TOWN X X X X X X X X X e c n X e Asphalt curbing f kGas pipes City of Bangor X n i l CONSULTING ENGINEERS n i X a h X C X 687 STILLWATER AVENUE X CARPENTER ASSOCIATES X X ' X 7 0 X . 5 Paved 1 X 2 X X X X t e DESCRIPTION X PVC Drain 4" e r t S X g n X i r BY p X S Door sill elevation 42.18' X X X XXX X X d e X REVISIONS v a P X X X Bangor Development Associates Volume 3530, Page 239 Gas pipes Door sill elevation 45.84' Door sill elevation 47.56' B r i c k s u r f a Generator Pad c e X t n Door sill elevation 48.84' e Paved X X m X e s X a e X r e X w Versant Power PVC Drain 4" e s 20' wide easement e X ' d Volume 3461, Page 101 i 5 X 8 w . ' 4 5 X 2 Storm water drainage 1 Access rights to 2 X G easement appurtenant to Bangor Public Library r 2 a Door sill elevation 45.85' 7 n X subject premises i 5 t e . 1 c u 1 Volume 13626, Page 348 r ' b i n g ( t y p ) Generator Pad Board of Trustees of the B Vent Pipe 6" r i c Bangor Public Library k H s a u r r l Volume 957, Page 218 o f a w c e S t r e e t Versant Power easement Volume 6462, Page 140 FOR REVIEW 12-03-2020 IN CITY COUNCIL DECEMBER 14,2020 CO 21-042 Motion made and seconded for Passage of Consent Agenda Vote: 9—0 Councilors Voting Yes: Davitt,Dubay,Fournier,Hawes,Nichols,Okafor, Schaefer, Sprague, Tremble Councilors Voting No: None Passed CItIfftERV