DRAFT Traffic Operations & Safety Evaluation Technical Memorandum

Transcription

1 DRAFT Taffic Opeations & Safety Evaluation Technical Memoandum Zavoal Popety Mine and Reclamation Poject August

2 TABLE OF CONTENTS EXECUTIVE SUMMARY 1.0 PROJECT BACKGROUND Altenative 1: Applicant s Pefeed Altenative 5 to 10-Yea Opeation Zavoal Site Activities Scandia Mine Activities Altenative 2: No-Build Altenative Altenative 3: Reduced Time Peiod - Up to 5-Yea Opeation TRAFFIC STUDY GOALS METHODOLOGY Data Collection Altenative Evaluation fo Taffic Opeations and Safety Refeence Documents FINDINGS Data Collection Taffic Analysis and Opeations Safety Evaluation IMPACT ANALYSIS Taffic Analysis and Evaluation Existing Conditions Altenative 1 Tille spefeed Altenative Altenative 2 No-Build Altenative (existing land uses) Altenative 3 Reduced Time Fame Safety Evaluation POTENTIAL MITIGATION LIST OF FIGURES Figue 1. Poject Aea Roadway Netwok... 4 Figue 2. Cuent Hauling Routes... 8 Figue 3. Aveage Daily Taffic Volumes Figue 4. Poposed Add-Rock Haul Route Figue 5. Base Taffic Volumes Altenative 1 (5 to 10 Yeas) Figue 6. Base Taffic Volumes Altenative 2 (No-Build) i

3 Figue 7. Base Taffic Volumes Altenative 3 (5 Yeas o Less) Figue 8. Cash Data Figue 9. Cash Data Figue 10. Cash Data LIST OF TABLES Table 1. Add-Rock Haul Taffic fo Each Altenative APPENDICES Appendix A Signing at Intesections Appendix B Mn/DOT Diveway Review Appendix C City of Scandia Tail Plan ii

4 \ Executive Summay The Tille Copoation Inc. (Tille) poposes to opeate a sand and gavel mine on the site of a domant uneclaimed gavel mine in the City of Scandia Washington County Minnesota. The 114-ace site (Zavoal Site o Site) is located along St. Coix Tail Noth (State Tunk Highway [TH] 95) nea its intesection with TH 97 (Figue 1). Tille poposes to mine and eclaim 64 aces of the 114-ace Site pedominately on potions of the Site that wee peviously distubed by mining. An 8-ace aea that has not been peviously mined is included in the poposed mining aea. Tille is also poposing to estoe appoximately 4 aces of the peviously mined aea located within the St. Coix National Scenic Riveway and USA Scenic Easement Aea. This technical memoandum pesents the evaluations completed fo Task 21 Taffic. It identifies potential envionmental impacts elated to the Poject altenatives and identifies measues that could avoid minimize o mitigate fo these potential impacts. This wok was conducted as pat of the Envionmental Impact Statement (EIS) pocess to be completed unde Minn. R The taffic evaluation task includes analysis of existing and altenative taffic opeations impacts to the key oadway netwok seving the existing Scandia Mine and the Zavoal Site. The study aea is bounded by Manning Tail 228th Steet TH 95 and TH 97. The oadway links evaluated in the study aea included TH 97 TH 95 Manning Avenue Lofton Avenue and Olinda Tail. The Poject scope incopoates the poposed Zavoal Site opeation and includes the following EIS altenatives: Altenative 1 Tille s Pefeed Altenative. Mining and eclamation would occu ove a 5 to 10-yea peiod. Altenative 2 No-Build Altenative. Altenative 3 Reduced Timefame. Mining and eclamation would occu ove an up to 5-yea peiod. The following goals ae included unde Task 21 Taffic: Data Collection obtained fom Minnesota Depatment of Tanspotation (Mn/DOT) City of Scandia Washington County and Tille to povide input into the altenative analysis. Taffic Analysis and Evaluation using Mn/DOT data and the Tille mining and eclamation plans fo the altenatives evaluate the impacts of tucking opeations to TH 97 and the study oadway system. Safety Evaluation using Mn/DOT and Depatment of Public Safety (DPS) cash data evaluate the cash epots and make ecommendations as needed. This task includes a geneal oadway opeations evaluation. Mitigation Measues the taffic and safety analysis identifies ecommendations to be included in the EIS. ES-1

5 The following ae key findings fom the taffic analysis and opeations task effots: The existing oadway netwok is sufficient to handle the daily taffic volumes in the aea. TH 97 and TH 95 ae state highways designed to accommodate egional taffic. The peak hou tuck volumes ae also within the capacity of the oadways. A eduction in daily tuck taffic volume was calculated unde the poposed build altenatives (Altenatives1 and 3). The evaluation included the highest volume that could be hauled to the Scandia Mine unde peak conditions. The following is a list of potential mitigation measues that may be included as pat of the EIS pocess: Constuct the new diveway access diectly acoss fom TH 97. This is a equied item by Mn/DOT fo safe access. Constuct a nothbound ight tun lane on TH 95 In ode to ensue that additional tuck taffic would not esult fom hauling fom the Zavoal Site at peak demand concuently with othe sites the numbe of tucks hauling add-ock to the Scandia Mine could be limited to the pojected maximum level of 280 tucks o 560 tips pe day o below and documentation could be equied. Relocate the small tail unning along TH 95 and e-establish the tail connection. The City of Scandia Tail Plan should be coodinated with Mn/DOT to povide a safe bicycle oute and avoid conflicts with vehicle taffic on TH 97 (at the 55 mph speed limit). Conside Tille s contibution to tail constuction and econnection as mitigation. Tuck waning signs that ae compliant with the Minnesota Manual on Unifom Taffic Contol Devices (MMUTCD) ae ecommended on TH 95 to advise dives of tucks cossing TH 97 in and out of the poposed Zavoal Site. The installation of waning flashes is anothe option but should be discussed with Mn/DOT to evaluate the safety impacts. ES-2

6 \ 1.0 Poject Backgound AECOM is completing tasks to analyze the potential fo envionmental impacts and to identify mitigation measues fo potential impacts fom the identified altenatives elated to the Zavoal Popety Mining and Reclamation Poject. This is pat of the EIS pocess to be completed unde Minn. R This technical memoandum pesents the analysis and evaluation completed fo Task 21 Taffic. The altenatives to be addessed in the EIS ae summaized below. This Taffic Opeations and Safety Evaluation Technical Memoandum addesses the thee altenatives (focusing on the build altenatives ) Altenative 1: Applicant s Pefeed Altenative 5 to 10-Yea Opeation Zavoal Site Activities The mining and eclamation would be conducted in phases with a Poject duation of up to 10 yeas unde this altenative. Poposed site pepaation mining and eclamation phasing ae included in Appendix B. In geneal eclamation of the Site would poceed in incements as aeas of mining ae completed. The eclamation plan poposes that peimete aeas be sloped and inteio aeas backfilled and gaded to eclamation gades. Topsoil o othe oganic mateial would be applied to these aeas and vegetation established to educe eosion. The Envionmental Assessment Woksheet (EAW) pepaed ealie fo the Poject poposed that the peviously mined aea within the St. Coix Riveway be estoed duing the final phase of mining opeations at the Site. Tille s lette to the City (Apil ) poposed evising the eclamation and phasing plan to include eclamation of the aea within the St. Coix Riveway and scenic easement aeas duing the fist yeas of opeation. This technical memoandum theefoe evaluates the Poject scenaio that includes eclamation of the St. Coix Riveway and scenic easement aeas duing the fist 5 yeas of mining opeations on the Site Scandia Mine Activities Raw aggegate mateial mined at the Site would pimaily be tanspoted to the Scandia Mine. The Scandia Mine cuently uses o pocesses aggegate mateial fom the Scandia Mine and mateials that ae tanspoted to the Scandia Mine fom vaious locations most ecently Chisago Minnesota and Polk counties Wisconsin. Tille has indicated that the mateials tanspoted fom the Zavoal Site would eplace mateials hauled to the Scandia Mine fom Chisago County and Polk County. The following activities would occu at the Scandia Mine: Aggegate mateial bought in fom the Zavoal Site (add-ock) would be blended with aggegate mateial mined at the Scandia Mine fo use in the poduction of hot mix asphalt. A potion of the aggegate mateial tanspoted to the Scandia Mine may be pocessed as needed though a seies of cushes sceens conveyos wash decks and classifies to poduce commecial gade constuction aggegates. 1

7 The finished constuction aggegate poducts would be stockpiled at the Scandia Mine until they ae hauled off-site by tucks to vaious constuction sites. The Scandia Mine opeates unde a Conditional Use Pemit (CUP) and an Annual Opeating Pemit (AOP) appoved by the City of Scandia. The pocessing activities listed above ae included in the activities authoized by these pemits. No changes in opeations at the Scandia Mine ae expected Altenative 2: No-Build Altenative The No-Build altenative is based on the existing use continuing at the Site. It would emain as an uneclaimed open space. Allowable futue uses of the Zavoal Site ae agicultual and ual esidential Altenative 3: Reduced Time Peiod - Up to 5-Yea Opeation This altenative focuses on the impacts of the poposed activities if the oveall time fame fo mining at the Zavoal Site is up to 5 yeas athe than up to 10 yeas as poposed in the Pefeed Altenative. This would esult in moe mining occuing fo moe weeks each yea and moe mateial being mined pe yea. Tille is poposing the following activities at the Zavoal Site with eithe of the build altenatives (Altenatives 1 and 3): Cleaing and gubbing the Site of vegetation as necessay. Removing ovebuden fom aeas to be mined and stockpiling the mateial on the Site fo potential futue use in eclamation. Excavating aw aggegate mateials. Using wate fom the existing well fo dust suppession. Stoing fuel and elated mateials such as oil anti-feeze gease and hydaulic fluid on the Site. Reclaiming the Site though gading placing topsoil o othe oganic mateial and seeding. Mining opeations would typically be conducted on a seasonal basis fom Apil though mid- Novembe. Mined aggegate mateial (pit-un and/o add-ock) would pimaily be hauled to Tille s Scandia Mine nea Manning Avenue and 225th Steet fo use in mateial poduced at that Site. 2.0 Taffic Study Goals The taffic opeations and safety evaluation eviews the existing conditions in the study aea and detemines the impacts to the oadway system of the thee EIS altenatives fo the Zavoal Site. The tasks and goals ae to analyze the following conditions and pepae ecommendations/potential 2

8 mitigation that may be needed fo each altenative. The following tasks and goals ae included in the technical evaluation. Data Collection obtained fom Mn/DOT City of Scandia Washington County and Tille to povide input into the altenative analysis. Taffic Analysis and Evaluation using Mn/DOT data and the Tille mining and eclamation plans fo the altenatives evaluate the impacts of tucking opeations to TH 97 and the study oadway system. Safety Evaluation using Mn/DOT and Depatment of Public Safety (DPS) cash data evaluate the cash epots and make ecommendations as needed. This task includes a geneal oadway opeations evaluation. Mitigation Measues the taffic and safety analysis identifies ecommendations to be included in the EIS. The Poject location map with the main oadway netwok and existing Scandia Mine and Zavoal Site is shown in Figue Methodology 3.1. Data Collection The taffic opeations and evaluation included meetings and coodination with the City of Scandia and Tille to obtain and analyze data and pepae a technical pesentation to the Poject Advisoy Committee (PAC) on July This pesentation included an initial evaluation of the taffic impacts and povided an oppotunity fo PAC and citizen questions and input. Since that time thee have been subsequent meetings and updates to the altenative plans by Tille. These updates ae included in this memoandum. The following data collection was completed: Conducted site eviews of the oadway netwok in the study aea. Obtained updated mining plan documentation fom Tille dated Apil fo Altenatives 1 and 3. This did not change the planned daily taffic o outing to the Site and included. o Planned tuck volumes fom Tille fo Altenatives 1 and 3. o Planned employment o sevice data fo the Site (impact of additional vehicles). Obtained the most cuent 3 yeas of cash data fom Mn/DOT ( ). Standad pactice is to eview the most ecent 3 yeas of data. The initial evaluation included data fom 2006 though 2008; updating the data though 2010 (elease in June 2011) by Mn/DOT allowed AECOM to eview the entie time fame to identify any changed conditions. 3

9 250Th Fouth Lake 25 Thid Lake Th Pickett 213Th Halfbeed Lake Maybey ³ Big Maine Lake 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Miles Copyight 2010 By: AECOM 195Th Old M ai Long Lake ne ive Co ix R w vie k Pa nt Ne wg ate Maxwell Maxwill White Rock Lake Lay ton 50 Hay Lake a 20Th 18Th 199Th 197Th 192Nd m ag Owell Keystone o 199Th 0.5 Quinnell Jeffey Jody Nd Fish Lake 0 25Th m u st O 202N La ka Wisconsin 30Th 209Th Qu ali ty h 5T d 202Nd 190Th Pe Ol ind a Oldfield 213Th Th 40Th Polk Qu a y Jul 204Th 95 Oxb o no Ju 206Th Ke ew ah tin Je we l 45Th Zavoal Site 220Th 215Th 214Th Kib y 210Th d an Ol Paish 1 213Th City of Scandia Ozak Washington h 218T hi ll Novak 218Th Killian 217Th 216Th Meadowbook Keathe O ak h 7T 26 Cloutie Sain t Kik Kik Jud e Goose Lake h 219T Foest Lake Peabody Elwell Lake 223Rd Pila 15A 50Th ld nfie Pe Nolan Minnesota Canbey Lake Quentin No va k 228Th p Jule Jewel 230Th O en Lofton Jeffey Scandia Mine Site 55Th ki ns Nielsen Lake 3 Penose Julianne 230Th 228 Th 2 Bone Lake 237Th 236Th Oldfield Ke sle Jamaica Janeo 230Th 232Nd Clea Lake Meadowbook Twin Lake ie lan Me Ke lle Sea Lake 236Th Pais Je ns e 238Th 235Th 60Th 240Th n 240Th Ridge Fist Lake Second Lake Pomoy 239Th Moody Lake d 243R Pomoy Manning July 85 Bich Lake 280Th Mogan School Lake 28 0T h 245Th Quint ille 86 Quinlan M 86 Panola O ld fie ld Chisago 255Th Oakman 25 3R d Jeffey 250Th Ice Lake 192Nd William OBien State Pak 10Th Obien PROJECT AREA ROADWAY NETWORK ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 1

10 Obtained taffic counts (link volumes) fom the following souces: o Aveage Annual Daily Taffic (AADT) data fom Mn/DOT. o Peak hou volumes (fom the Automated Taffic Recode on TH 97). o Existing tuck counts fom Mn/DOT Washington County and Tille. Attended a meeting with Mn/DOT Meto Distict City of Scandia and Tille epesentatives on May to discuss the status of the diveway pemit. Mn/DOT listed the following equiements in thei lette (included in Appendix B): o A nothbound TH 95 ight tun lane into the Zavoal Site would be equied. o A westbound acceleation lane would not be feasible to constuct exiting the diveway. o The diveway must be aligned with TH 97. This would have a minimal change in sight distance. o The tail on the southeast side of TH 95 is owned by Mn/DOT (unde eview by Mn/DOT Meto Distict staff) and would need to be elocated fo the tun lane. Collected oadway data including lane configuations speed limits taffic contol devices bicycle and pedestian facilities and othe featues. The City of Scandia has ecently published thei citywide tail plan. The plan is included in Appendix C Altenative Evaluation fo Taffic Opeations and Safety The two build altenatives include the same study aea haul facilities and oadway netwok. The main diffeence is the duation of the haul events (total yeas and numbe of weeks fo the addock haul). The impacts of the build altenatives on taffic opeations and safety wee evaluated on the following oadways: TH 97 fom Manning to TH 95 TH 95 fom 220th Steet to 209th Steet Manning & Lofton fom TH 97 to the Scandia Mine entance Intesections within the study limits 3.3. Refeence Documents The following standads and efeence documents wee used fo the Taffic Opeations and Safety Evaluation: Mn/DOT Road Design Manual Minnesota Manual on Unifom Taffic Contol Devices (MMUTCD) Mn/DOT AADT Maps Mn/DOT Cash Data GIS mapping fo Scandia City of Scandia Tail Plan 5

11 Tille Mining and Reclamation Plans fo Zavoal Site 4.0 Findings 4.1. Data Collection The following ae key data collection updates: Cash data was updated fo the 2008 though 2010 yeas which ae the most ecent data available fom Mn/DOT. Tille povided data on the existing and planned tuck haul volumes fo all altenatives. AECOM and the City of Scandia eviewed this data and veified the infomation pesented in this epot coincides with the haul volume fom Tille s mining plan dated Apil Taffic Analysis and Opeations The following ae key findings fom the taffic analysis and opeations task effots: The existing oadway netwok is sufficient to handle the daily taffic volumes in the aea. TH 97 and TH 95 ae state highways designed to accommodate egional taffic. The peak hou tuck volumes ae also within the capacity of the oadways. A eduction in daily tuck taffic volume was calculated unde the poposed build altenatives. The evaluation included the highest volume that could be hauled unde peak conditions Safety Evaluation The following ae key findings fom the safety evaluation task effots: The cash data fo the 2008 though 2010 yeas was eviewed mapped and evaluated. Thee wee no cashes ecoded duing this time that involved semi-tailes o haul tucks. The TH 97 intesection with Lofton had the highest numbe of intesection cashes in the study aea but is not consideed a hazadous intesection. It would be advised to monito this intesection fo potential inceases in cashes duing mining opeations. The ight angle cashes ae most likely the esult of dives on Lofton misjudging the speed of vehicles on TH 97 befoe tuning. In 2006 thee was a fatal cash on TH 95 just noth of the intesection of TH 97 and TH 95 whee a pedestian was hit by a lage tuck. The cash was investigated by the State Patol and it was detemined that the pedestian made a judgment eo and did not get out of the path of the tuck. The tuck dive was not cited in the cash. 6

12 5.0 Impact Analysis 5.1. Taffic Analysis and Evaluation The taffic evaluation task includes analysis of existing and altenative taffic opeations impacts to the key oadway netwok seving the existing Scandia Mine and Zavoal Site. The study aea is bounded by Manning Tail 228th Steet TH 95 and TH 97. The oadway links to be evaluated in the study aea include TH 97 TH 95 Manning Avenue Lofton Avenue and Olinda Tail. The poject scope incopoates the poposed Zavoal Site opeation and includes the following EIS altenatives: Altenative 1 Pefeed Altenative. Aggegate fom the Zavoal Site would be tanspoted to the Scandia Mine (mining and eclamation peiod of 5 to 10 yeas). Altenative 2 No-Build Altenative Altenative 3 Mining and Reclamation. The mining and eclamation peiod of up to 5 yeas. The taffic opeations and safety evaluation eviewed the existing conditions in the study aea and detemined the impacts to the oadway system of the thee EIS altenatives fo the Zavoal Site. The tasks and goals ae to analyze the following conditions and pepae ecommendations/potential mitigation that may be needed fo each altenative. The following tasks and goals ae included in the technical evaluation. Data Collection obtained fom Mn/DOT City of Scandia Washington County and Tille to povide input into the altenative analysis. Taffic Analysis and Evaluation using Mn/DOT data and the Tille mining and eclamation plans fo the altenatives evaluate the impacts of tucking opeations to TH 97 and the study oadway system. Safety Evaluation using Mn/DOT and Depatment of Public Safety (DPS) cash data evaluate the cash epots and make ecommendations as needed. This task includes a geneal oadway opeations evaluation. The Poject aea with the main oadway netwok and existing Scandia Mine and poposed Zavoal Site is shown in Figue Existing Conditions Unde the existing conditions tucks haul to the Scandia Mine fom vaious locations in Minnesota and Westen Wisconsin. The cuent haul outes (Figue 2) ae concentated on both TH 95 (noth) County Road 1 (fom the south) and TH 97. The Wisconsin tucks typically coss the ive at TH 243 fom Polk County which is the closest ive cossing. Tuck also use TH 61 and Intestate (I)-35E as outes fom the west. 7

13 Chisago Higgins Lake ") 62 Anoka Howad Lake ") 23 ") 22 ") 21 35E ") 35E 140 Mud Lake 97 ") tu 8 Clea Lake ") 30 ") 84 ") ") Ashton Lake Heims Lake Lakeside Pak tu 61 ") 36 ") 2 ") 18 ") 2 ") 4A ") 83 ") 34 Comfot Lake ") 23 Little Comfot Lake Minnesota Foest Lake Washington Hoseshoe Lake ") 80 Sam Lake White Stone Lake ") Ellen Lake Emily Lake Little Geen Lake School Lake Bich Lake Twin Lake Canbey Lake Halfbeed Lake 50 ")15 White Rock Lake South ") 90 Lindstom Lake Bone Lake Nielsen Lake Big Maine Lake Koon Lake ") 83 Scandia Mine Site City of Scandia Fish Lake Big Maine Pak Reseve ") 55 Spide Lake 97 Hay Lake Long Lake ") 4 ") 4 ") 57 ") 80 ") 77 ")15A ") 15 ") 24 ") 1 ") 85 Peteson Lake Ogen Lake Bloom Lake Linn Lake Peason Lake ") 26 ") 21 Coleen Lake Tulson Lake ") 25 Swamp Lake ") 3 ") 82 ") 33 ") 52 ") 86 ") 86 Duck Lake 95 William OBien State Pak Johnson Lake Hawkinson Lake Zavoal Site 243 Legend TH 243 Rive Cossing 4-H Pak Polk Wisconsin Haul Routes fom West and South St. Coix I- State Pak Haul Routes fom Wisconsin Chisago Co. & TH 95 Southbound ³ Miles 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Copyight 2010 By: AECOM CURRENT HAULING ROUTES TO SCANDIA MINE SITE ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: Appoved: Scale: PROJECT FIGURE KLM 06/01/2011 LK 06/01/2011 1" = 2 miles

14 AADT volumes (Figue 3) have emained faily constant in the past seveal yeas on the main oadways. TH 95 and TH 97 ae two-lane state highways that ae designed fo highe speed taffic (55 mph speed limit) and egional tavel. They include bypass lanes in some aeas and tun lanes at some intesections. Appendix A includes data fo the existing intesections in the study aea. The intesections at TH 97 at Manning and Olinda ae fou-way stop intesections. TH 97 has stop sign contol at TH 95. None of the intesections in the study aea cay sufficient taffic volume to waant a taffic signal. The poposed haul oute is shown in Figue 4. This oute is poposed fo all access to the Zavoal Site unde the two build altenatives. The poposed oute would haul add-ock diectly fom the Zavoal Site to the Scandia Mine on TH 97 instead of using seveal outes along TH 97 TH 95 TH 243 and County Road 15. This would change the tavel patten by eplacing the cuent outes with the diect outes between the two sites. Unde the two build altenatives tuck taffic cuently taveling to and fom the Scandia Mine would be eplaced by the new oute. This would educe tuck volumes on TH 95 TH 243 and TH 97 (west of Manning). Tucks with othe egional and local destinations would continue to opeate on these oadways; howeve the oveall daily volumes would be educed significantly duing the mining season with the haul tucks now poviding diect access fom Zavoal to Scandia on TH 97. Mn/DOT completed oadway constuction impovement pojects on sections of TH 97 in 2007 and TH 95 in 2009 which ae impotant fo mobility and safety on the Tunk Highways. These wee pimaily pavement ehabilitation dainage and associated impovements fo safety and maintenance. Washington County does not have impovements planned in thei 5-Yea Capital Impovement Plan. The poposed City of Scandia Tail Plan pesents nea and long-tem impovement plans fo tails in the aea and connections to egional tails. The tails ae planned fo both pedestian and bicycle uses. Safety fo pedestian and bicycle uses is an impotant component in the tail planning pocess. The poposed tail on TH 97 is planned as an off-oad tail to be constucted in the longtem plan. The off-oad tail is ecommended as a safe option with the 55 mph speed limit and lage tucks. The poposed tail on TH 95 is also an off-oad tail. This is also ecommended as a safe option with the 55 mph speed limit and lage tucks. The tail cossing at TH 97 and TH 95 is in the long-tem plan and should be eviewed in coodination with taffic and intesection opeations. Advanced signing fo the tail cossing should be added. A tailhead is shown at TH 97 and TH 95. If the Zavoal Site is opeational the location of the tailhead should be eviewed due to the poximity of the hauling vehicles. New cossings on TH 97 at Oakhill and Ozak ae called out fo design with taffic contols. This would most likely be some type of waning flashes not taffic signals. Potential waning stiping should also be eviewed. 9

15 Pickett 195Th Copyight 2010 By: AECOM 188Th Ridge Quentin 280Th Co ix R ive Pe ki Sain t Quint Nd 10Th t Long Lake Old Maine Big Maine Lake w vie k a P AADT (two-way taffic) Souce: MnDOT Taffic Volume Pogam GIS Taffic Data 18Th William OBien State Pak AVERAGE DAILY TRAFFIC VOLUMES ZAVORAL MINING EIS SCANDIA MINNESOTA Obien Hay Lake a 20Th 199Th Qua n Maxwell Lay ton m ag Ne wg ate Maxwill 3050 #### 192Nd La ka 25Th 202Nd Oxb oo Jeffey Keystone 30Th 209Th 197Th July Polk Wisconsin m u st O Owell Legend 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Miles White Rock Lake Lama 1 oy N Zavoal Site Qu alit y d ly Lang 0.5 Pais Washington 190Th ³ Ol ind a Oldfield 213Th 97 h 5T 20 45Th 215Th 214Th Fish Lake 187Th 186Th Po m d an Ol Paish 6400 Halfbeed Lake 199Th No va k City of Scandia 205Th 50Th 220Th Ozak Kib y hi ll Novak 218Th Killian Keathe Lofton 1300 Kik Kik Jud e e Ju ni p 213Th 9000 Maybey Peabody Jewel Nolan 50 July 760 Jody 206Th h 218T 1 213Th Jewel O ak Meadowbook 00 Goose Lake Th 216Th ld nfie Pe O en 223Rd h 219T Foest Lake 230Th 228Th 15A Elwell Lake Scandia Mine Site 55Th Pila 275 al Impei Julep 3 Oldfield Ke sle Nielsen Lake 237Th 236Th ns July n Je ns e 345 ca Julianne 230Th Minnesota Bone Lake Sea Lake 236Th Meadowbook 232Nd Clea Lake 228 Th 2 202Nd 238Th ie lan Me Itas Twin Lake Canbey Lake 0 240Th Pomoy Inwood 240Th Manning Ke lle 230Th Thid Lake Th 235Th Iva n Fist Lake Second Lake Quinnell Th d 243R Moody Lake Bich Lake Th ille Panola Quinlan M Chisago 242Nd 239Th 250Th Fouth Lake Mogan School Lake ca Itas 244Th 250Th O ld fie ld Jeffey Little Comfot Lake Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 3

16 240Th Pickett n 218Th Kib y Halfbeed Lake Maybey 205Th Jeffey Miles Old M ai ne 280Th Co ix R ive Sain t w vie k Pa Long Lake Copyight 2010 By: AECOM Qua n t Ne wg ate Maxwill Maxwell Lay ton Keystone July Big Maine Lake 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Hay Lake 195Th 20Th 18Th 199Th 192Nd Obien 197Th 0.5 ag a Owell 192Nd 190Th to Scandia Mine Site Entance ³ 0 Quentin 202Nd m 30Th 25Th 52 La ka Wisconsin Polk m u st O 202N White Rock Lake Lama Qu ali ty Th Fish Lake 187Th 15 d Legend 40Th Hennessey 95 Quinnell Jody Th _ [ Pe ki No va k Oldfield Pais Lofton Kik Killian Ke ew ah tin y Jul Jewel 1 Oxb oo Ive no Ju 204Th Zavoal Site 210Th Goose Lake _ [ City of Scandia Washington Cloutie 45Th Jeffey Ke sle Jamaica Keathe 217Th 216Th 215Th _ [ Jud e Kik 220Th h 219T 206Th Pe Oakhill Itasca Je ns e 223Rd Elwell Lake Je we l 50Th ld nfie Janeo O en _ [ Foest Lake so n 230Th Minnesota 50 Scandia Mine Site 55Th Pila 2 202Nd 3 228Th Julep Canbey Lake 215Th 237Th 236Th lan No Nielsen Lake Sea Lake 236Th Meadowbook Iva n 232Nd Clea Lake Julianne 230Th Jensen 230Th Bone Lake Lo fto n ie lan Me Ke lle Twin Lake 60Th 240Th 238Th 235Th Ridge Quinlan 25 Thid Lake Th ns Manning Fist Lake Second Lake Pomoy 239Th Moody Lake d 243R O ld fie ld Mogan ca 85 Bich Lake 28 0T h 86 s Ita 245Th School Lake July 86 Panola ille M Chisago 243Rd 250Th Fouth Lake Quint Jeffey 250Th William OBien State Pak PROPOSED ADD ROCK HAUL ROUTE ZAVORAL MINING EIS SCANDIA MINNESOTA 10Th Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 4

17 5.1.2 Altenative 1 Tille spefeed Altenative Aggegate fom the Zavoal Site would be tanspoted to the Scandia Mine as shown in Figue 4. Tille plans to use mateial fom the Zavoal Site to eplace mateial tanspoted to Scandia fom othe locations noth and east. The Site would be opeating fom 5 to 10 yeas. Tille povided the pojected daily and peak hou tuck volumes unde this mining plan. These volumes wee eviewed and detemined to be epesentative of the maximum capacity the Scandia Mine could handle. The base taffic volumes fo Altenative 1 ae shown in Figue 5. The base taffic volumes fo Altenative 1 wee developed based on the poposed mining plan fo Tille. The pojected daily tuck volumes wee calculated using the following data: Numbe of weeks scheduled fo mining opeations each yea (6 to 12). Total pojected aggegate mined each yea fo tanspot fom the Zavoal Site to the Scandia Mine ( to tons). The numbe of loads pe yea is calculated based on the haul weight and typical weight tansfeed in one tuckload (20 to 24 tons pe tuckload). The numbe of loads pe yea is then conveted to pojected loads pe day based on the typical ange of tuckloads that can be tanspoted duing a woking day. This calculates to 167 to 200 tuckloads on a typical woking day (334 to 400 ound tuck tips). Tille has noted that poduction can vay and be lowe than the 167 tuckloads. Ou team detemined it appopiate to analyze a highe level of taffic volume to evaluate the potential impacts to the oadway system. The absolute maximum numbe of tucks in one woking day has been defined at 280 tucks (560 ound tips). This scenaio is unlikely because tucks would need to un at full houly capacity (28 loads pe hou) fo 10 consecutive hous to each this level. Howeve it is analyzed in the memoandum because a majo demand fo gavel has the potential to each this level Altenative 2 No-Build Altenative (existing land uses) This is the No-Build altenative. The base taffic volumes fo Altenative 2 ae shown in Figue 6. The base taffic volumes fo Altenative 2 wee developed based on Tille s plan to continue opeations at the Scandia Mine unde a No-Build scenaio. The ange of pojected loads is shown based on Tille s ecods ove the past 7 yeas of opeation fo the Scandia Mine. 12

18 240Th Pickett 240Th 213Th Halfbeed Lake Maybey 202N Ne wg ate ## Long Lake Maximum Daily Capacity (tuck ound tips) _ [ Entance to Scandia Mine Site 1 Big Maine Lake Copyight 2010 By: AECOM 88Th Co ix R ive Sain t Quinnell 18Th 199Th w vie k a P 192Nd Obien 10Th t 195Th 20Th Qua n Maxwill Keystone Hay Lake a Altenative 1 - Daily Haul Volumes (tuck ound tips) Maxwell Lay ton ly Lang July m ag Oxb oo Jeffey 192Nd 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Miles 25Th 197Th #### La ka Owell Legend White Rock Lake Lama 1 30Th Th Nd 199Th 0 Polk Wisconsin m u st O 15 d ³ Pe ki 209Th h 5T 20 Fish Lake 187Th 186Th Quentin Pais Th ns No va k Oldfield 213Th 97 Old Maine Jody Jewel 204Th Th 214Th Quality y Jul 206Th Ke ew ah tin no Ju Kib y 210Th Je we l Zavoal Site 220Th Pomoy 1 City of Scandia d an Ol Paish _ [ hi ll 45Th Ol ind a 218Th Killian Keathe e Ju ni p 217Th 216Th 215Th h 218T Oldfield Kik 220Th Goose Lake O ak Novak _ [ Meadowbook Ii sh 223Rd Kik Jud e Foest Lake 215Th 50Th ld nfie Pe Peabody _ [ Elwell Lake h 219T Minnesota Th O en Th Pila Canbey Lake 202Nd 3 228Th Julep Washington Scandia Mine Site Lofton Jeffey Janeo Nielsen Lake 237Th 236Th Nolan Iva n Bone Lake Clea Lake Julianne 230Th Jensen al Impei 224Th Ke sle Jamaica ca 230Th 232Nd ie lan Me Itas Twin Lake Sea Lake 236Th Meadowbook 235Th Ke lle 238Th Manning Je ns e n 240Th Ridge 25 Thid Lake 24 Pomoy July Fist Lake Second Lake 280Th 85 Quint 245Th d 243R Moody Lake Bich Lake Inwood ille Panola Quinlan M Chisago 242Nd 239Th 250Th Fouth Lake Mogan School Lake ca Itas 244Th 250Th O ld fie ld Jeffey Little Comfot Lake William OBien State Pak BASE TRAFFIC VOLUMES ALTERNATIVE 1 (5 TO 10 YEARS) ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 5

19 240Th Pickett 240Th 213Th Halfbeed Lake Maybey 202N Entance to Scandia Mine Site 1 Note: Actual data based on 7 yeas add ock volumes Copyight 2010 By: AECOM 88Th Co ix R ive Sain t Quinnell 192Nd Obien 10Th t _ [ Big Maine Lake 18Th 199Th w vie k a P Ne wg ate ## Long Lake Maximum Daily Capacity (tuck ound tips) 20Th Qua n Maxwill Keystone Hay Lake Altenative 2 - No Build 195Th a Daily Haul Volumes (tuck ound tips) Maxwell Lay ton ly Lang July m ag Oxb oo Jeffey 192Nd 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Miles 25Th 197Th #### La ka Owell Legend White Rock Lake Lama 1 30Th Th Nd 199Th 0 Polk Wisconsin m u st O 15 d ³ Pe ki 209Th h 5T 20 Fish Lake 187Th 186Th Quentin Pais Th ns No va k Oldfield 213Th 97 Old Maine Jody Jewel 204Th Th 214Th Quality y Jul 206Th Ke ew ah tin no Ju Kib y 210Th Je we l Zavoal Site 220Th Pomoy 1 City of Scandia d an Ol Paish _ [ hi ll 45Th Ol ind a 218Th Killian Keathe e Ju ni p 217Th 216Th 215Th h 218T Oldfield Kik 220Th Goose Lake O ak Novak _ [ Meadowbook Ii sh 223Rd Kik Jud e Foest Lake 215Th 50Th ld nfie Pe Peabody _ [ Elwell Lake h 219T Minnesota Th O en Th Pila Canbey Lake 202Nd 3 228Th Julep Washington Scandia Mine Site Lofton Jeffey Janeo Nielsen Lake 237Th 236Th Nolan Iva n Bone Lake Clea Lake Julianne 230Th Jensen al Impei 224Th Ke sle Jamaica ca 230Th 232Nd ie lan Me Itas Twin Lake Sea Lake 236Th Meadowbook 235Th Ke lle 238Th Manning Je ns e n 240Th Ridge 25 Thid Lake 24 Pomoy July Fist Lake Second Lake 280Th 85 Quint 245Th d 243R Moody Lake Bich Lake Inwood ille Panola Quinlan M Chisago 242Nd 239Th 250Th Fouth Lake Mogan School Lake ca Itas 244Th 250Th O ld fie ld Jeffey Little Comfot Lake William OBien State Pak BASE TRAFFIC VOLUMES ALTERNATIVE 2 (NO BUILD) ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 6

20 5.1.4 Altenative 3 Reduced Time Fame Aggegate fom the Zavoal Site would be tanspoted to the Scandia Mine as shown in Figue 4. The Site would be opeating up to 5 yeas. Tille povided the pojected daily and peak hou tuck volumes unde this mining plan. These volumes wee eviewed and detemined to be epesentative of the poposed Poject based on the maximum capacity the Scandia Mine could handle. Tille plans to use mateial fom the Zavoal Site to eplace mateial tanspoted to the Scandia Mine fom othe locations noth and east. The numbe of tucks and geneal location would be equested fom Tille to evaluate these impacts. The base taffic volumes fo Altenative 3 ae shown in Figue 7. The based taffic volumes fo Altenative 3 wee developed based on the poposed mining plan fo Tille. The pojected daily tuck volumes wee calculated using the following data: Numbe of weeks scheduled fo mining opeations each yea (12 to 18). Total pojected aggegate mined each yea fo tanspot fom the Zavoal Site to the Scandia Mine ( to tons). The numbe of loads pe yea and pojected loads pe day ae the same as Altenative 1. The maximum numbe of tucks in one woking day is the same as Altenative 1. The poposed haul taffic opeations fo the altenatives include a ange in the mining activity and the duation. A summay of the altenatives and the associated activity data is shown in Table 1. Hauling taffic fo the No-Build altenative epesents hauling levels fom cuent add-ock souces to the Scandia Mine. Altenatives 1 and 3 pesent two options fo opeating the Zavoal Site with tanspot of add-ock to the Scandia Mine via TH 97. The daily tuck volume calculations wee defined in the pevious section and summaized in Figues 5 6 and 7. The desciptions below highlight the pocess fo data shown in Table 1. Mining activity planned life of the Zavoal Site (unde Altenatives 1 and 3). Tons pe yea mined planned ange of total aggegate weight that would be hauled each yea. This is calculated fo the numbe of yeas of mining activity and the typical haul weight pe tuck. 15

21 240Th Pickett 240Th 213Th Halfbeed Lake Maybey 202N Copyight 2010 By: AECOM Maxwill 195Th Ne wg ate Maxwell 188Th Co ix R ive Sain t Quinnell 18Th 199Th w vie k a P 192Nd Obien 10Th t Maximum Daily Capacity (tuck ound tips) Long Lake Entance to Scandia Mine Site 20Th Qua n Keystone July Lay ton Hay Lake a Oxb oo Jeffey ly Lang _ [ m ag Altenative 3 - Daily Haul Volumes (tuck ound tips) Big Maine Lake 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Miles 25Th 197Th 192Nd #### ## La ka Owell Legend White Rock Lake Lama 1 30Th Th Nd 199Th 0 Polk Wisconsin m u st O 15 d ³ Pe ki 209Th h 5T 20 Fish Lake 187Th 186Th Quentin Pais Th ns No va k Oldfield 213Th 97 Old Maine Jody Jewel 204Th Th 214Th Quality y Jul 206Th Ke ew ah tin no Ju Kib y 210Th Je we l Zavoal Site 220Th Pomoy 1 City of Scandia d an Ol Paish _ [ hi ll 45Th Ol ind a 218Th Killian Keathe e Ju ni p 217Th 216Th 215Th h 218T Oldfield Kik 220Th Goose Lake O ak Novak _ [ Meadowbook Ii sh 223Rd Kik Jud e Foest Lake 215Th 50Th ld nfie Pe Peabody _ [ Elwell Lake h 219T Minnesota Th O en Th Pila Canbey Lake 202Nd 3 228Th Julep Washington Scandia Mine Site Lofton Jeffey Janeo Nielsen Lake 237Th 236Th Nolan Iva n Bone Lake Clea Lake Julianne 230Th Jensen al Impei 224Th Ke sle Jamaica ca 230Th 232Nd ie lan Me Itas Twin Lake Sea Lake 236Th Meadowbook 235Th Ke lle 238Th Manning Je ns e n 240Th Ridge 25 Thid Lake 24 Pomoy July Fist Lake Second Lake 280Th 85 Quint 245Th d 243R Moody Lake Bich Lake Inwood ille Panola Quinlan M Chisago 242Nd 239Th 250Th Fouth Lake Mogan School Lake ca Itas 244Th 250Th O ld fie ld Jeffey Little Comfot Lake William OBien State Pak BASE TRAFFIC VOLUMES ALTERNATIVE 3 (5 YEARS OR LESS) ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 1 mile PROJECT FIGURE 7

22 Pojected weeks opeating pe yea data povided by Tille fo thei pojected length of haul season each yea. This is based on a 5-day week with a maximum of 10 woking hous in one wokday. Pojected loads pe yea calculated based on the ange of tons pe yea mined and typical haul weight. Typical tons pe tuckload weight of aggegate hauled by one tuck (ange povided). Pojected loads pe day calculated tuckloads hauled in a single day. This is based on the planned numbe of weeks of mining tons mined in one yea and typical tuck load. The loads ae also shown as ound tips (tuck uns fom the Zavoal Site to the Scandia Mine and back). Maximum capacity loads pe day calculated based on an absolute peak capacity to un tucks between sites. This would equie unning 28 tucks evey hou fo 10 hous pe day (the maximum haul ate). Maximum capacity loads pe hou the maximum numbe of tucks that could be hauled in one hou is 28. Table 1. Add-Rock Haul Taffic fo Each Altenative Task Altenative Altenative 2 No-Build Altenative 1 Altenative 3 (Hauling fom (5 to 10 Yeas) (5 Yeas o Less) cuent add-ock souces) Mining activity 5 to10 yeas 20 to 30+ Yeas 3 to 5 yeas Tons pe yea mined to to to Pojected weeks opeating pe yea 6 to 12 6 to to 18 Pojected loads pe yea 5000 to to to Typical tons pe tuckload 20 to to to 24 Pojected loads pe day (ange) tucks tucks tucks tips tips tips Maximum capacity loads pe day 280 tucks 280 tucks 280 tucks 560 tips 560 tips 560 tips Maximum capacity loads pe hou 28 tucks 28 tucks 28 tucks 56 tips 56 tips 56 tips 17

23 5.2. Safety Evaluation Cash data fo the key oadways in the study aea was collected fo the yeas and Mn/DOT povided updated cash data fo the Scandia aea fo oadway segments and intesections. The data is mapped and details included in the tables shown on Figues 8 9 and 10. The oadway segments in the study aea fo cash data included: TH 97 fom Manning to Lofton TH 97 fom Lofton to Olinda TH 97 fom Olinda to TH 95 Lofton fom TH 97 to 228th Steet The intesections in the study aea fo cash data included: TH 97 & Manning TH 97 & Lofton TH 97 & Meadowbook TH 97 & Oakhill TH 97 & Olinda TH 97 & TH 95 The segment cashes ae elatively small in numbe and include un off oad and dee collision cashes. Segment cashes ae defined as cashes that occu on a section of oadway between intesections (but not including the intesection). These ae typical fo ual aeas. Thee appeas to be no majo contibuting factos in tems of oadway geomety and opeations. Mn/DOT has eviewed the sight distance at the TH 97 and TH 95 intesection and found no deficiencies. TH 97 was ehabilitated in 2007 and the sight distances met Mn/DOT standad equiements at the 55 mph speed limit. TH 95 was ehabilitated in 2009 and the sight distances met Mn/DOT standad equiements at the 55 mph speed limit. The intesection cash data is geneally low at most intesections. The TH 97 and Lofton intesection had the highest numbe of cashes duing the 3-yea peiod (12 cashes) including five ight angle cashes. The TH 97 and Lofton intesection was pat of Mn/DOT s esufacing poject. The cause of the cashes is likely due to dive eo by tuning in font of vehicles on TH 97. If thee ae concens about speeding on TH 97 this is an enfocement issue that equies the attention of the State Patol. 18

24 Kik Kik Lofton Segments: TH 97 fom Manning to Lofton Lofton fom TH 97 to 228th St Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 ID Yea Seveity vehicles Type Desciption Type Diection Type Diection Popety damage 1 Collision with dee Othe Ca W Popety damage 2 Collision with moto vehicle Rea end Ca W Ca W Non incapacitating injuy 1 Collision with building/wall Ran off oad left side 6 tie tuck N Intesections: TH 97 at Lofton Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 Clea ID Lake Yea Seveity vehicles Type Desciption Type Diection Type Diection Possible injuy 2 Collision with moto vehicle Right angle Ca S Ca Bone W Lake Incapacitating injuy 2 Collision with moto vehicle Right angle Ca S Pickup E Popety damage 1 Collision with building/wall Ran off oad ight side Ca S Popety damage 1 Collision with tee/shubbey Ran off oad left side Ca S Popety damage 1 Collision with tee/shubbey Nielsen Ran Lake off oad ight side SUV S Non incapacitating injuy 2 Collision with moto vehicle Rea end Ca E Ca E Non incapacitating injuy 1 Collision with tee/shubbey Ran off oad left side SUV S Popety damage 2 Collision with moto vehicle Right angle Pickup S Ca E Popety damage 2 Collision with moto vehicle Right angle Ca E Ca N Popety damage 2 Collision with moto vehicle Sideswipe same diection Ca W Van W Popety damage 2 Collision with moto vehicle Right angle Ca E SUV N Popety damage 2 Collision with moto vehicle Rea end Ca E Ca E 230Th 232Nd Lofton 228Th Mallad Melanie 3 225Th 223Rd 220Th Scandia Mine Site 217Th Manning 218Th Killian 216Th 215Th 213Th Olo ³ Feet Cheshie Ln N Suite 500 Minneapolis MN T: F: Copyight 2010 By: AECOM CRASH DATA ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: Appoved: Scale: PROJECT FIGURE KLM 06/01/2011 LK 06/01/2011 1" = 1500 feet

25 Segments: TH 97 fom Lofton to Olinda Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 ID Yea Seveity vehicles Type Desciption Type Diection Type Diection Popety damage 1 Ovetun / ollove Ran off oad ight side SUV E Popety damage 1 Collision with sign stuctue o post Ran off oad ight side Ca E Popety damage 1 Collision with dee Othe Ca W Incapacitating injuy 2 Collision with moto vehicle Head on Ca E Ca W Popety damage 1 Collision with dee Head on Ca W Popety damage 2 Collision with moto vehicle Sideswipe same diection Ca E Ca E 218Th Oakhill Oldfield Goose Lake Olinda Meadowbook Novak Oakhill Oland Oen Lofton Th Maxwill 213Th Intesections: TH 97 at Meadowbook TH 97 at Oakhill TH 97 at Olinda Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 ID Yea Seveity vehicles Type Desciption Type Diection Type Diection Incapacitating injuy 2 Collision with moto vehicle Right angle Motocycle 90 6 tie tuck E Popety damage 1 Collision with sign stuctue o post Ran off oad ight side Ca E Non incapacitating injuy 2 Collision with moto vehicle Right angle Ca S Ca W Non incapacitating injuy 2 Collision with moto vehicle Othe Van N Pickup W Popety damage 2 Collision with moto vehicle Othe Ca N Ca E Non incapacitating injuy 1 Collision with light pole Ran off oad ight side Van N Popety damage 3 Collision with moto vehicle Right angle Pickup N Pickup S Possible injuy 2 Collision with moto vehicle Rea end Van W SUV W Th Olinda 209Th Fish Lake Maybey Big Maine Lake ³ Feet 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Copyight 2010 By: AECOM CRASH DATA ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: Appoved: Scale: PROJECT FIGURE KLM 06/01/2011 LK 06/01/2011 1" = 1500 feet

26 Segments: TH 97 fom Olinda to TH 95 TH 95 fom 220th to Oakhill Oldfield Oland Goose Lake Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 ID Yea Seveity vehicles Type Desciption Type Diection Type Diection Popety damage 2 Collision with moto vehicle Not applicable SUV E Pickup E Popety damage 1 Othe type of collision Othe Van E Possible injuy 2 Collision with moto vehicle Office left field blank Pickup Van N Popety damage 1 Collision with embankment/ditch/cub Othe Ca Popety damage 1 Collision with embankment/ditch/cub Othe Ca S Olinda 220Th Penfield 215Th Oakhill Oakhill Oen 213Th Olinda 214Th 6-7 Paish Pomoy Intesections: TH 97 at Ozak TH 97 at TH 95 TH 95 at 220th 205Th 209Th Ostum Ozak Oxboo 209Th Penose Pyo Zavoal Site Numbe of Vehicle 1 Vehicle 1 Vehicle 2 Vehicle 2 ID Yea Seveity vehicles Type Desciption Type Diection Type Diection Popety damage 2 Collision with moto vehicle Rea end Ca W Ca W Popety damage 2 Collision with moto vehicle Right angle Ca E Van W Popety damage 2 Collision with moto vehicle Sideswipe same diection Ca W Ca W Non incapacitating injuy 1 Collision with pedalcycle Right angle Bicycle NW Pickup NE Non incapacitating injuy 2 Collision with moto vehicle Rea end Motocycle S Ca S Possible injuy 1 Ovetun / ollove Othe Motocycle S Quality Quandant 209Th 4 3 Quinnell Quint 205Th ³ Feet 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Copyight 2010 By: AECOM CRASH DATA ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: Appoved: Scale: PROJECT FIGURE KLM 06/01/2011 LK 06/01/2011 1" = 1500 feet

27 Thee was one fatal cash just noth of the TH 97 and TH 95 intesection in 2006 that involved a pedestian. This data was not povided in the initial cash epots and was found afte additional eseach extended the intesection seach aea. Ou team was notified of this cash at the PAC meeting by a esident who was concened because it was a pedestian stuck by a tuck. The State Patol investigated the cash and found that it was an eo by the pedestian in walking in font of the tuck and the dive was unable to stop in time. A eview of the data does not show involvement of semi-tucks in the aea cashes. The data captues actual cashes and does not ecod nea miss o othe close call data. 6.0 Potential Mitigation The following is a list of potential mitigation that may be included as pat of the Zavoal Site EIS pocess. Constuct the new diveway access diectly acoss fom TH 97. This is a equied item by Mn/DOT fo safe access. Constuct a nothbound ight tun lane on TH 95. This was listed as a equiement fo a diveway pemit by Mn/DOT. The tun lane should be consistent with the design of the existing left tun lane. This would also match the design on the southbound appoach. (The sight distance equiements wee met based on Mn/DOT eviews of the existing TH 97 and TH 95 intesection and the 2007 and 2009 ehabilitation pojects.) In ode to ensue that additional tuck taffic would not esult fom hauling fom the Zavoal Site at peak demand concuently with othe sites (Wisconsin Washington County Chisago County and othe Easten Minnesota locations) the numbe of tucks hauling addock to the Scandia Mine could be limited to the pojected maximum level of 280 tucks o 560 tips pe day o below and documentation could be equied. Relocate the small tail unning along TH 95 and e-establish the tail connection. The City of Scandia Tail Plan should be coodinated with Mn/DOT to povide a safe bicycle oute and avoid conflicts with vehicle taffic on TH 97 (at the 55 mph speed limit). Conside Tille s contibution to tail constuction and econnection as mitigation. Tuck waning signs that ae MMUTCD compliant ae ecommended on TH 95 to advise dives of tucks cossing TH 97 in and out of the poposed Zavoal Site. The installation of waning flashes is anothe option but should be discussed with Mn/DOT to evaluate the safety impacts. 22

28 \ Appendix A Existing Signing & Stiping at Intesections

29 15A Stop Sign CSAH W Stop Sign Stop Sign Right Tun Lane 97 Stop Sign CSAH 15 Stop Sign 97 E Manning 15 ³ Feet 161 Cheshie Ln N Suite 500 Minneapolis MN T: F: Copyight 2010 By: AECOM SIGNING AT INTERSECTION TH 97 & MANNING (CSAH 15) ZAVORAL MINING EIS SCANDIA MINNESOTA Dawn: KLM 06/01/2011 Appoved: LK 06/01/2011 Scale: 1" = 100 feet PROJECT FIGURE A-1