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Home My WebLink About9C Feasibility Report for Co Rd 21 Wagon Bridge Pedestrian Safety ImprovementsPRIO� ti U tr1 4646 Dakota Street SE Prior Lake. NM 55372 CITY COUNCIL AGENDA REPORT MEETING DATE: JUNE 6, 2011 AGENDA #: 9C PREPARED BY: LARRY POPPLER, INTERIM CITY ENGINEER PRESENTED BY: LARRY POPPLER AGENDA ITEM: CONSIDER APPROVAL OF A RESOLUTION ACCEPTING A FEASIBILITY REPORT FOR COUNTY ROAD 21 WAGON BRIDGE PEDESTRIAN SAFETY IMPROVEMENTS AND DIRECTING STAFF TO WORK WITH SCOTT COUNTY ON PURSUING OPTION #1 AS IDENTIFIED IN THE RE- PORT DISCUSSION: Introduction This agenda item accepts a feasibility report for pedestrian safety for the County Road 21 Wagon Bridge. Pedestrian safety alternatives were studied and options are discussed in the report. His tory The CR 21 Wagon Bridge is not anticipated to be reconstructed in the near future. Depending on structural condition it could be at least 15 -20 years before it is reconstructed. Currently this section of roadway has a traffic vo- lume of about 13,900 trips per day. That number is expected to grow to more than 32,000 trips per day by 2030. The impact of the CR 21 Extension Project scheduled for completion late 2011 or early 2012 is unknown at this point, but will most likely accelerate traffic volume increases which have somewhat stabilized during this period of growth slowdown. It should be noted that this roadway has the additional pressures of serving as a link to Mystic Lake Hotel and Casino. It is estimated that 20% of the patrons and employees access the SMSC Businesses using this roadway. Any growth at the Casino or other SMSC businesses will also impact this roadway whether City growth is occurring or not. Currently there are several pedestrian and vehicle safety issues related to the existing bridge. The current roadway is immediately adjacent to the si- dewalks reducing pedestrian safety. The roadway is undivided and the cur- rent roadway curvature on both approaches to the bridge tends to require lower speeds to maintain vehicle and lane control. A median would create a safer vehicle environment. Without removal of a sidewalk there is no poten- tial for installation of a median on the current bridge deck. City Staff believes that the opening of CR 21 to the north will most like ex- acerbate the above safety issues. Because the bridge's condition will most likely not dictate replacement any time soon, the City and County should ex- plore alternative means of addressing the safety issues which would allow the County to maximize the useable life of the bridge. In September of 2010, the City Council adopted Resolution 10 -085 accepting a SHIP grant in the amount of $10,000 to help fund a study exploring pede- strian safety options. WSB and Associates performed the study and it is now complete. Current Circumstances The report considers two potential options to add capacity and safety for pe- destrians beyond the two sidewalks on the bridge. By providing additional capacity, a median separating the County Road 21 travel lanes would be possible. Option #1 Removes the existing sidewalk and railing on the south side of the existing bridge and adding a six -foot median to the bridge. This option also includes adding a prefabricated steel truss bridge adjacent to the south side of the bridge. The cost of this option is estimated at $715,519.00. Advantages include: 1. Completely separates the pedestrian from County Road 21 traffic 2. Lifespan of the pedestrian bridge is independent of the existing 20 year old bridge. 3. Does not require as many modifications to the existing bridge. 4. Most cost effective. 5. Does not require work in the lake. 6. Scott County Highway Department endorses this option. 7. Scoring for Federal transportation dollars would be higher. Disadvantages include: 1. Changes the aesthetics of the bridge from the south side. 2. Requires more room for installation 3. Replacing the railing on the existing bridge will be a challenge Option #2 Includes removing the sidewalk and railing on the south side of the bridge and adding a six foot median to the bridge. This option also includes widen- ing the bridge approximately 14 feet using pre- stressed, double -tee beams similar to the existing bridge construction. The cost of this option is $1,447,094.00. Advantages discussed in the study include: 1. Maintains the look of the existing bridge. 2. Maintains consistent look between the north and south sides of the bridge. Disadvantages include: 1. Least cost effective option. 2. Does not completely separate the pedestrians and traffic. Separation occurs with a raised sidewalk. 3. Requires cofferdam work in the lake to install new piers. 4. The lifespan of the widening portion is limited by the lifespan of the existing 20 year old structure. 5. Since the pedestrian is not completely separated from traffic, scoring for Federal transportation dollars would be less than option #1. In addition to the above issue there is also a winter snowmobile safety issue. In order to move between the upper and lower Prior Lake, snowmobiles ei- ther need to make an at -grade crossing of CR 21 at the Wagon Bridge or 2 risk crossing thin ice under the bridge. Both are undesirable options from a traffic safety point of view. In a normal year at least one snowmobile typical- ly falls through the ice. The report also discussed a snowmobile access be- low the existing bridge using the existing embankment. The analysis dis- cussed the creation of an 8 foot bench, 1.5 feet below the normal water lev- el. Signage would direct snowmobilers to the bench area. Conclusion Based on the report, Staff is recommending that option #1 be chosen. ISSUES: Traffic volumes on CR 21 will continue to increase exacerbating the current safety issues. In order to make safety improvements on the Wagon Bridge, additional funding currently not available from the City and County is needed. FINANCIAL IM- This project is a candidate for Federal Transportation Enhancement funds PACT: through the Regional STP Solicitation. The County will need to submit a 2011 Transportation Enhancement application by July 18, 2011 to be eligible for funding for construction in 2015. It is our hope that the grant funds would pay the vast majority of the anticipated costs. The city's share might be ap- proximately $100,000 for Option #1. Staff has been in contact with the Coun- ty on this application. Funds for this purpose would be programmed in the city's Capital Improvement Program. ALTERNATIVES: 1. Approve a resolution accepting the feasibility report for County Road 21 Wagon Bridge pedestrian safety improvements and directing Staff to work with Scott County in pursuing Option #1 as identified in the report. 2. Deny this item for a specific reason and provide Staff with direction. 3. Table this item until some date in the future. RECOMMENDED Alternative #1 MOTION: PRIG U try \�IMvESo 4646 Dakota Street SE Prior Lake. MN 55372 RESOLUTION 11 -xxx A RESOLUTION ACCEPTING A FEASIBILITY REPORT FOR COUNTY ROAD 21 WAGON BRIDGE PEDESTRIAN SAFETY IMPROVEMENTS AND DIRECTING STAFF TO WORK WITH SCOTT COUNTY ON PURSUING OPTION #1 AS IDENTIFIED IN THE REPORT Motion By: Second By: WHEREAS, Traffic volumes on County Road 21 are anticipated to grow to more than 32,000 trips per day by 2030; and WHEREAS, Existing pedestrian, snowmobile and vehicular safety issues are anticipated be exacerbated due to the increase in traffic volumes; and WHEREAS, The current bridge condition will most likely not require reconstruction in the near future; and WHEREAS, The City and County Staffs believe interim improvements could be made to improve pedestrian and vehicle safety; and WHEREAS, A report of pedestrian safety options has been completed. NOW THEREFORE, BE IT HEREBY RESOLVED BY THE CITY COUNCIL OF PRIOR LAKE, MINNESOTA as follows; 1. The recitals set forth above are incorporated herein. 2. The City Council accepts the Bridge 70517 — CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility Report prepared by WSB and Associates dated March 2011. 3. The City Council directs City Staff to work with the Scott County Highway Department in pursuing Federal Transportation Enhancement funding for Option #1 as discussed in the report. PASSED AND ADOPTED THIS 6th DAY OF JUNE 2011. YES NO M ser Myser Erickson Erickson Hedber — Hedberg Keeney Keene L SOukup Souku Frank Boyles, City Manager i CADocuments and Settings \cgreenNy Documents \SharePoint Drafts4agon bridge resolution.doc March 2011 Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility Prepared for: WSB Project No. 1905 -01 U O pRI0 t� NESO City of Prior Lake 4646 Dakota Street SE Prior Lake, MN 55372 (952) 447 -9800 WSB 701 Xenia Avenue South, Suite 300 Minneapolis, MN 55416 763.541.4800 .V k". TABLE OF CONTENTS 1. EXECUTIVE SUMMARY ........................................................ ..............................1 2 . INTRODUCTION .................................................................... ..............................1 2 .1 Authorization ................................................................ ..............................1 2 .2 Scope ........................................................................... ..............................1 2 .3 Data Available ............................................................. ............................... 2 3. GENERAL BACKGROUND ................................................... ..............................3 3 .1 Project Location .......................................................... ............................... 3 3 .2 Existing Conditions ..................................................... ............................... 3 4. PROPOSED ADDITIONAL PEDESTRIAN CAPACITY OPTIONS ......................4 4 .1 General ........................................................................ ..............................4 4 .2 Option 1 ....................................................................... ..............................4 4 .2.1 Major Assumptions .......................................... ............................... 5 4 .2.2 Advantages ....................................................... ..............................6 4 .2.3 Disadvantages .................................................. ..............................6 4.2.4 Opinion of Probable Cost .................................. ..............................6 4 .3 Option 2 ...................................................................... ............................... 6 4.3.1 Major Assumptions .......................................... ............................... 7 4 .3.2 Advantages ....................................................... ..............................7 4 .3.3 Disadvantages .................................................. ..............................7 4.3.4 Opinion of Probable Cost ................................. ............................... 7 4.4 CONCLUSION AND RECOMMENDATION .......................... ............................... 7 4.5 POTENTIAL FUNDING SOURCES ...................................... ............................... 7 5. PROPOSED SNOWMOBILE ACCESS ................................ ............................... 7 Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, AN WSB Project 1905 -01 CERTIFICATION I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. Barritt Lovelace, PE Date: March 16, 2011 Reg. No. 40456 Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1905 -01 1. EXECUTIVE SUMMARY The City of Prior Lake, in conjunction with Scott County, have been studying safety improvements along the CSAH 21 corridor between CSAH 82 and TH 13. They have identified the need to study safety improvements at the Prior Lake Wagon Bridge for vehicles, pedestrians, and snowmobiles. The bridge is designated by Mn /DOT as Bridge 70517. The bridge is a three -span, prestressed double -tee bridge and crosses a narrow channel between upper and lower Prior Lake. The bridge was built in 1991 and is in adequate condition according to Mn /DOT's bridge inventory report. The County's study indicates placing a median to be placed in the center to separate the opposing traffic to minimize head -on accidents through this area. The main purpose of this Pedestrian Crossing Feasibility Study is to identify feasible alternatives to allow for a center median and still provide pedestrian access through this area meeting regional trail design standards. The second purpose of this study is to identify improved snowmobile access under the bridge between upper and lower Prior Lake. The current trail system along CSAH 21 is classified as a County regional trail corridor which is typically built to a ten -foot width to accommodate two -way recreational uses. 2. INTRODUCTION 2.1 Authorization On September 20, 2011, the City of Prior Lake authorized the preparation of an engineering feasibility study to address options relating to improving vehicle and pedestrian safety at the CR 21 Wagon Bridge. 2.2 Scope This study was to consider two potential options to add capacity for pedestrians beyond the two sidewalks on the bridge. Providing additional capacity and width would make adding a median on the bridge feasible. The first option is to add a separate pedestrian bridge adjacent to the existing structure. The second option is to widen the existing bridge. The feasibility should also determine if it is, possible to improve safety for snowmobiles passing under the bridge. The last part of the feasibility should address how the improvements would affect the lifecycle of the existing bridge. Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1905 -01 Page 1 This feasibility study answers the following questions: • Can a pedestrian bridge be added to the south side of the bridge and at what cost? • If a pedestrian bridge is feasible, could one of the sidewalks on the existing bridge be eliminated? • Can the bridge abutments and slopes be modified to safely allow snowmobiles to pass underneath? • If safety improvements are made, what is the expected life span of the existing bridge? 2.3 Data Available Information and materials used in the preparation of this report include the following: • Bridge 70517 Inventory Report • Bridge 70517 Inspection Report • Original Bridge Plans • Original Retaining Wall Plans • CR 21 Water Main Replacement Plans Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, AN WSB Project 1905 -01 Page 2 3. GENERALBACKGROUND 3.1 Project Location Bridge 70517 is located on CSAH 21 1.4 miles northwest of the junction with TH 13. The Bridge crosses Prior Lake separating upper and lower Prior Lake. �a e Mwsh e �3,7 9 �B y Pro St P.4 -f as d ' P.4"M St SE G+YR+cdvs �lN➢fS.fF .. 3 Cc O. $t 5E S1 SE C 3.2 Existing Conditions Bridge 70517 was constructed in 1991 and is a three -span prestressed, concrete double -tee bridge with a cast in place concrete deck. The bridge includes two cast -in -place concrete abutments and two cast -in -place concrete piers. All of the substructures are founded on driven piles approximately 30 to 45 feet deep. The bridge is described as being in adequate condition based on National Bridge Inventory criteria. The sufficiency rating is 72.2 out of a possible 100. The bridge is owned and inspected by Scott County. The last inspection was performed on November 19, 2010. The inspection report detailed some cracking, joint deterioration, and railing corrosion. The types and extent of the deterioration is typical for a bridge of this age. Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1905 -01 Page 3 The deck is currently configured for four lanes with a 52 -foot, curb -to -curb distance. The north side of the bridge has a six -foot raised sidewalk, and the south side of the bridge has an eight -foot sidewalk. An existing eight -foot wide bituminous trail runs along the south side of CSAH 21 on each side of the bridge. r. e 4. PROPOSED ADDITIONAL PEDESTRIAN CAPACITY OPTIONS 4.1 General Two different options exist to add additional capacity to the bridge. These options are illustrated in Appendix A. Option 1 includes removing the sidewalk and railing on the south side and adding a six -foot median to the bridge. This option also includes adding a prefabricated steel truss bridge adjacent to the south side of the bridge. Large block segmental retaining walls would be installed in front of the existing retaining walls to accommodate the ten -foot trail with two -foot reaction clear zone to obstructions. Option 2 includes removing the sidewalk and railing on the south side and adding a six -foot median to the bridge. This option also includes widening the bridge approximately 14 feet using prestressed, double -tee beams similar to the existing bridge construction. New cast -in -place retaining walls and railings would be built to match the existing bridge. 4.2 Option 1 This option includes removing the sidewalk and railing on the south side and adding a six -foot median to the bridge. This option also includes adding a Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MV WSB Project 1905 -01 Page 4 prefabricated steel truss bridge adjacent to the south side of the bridge. Large block segmental retaining walls would be installed in front of the existing retaining walls to accommodate the ten -foot path with two -foot reaction width. 4.2.1 Major Assumptions • Ten -foot pathway is required with two -foot clear zone reaction on each side. • The integral concrete railing /sidewalk would need to be removed and replaced. Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1905 -01 Page 5 St. Albans Bay Bridge — Similar Concept St. Albans Bay Bridge — Similar Concept • A five -foot median is required to accomplish traffic safety goals. 4.2.2 Advantages • Completely separates pedestrians and traffic. • Lifespan of the main span pedestrian bridge is independent of the existing 20- year old bridge. • Does not require as many modifications to the existing bridge. • Most cost effective option. • Does not require work in the lake by avoiding pier construction. 4.2.3 Disadvantages • Significantly changes the aesthetics of the bridge from the south side. • Requires slightly more room for installation. • Replacing the railing will be a challenge since it will be difficult to anchor the railing into the deck without the sidewalk being in place. 4.2.4 Opinion of Probable Cost • The total opinion of probable project costs for the improvements proposed in Option 1 is $715,519 as identified in Appendix B. 4.3 Option 2 Option 2 includes removing the sidewalk and railing on the south side and adding a six -foot median to the bridge. This option also includes widening the bridge approximately 14 feet using prestressed double tee beams similar to the existing bridge construction. New cast -in -place retaining walls and railings would be built to match the existing bridge. 14' -0" 12' -0" - PROPOSED SIDEWALK /PATHWAY CONCRETE PARAPET ORNAMENTAL METAL 6'-0" co 2 SPACES a 6' -0" 1 1 6" PROPOSED 22" PRESTRESSSED CONCRETE DOUBLE TEE BEAMS SOUTH Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, AN WSB Project 1905 -01 Page 6 4.3.1 Major Assumptions • Ten -foot pathway is required with two -foot clear zone reaction on each side. • The integral concrete railing /sidewalk would need to be removed and replaced. • A six -foot median is required to accomplish traffic safety goals. 4.3.2 Advantages • Maintains the look of the existing bridge. • Maintains a consistent look between the north and south sides of the bridge. 4.3.3 Disadvantages • Least cost effective option. • Does not completely separate the pedestrians and traffic. Separation occurs with a raised sidewalk. • Requires cofferdam work in the lake to install new piers. • The lifespan of the widened portion is limited by the lifespan of the existing 20 -year old structure. 4.3.4 Opinion of Probable Cost • The total opinion of project costs for the improvements proposed in Option 2 is $1,447,094 as identified in Appendix B. 4.4 CONCLUSION AND RECOMMENDATION Option 1 includes building a separate steel truss style pedestrian bridge. Option 2 includes widening the existing bridge using the same type of construction as the existing bridge. Each option is feasible and both options have their advantages and disadvantages. The first option is the most cost - effective option and is our recommendation. 4.5 POTENTIAL FUNDING SOURCES WSB has determined that the project may be a candidate for federal Transportation Enhancement (TE) Funds through the 2011 Regional STP Solicitation. The City of Prior Lake will need to submit a 2011 TE application for funding by July 18, 2011, in order to be considered for the funding. WSB can work with the City to initiate the application, including the identification of pertinent information necessary to completing the Qualifying Criteria and Prioritization Criteria of the application if desired. 5. PROPOSED SNOWMOBILE ACCESS Snowmobiles currently travel under the bridge during the winter months to pass between the upper and lower portions of the Lake. Open water tends to form as Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, AN WSB Project 1905 -01 Page 7 water passes through the constricted area under the bridge. There have been occasions where snowmobiles have gone through the thin ice or the open water. Options were explored to help alleviate this problem. The most feasible and cost effective solution is to construct a bench just below the normal water surface under the east span of the bridge. This bench would provide an area for snowmobiles to travel without the potential of breaking through the ice. Signing to direct snowmobilers could be provided by the local snowmobile club. A drawing showing this proposed alternative can also be found in Appendix A. Feasibility Report Bridge 70517•- CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, W WSB Project 1905 -01 Page 8 - -� — 1 -- - - -- ----------- - L — — — -- — — — ..,.1.. ��.� - -- - - - - - -- - --- - - -- -- f i 1 1 APPENDIX A PROJECT FIGURES Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, AN WSB Project 1905 -01 Page 9 CDk _ § � k \ \ ® co 22 ] . ■_ _ ■ ■� - ■!� w x : 1 k ul % � \ f � � o k k �IL _ In - k A� 00 _ � I-. - k b ° S � � § S - — - - - - -- - - -\ § ` k �■ § | L _ : _ LU § _ In ® § � l| - - - - - -- 7 - -- � \ \ \ � § � ! k | ) ( - - - - -- - - -- . d Z 'O A fd m d L N m O M N J a W 0 0 3 R oZ z z IIIII�IIIII � Y r L � = a, K Z a N a�� V Q W V Z i. X y X ° ate W ~ LL �aa Q wore -_ W C IL ? � g O ------ Q LL 4 'v 6 2 u3CNb1! 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O N J P3 c� a O z z a r — w w wF z i LL n`aW owo vow - ______ _____________________________ gg _ JR �.______- g 111 tll .L-.£ o I a V Q � II �• mtl o CO) i ¢ Vs S IR 0 a v6pFw /�S(/$OUBM+�N�uwW506/NT / '311 4 Nltld nd WE lH1Z /F /S 131Y0 C; z rr I I CD C I I m I I I I I 1 I I I I I I I I = 1 I N I I I I � I i p _ I I - 1 I i I w I 1 J I i m I I p I I I 1 m z N N w 1 I w¢ I I N I I p 1 I a I I p I I � I 1 a I 1 I I I I I I 1 I I I II r - -- ____ri I - w I I I Y I I LL_ L _ - J I I = O IL I I Q IL N LL U 0 i y r I I LU V I I 1 I I I I i o I I m m W fi 1 o I I I I � I I N � i I � I I z ,CA I I I I Z ° I I I I _ r -- -7 I I u I I I I I r i r r r / r / I r r / I r r r r / I I r I r t r r I I r r r + r / I I I ' 1 I ' 1 - 1 I 1 ' I I 1 r 1 1 I 1 I gp I I I 1 ' i g 1 1 I 1 I I 1 1 B I I a I ltd 6Ff9l flw /f /S 131V0 APPENDIX B OPINION OF PROBABLE COSTS Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1783 -03 0 0 0 0 0 0 0 0 0 0 0 0 000 O o 0 0 0 0 0 0 0 -O 0 0 O 0 O 0 O 0 O 00 0 0 0 00 O O O 0 0 O O 0 O 0 N 0 N W O O W f- 0 0 0 0 0 v 0 0 0 0 0 0 0 0 0 W 1n 0 0 0 0 0 0 0 0 N 0 0 0 0 0 0 0 0 000 0 0 0 0 0 0 0 10 W CM N Of r 91) fG O N fl.� c) W I� Lo O tV f0 N 'Q V O r M N O O cc O IQ N` W O 1- OLr) 00 Lq O O O O N to W) W) O O Of O N w N N a Q sh EH r M V! 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X U Y a a (n m W w W U U z W O Z 2 Z Z a Q Z �z K a N a w p 0 U m (7 0 U a N W > W > w > W > w >> w w >> w a W a O 0 O m -' Q W O K Q' O K N J o 0 0 0 Z w w g a. y U LL Z z 0 0 0 co Z a d d a Z p LL F- m 0 w� w w LU W w w w W w W uj w w.z w O w = a� F w ❑ w a g w w g a co 0 W g K a K K a K U� m m m 0 maw a K m u7 ti U U C) 0 0 0 0 a U m K LL w W F- APPENDIX C INVENTORY AND INSPECTION REPORTS Feasibility Report Bridge 70517 - CR 21 Prior Lake Wagon Bridge Pedestrian and Safety Feasibility City of Prior Lake, MN WSB Project 1783 -03 Mn /DOT Structure Inventory Report Bridge ID: 70517 CSAH 21 over PRIOR LAKE Date: 12/17/2010 t GENERAL + + ROADWAY + + INSPECTION + Agency Br. No. Bridge Match ID (TIS) 1 Deficient Status ADEQ District METRO Maint. Area Roadway O/U Key 1 -ON Sufficiency Rating 72.2 County 70 - SCOTT Route Sys /Nbr CSAH 21 Last Inspection Date 10 -14 -2008 City PRIOR LAKE Roadway Name or Description Inspection Frequency 24 Township CSAH 21 Inspector Name SCOTT Desc. Loc. 1.4 MI NW OF JCT TH 13 Roadway Function MAINLINE Structure A -OPEN + NBI CONDITION RATINGS + Sect., Twp., Range 35 -115N - 22W Roadway Type 2 WAY TRAF Deck 7 Latitude 44d 43m 08.57s Control Section (TH Only) Longitude 93d 26m 09.17s Ref. Point (TH Only) Superstructure 7 Custodian COUNTY Date Opened to Traffic 07 -01 -1992 Substructure 7 Owner COUNTY Detour Length 8 mi. Channel 7 Inspection By SCOTT COUNTY Lanes 4 Lanes ON Bridge Culvert N + NBI APPRAISAL RATINGS + BMU Agreement ADT(YEAR) 14,314 (2008) Structure Evaluation 7 Year Built 1991 HCADT Year Fed Rehab Functional Class. URB /MINOR ART Deck Geometry 4 Year Remodeled + R D WY D I M E N S I O N S + Underclearances N Temp Waterway Adequacy 8 If Divided NB -EB S13-WB Plan Avail. COUNTY Roadway Width 52.0 ft Vertical Clearance Max. Vert. Clear. Approach Alignment 8 + STRUCTURE + + SAFETY FEATURES + Service On HWY;PED Bridge Railing 0- SUBSTANDARD Service Under STREAM Horizontal Clear. 52.0 ft GR Transition N -NOT REQUIRED Main Span Type PRESTR DOUB TEE Lateral Clr. - LtIRt Appr. Guardrail N -NOT REQUIRED Main Span Detail Appr. Surface Width 52.0 ft R Termini N -NOT REQUIRED + IN DEPTH INSP. + Appr. Span Type Roadway Width 52.0 ft Appr. Span Detail Median Width Frac. Critical + MI SC. BRIDGE DATA + Skew Underwater Structure Flared NO Culvert Type Pinned Asbly. Barrel Length Parallel Structure NONE Spec. Feat. + WATERWAY + Number of Spans Field Conn. ID Drainage Area MAIN: 3 APPR: 0 TOTAL: 3 Cantilever ID Main Span Length 40.2 ft Foundations Waterway Opening 99999 sq ft Structure Length 103.4 ft Abut. CONC - FTG PILE Navigation Control NO PRMT REQD Deck Width 68.3 ft Pier CONC - FTG PILE Pier Protection NOT REQUIRED Deck Material PRECAST CONCRETE Historic Status NOT ELIGIBLE Nay. Vert. /Horz. Clr. Wear Surf Type MONOLITHIC CONC On - Off System ON Nay. Vert. Lift Bridge Clear. + PAINT + Wear Surf Install Year MN Scour Code I -LOW RISK Wear Course /Fill Depth 0.41 ft Scour Evaluation Year 1992 Year Painted Pct. Unsound + CAPACITY RAT 1 NGS + Deck Membrane NONE Painted Area Design Load HS25 Deck Protect. N/A Primer Type Deck Install Year Finish Type Operating Rating HS 40.19 + B R I D G E S 1 G N S + Structure Area 7,062 sq ft Inventory Rating HS 26.80 Posted Load NOT REQUIRED Roadway Area 5,382 sq ft Posting Sidewalk Width - UR 6.0 ft 8.0 ft Traffic NOT REQUIRED Rating Date 09 -01 -1992 Curb Height - L/R 0.67 ft 0.67 ft Horizontal NOT REQUIRED Mn /DOT Permit Codes Rail Codes - LIR 02 02 Vertical NOT APPLICABLE A: N B: N C: N 12/17/2010 0 0 Page 1 of 2 Mn /DOT BRIDGE INSPECTION REPORT 300 STRIP SEAL JOINT 2 10-14 -2008 66 LF 66 Inspected by: SCOTT COUNTY 0 N/A BRIDGE 70517 CSAH 21 OVER PRIOR LAKE INSP. DATE: 10 -14 -2008 County: SCOTT Location: 1.4 MI NW OF JCT TH 13 Length: 103.4 It 0 City: PRIOR LAKE Route: CSAH 21 Ref. Pt.: 006 +00.701 Deck Width: 68.3 It Notes: PONTIS element inspection comments - Township: Control Section: Maint. Area: Rdwy. Area / Pct. Unsnd: 5,382 sq It Section: 35 Township: 115N Range: 22W Local Agency Bridge Nbr: Paint Area/ Pct. Unsnd: 2006 Strip seal joint only at east abutment. Span Type: PRESTR DOUB TEE Culvert N/A 2008 west approach some settlement from bit. rdwy. approach slab NBI Deck: 7 Super: 7 Sub: 7 Chan: 7 Culv: N Open, Posted, Closed: OPEN 2008 leakage at both abutments Appraisal Ratings - Approach: 8 Waterway: 8 MN Scour Code: I -LOW RISK Def. Stat: ADEQ Suff. Rate: 72.2 Required Bridge Signs - Load Posting: NOT REQUIRED Traffic: NOT REQUIRED 301 POURED DECK JOINT 2 10 -14 -2008 289 LF 272 Horizontal: NOT REQUIRED Vertical: NOT APPLICABLE 17 NIA STRUCTURE UNIT: 0 N/A 08-22 -2006 289 LF 282 ELEM QTY QTY QTY QTY QTY NBR ELEMENT NAME ENV INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 CS 5 26 TOP OF CONC DECK -EPX 2 10 -14 -2008 7,061 SF 7,061 0 08 -22 -2006 7,061 SF 7,061 0 Notes: PONTIS element inspection comments -2008 longitudinal cracks in east and west bound lanes 0 0 0 0 0 0 300 STRIP SEAL JOINT 2 10-14 -2008 66 LF 66 0 0 N/A NIA Notes: PONTIS element inspection comments - ABOUT 3" SETTLEMENT ON EACH SIDE. 08 -22 -2006 66 LF 66 0 0 N/A N/A Notes: PONTIS element inspection comments - Hairline cracks at CL of SE abutment No settlement seen at either abutment. (2006) 2006 60 type 1 bearings at abutments and pier one, 20 type 1 bearings at 2006 Strip seal joint only at east abutment. pier two, and 20 type 4 bearings at pier 2. 2008 west approach some settlement from bit. rdwy. approach slab 2008 leakage at both abutments 333 RAILING - OTHER 2 10 -14 -2008 3,041 LF 3,002 39 0 301 POURED DECK JOINT 2 10 -14 -2008 289 LF 272 0 17 NIA N/A N/A 08-22 -2006 289 LF 282 0 7 N/A N/A Notes: PONTIS element inspection comments - 4' IS MISSING ON WEST PAVING BLOCK 2006 At west abutment and piers 1 and 2. 20081 feet miss at west paving bl 321 CONC APPROACH SLAB 2 10 -14 -2008 2 EA 2 0 0 0 N/A 08 -22 -2006 2 EA 2 0 0 0 N/A Notes: PONTIS element inspection comments - ABOUT 3" SETTLEMENT ON EACH SIDE. 0 N/A N/A Notes: PONTIS element inspection comments - 1/4" TO 1/2 "SETTLEMENT EACH SIDE IN (2004) No settlement seen at either abutment. (2006) 2006 60 type 1 bearings at abutments and pier one, 20 type 1 bearings at pier one, 20 type 3 bearings at pier two, and 20 type 4 bearings at pier 2. 2008 west approach some settlement from bit. rdwy. approach slab 333 RAILING - OTHER 2 10 -14 -2008 3,041 LF 3,002 39 0 N/A N/A 08 -22 -2006 3,041 LF 3,002 39 0 N/A N/A Notes: PONTIS element inspection comments- HAIRLINE CRACKS IN COMBINATION RAIL. 0 0 0 N/A NUT MISSING 6TH POST IN FORM NORTHEAST CORNER. RAIL IS CRACKED AND SPALLING NORTHEAST POST AT NAMEPLATE.(2004) metal railing is rusting at sliding metal joints. causing rust stains on concrete rail. 2006 minor cracking throughout concrete railing and spalling at NW end post. 2008 no change 374 P/S CONCRETE TEE 2 10 -14 -2008 1,024 LF 1,024 0 0 0 N/A 08 -22 -2006 1,024 LF 1,024 0 0 0 N/A Notes: PONTIS element inspection comments - 22 inch prestressed concrete double tee. 310 ELASTOMERIC BEARING 2 10 -14 -2008 120 EA 120 0 0 N/A N/A 08 -22 -2006 120 EA 120 0 0 N/A N/A Notes: PONTIS element inspection comments - cannot see bearings 2005. 2006 60 type 1 bearings at abutments and pier one, 20 type 1 bearings at pier one, 20 type 3 bearings at pier two, and 20 type 4 bearings at pier 2. 205 CONCRETE COLUMN 2 10 -14 -2008 8 EA 8 0 0 0 N/A 08 -22 -2006 8 EA 8 0 0 0 N/A Notes: PONTIS element inspection comments - < none > 12117/2010 Page 2 of 2 Mn /DOT BRIDGE INSPECTION REPORT Inspected by: SCOTT COUNTY BRIDGE 70517 CSAH 21 OVER PRIOR LAKE INSP. DATE: 10 -14 -2008 STRUCTURE UNIT: 0 ELEM QTY QTY QTY QTY QTY NBR ELEMENT NAME ENV INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 CS 5 215 CONCRETE ABUTMENT 2 10 -14 -2008 138 LF 138 0 0 0 N/A 08 -22 -2006 138 LF 138 0 0 0 N/A Notes: PONTIS element inspection comments - HAIRLINE CRACKS IN EAST ABUTMENT (2004) 2008 n o change 234 CONCRETE CAP 2 10 -14 -2008 138 LF 138 0 0 0 N/A 08-22 -2006 138 LF 138 0 0 0 N/A Notes: PONTIS element inspection comments - < none > 387 CONCRETE WINGWALL 2 10 -14 -2008 4 EA 4 0 0 0 N/A 08 -22 -2006 4 EA 4 0 0 0 N/A Notes: PONTIS element inspection comments - SEVERAL CRACKS IN NE & SE RETAINING WALL. NORTHEAST WINGWALL AND WALL IS CRACKED AND SPALLING (2004)(2006)(2008) 358 CONC DECK CRACKING 2 10 -14 -2008 1 EA 1 0 0 0 N/A 08 -22 -2006 1 EA 1 0 0 0 N/A Notes: PONTIS element inspection comments - CRACKS THE LENGTH OF DECK OVER ALL QUAD TEE JOINTS (2004) (2008) 360 SETTLEMENT 2 10-14 -2008 1 EA 1 0 0 N/A N/A 08 -22 -2006 1 EA 1 0 0 N/A N/A Notes: PONTIS element inspection comments - < none > 964 CRITICAL FINDING 2 10 -14 -2008 1 EA 1 0 N/A N/A N/A 08 -22 -2006 1 EA 1 0 N/A N/A N/A Notes: DO NOT DELETE THIS CRITICAL FINDING SMART FLAG. 985 SLOPES 2 10 -14 -2008 1 EA 0 1 0 N/A N/A 08 -22 -2006 1 EA 0 1 0 N/A N/A Notes: PONTIS element inspection comments - CRACKS IN GROUTED RIPRAP. RIPRAP WASHOUT ON NE CORNER & NW CORNER. RIPRAP WASHOUT INCREASING ON NE CORNER. TREES AND WEEDS GROWING OUT OF GROUTED RIPRAP. 1 1/2' GAP ON WEST SLOPE AND ABUTMENT. 2' GAP ON EAST SLOPE AND ABUTMENT. SETTLEMENT OF SLOPE PROTECTION AND GROUT CRACKING. (2004)(2005)(2006)(2008) 986 CURB & SIDEWALK 2 10-14 -2008 1 EA 0 1 0 N/A N/A 08 -22 -2006 1 EA 0 1 0 N/A N/A Notes: PONTIS element inspection comments - CONCRETE SIDEWALK ON BOTH SIDES OF BRIDGE, FEW CRACKS IN SIDEWALK. BITUMINOUS TRAIL LEADING AWAY FROM BRIDGE ON SOUTH SIDE. SOME CRACKS IN SIDEWALK. 4'X 4' SPALLING IN SIDEWALK SOUTH SIDE OVER EAST PIER. BITUMINOUS WALK IS SETTLED AND CRACKED. (2004)(2005)(2006)(2008) General Notes: PONTIS inspection comments - Base of light, 2nd from SW corner cracked all across, monitor. Bird nests hanging on duct bank north span. 2008 inspectors Grover, Lynch,Fiebelkom Inspector's Signature Reviewer's Signature / Date