2016 UNDERWATER BRIDGE INSPECTION REPORT. CSAH 133 over WHITEFACE RIVER. Date of Inspection: Equipment Used: 06/24/2016. County Highway Agency

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1 2016 UNDERWATER BRIDGE INSPECTION REPORT BRIDGE # CSAH 133 over WHITEFACE RIVER DISTRICT: District 1 COUNTY: St. Louis CITY/TOWNSHIP: MEADOWLANDS STATE: Minnesota Date of Inspection: Equipment Used: 06/24/2016 Owner: County Highway Agency Inspected By: Janulis, Lukas Report Written By: Lukas Janulis Report Reviewed By: Final Report Date:

2 TABLE OF CONTENTS PAGE NUMBER UNDERWATER SUMMARY 3 UNDERWATER INSPECTION 4 UNDERWATER INSPECTION PROCEDURES 6 STRUCTURE INVENTORY 7 ELEMENTS 8 PHOTOGRAPHS 12 BRIDGE UNDERWATER INSPECTION DRAWINGS

3 UNDERWATER INSPECTION REPORT SUMMARY The substructure units inspected below water at Bridge No , Piers 1 and 2, were in good to satisfactory condition with no defects of structural significance. Moderate scaling was observed from 1 foot above the to 4 feet below the water line, with a maximum 1/4 inch penetration. No footing exposure was detected around either pier. A Light accumulation of timber debris was observed around the upstream nose of Pier 1. Riprap has been placed along both abutments since the previous underwater inspection resulting in more stable embankment slopes and minimizing potential for further erosion/undermining. However, a portion of the East Abutment remains undermined for approximately 20 feet. INSPECTION FINDINGS (A)The channel bottom material consisted of sandy silt allowing up to 12 inches of probe rod penetration. (B) Moderate scaling was observed from 1 foot below to 4 feet below the waterline, with 1/8 inch typical penetration, and 1/4 inch maximum penetration. (C) The East Abutment was undermined for a section 20 feet in length, with undermining cavity measuring 14 inch vertical and 18 inch of horizontal penetration. (D) A light accumulation of timber debris consisting of branches extended from the channel bottom up 3 feet with a 5 foot radius located at the upstream nose of Pier 1. RECOMMENDATIONS (A) Reinspect the submerged substructure units at the normal maximum recommended (NBIS) interval of sixty (60) months. Contractor: Contractor Job Number: Collins Engineers, Inc Page 3 of 17

4 UNDERWATER INSPECTION 1. BRIDGE DATA Bridge #: Feature Intersected: Facility Carried: District: County: WHITEFACE RIVER CSAH 133 District St. Louis Bridge Description: The superstructure consists of three spans of steel beams supporting a reinforced concrete deck. The bridge is supported by two reinforced concrete abutments supported by piles and two reinforced concrete hammerhead piers. 2. INSPECTION DATA Professional Engineer/Team Leader: Inspection Diver: Date of Underwater Inspection: Weather Conditions: Underwater Visibility (feet): Waterway Velocity (ft/sec): Lukas Janulis Lukas Janulis 06/24/2016 Sunny, 80 F 2.0 feet 1.0 ft/sec 3. SUBSTRUCTURE INSPECTION DATA Substructure(s) Inspected: Pier 1 and 2. General Shape: The piers consisted of a reinforced concrete hammerhead pier with a single reinforced concrete pier wall. Since the plans were not available, the exact foundation configuration is unknown, but according to the bridge inventory, the piers are founded on footings supported by piles. Maximum Water Depth at Substructure(s) Inspected (feet): 7.9 feet 4. WATERLINE DATUM Water Level Reference: Waterline Elevation (feet): Description: The top of the pier cap at the downstream end of Pier feet The waterline was located approximately 11.1 feet below the reference. 5. NBIS CODING INFORMATION (Minnesota specific codes are used for 92B and 113) Item 60: Substructure: Item 61: Channel and Channel Protection: Item 62: Culvert: Item 92B: Underwater Inspection: Code: Code: Code: Code: 6 5 Y 48 06/2016 Page 4 of 17

5 Item 113: Scour Critical Bridge: Code: L Bridge is scour critical because abutment or pier foundation is rated as unstable due to observed scour at bridge site. Yes X No (Mark your selection with an X) 6. STRUCTURAL ELEMENT CONDITION RATING Conditions ELEM # Element Description Quantity Unit CS1 CS2 CS3 CS4 210 Reinforced Concrete Pier Wall 46 LF Scour 1 EA 1 Page 5 of 17

6 UNDERWATER INSPECTION INSPECTION PROCEDURES The routine underwater inspection of Bridge (CSAH 133 over Whiteface River) was completed on June 24, The underwater inspection was conducted from shore. The inspection was conducted by a team consisting of a Professional Engineer Diver with a valid MnDOT Team Leader certification, a backup diver and dive tender. The inspection utilized commercial dive equipment and techniques in accordance with OSHA regulations. Channel bottom profiles were taken along the upstream and downstream faces of the bridge and around the periphery of substructure units to determine the presence, location and area of scour. The bridge elements inspected consisted of two hammerhead piers. According to the bridge inventory, Piers 1 and 2 are founded on concrete footings supported by piles. Inspection procedures followed FHWA guidance and the MnDOT Bridge and Structure Inspection Program Manual with channel bottom probing to search for foundations. The maximum routine underwater inspection frequency is recommended to remain at 60 months based on those findings and risk factors. Also, inspection procedures should continue to follow the above approach and standard guidance with 100% Level I and 10% Level II intensity efforts. Page 6 of 17

7 Bridge ID: Minnesota Structure Inventory Report CSAH 133 over WHITEFACE RIVER Date: 12/15/ G E N E R A L + + R O A D W A Y + + I N S P E C T I O N + Agency Br. No. 195 Crew Bridge Match ID (TIS) 0 Userkey 109 District 01 County St. Louis Route Sys 04 - CSAH Number 133 Functionally Obsolete City Sect., Twp., Range Main Span Type 4 - Steel Continuous Median Width On Bridge Main Span Design Main Span Detail Appr. Span Type Appr. Span Design Appr. Span Detail Culvert Type Barrel Length Cantilever ID MAIN: 3 Main Span Length Structure Length 01 - Beam Span Skew 25 RIGHT Number of Spans APPR: 0 TOTAL: 64.8 ft. Deck Width (Out-to-Out) 32.2 ft. Deck Material Wear Surf Type Wear Surf Install Year Wear Course/Fill Depth Deck Membrane Deck Rebars Deck Rebars Install Year Structure Area (Out-to-Out) 5506 sq. ft. Roadway Area (Curb-to-Curb) Sidewalk Width 50A. Lt 0.00 Curb Height 0.6 MI W OF JCT CSAH47 Level of Service 1 - MAINLINE N - 19W Roadway Type Latitude 47 4 ' '' Control Section (TH Only) Status Lt 1 - Concrete Cast-in-Place 1 - Monolithic Concrete 0.00 ft. 0 - None + M I S C. Structure Flared Parallel Structure Field Conn. ID Abutment Foundation (Material/Type) Pier Foundation (Material/Type) Historic Status 3 - FTG PILE 1 - CONC 3 - FTG PILE Underwater 60 Pinned Asbly. Spec. Feat ft. Navigation Control Year Painted 5134 sq. ft. Traffic ft. 50B. Rt ft. Rt Painted Area Primer Type 0 - None + B R I D G E Posted Load B R I D G E D A T A No flare 2 - Riveted 5 - Not eligible + P A I N T + ft. Bridge Railing 0 - SUBSTANDARD ft. N - No parallel structure GR Transition Appr. Guardrail GR Termini 1 - CONC Frac. Critical 0 - Not Required 0 - Not Required ft. Horizontal 1 - Object Markers 0.50 ft. Vertical N - Not Applicable + I N Drainage Area (sq. mi.) + W A T E R W A Y + Waterway Opening (sf.) 2250 Pier Protection Unsound Paint % 20 Nav. Clr. (ft.) Finish Type 2-2-way traffic Longitude ' '' Reference Point Custodian Owner 02 - County Highway Agency 02 - County Highway Agency Roadway Name or Description Township MEADOWLANDS CSAH 133 Desc. Loc. BMU Agreement Year Built 1964 MN Year Reconstructed FHWA Year Reconstructed MN Temporary Status Bridge Plan Location Date Opened to Traffic Maint. Area Roadway O/U Key Detour Length 7.0 mi. Lanes Route On Structure On - Off System 1 - ON Roadway Width ft. Legislative District 05B Vertical Clearance ft. Potential ABC 2 - N/A Max. Vert. Clear. ft. Service On 1 - Highway Appr. Surface Width Service Under 3 - COUNTY + S T R U C T U R E + HCADT Functional Class If Divided + R D W Y Horizontal Clear. Lateral Clearance ON 2 UNDER ADT 5 - Waterway Bridge Roadway Width YEAR 2008 Posting VEH: Rating Date 09/25/ SUBSTANDARD 1 - MEETS STANDARDS 1 - MEETS STANDARDS D E P T H I N S P. + Y/N Freq Date 06/24/ No nav. control on Rail Type Lt 37 Rt 37 A N - N/A B N - N/A C N - N/A sq. ft. ADTT 07 - Rural - Major Collector 32.0 ft. S I G N S + ft. ft. ft. ft. Structurally Deficient Sufficiency Rating 48.7 Inspection Date 08/25/2016 Inspection Frequency 12 Inspector Name + N B I Nav. Vert. Lift Bridge Clear. (ft.) Vert. 0.0 Horiz. MN Scour Code L - STBL - LOW RISK Year C A P A C I T Y R A T I N G S + Design Load Operating Rating Janulis, Lukas A - Open C O N D I T I O N Deck 5 Unsound Superstructure 4 Deck % Underclearances Waterway Adequacy 8 ft. ft. Approach Alignment 8 ft. 0 D I M E N S I O N S + NB-EB % SB-WB Substructure Channel 5 Culvert + N B I Structure Evaluation 4 Deck Geometry Other/Unknown 2 - HS TRUCK Inventory Rating 2 - HS TRUCK 16.5 Y N N SEMI: Overweight Permit Codes 6 N R A T I N G S + + S A F E T Y F E A T U R E S + DBL: 11 A P P R A I S A L R A T I N G S Page 7 of 17

8 12/20/2016 Inspector: CO Bridge MINNESOTA BRIDGE INSPECTION REPORT BRIDGE CSAH 133 OVER WHITEFACE RIVER County: St. Louis Location: 0.6 MI W OF JCT CSAH47 City: Route: 04 - CSAH 133 Ref. Pt.: Township: Control Section: MEADOWLANDS Section: 14 Township: 053N Range: 19W Maint. Area: Span Type: 4 - Steel Continuous 2 - Local Agency Bridge Nbr.: 195 List: Stringer/Multi-beam or Girder NBI Deck: 5 Super: 4 Sub: 6 Chan: 5 Culv: N Open, Posted, Closed: A - Open MN Scour Code: L - STBL - LOW RISK Appraisal Ratings - Approach: 8 Waterway: 8 Required Bridge Signs - Load Posting: 0 - Not Required Traffic: 0 - Not Required Horizntal: 1 - Object Markers Vertical: N - Not Applicable Length: ft. Deck Width: 32.2 ft. Rdwy. Area/ Pct. Unsnd: 5134 sq. ft. / 11% Paint Area/ Pct. Unsnd: sq. ft. / 20% Culvert: N/A Postings: Unofficial Structurally Deficient Y Unofficial Functionally Obsolete N Unofficial Sufficiency Rating 48.7 ELEM NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 Reinforced Concrete Deck 12/15/ SF Underwater 08/25/ SF Notes: [2016] Deck spalls patched with concrete reducing amount of water saturation on underside of deck. [2015] Water saturation areas have hairline map cracking. Areas of rust staining on underside of span 1. Possible isolated areas of delamination starting to separate from underside of deck span 1. [2014] Under deck has water saturation and leaching with cracks in all spans Wearing Surfaces Underwater 12/15/ SF /25/ SF Notes: [2016] 82 concrete patches on deck with an area of about 240 sq. ft. 1 area along north area west end of deck that was prepared for patching but concrete never placed. Spalls on ends of deck filled with bituminous during repaving [2015] Estimated that about 11% of top of deck is unsound with delamination and spalls. Some spalls have exposed rebar. Deck cracks are 0.020" with a spacing as little as 2' (span 3). 9' by 5' bituminous patch failed exposing rebar. Delamination is common along some cracks spans 2, 3, and around spalls. [2014] Spalling on ends of deck causing most of steel end protection to break off of deck. 3" to 4" wide gap between bituminous and deck. Rust staining on some cracks. Rebar is exposed in some spalls on deck. [ ] Many potholes and patches on spans 1 and 3. Span 2 has moderate cracks at minor density. [2012] Spalled Concrete near the deck assembly joints. Minor spalls in the western span. Delaminated concrete patch in the eastern span in the WB lane TRANS. CRACKS. MINOR SPALL. Steel Open Girder/Beam 12/15/ LF Underwater 08/25/ LF Notes: [2016] Paint failure on beam ends with flaking rust starting to form on bottom flanges over abutments. [2015] Paint flaking and chalking along top and bottom flanges of interior beams with some areas of rust present. Surface corrosion with paint failure along bottom flange of beams 1 and 5 full length of bridge. Paint failure on beam ends [ ] Facia beams have loss of paint with surface rust heaviest at abutments. Interior beams are in excellent condition except at abutments. [2012] Debris on flanges of beams. Minor corrosion on beams with the most severe deterioration near the supports. Bottom flanges flaking on ends. PAINT PEELING ON CONNECTION PLATES (SIDE ONES ONLY). FASCIA BEAMS HAVE MINOR RUST AND PEELING PAINT ON LOWER FLANGES. BOTTOM FLANGE SLIGHTLY BENT SE Steel Protective Coating Underwater 12/15/ SF /25/ SF Notes: [2016] About 20% of paint has failed throughout beams and diaphragms. Areas of rust staining on paint. Most of paint has little deterioration. Reinforced Concrete Pier Wall 12/15/ LF Underwater Notes: [ ] Minor to moderate scaling at wetted perimeter. [2012] Debris in front of east pier wall. [2012 Underwater] Moderate scale 4' above and below water line with up to 1/4" penetration. 08/25/ LF Page 8 of 17

9 BRIDGE CSAH 133 OVER WHITEFACE RIVER ELEM NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 Reinforced Concrete Abutment 12/15/ LF Underwater 08/25/ LF Notes: [2016] Added 40 LF to abutment quantity to account for wingwalls. [2015] 1/8" vertical crack at center of east abutment. Few vertical cracks with a width of 0.010" on both abutments. Cracking between beams 3 and 4 west abutment has rust staining. Some cracks have efflorescence. Spall on backside of end of SW wing, possibly hit by mower. [2014] Riprap has been added on slopes covering bottom of footing. [ ] B/footing is exposed on E. abutment, piling is visible. Debris on bridge seat. B/footing is exposed on the W. abutment. Wings have no deterioration noted. VERT CRACK IN PARAPET E. END. LEAKING ON W. END. NO EXP. LEFT SW. W. ABUT PUSHED IN APPROX. 1'' ON S, MEASURED 1'' AT ALL CURB PLATES AND 0'' AT SW. SE DIAPH. SPALLED AT EXP. Reinforced Concrete Pier Cap 12/15/ LF Underwater Notes: [ ] Debris on top of pier caps with no notable deficiencies. 08/25/ LF Pourable Joint Seal 12/15/ LF Underwater 08/25/ LF Notes: [ ] Some spalling along joint with little to no loss of sealant. Sealant may be losing adhesion No deterioration noted. For joint fill with sealant along CL of bridge deck Assembly Joint without Seal 12/15/ LF Underwater Notes: [ ] Some spalling on underside of assembly deck joint. [ ] Deck joints leaking onto abutments No additional deterioration noted. 08/25/ LF Movable Bearing 12/15/ EA Underwater 08/25/ EA Notes: [2016] Abutment bearings have flaking rust with section loss. West abutment bearings are maxed out with masonry plates sliding off of sole plate. [ ] No additional deterioration noted. Abut. bearings failing. Rusted w/ section loss. Fixed Bearing 12/15/ EA Underwater Notes: [ ] Rusting [2012]-No deterioration noted. 08/25/ EA Metal Bridge Railing 12/15/ LF Underwater Notes: [2016] Corrosion present on rail posts along top of curbs. [2015] 16' of north rail and 1 post bent outward due to impact. [ ] No additional deterioration noted. N. RAIL DAMAGED, MISSING 1 BOLT. 08/25/ LF Steel Protective Coating Underwater 12/15/ SF /25/ SF Notes: [2016] Minor chalking of protective coating on rail. Galvanizing has failed on rail posts behind curb. Reinforced Concrete Bridge Railing 12/15/ LF Underwater Notes: [2016] End posts have minor scaling Concrete end posts at ends of metal rail. 08/25/ LF Page 9 of 17

10 BRIDGE CSAH 133 OVER WHITEFACE RIVER ELEM NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 Critical Deficiencies or Safety Hazards 12/15/ EA Underwater Notes: [ ] No critical deficiencies or safety hazards found during this inspection. 08/25/ EA Bituminous Approach Roadway 12/15/ EA Underwater 08/25/ EA Notes: [2016] West approach settlement is increasing traffic impact on bridge. [2015] Approaches were repaved in September of Chip seal added to approaches in July of Settlement still present on approaches slightly affecting traffic impact on deck. [2014] 3" to 4" wide gap between bituminous and deck slightly increasing impact on bridge. [ ] Some minor spalling near the bridge joints. Secondary Members (Superstructure) 12/15/ EA Underwater 08/25/ EA Notes: [2016] Paint flaking on end diaphragms with surface corrosion on exposed steel. [ ] Paint starting to flake on some diaphragms with no corrosion present. Concrete cracking above A4 diaphragm. [ ] No deterioration noted. Element represents intermediate and end diaphragms. Concrete Shear Cracking 12/15/ EA Underwater Notes: [2016] No shear cracking present. 08/25/ EA Scour 12/15/ EA Underwater Other Bridge Signing 12/15/ EA Underwater 08/25/ EA Notes: [2016] All signs present with no deterioration. [ ] No load posting signs. Load rated in 2005 finding no posting is required. Delineators in place. [2012] All signs in place. DELINEATORS. REFLECTORS AT G.R. Posted 26/40/40 Slopes & Slope Protection 12/15/ EA Underwater 08/25/ EA Notes: [2016] Settlement in east slope with 5" gap between bottom of footing and ground. [ ] Both slopes have been repaired. [ ] Abutment slopes are failing. The most severe is the East abutment. Fill and riprap needed on both abutment slopes. Washing on slopes under abuts, starting to fail. Guardrail 12/15/ EA Underwater 08/25/ EA Notes: [2016] 2 posts NE next to bridge decaying. Scrapes throughout rail. NW guardrail shape deformed with a small section of w-beam torn. [ ] 7th post from bridge on SW rotted and infested with ants (post broken). [ ] NW railing has been repaired. Flex Beam w/ 1- BCT, 1- ET 2000 & 2 wraps. Post at SE corner rotted. Rail broke NW. Deck & Approach Drainage 12/15/ EA Underwater 08/25/ EA Notes: [2016] Deck has been patched and deck was cleaned. Drains are free of debris. [ ] Sand buildup along gutterlines but drains remain open. No drainage-related slope erosion present. Spalls on deck causing ponding on deck. Page 10 of 17

11 BRIDGE CSAH 133 OVER WHITEFACE RIVER ELEM NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4 Sidewalk, Curb, & Median 12/15/ EA Underwater Notes: [ ] Hairline cracking along face of north curb. [2014] Minor scrapes on curb face from plows. [ ]No additional deterioration noted. SE CORNER CURB BARRIER MISSING END PIECE. 08/25/ EA Protected Species 12/15/ EA Underwater Notes: [2016] Swallow nests present on beams. Bat sleeping span 1 species is unknown. 08/25/ EA General Notes: 58. Deck NBI: 36A. Brdg Railings NBI: 36B. Transitions NBI: 36C. Appr Guardrail NBI: 36D. Appr Guardrail Terminal NBI: 59. Superstructure NBI: 60. Substructure NBI: 61. Channel NBI: 62. Culvert NBI: 71. Waterway Adeq NBI: 72. Appr Roadway Alignment NBI: SLC District 5 Inspected by: [ ] CG, TM : [2014] CG, BH, BT : [2013] BH, JDO : [7/10/2012] Post 2012 Flood Inspection by JRM and RRC from TKDA. Underwater inspection performed by WSB. [2016] 82 concrete patches on deck with an area of about 240 sq. ft. 1 area along north area west end of deck that was prepared for patching but concrete never placed. Spalls on ends of deck filled with bituminous during repaving [2015] 0.020" with a spacing as little as 2'. 9' by 5' bituminous patch failed exposing rebar. Areas of delamination along cracks and spalls. Exposed rebar in some spalls span 1. [2014] Spalling on ends of deck causing most of steel end protection to break off of deck. 3" to 4" wide gap between bituminous and deck. Rust staining on some cracks. Rebar is exposed in some spalls on deck. [2013] Many potholes and patches on spans 1 and 3. Span 2 has moderate cracks at minor density. Under deck has water saturation and leaching with cracks in all spans. Steel bent plate with steel posts. Rail similar to rail code 42. Substandard for all speeds. Transition end post does not meet standards. End post is 1.5' in length. W-beam with wood posts. Traffic barrier type B. ET 2000 Ends and 2 wraps with flared end. [2016] Paint failure on beam ends with flaking rust starting to form on bottom flanges over abutments. [2015] Paint flaking and chalking along top and bottom flanges of interior beams with some areas of rust present. Surface corrosion with paint failure along bottom flange of beams 1 and 5 full length of bridge. [ ] Facia beams have loss of paint with surface rust heaviest at abutments. Interior beams are in excellent condition except at abutments. Bearings at W. abut have slide off masonry plate approx 1 inch. [ ] 1/8" vertical crack at center of east abutment with other cracks having a width of 0.010". Cracking between beams 3 and 4 west abutment have rust staining. [ ] Abutments have minor cracking. Piers have minor to moderate scaling at wetted perimeter. [2016 U/W] Undermining is present at the East Abutment with up to 18 inches of penetration. [ ] Minor deterioration to stream banks with some debris in channel that is not affecting flow. [ ] Water was almost over bridge deck during flooding of Flooding event was greater than 500 year event. [ ] No sight distance issues or speed reduction required. Inventory Notes: Inspector's Signature Reviewer's Signature Page 11 of 17

12 Pictures Photo 1 - Upstream Fascia, Looking Southeast Photo 2 - Downstream Fascia, Looking Northwest Page 12 of 17

13 Pictures Photo 3 - Pier 1, Looking Southeast Photo 4 - Pier 2, Looking West Page 13 of 17

14 Pictures Photo 5 - East Abutment, Looking Northeast Photo 6 - Typical Concrete Condition at Waterline (Pier 2 Shown), Looking West Page 14 of 17

15 Pictures Photo 7 - Undermining at East Abutment, Looking East Page 15 of 17

16 N GENERAL NOTES: 1. Piers 1 and 2 were inspected underwater. 53'-1" 64'-10" 53'-1" 2. At the time of inspection on June 24, 2016, the waterline was located approximately 11.1 feet below the top of the pier cap at the downstream end of Pier 1. Since insufficient bridge elevation information was available a reference elevation of was assumed. Based on the assumed reference the waterline elevation was Shoreline (Typ.) 4 Flow Whiteface River 3. Soundings indicate the water depth at the time of inspection and are measured in feet. 4. Soundings were taken parallel to the bridge at 1/4 point intervals between the substructure units INSPECTION NOTES: The channel bottom material consisted of sandy silt allowing up to 12 inches of probe rod penetration Moderate concrete scaling from 1 foot to 4 feet below the waterline with 1/8 inch typical penetration, and 1/4 inch maximum East Abutment was undermined for a section 20 feet in length, with undermining cavity measuring 14 inch vertical and 18 inch of horizontal penetration Accumulation of timber debris consisting of branches extended from channel bottom up 3 feet with a 5 foot radius located at the upstream nose of the W. Abut Pier 1 Pier 2 E. Abut pier. Legend Sounding Depth from Waterline (6/24/16) Sounding Depth from Waterline (7/25/12) Timber Debris SOUNDING PLAN Note: All soundings are based on 2016 waterline location. MINNESOTA DEPARTMENT OF TRANSPORTATION UNDERWATER BRIDGE INSPECTION STRUCTURE NO OVER THE WHITEFACE RIVER DISTRICT 1, ST. LOUIS COUNTY INSPECTION AND SOUNDING PLAN DRAWN BY: PRH 123 North Wacker Drive DATE: JUNE 24, 2016 Suite 900 CHECKED BY: LJ Chicago, Il (312) SCALE: NTS Page 16 of 17 CODE: FIGURE NO.: 1

17 ~ Brg. West Abut. ~ Pier 1 ~ Pier 2 ~ Brg. East Abut. 53'-1" 64'-10" 53'-1" Shoreline Shoreline W.L. El Channel Bottom on 6/24/16 Channel Bottom on 7/25/ UPSTREAM FASCIA PROFILE ~ Brg. West Abut. ~ Pier 1 ~ Pier 2 ~ Brg. East Abut. 53'-1" 64'-10" 53'-1" Shoreline Shoreline W.L. El Channel Bottom on 6/24/16 Channel Bottom on 7/25/ Note: 20.0 DOWNSTREAM FASCIA PROFILE 20.0 MINNESOTA DEPARTMENT OF TRANSPORTATION UNDERWATER BRIDGE INSPECTION STRUCTURE NO OVER THE WHITEFACE RIVER DISTRICT 1, ST. LOUIS COUNTY Refer to Figure 1 for General Notes. UPSTREAM AND DOWNSTREAM FASCIA PROFILES DRAWN BY: PRH CHECKED BY: LJ 123 North Wacker Drive Suite 900 Chicago, Il (312) DATE: JUNE 24, 2016 SCALE: 1"=20'-0" Page 17 of 17 CODE: FIGURE NO.: 2