CCTV PIPE INSPECTION AND EVALUATION RUNWAY 17L-35R

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1 CCTV PIPE INSPECTION AND EVALUATION For RUNWAY 17L-35R At ST. PETERSBURG CLEARWATER INTERNATIONAL AIRPORT February 2011

2 CCTV PIPE INSPECTION AND EVALUATION RUNWAY 17L-35R ST. PETERSBURG CLEARWATER INTERNATIONAL AIRPORT Introduction American Infrastructure Development, Inc. (AID, Inc.) provided Professional Services to URS Corporation (URS) for coordinating the inspection of the existing drainage structures crossing Runway 17L-35R at St. Petersburg Clearwater International Airport (PIE). AID, Inc. procured the services of VacVision Environmental, LLC (VV) to provide CCTV pipe inspections for this project. A total of sixteen reinforced concrete pipes cross Runway 17L-35R, as shown on Exhibit A. Pipes #15 and #16 were constructed in 2005 as part of the runway extension project and were not included in this study. Specifically, the following tasks have been completed under this assignment: 1. Fourteen pipes were CCTV inspected. Four of these pipes required cleaning prior to the inspections. 2. Pipe inspections were videotaped. A report was generated for each pipe identifying the areas of concern such as water or sand infiltration through the joints, the presence of cracks, or pipe breakage at the joints. 3. Repair options were evaluated based on the pipe conditions and site constraints and a cost estimate is provided for these repairs. This brief report provides a description of the findings from the field inspections and recommendations for the repair of these pipes. This assignment does not provide information on the hydraulic capacity of these pipes crossing the runway. The recommended repairs are provided to help the Owner in maintaining their current infrastructure and are not intended to increase or modify the capacity of the airfield drainage system. Recommendations and Prioritizations Table 1 provides a description of the pipes crossing Runway 17L-35R and the recommended repairs. The repairs should meet FDOT Standard Specifications for Road and Bridge Construction, Section 431, Pipe Liner, and Section , Cured-In-Place Pipe Liner. This Table also includes a prioritization numbering which represents the severity of the problems (1 being the worst) and provides a mechanism for the Owner to begin the repairs as funding becomes available. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 2 of 11

3 Table 1 Pipe prioritization and repair recommendation PRIORITY PIPE PIPE PIPE PIPE REPAIR COMMENTS RATING NUMBER TYPE SIZE LENGTH OPTION 2 1 RCP 14 X Liner Pipe should be cleaned and shells scraped prior to liner installation. 2 2 RCP 14 X Liner Pipe should be cleaned and shells scraped prior to liner installation. 2 3 RCP Liner Circumferential crack (not under the runway pavement). 1 4 RCP Liner Most pipes have sand and water infiltration. 3 5 RCP Liner 3 6 RCP Liner 1 7 RCP Liner Two bends in the pipe. Joint opening at one of the bends. Sand deposits should be cleaned prior to liner installation. 1 8 RCP Liner Circumferential crack under the runway pavement. Sand deposits should be cleaned prior to liner installation. 3 9 RCP Liner 3 10 RCP Liner 3 11 RCP Liner 1 12 RCP Liner Concrete blockage should be removed and the remaining portion of the pipe should be cleaned. Pipe outfall should be opened prior to liner installation RCP Liner 1 14 RCP 19 X Liner Roots should be removed, concrete deposits at outfall should be removed, and pipe should be cleaned prior to liner installation. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 3 of 11

4 Repair Options: The owner may consider other repairs options, such as sliplining or grouting of the joints. However, these options are not preferred for this application. Most of the pipes crossing the runway connect to drainage manholes. Sliplining by inserting small pieces of pipes into these structures and grouting the annular space will be difficult, time consuming, and cost prohibitive. In addition, these existing pipes are constructed primarily of 3-ft pipe sections. Grouting the joints in these long pipes will take 3 to 5 times longer than using CIPP. Isolated joint grouting is also not recommended since the water will soon find its way to other joints, requiring further repairs. CIPP process is a very efficient and permanent process that can be accomplished in a short timeframe (potentially one pipe per day once cleaned). Since these pipes cross the primary runway at PIE, a permanent fix or improvement will provide a better solution to the aging structures. Tables 2, 3, and 4 provide approximate construction costs for the recommended repair. The unit price per linear foot is derived from FDOT s Master Pay Item List (updated 2/17/2011) and increased by 40% to take into account costs associated with professional services for bid document preparations, mobilization and night work. An average price of $175 per linear foot is used for estimating purposes. The costs are provided as a planning tool for the Owner to prioritize these repairs based on the funding availability. Actual costs may vary per pipe depending on the level of cleaning and the amount of obstructions in each pipe. Table 2 Priority #1 Pipes Cost Estimates PIPE NUMBER LENGTH UNIT PRICE TOTAL $175 $38, $175 $39, $175 $39, $175 $53, $175 $79,800 TOTAL COST: $250,425 Table 3 Priority #2 Pipes Cost Estimates PIPE NUMBER LENGTH UNIT PRICE TOTAL $175 $148, $175 $88, $175 $40,075 TOTAL COST: $276,675 CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 4 of 11

5 Table 4 Priority #3 Pipes Cost Estimates PIPE NUMBER LENGTH UNIT PRICE TOTAL $175 $36, $175 $37, $175 $37, $175 $38, $175 $35, $175 $69,650 TOTAL COST: $254,975 Pipe Inspections Pipe inspections were performed mostly at night with Runway 17L-35R closed to aircraft movements. The work was conducted on the days shown on Table 5. A remote controlled high resolution camera mounted on a four-wheeled electric vehicle was utilized for this work, as shown on Figure 1. Except for pipes #1 and #2, the vehicle was lowered through the drainage structures within the infield area west of the runway and the inspections were performed in the downstream direction. Pipes were inspected and videotaped along the length of each pipe section and at the joints. These videos are included as part of this report. The following sections provide detailed description of each pipe and the findings from the inspections. Appendix 1 provides the inspection reports and photos for each pipe. Table 5 Pipe Inspection Dates DATE PIPE(S) INSPECTED COMMENTS January 24, , 9 January 25, , 11, 13 January 26, , 7 January 27, , 6, 14 Pipe #3 was cleaned prior to inspections. January 28, , 12 Pipe #12 was cleaned but could not be fully inspected due to concrete obstructions in the pipe. February 14, , 2 Pipes #1 and #2 were dewatered and cleaned prior to inspections. VacVision performed this work during low tide conditions, hence the gap in the inspection dates. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 5 of 11

6 Figure 1 CCTV Pipe Inspections Pipe #1 This pipe is an elliptical concrete pipe (14 X 23 ) and is approximately 846 feet long. It is located approximately 600 feet south of Runway 17L threshold connecting the infield area directly to the bay. The pipe required dewatering and cleaning prior to the inspection. It was inspected from the downstream end during the daytime. Shell build up is present along approximately 200 feet of the downstream portion of the pipe. Water infiltration is present at several joints beginning approximately 330 feet upstream of the outfall structure. Some roots were also noticed along the section of the pipe in the infield area. The pipe does not show any signs of structural damage. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 6 of 11

7 To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 2. Pipe #2 This pipe crosses Runway 17L-35R at approximately 1,500 feet south of Runway 17L threshold and connects the infield area directly to the bay. It is an elliptical concrete pipe (14 X 23 ) and is approximately 506 feet long. This pipe required dewatering and cleaning prior to inspection. It was inspected from the downstream end during nighttime. Minor shell build up is present at the downstream end of the pipe. Water infiltration is only present at 3 or 4 joints along the pipe. One circumferential crack was noticed close to the upstream end of the pipe within the infield area. It cannot be determined if the crack is recent or occurred during the original construction of the pipe. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 2. Pipe #3 This pipe crosses Runway 17L-35R approximately 300 feet south of Taxiway L. It is an 18 diameter concrete pipe with an approximate length of 229 feet. This pipe was inspected at night from the upstream end once it was cleaned. Water infiltration through the joints was present from the beginning of the pipe for approximately 75 feet. One circumferential crack was noticed approximately 5 feet from the beginning of the pipe. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 2. Pipe #4 This pipe crosses Runway 17L-35R approximately 700 feet south of Taxiway L. It is an 18 diameter concrete pipe with an approximate length of 220 feet. This pipe was inspected at night from the upstream end. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 7 of 11

8 Water and sand infiltration through the joints was present at most joints throughout the length of the pipe. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 1. Pipe #5 This pipe crosses Runway 17L-35R approximately 1,000 feet south of Taxiway L. It is an 18 diameter concrete pipe with an approximate length of 211 feet. This pipe was inspected at night from the upstream end. Water and sand infiltration was present at 7 or 8 joints along the length of the pipe. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #6 This pipe crosses Runway 17L-35R immediately north of the intersection with Runway The pipe is a 24 diameter concrete pipe with an approximate length of 222 feet. This pipe was inspected at night from the upstream end. Water and sand infiltration through several joints was noticed within the first 45 feet from the upstream end of the pipe. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #7 This pipe crosses Runway 17L-35R immediately south of the intersection with Runway The upstream inlet structure is located with the pavement at the intersection of the two runways. The pipe is an 18 diameter concrete pipe with an approximate length of 224 feet. The pipe has two slight bends at approximately 17 feet and 23 feet from the upstream end. This pipe was inspected at night from the upstream end. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 8 of 11

9 Water and sand infiltration through several joints was noticed along the length of the pipe. A joint separation was also noticed at one of the bends located 23 feet from the upstream end. The pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 1. Pipe #8 This pipe crosses Runway 17L-35R at approximately 500 feet south of the intersection with Runway The pipe is an 18 diameter concrete pipe with an approximate length of 224 feet. This pipe was inspected at night from the upstream end. Water infiltration is present at several joints within 45 feet from the upstream end. A circumferential crack is noticed at approximately 118 feet from the upstream end and directly under the runway. It cannot be determined if this crack occurred during the initial installation or at a later time. This pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 1. Pipe #9 This pipe crosses Runway 17L-35R at the intersection of Taxiway G and Taxiway F. The pipe is an 18 diameter concrete pipe with an approximate length of 216 feet. This pipe was inspected at night from the upstream end. Minor water and sand infiltration at isolated joints is noticed within the first 25 feet. This pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #10 This pipe crosses Runway 17L-35R at approximately 500 feet south of Taxiway G. The pipe is an 18 diameter concrete pipe with an approximate length of 220 feet. This pipe was inspected at night from the upstream end. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 9 of 11

10 Minor water and sand infiltration at isolated joints is noticed within the first 50 feet. This pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #11 This pipe crosses Runway 17L-35R at approximately 350 feet north of Taxiway M. The pipe is an 18 diameter concrete pipe with an approximate length of 200 feet. This pipe was inspected at night from the upstream end. Water and sand infiltration was noticed at one joint. This pipe does not show any signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #12 This pipe crosses Runway 17L-35R immediately north of the intersection with Runway The pipe is an 18 diameter concrete pipe with an approximate length of 307 feet. This pipe was cleaned and partially inspected at night. The pipe was cleaned but could not be fully inspected due to blockage of the pipe at approximately 21 feet from the upstream end. The downstream end of the pipe was inspected during daytime. This end of the pipe seemed to have been partially blocked during a previous manhole construction project. There is water flowing through the pipe which indicates that the pipe is not fully blocked. There may also be a bend in the pipe based on the visual inspection of the pipe alignment and the location of the downstream manhole structure. It is recommended that this pipe be further inspected and blockages removed to allow for a better assessment of the condition of the crossing. The priority rate for this pipe is set at 1. Pipe #13 This pipe crosses Runway 17L-35R immediately south of the intersection with Runway The pipe is an 18 diameter concrete pipe with an approximate length of 398 feet. This pipe was inspected at night from the upstream end. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 10 of 11

11 Water infiltration was noticed at approximately 7 joints located in the infield area. This pipe does not show signs of structural damage. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform.) The priority rate for this pipe is set at 3. Pipe #14 This pipe crosses Runway 17L-35R at approximately 500 feet south of the intersection with Runway The pipe is an elliptical concrete pipe (19 X 30 ) with an approximate length of 456 feet. This pipe was inspected at night from the upstream end. This pipe has circumferential cracks and broken joints at six locations. There are two broken joints and one circumferential crack under the runway pavement. It is not clear if these cracks occurred at the time of installation or at a later date. These cracks are located at the bottom of the pipes with no signs of stress observed at the top. Roots have also penetrated the joints primarily within the last 200 feet indicating the opening of the joints. As part of the 2005 runway extension, this pipe was apparently extended at the downstream end by approximately 50 feet. Concrete grouting at this junction has reduced the opening which prevented the inspection of the last 50 feet of this pipe. To maintain the structural integrity of the soil and runway pavement section, it is recommended that the pipe be thoroughly cleaned and lined with a cured in place material (similar to the Cured-In-Place Pipe by Insituform. The priority rate for this pipe is set at 1. CCTV Pipe Inspection and Evaluation RW 17L-35R - PIE Page 11 of 11

12 P-11 P-10 P-16 P-15 P-5 P-4 P-3 ST-33 ST-31 ST-29 ST-27 ST-25 ST-23 ST-21 ST-19 ST-17 ST-15 ST-13 ST-12 ST-11 ST-9 ST-7 ST-5 ST-3 P-2 P-1 ST-1 P-14 P-13 P-12 P-9 P-8 P-7 P-6 ST-34 ST-32 ST-28 ST-26 ST-24 ST-22 ST-20 ST-18 ST-16 ST-14 ST-10 ST-8 ST-6 ST-30 ST-4 ST-2 STORM STRUCTURE TABLE STORM STRUCTURE TABLE STORM STRUCTURE TABLE STORM STRUCTURE TABLE STORM STRUCTURE TABLE STR LATTITUDE/LONGITUDE PIPE PIPE LENGTH PIPE SIZE STR LATTITUDE/LONGITUDE PIPE PIPE LENGTH PIPE SIZE STR LATTITUDE/LONGITUDE PIPE PIPE LENGTH PIPE SIZE STR LATTITUDE/LONGITUDE PIPE PIPE LENGTH PIPE SIZE STR LATTITUDE/LONGITUDE PIPE PIPE LENGTH PIPE SIZE ST-1 ST '17.93" N 82 41'28.35" W 27 55'19.25" N 82 41'19.10" W P LF 14"X23" ST-7 ST '49.13" N 82 41'21.85"W 27 54'49.52" N 82 41'19.44"W P LF 18" ST-15 ST '32.91" N 82 41'019.05" W 27 54'33.12" N 82 41'16.57" W P LF 18" ST-21 ST '19.19" N 82 41'16.71" W 27 54'19.57" N 82 41'14.29" W P LF 18" ST-27 ST '4.66" N 82 41'15.04" W 27 54'7.65" N 82 41'12.15" W P LF 18" ST-3 ST '9.26" N 82 41' 26.83" W 27 55'10.01" N 82 41' 21.26"W P LF 14"X23" ST-9 ST '45.70"N 82 41'21.09" W 27 54'45.75" N 82 41'18.74" W P LF 18" ST-17 ST '28.94" N 82 41'18.20" W 27 54'30.02" N 82 41'16.04" W P LF 18" ST-23 ST '15.81" N 82 41'15.90" W 27 54'16.13" N 82 41'13.70" W P LF 18" ST-29 ST '2.43" N 82 41'14.33" W 27 54'3.14" N 82 41'9.31" W P LF 19"x30" ST-5 ST ' 52.51" N 82 41'22.28" W 27 54'53.65"N 82 41'20.04"W P LF 18" ST-13 ST '32.12" N 82 41'19.28 W 27 54'35.34" N 82 41'16.79" W P LF 24" ST-19 ST '24.50" N 82 41'17.45" W 27 54'24.41" N 82 41'15.02" W P LF 18" ST-25 ST '8.14" N 82 41'14.77" W 27 54'10.49" N 82 41'12.61" W P LF 18" ST-31 ST '55.62" N 82 41'14.93" W 27 53'56.28" N 82 41'10.05" W P LF 36" NOTES: 1. LATTITUDE/LONGITUDE LOCATIONS AND PIPE LENGTHS ARE APPROXIMATE. 2. ALL PIPES ARE RCP. ST-33 ST '51.72" N 82 41'14.26" W 27 53'52.39" N 82 41'9.39" W P LF 36" REV. NO DATE R E V I S I O N S : DESCRIPTION: EOR 4511 NORTH HIMES AVE. SUITE 200 TAMPA, FL OFFICE: FAX: MASTER SURFACE WATER MANAGEMENT PLAN ST. PETERSBURG -CLEARWATER INTERNATIONAL AIRPORT JOB NO: DRAWN: DESIGN: CHECKED: DATE: URS RBC RBC MM FEB EXHIBIT A RUNWAY 17L-35R STORMWATER PIPE CROSSINGS

13 APPENDIX 1 PIPE INSPECTION REPORTS

14 Pipe # 1 Structure ST 1 to ST 2 14 X 23 Elliptical RCP (3 Joint Spacing) General Condition: Infiltration through the joints under the runway - Shell build-up at outfall. Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 2 of 37

15 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 3 of 37

16 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 4 of 37

17 Pipe # 2 Structure ST 3 to ST 4 14 X 23 Elliptical RCP 506 (3 Joint Spacing) General Condition: Infiltration at isolated joints - Circumferential crack at one joint Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 5 of 37

18 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 6 of 37

19 Pipe # 3 Structure ST 5 to ST 6 18 Diameter RCP 229 (3 Joint Spacing) General Condition: Infiltration at most joints - Circumferential crack at one joint Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 7 of 37

20 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 8 of 37

21 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 9 of 37

22 Pipe # 4 Structure ST 7 to ST 8 18 Diameter RCP 220 (3 Joint Spacing) General Condition: Infiltration at most joints Sand deposits at most joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 10 of 37

23 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 11 of 37

24 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 12 of 37

25 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 13 of 37

26 Pipe # 5 Structure ST 9 to ST Diameter RCP 211 (3 joint spacing) General Condition: Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 14 of 37

27 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 15 of 37

28 Pipe # 6 Structure ST 13 to ST Diameter RCP 222 (3 Joint Spacing) General Condition: Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 16 of 37

29 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 17 of 37

30 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 18 of 37

31 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 19 of 37

32 Pipe # 7 Structure ST 15 to ST Diameter RCP 224 (3 Joint Spacing) General Condition: Line bends - Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 20 of 37

33 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 21 of 37

34 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 22 of 37

35 Pipe # 8 Structure ST 17 to ST Diameter RCP 224 (3 Joint Spacing) General Condition: Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 23 of 37

36 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 24 of 37

37 Pipe # 9 Structure ST 19 to ST Diameter RCP 216 (3 Joint Spacing) General Condition: Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 25 of 37

38 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 26 of 37

39 Pipe # 10 Structure ST 21 to ST Diameter RCP 220 (3 Joint Spacing) General Condition: Infiltration at isolated joints Sand deposits at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 27 of 37

40 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 28 of 37

41 Pipe # 11 Structure ST 23 to ST Diameter RCP 200 (3 Joint Spacing) General Condition: Sag at one location minor infiltration at joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 29 of 37

42 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 30 of 37

43 Pipe # 12 Structure ST 25 to ST Diameter RCP 307 General Condition: Blockage in pipe at two locations Blockage at outfall 21 was inspected Recommended Repair: Remove obstructions to fully inspect the pipe. Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 31 of 37

44 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 32 of 37

45 Pipe # 13 Structure ST 27 to ST Diameter RCP 398 General Condition Infiltration at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 33 of 37

46 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 34 of 37

47 Pipe # 14 Structure ST 29 to ST X 30 Elliptical RCP 456 General Condition: Pipe cracks at several joints Roots in joints broken at isolated joints Recommended Repair: Install Cured-In-Place Pipe (CIPP) by Insituform. Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 35 of 37

48 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 36 of 37

49 Appendix 1 CCTV Pipe Inspection and Evaluation - RW 17L-35R PIE Page 37 of 37

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