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HomeMy WebLinkAboutOES 55-02 68 REPORT TO THE FINANCE & OPERATIONS COMMITTEE Report Number: OES 55-02 Date: November 11, 2002 From: Richard W. Holborn, P.Eng. Division Head, Municipal Property & Engineering Subject: Municipal Structures Improvement Priority Program Recommendation: 1. That Report OES 55-02 regarding the City's bridges and culvert structures needs be received; and 2. That staff continue to have the system of bridges and culvert structures inspected and appraised regularly in accordance with the Ontario Structure Inspection Manual, and indentify maintenance, repair and replacement needs through the annual Capital budget process. Executive Summary: Not Applicable Financial Implications: For the next ten year period, the rehabilitation and replacement needs are estimated at $11,212,000. In order to address the needs, a Capital Forecast of planned maintenance, repair and replacement is required. Staff recommends that the deck condition surveys be performed on four bridges at an estimated cost of $40,000, subject to budget approval in 2003 to confirm repair recommendations. Background: The City is responsible for ensuring that bridges and culvert structures on the City road system are kept safe and in good repair. This has to be done through the performance of regular bridge inspections (every two years) in accordance with the Ontario Structure Inspection Manual. Municipalities are also responsible for passing load limit bylaws on bridges in accordance with the Highway Traffic Act, requiring two professional engineer's stamps, indicating load posting and duration. Report OES 55-02 Date: November 11 , 2002 6:J Subject: Municipal Structures Improvement Priority Program Page 2 Totten Sims Hubicki Associates (TSH) was retained by the City in 2002 to re-inspect all forty one bridge and fifteen culvert structures ( spans of 3.0 metres or greater) on the City road system and prioritize the maintenance, repair and replacement works for these structures as an update to the 2000 inspection program. Attachments 1 and 2 to this report illustrates the number of bridges and culverts within the system, their age of construction and their rehabilitation needs in dollars. It is evident that the City's bridges that exceed sixty years of age, and culverts that exceed twenty years of age are in need of rehabilitation or replacement. Based on the report "Municipal Structures Improvement Priority Program 2002" prepared by TSH, a summary of the total structure rehabilitation and replacement needs was compiled. For the ten year period, the rehabilitation and replacement needs are estimated to be $11,212,000 for the existing City structure system. Of this total cost, $9,198,000 is for structure Now needs, $1,992,000 for the 1-5 Year needs and $22,000 for the 6-10 Year needs. There are seven bridges and five culverts that are recommended for replacement, typically due to insufficient deck width or due to condition. Four of these bridges are posted with load limits through a municipal by-law. Thirty bridges and four culverts require rehabilitation work, of which three culverts require ongoing monitoring. The report identifies six bridges requiring further engineering investigations, typically deck condition surveys. A program to further evaluate and prioritize needs is being proposed as a budget line item under Damaged and Failing Infrastructure category for 2003 Capital Budget. Staff have identified four bridges which require a Deck Condition Survey for further engineering investigations to confirm the visual repair, rehabilitation or replacement recommendations of the structure. The cost for the field work and structural analysis is approximately $10,000 for each bridge. Based on the information received City staff will be able to complete a Capital forecast and budget to address the needs of the municipal structures. Attachments: 1. 2. Bridges - Figure 1 Culverts - Figure 2 Report OES 55-02 Date: November 11 , 2002 70 Subject: Municipal Structures Improvement Priority Program Page 3 C' Prepared By: Darrell B. Selsky, CET., CM Supervisor, Municipal Wor .-;' Copy: Chief Administrative Officer Recommended for the consideration of Pickering City Council """ tn \U OJ} ~ .- '-t 12 ç;Q <:.,....¡ 0 '-t \U ~ 8 Z 20 16 4 0 Pre 1940 City of Pickering Bridges $7,000 --- 0 0 0 $6,000 Ó ~ -- $5,000 ~ \U \U Z $4,000 ~ 0 .- ~ $3 , 000 .~ - .- ...0 CI:S $2,000 ~ ~ \U $1,000 ~ .- '-t ~ $0 1940 - 1949 1950 - 1959 1960 - 1969 1970 - 1979 1980 - 1989 1990 - 1999 2000 - 2009 Year of Bridge Construction . Number of Bridges. Rehabilitation Needs Figure No.1 ~ ~ 2 ~ m Z 1-[ g. \) 0 ::x:: ~~ rrr (J) 0\ <J) i () ~ c.fJ ~ f-I a.> ;;.- - :;:j 6 U 4-1 0 f-I a.> 4 -S :;:j z 10 8 2 0 Pre 1940 City of Pickering Culverts 1940 - 1949 1950 - 1959 1960 - 1969 1970 - 1979 1980 - 1989 1990 - 1999 2000 - 2009 Year of Construction . Number of Culverts. Rehabilitation Needs $1,400 ..-.. 0 0 0 $1,200 ,.-j -EI} '-' c.fJ $1,000 t) 0 U $800 d 0 .- ~ ~ ~ $600 ~ .- ..0 ~ ..s::: $400 ~ 1:: $200 ~ - ~ U $0 Figure No.2 5 I_a ~ " 0 ::;0 -I +t ~ (ì'1 (j) (Jl tn I 0 '}.J