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8.4 CO2 Ohio @ Crawford Pavemen CITY OF SALINA REQUEST FOR CITY COMMISSION ACTION DATE TIME 10/25/99 4:00 P.M. AGENDA SECTION: ORIGINATING DEPARTMENT: APPROVED FOR NO. 8 Engineering & General Services AGENDA: ITEM NO. 4 BY: Shawn O'Lea BY: I ITEM Change Order No. 2 on the Ohio Street Pavement Improvements, Project No. 99-1189. BACKGROUND The City Commission approved a contract with Shears Construction, L.P. on August 23, 1999 for asphalt pavement improvements on two miles of Ohio Street from Belmont Boulevard on the south to Greeley Avenue on the north. The project involves 1 ½ inches of asphalt milling and overlay with extensive crack sealing throughout the project. The intersection of Ohio and Crawford was excluded from the project at that time to allow additional time for evaluation of that intersection. The project is approximately seventy five percent complete and considerably ahead of schedule at this time. On May 10, 1999, the City Commission authorized an engineering contract with Bucher, Willis & Ratliff Corporation to analyze pavement repair options and traffic system improvements at the intersection of Ohio Street and Crawford Street. Regarding the pavement repair options, BWR considered short-term issues such as capital costs, traffic disruption, access to adjacent properties and others. They also took into account long-term issues including life expectancy of the pavement, maintenance costs and future rehabilitation. The pavement options considered were full-depth concrete, full depth asphalt, asphalt overlay and ultra-thin whitetopping. "Ultra-thin whitetopping" is a process in which 3-inch concrete pavement is placed over the existing asphalt pavement in a very short period of time. The final recommendation from BWR is to proceed with an asphalt overlay of the intersection as the most cost-effective and practical method at this time. This is certainly not a condemnation of ultra-thin whitetopping. That process will be tried in Salina, however this intersection was not the appropriate candidate at this time. Regarding traffic system improvements at the intersection, a thorough analysis was also conducted by BWR and city staff. The congestion and accident experience at this intersection continues to increase as a function of additional growth in traffic on these two major street corridors. The intersection of these two four-lane arterial streets handle in excess of 41,000 entering vehicles daily. The heavy traffic volumes during the evening commuter peak hour(4:30-5:30 p.m.) currently operate at a level of service "F" on a letter grade scale of A through F. BWR indicates that the construction of double left turn lanes on all legs of the intersection would improve the level of service to "D", however additional lanes are beyond the scope of the current project. An alternative is to eliminate part of the raised curb for the current left turn lane, replacing it with a painted median. That will provide additional room for left-turning vehicles which reduces congestion in the through lanes. The attached Change Order No. 2 on the Ohio Street Pavement Improvement Project includes the CITY OF SALINA REQUEST FOR CITY COMMISSION ACTION DATE TIME 10/25/99 4:00 P.M. AGENDA SECTION: ORIGINATING DEPARTMENT: APPROVED FOR NO. AGENDA: Engineering & General Services ITEM NO. BY: Shawn O'Leary BY: page 2 asphalt milling and overlay of the intersection o£ Ohio and Crawford as well as the partial removal of the raised median. The City Street Division will assist in the removal of the median. If approved, the asphalt overlay process at the intersection will begin immediately following completion of the remainder of improvements on Ohio Street, presumably in early to mid November, 1999. The project will be completed in less than ten days. The intersection will remain open to traffic throughout the project. The 1999 budget allocates $1.3 million in gas tax funds for the street repair program. The original contract amount of $442,995.40 for this project was paid from that account. Change Order No. 1 on the project, approved by the City Commission on October 18, 1999, increased the contract by $39,300 for additional pavement crack sealing. This Change Order No. 2, if approved, will increase the contract by $85,697.60 or 17.8 percent to a total of $567,993.00. ACTION It is recommended that the City Commission approve Change Order No. 2 on the Ohio Street Pavement Improvements, Project No. 99-1189, in the amount of $85,697.60. CHANGE ORDER LOCATION: Ohio Street PROJECT NO. 99-1189 PROJECT: Street Improvements CHANGE ORDER NO. TWO (2) CONTRACTOR Shears Construction, LP, P.O. Box 1095, Salina, Ks. 67402-1095 THIS AGREEMENT, made and entered into this 25 day of October , 1999, by and between the CITY OF SALINA, KANSAS, Owner, and the above named Contractor, modifies the existing contract dated August 24, 1999, under the above subject, project and project number in the following particulars to wit: 1. The specifications and drawings for certain Subdivision Improvements in the City of Salina, Kansas, dated August 24, 1999, are hereby amended in the following particulars only; all other terms and conditions remain unchanged. ITEM DESCRIPTION 14. Add "Machine Milling, 2" " at intersection of Ohio Street and Crawford Street. 15. Add "Asphalt Pavement, 2" " at intersection of Ohio Street and Crawford Street. 16. Add "Traffic Control" at intersection of Ohio Street and Crawford Street. 17. Add "Utility Adjustment" at intersection of Ohio Street and Crawford Street. 18. Add "Crack Repair" at intersection of Ohio Street and Crawford Street. 2. The undersigned proposes to furnish all tools, appliances, equipment, materials, and labor required to complete the construction in a thorough, workmanlike, and satisfactory manner in accordance with the drawings, specifications, and contract documents, for the following prices. CHANGE ORDER PAGE 2 ITEM UNIT NO. DESCRIPTION QUANTITY UNIT PRICE TOTAL 14. Machine Milling, 2"(Inter) 5,748.00 S.Y. $ 4.00 $22.992.00 15. Asphalt Pavement, 2"(Inter) 5,748.00 S.Y. 8.45 48.570.60 16. Traffic Control (Inter) 1.00 L.S. 7,020.00 7,020.00 17. Utility Adjustment (Inter) 6.00 EA. 790.00 4,740.00 18. Crack Repair (Inter) 500.00 L.F. 4.75 2,375.00 CHANGE ORDER TOTAL: $85,697.60 3. Additional time for completion by reason of this change 0 days. 4. Ail other terms and conditions of the contract to remain unchanged. OWNER, FIRST PARTY CONTRACTOR, SECOND PARTY THE CITY OF SALINA, KANSAS SHEARS CONSTRUCTION, L.P. BY: BY: MAYOR/CITY MANAGER (Office or position of signer) Attest: