Title
CONSIDERATION AND AWARDING OF BID 1617-11A FOR THE PURCHASE OF PORTLAND CEMENT CONCRETE FOR THE STREETS AND STORMWATER DIVISIONS.
SECTION 1
A - CLASS A CONCRETE LESS THAN 5 CUBIC YARDS
B - CLASS A CONCRETE 5 CUBIC YARDS OR GREATER
C - CLASS A CONCRETE WITH ONE PERCENT CALCIUM CHLORIDE
D - CLASS A CONCRETE WITH TWO PERCENT CALCIUM CHLORIDE
SECTION 2
A - HIGH EARLY STRENGTH CONCRETE LESS THAN 5 CUBIC YARDS
B - HIGH EARLY STRENGTH CONCRETE 5 CUBIC YARDS OR GREATER
SECTION 3
A - FAST-TRACK CONCRETE LESS THAN 5 CUBIC YARDS
B - FAST-TRACK CONCRETE 5 CUBIC YARDS OR GREATER
SECTION 4
A - 5-SACK GROUT MIX LESS THAN 5 CUBIC YARDS
B - 5-SACK GROUT MIX 5 CUBIC YARDS OR GREATER
SECTION 5
A - FLOWABLE FILL LESS THAN 5 CUBIC YARDS
B - FLOWABLE FILL 5 CUBIC YARDS OR GREATER
Body
BACKGROUND: The City of Norman Street and Storm Water Maintenance Programs utilize on a frequent basis the following types of Portland Cement Concrete:
1. Class A Concrete is used in pavement slabs, sidewalks, retaining walls, culverts, and all areas where reinforced concrete is needed. Calcium is used as an accelerating add mixture to increase the strength of the concrete more quickly during curing. It is used in cold weather application; however, it is not an anti-freezing agent.
2. High Early Strength (H.E.S.) Concrete is used for driveway and pavement replacement.
3. Fast Track Concrete is used for emergency panel replacement in high traffic areas and the pounds per square inch (PSI) are 3000 on an 8 hour strength test.
4. Grout Mix is used with riprap, for bedding drainage pipe and stabilizing plastic Subgrade.
5. Flowable Fill is used as a liquid concrete mix in bedding and backfilling culvert pipe and storm sewers where 100% compaction is required.
Quantities of each material purchased annually will vary depending on individual project scopes for scheduled projects and unscheduled repairs and maintenance activities. A total of 1,351 cubic yards of Portland Cement Concrete were purchased in FYE 2016.
DISCUSSION: Bid information was sent to five (5) vendors and Bid 1617-11A was opened on September 29, 2016, with three (3) bids received for Portland Cement Concrete. The price of concrete materials has increased an average of 7.5% over the 2016 bid price reportedly because of increased manufacturing and delivery costs. Funding for Portland Cement Concrete is provided in several operation and maintenance accounts in the General Fund and in the Force Drainage account in the Capital Fund. If approved, the purchase contract for the materials will be effective through October 31, 2017.
Funding for the materials is available in Account Numbers:
Street Division
Street/Sidewalk Materials (010-5021-431.32-15) $ 61,685
Concrete Materials (010-5021-431.33-01) $ 61,500
Storm Water Division
Street/Sidewalk Materials (010-5022-431.32-15) $ 26,414
Capital Improvement Projects FYE 2017
Force Account Drainage (050-9906-451.63-01) $ 40,000
RECOMMENDATION: Staff recommends BID-1617-11A be awarded to the low bidder as shown on the Bid Tabulation. We further recommend that the bid also be awarded to the alternate bidder and tertiary bidder so that the material will be available when the primary bidder cannot deliver it.