Overview: The Iowa Department of Transportation (DOT) is requesting bids for Shoulder Aggregate, 3/4" Class "A" Stone (Rock) both delivered and stockpiled at DOT garages, and rock to the road.
Specifications:
The DOT is requesting bids for Class “A” crushed stone Article 4120.04 or Class “C” gravels Article 4120.03 for which 75% or more of the particles retained on the 3/8 inch (9.5 mm) sieve have at least one fractured face as defined in Materials I.M. 305. Crushed gravel must meet the gradation below. The testing shall be done prior to delivery.
Lines 1-106: Delivered & Stockpiled at Shops
Material shall be delivered to the site and dumped where directed by the District Maintenance Manager or designee. DOT Maintenance forces will construct stockpile. This is the reference to the term “Delivered” under the "Line Items" Tab. No elevators will be required.
Option 1
– Roadside delivery with chain spread or dumps
The contracted
supplier
will be responsible
for dumping material in temporary piles near the specified roadway for the DOT to pick up and place on the roadway shoulder
for
r
outes desig
nated in the solicitation document. The rate of delivery should not exceed the amount the DOT expects to place on the shoulder within 1 day after delivery to the temporary day pile.
If DOT requests chain (rough) spread of product the supplier will furnish and apply granular material directly to road shoulders as specified to address edge rut needs.
Lines 107-175: Rock to Road
Option 2
– Roadside delivery and placed by supplier
Bids for each garage location listed on line items 105-179 are to be inclusive of delivery to any section of road within their specific areas of responsibilities. Routes will be from mile posts to mile posts.
All road weight limits shall be followed. These quantities could change once bids come in as the districts only have so much money allotted for this rock. Bid tab for award will reflect these changes.
Placement needs will vary by location; requirements may be as low as 1 or exceed 8 tons per 100 feet. The DOT frequently uses a spread pattern of 3 feet wide and 2 inches thick. The pattern requested of the bidder may vary but will be determined and provided to the supplier at the time of order.
DOT personnel will prioritize road repairs not to exceed their allotted budget. Once determined, suppliers will be asked to deliver class “A” crushed stone or class “C” gravel to specific roadside locations. Suppliers will be given specific delivery instructions including but not limited to desired tonnage, date, location and dumping instructions.
Throughout the contract period DOT personnel will contact successful bidders to place material orders and provide locations within their areas of responsibilities for delivery. The supplier will have 10 working days after notification to make deliveries.
DOT will provide all necessary traffic control except where indicated on the lines for Manchester/Dyersville, Dyersville, Anamosa/Marion and Independent lines 172-175 garages in district 6.
Suppliers will be required to deliver product to the designated location as specified by DOT personnel. Acceptable types of trucks will be determined between DOT and supplier. This material will not be stockpiled but will be spread or dumped according to DOT’s instructions at each location as needed.
At routes designated in the contract documents the supplier will be responsible for placing the material on the shoulder by use of a shouldering machine furnished and operated by the supplier without dumping on the pavement. Supplier’s equipment must be capable of spreading the granular shoulder materials in a uniform layer of the desired thickness and width in an evenly loose condition. Locate the wheels of the spreader so they do not operate on the 1 foot (0.3 m) width of pavement adjacent to the edge of the shoulder.
Once spread, compact the aggregate using a pneumatic tired roller or a steel vibratory roller with a minimum of four complete coverages of the entire surface, then followed with a minimum of one complete finish coverage using a steel tired roller.
Instructions to Bidders
Attached are Iowa DOT district maps indicating areas of responsibility for each maintenance garage.
All bidding is by milepost as listed on the lines; maps are provided as informational material.
Responders shall furnish any requested information within three (3) working days after notification from the purchasing agent.
Contract Award:
Award will be by line item. It is the intent of the Iowa DOT to award the contract to the responsible bidder whose submitted quotation is the most advantageous to the Iowa DOT, cost and other factors considered. Other factors include, but are not limited to: meeting or exceeding mandatory requirements, proposed staffing, and meeting required time schedule.
The Iowa DOT reserves the right to select the delivery point or points and their geographical locations and the number of delivery points and tonnage of aggregate awarded to any one bidder.
Previous performance will be a factor in determining the amount of lane miles awarded to any one contractor.
Contract start date: January 15, 2023
Contract end date: January 14, 2024
An option to renew for up to three (3) additional years may be offered on stockpile locations.
Materials may be ordered on an "as needed" basis after frost thaws as coordinated with contracted service provider.
Order quantities and delivery instructions will be provided by location ordering product
.
DO NOT ATTEMPT TO DELIVER ESTIMATED QUANTITY PRIOR TO CONTACT FROM DOT GARAGE.
Contracted suppliers must provide contact name and phone number for ordering locations awarded.
Purchase orders will not be issued for products ordered under this proposal.
Field offices will process invoices for payment. Invoices are to be emailed to locations requesting product.
Delivery Requirements
The material shall be delivered to the Iowa DOT destination(s) between 7:30 a.m. – 3:30 p.m. on normal working days Monday through Friday, with a notification of delivery phone call 24 hours prior to delivery.
Delivery Period
Delivery period of each order shall be within ten working days after order has been placed.
If within 20 days the product is not available, the Iowa DOT has the right to purchase the material from another source.
To Join the virtual bid opening click the link below to the teams meeting, or you can join by phone and entering the conference id number followed by the # sign.
Microsoft Teams meeting
Or call in (audio only)
+1 515-817-6093,,708216907# United States, Iowa City
Phone Conference ID: 708 216 907#
Those who join the public bid opening after 1pm may not hear all the responses read aloud but all responses will be posted publicly for viewing as soon as they become available.
