Following the approval of the final construction plan, a separate cost estimate shall be prepared for the improvements and shall be provided to DelDOT for review. For internal subdivision street cost estimates, follow the security determination chart in the construction agreement for subdivision streets (see online content housed at http://devcoord.deldot.gov/). Each item of construction shall be listed in accordance with DelDOT's Standard Specifications. The method of measurement for each item shall be in accordance with the Standard Specifications and a current unit price shall be supplied for each item.
Guidance on calculation of quantities and cost estimates can be found in the Doing Business section of DelDOT's website, within the Design Resource Center in the Cost Estimating & Project Timing subsection.
The itemized construction cost estimate shall be broken down to provide sufficient detail to allow DelDOT to establish the accuracy and completeness of the estimate. Each material shall be accounted for as a separate item in the estimate as illustrated in Figure 6.3-a.
DelDOT, as part of the review, shall approve all the cost estimates. These estimates shall be used to determine the security required for each part of construction.
Figure 6.3-a Itemized Cost Estimate Example
Item No. | Item Description | Quantity | Unit Cost | Total Cost |
701021 | Integral Portland Cement Concrete Curb & Gutter, Type 2 | 15,000 l.f. | $20.00 per l.f. | $300,000.00 |
401648 | Superpave, Type B Hot-Mix, 160 Gyrations, Pg. 64-22 | 2,500 tons | $75.00 per ton | $187,500.00 |
2 Del. Admin. Code § 6.3
15 DE Reg. 551 (10/01/11)
16 DE Reg. 1199 (5/1/2013)
18 DE Reg. 240 (9/1/2014)
18 DE Reg. 709 (3/1/2015)
19 DE Reg. 938 (4/1/2016) (Final)