Unit bid analysis

The Unit Bid Analysis provides a good starting point for determining bid item costs. Each project is different and there are many factors to consider to develop an accurate letting estimate using historical bid prices. Some of these factors include:

• Geographical context (urban/rural)
• Quantity - generally the unit price for large quantities of a given material will be less than for small quantities
• Availability
• Scheduling
• Site constraints
• Bidding environment

Materials unit price history report

The materials unit price history "graph" report has been discontinued.
Access the searchable database or use the Unit Bid Analysis tool quick help guide (PDF 156KB)

To ensure you use current bid data, new projects are added to the database at award of contract. Award typically occurs within one week of bid opening.

All queries ran against the database may either be printed as a report or saved in excel format.

Note: All query results are returned by ad date.

WSDOT estimators

For in depth analysis of bid data, please use the Bid Tabs Pro (Oman Systems) application. This application is level playing field and is available to all WSDOT employees. For installation, contact your Region IT representative or Headquarters IT Help Desk.

Features

Queries can be by contractor, quantity, county, bid letting dates, and many others. This data is mostly used as a cost estimating source.

“FIND” - limit your searches to only one word at a time. Multiple word searches will return false results.

Once a project has been awarded, the basic project information is recorded in a document called "State Highway Contracts".

This document contains all contracts from 4000 to 8000 (XLS 696KB) and details project identifiers, description of the work done and awarded bid information.

Standard items

Research standard items and descriptions that may be part of a contract.

Current standard items

Standard Item Table (XLSX 56KB)
 

Standard Item Information

Item use description (PDF 65KB)

Standard units of measure (PDF 91KB)

See the Standard Specifications and Standard Plans for guidance concerning the use of these items in WSDOT projects.

Starter estimates

The estimates available here have been submitted by each Region as good "typical" examples of a project type.

Each example is comprised of standard & non-standard bid items that may be contained in a typical estimate for the type of project each of these examples represent.

These estimates are presented here for you to use as starter estimate templates. Examples available for project types:

• Guardrail
• Signals (new)
• Structures / Bridges
• Safety
• Signing
• BST
• Fish Passage
• Paving

View or copy the types of contracts for different types of projects (XLSX 811KB)