Design - Project Development - Unit Bid Analysis

The Unit Bid Analysis (UBA) contains the bid history for Standard Bid Items used in WSDOT projects.

This Bid History data includes a listing of projects in which a bid item was used, the Low, Second and Third bidder information for those projects, as well as the quantity and measurement data.

The Unit Bid Analysis provides a good starting point for determining Bid Item costs.  
The Unit Bid Analysis information provided here is a good place to start, but each project is different and there are many factors that need to be considered to develop an accurate letting estimate using historical bid prices. Some of these factors include: geographical location, i.e. 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 and 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 156 kb)  

To ensure available Bid Data is current, 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.

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

When using the “FIND” feature while viewing these documents, please limit your searches to only one word at a time. Multiple word searches will return false results. 


Kari Beardslee
PS&E Support Engineer

Tomi Hume-Pontius , CVS
PS&E Engineer