Okla. Stat. tit. 69, § 69-1101: Letting contracts – Advertisement for bids – Contract

extension.

A. All contracts for construction work upon the state highway

system shall be let and awarded pursuant to the provisions of the

Public Competitive Bidding Act of 1974. If the project advertised

pursuant to the provisions of the Public Competitive Bidding Act of

1974 is for the construction of more than eight (8) miles of road,

and is not a surface treatment only project, said advertisement

shall provide for bids on sections of the road no longer than eight

(8) miles, as well as bids on the project as a whole. If the

project advertised pursuant to the provisions of the Public

Competitive Bidding Act of 1974 is a surface treatment only project

of more than twenty (20) miles of road, the advertisement shall

provide for bids on sections of the road no longer than twenty (20)

miles, as well as bids on the project as a whole.

B. The Department may extend a contract no more than twenty-

five percent (25%) of the length and extent of the original project.

The price for the extension work shall not be greater than the

contract unit basis.