For the purpose of this part, an emergency shall be deemed to exist when emergency repair work as provided for in 668.105(i) is necessary or when a major element or segment of the highway system has failed and the situation is such that competitive bidding is not possible or is impractical because immediate action is necessary to:
(1) Minimize the extent of the damage,
(2) Protect remaining facilities, or
(3) Restore essential travel.
23 CFR § 635.203
The following definitions shall apply for the purpose of this subpart: