Highways: state and federal highways
Arterial Highway: Any limited access highway that is part of the federal-aid interstate system, any limited access highway constructed under the supervision of the Colorado Department of Transportation, or any private toll road constructed or operated under the authority of a private toll road company. Arterial highway does not include a city street or local service road or a county road designed for local service and constructed under the supervision of local government.
Collector Highway: A major thoroughfare serving as a corridor or link between municipalities, unincorporated population centers or recreation areas, or industrial centers, and constructed under guidelines and standards established by, or under the supervision of, the Colorado Department of Transportation. Collector highway does not include a city street or local service road or a county road designed for local service and constructed under the supervision of local government
Interchange: The intersection of two or more highways, roads or streets, at least one of which is an arterial highway or toll road where there is direct access to and from the arterial highway or toll road.
1041 Requirements for Site Selection of Arterial Highways, Interchanges and Collector Highways#
A 1041 review is required for the following Highway Related activities:
Site selection of arterial highways and interchanges and collector highways includes determination of a specific corridor or facility location which is made at the conclusion of the corridor location studies in which:
- Construction of an arterial highway, interchange, or collector highway is proposed; or
- Expansion or modification of an existing arterial highway, interchange or collector highway is proposed that would result in either one or both of the following:
- An increase in road capacity by at least one (1) vehicle lane through widening or alternative lane configuration.
- Expansion or modification of an existing interchange or bridge.