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| Colorado State Highway 340 | |
|---|---|
| State | CO |
| Type | SH |
| Route | 340 |
| Length mi | 13.341 |
| Established | 1939 |
| Direction a | West |
| Terminus a | Mesa County, Colorado |
| Junction | US 50 in Grand Junction, Colorado |
| Direction b | East |
| Terminus b | US 6 in Whitewater, Colorado |
| Counties | Mesa County |
Colorado State Highway 340 is a short east–west state highway in Mesa County, Colorado connecting western approaches near Grand Junction, Colorado to eastern rural points near Whitewater, Colorado. The route traverses urban fringe, suburban neighborhoods, and agricultural land along the southern bank of the Colorado River, serving as a connector between US 50, local roads, and recreational access points to regional attractions. It supports commuter traffic, freight movements for regional industries, and access to riverfront parks and trail systems.
SH 340 begins near Grand Junction, Colorado at an intersection with US 50, adjacent to commercial districts and transit corridors that link to I-70 and local arterial streets. The highway heads southeast along the southern edge of the Colorado River, passing through suburban neighborhoods near Redlands, Colorado and skirting parks such as Civic Center Park and river access points used by river outfitters and recreation groups. Along the alignment, SH 340 intersects county and municipal streets that provide routes to Mesa Verde National Park-bound freight via SH 141 connectors and freight links to Grand Junction Regional Airport.
Continuing east, the route traverses mixed agricultural zones irrigated from Gunnison River diversions and historic Bureau of Reclamation projects tied to the Colorado River Storage Project. The roadway narrows and becomes more rural near Whitewater, Colorado, where it meets US 6 and provides access to local wineries, orchards, and outdoor recreation areas frequented by visitors to Colorado National Monument and Dominguez-Escalante National Conservation Area.
The corridor that became SH 340 follows historical paths used during Colorado Gold Rush era migrations and later for agricultural development associated with Western Slope, Colorado irrigation improvements. The formal designation of the highway in 1939 corresponded with statewide efforts by the Colorado Department of Transportation to systematize numbered routes that included connectors to US 50 and US 6. Over decades, the route underwent pavement upgrades linked to federal programs administered through the Federal Highway Administration and benefited from regional transportation planning by the Grand Valley MPO.
Significant improvements in the late 20th century aligned with growth in Grand Junction, Colorado and were influenced by interstate freight patterns tied to I-70 and energy sector developments near Rifle, Colorado and Parachute, Colorado. Preservation of river access and mitigation for flood risk drew on expertise from U.S. Army Corps of Engineers and local conservation efforts coordinated with Colorado Parks and Wildlife.
- Western terminus: intersection with US 50 near Grand Junction, Colorado - Junctions with municipal and county roads providing access to Redlands, Colorado, Civic Center Park, and local transit hubs coordinating with Grand Junction Regional Airport - Eastern terminus: junction with US 6 near Whitewater, Colorado and access to routes toward Rifle, Colorado and Glenwood Springs, Colorado
SH 340 carries a mix of commuter traffic between Grand Junction, Colorado suburbs and downtown, freight traffic serving agricultural and energy-industry shipments bound for I-70 and regional rail yards connected to Union Pacific Railroad. Peak volumes correlate with seasonal tourism to Colorado National Monument and river recreation seasons promoted by Visit Grand Junction and regional event calendars such as festivals hosted in Downtown Grand Junction. Traffic management has involved coordination with agencies including the Federal Highway Administration, Colorado Department of Transportation, and the Grand Valley Air Quality Council to address congestion and emissions.
Planned improvements along the corridor emphasize safety, multimodal access, and resilience to flooding associated with the Colorado River. Projects proposed by the Colorado Department of Transportation and the Grand Valley MPO include pavement rehabilitation, shoulder widening for bicycle access promoted by Bike Colorado, intersection upgrades tied to freight movement efficiency advocated by the Western Slope Industrial Council, and enhanced signage coordinating with Colorado Tourism Office initiatives. Funding sources under consideration include state transportation revenue, federal grants from the U.S. Department of Transportation, and regional matching funds coordinated with Mesa County, Colorado.
SH 340 interfaces with primary routes such as US 50, US 6, and provides indirect links to I-70 and SH 141. It supports connectivity for travelers heading to Colorado National Monument, Dominguez-Escalante National Conservation Area, and Grand Mesa National Scenic Byway access points, and integrates with local transit services operated by Grand Valley Transit. The corridor complements freight and tourism flows tied to the Western Slope, Colorado transportation network and regional economic stakeholders including Mesa County Public Works and local chambers of commerce.
Category:Colorado State Highways Category:Transportation in Mesa County, Colorado