Colorado Highways:
Other Auxiliary Routes

These are marked highways in Colorado that are other forms auxiliary routes: Truck, Bypass, Old, etc. Some of these routes are marked with state route markers but are not part of the state highway system.

Colored Table Format

White

State-owned

Pink

Not part of state highway system

To
13
Rifle

Length: 0.6mi
S End: Jct US 6/SH 13 at Railroad Ave/1st St. in Rifle
N End: Jct SH 13 north of downtown Rifle

Roadway Names: Railroad Avenue

Notes: This route is not state maintained.

Guide:
After coming north from I-70 Exit 90, SH 13 meets US 6 on the south side of downtown. SH 13 turns west along US 6/1st St. then comes north on a state-maintained bypass to the west of downtown. At the US 6 intersection, northbound SH 13 truck traffic is told to turn left to use the bypass while straight ahead via Railroad Ave. through downtown is marked as "To SH 13 Meeker". The intent of course is to get truck traffic out of downtown while still advising cars they can go through downtown. Southbound all through traffic is directed to use the bypass.

Photo Gallery:

  • Through Traffic Has Two Ways to SH 13. Signage on northbound SH 13 approaching US 6. Trucks are told to turn left on US 6 to use the bypass west of Rifle, while other traffic can continue straight ahead on Railroad Avenue through downtown. (July 2005)

History:
Bypass opened by 1985.

Main SH 13 listing



Truck
50
Montrose

Length: 1.3mi
W End: Jct US 50 at Townsend Ave./San Juan Ave. northwest of downtown Montrose
E End: Jct US 50 at Main St./San Juna Ave. northeast of downtown Montrose

Roadway Names: San Juan Ave.

Notes: This route is not state maintained.

Guide:
US 50 passes through Montrose by coming southeast on Townsend Ave. then turning northeast on Main St. An "Alt Truck 50" is marked along San Juan Ave., a nice four-lane arterial street. San Juan Ave. passes north of downtown hooking up with US 50 on either side of it.

Main US 50 listing



Truck
50
Lamar

Length: 0.5mi
W End: Jct US 50/287 at Main St./Maple St. north of downtown Lamar
E End: Jct US 50/385 at Olive St./2nd St. east of downtown Lamar

Roadway Names: Maple Street and 2nd Street

Notes: This route is not state maintained.

Guide:
US 50 passes through Lamar by coming south on Main St. then turning east on Olive St. An "Alt Truck 50" is marked in Lamar by turning east on Maple St. then south of 2nd St., passing northeast of downtown and hooking up with US 50 on either side of it. Thanks to Steve Riner for the info.

Photo Gallery:
  • Truck Route US 50-287. Westbound on US 50-385 in Lamar approaching 2nd Street. Here two signs direct truckers onto US 50's truck bypass. The signs here include US 287 since US 50 picks up US 287 heading north out of town. Photo by Steve Riner. (July 2005)

OLD
133
Bowie

Length*: 3.92mi
W End: Jct SH 133 west of Bowie
E End: Jct SH 133 between Bowie and Somerset

Notes:
It is unknown to me how this route is marked out in the field. The CDOT route log does not call this route anything in particular, instead calling it "SH 133B". (Note: B in this case means it's the second section of SH 133. SH 133A is the main part of SH 133 from Hotchkiss to Carbondale.) So actually I don't know even if "old" is the right thing to call it. But barring anything else that's what I'll call it for now.

Annual Average Daily Traffic (2004): 3100

Guide:
SH 133 has a bypass which passes to the south of the mining enclave of Bowie. In fact, SH 133 for a short while is on the south bank of the Gunnison River North Fork. The bypass takes SH 133 around a fairly windy, narrow section of road with several railroad crossings, leaving that duty to the "old" route.

History:
The bypass route does not show up on most maps, but it was built in 1991. For some reason CDOT didn't put the old route through Bowie on the state payroll until 2002.

Main SH 133 listing

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Page created 1 August 2005
Last updated 21 August 2005

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