Colorado State Highway 257

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State Highway 257

SH 257 highlighted in red
Route information
Maintained by CDOT
Length18.478 mi[1] (29.737 km)
Major junctions
South end SH 60 in Milliken
Major intersections
North end SH 14 in Severance
CountryUnited States
Highway system
  • Colorado State Highway System
SH 239 SH 263

State Highway 257 (SH 257) is an 18.478-mile (29.737 km) state highway in the Front Range in Weld County, Colorado, United States, that connects Colorado State Highway 60 (SH 60) in Milliken with Colorado State Highway 14 (SH 14) on the northestern corner of Severance.

Route description

SH 257 begins at a junction with SH 60 and County Road 21 in northwest of central Milliken, a town in central Weld County. It then heads northward, crosses the Big Thompson River, a tributary of the South Platte River then enters Greeley.

The snow-capped peaks of the Front Range, March 2005. Also visible is a bike path near SH 257 in Windsor.

At Greeley, SH 257 has two interchanges: one with U.S. Route 34 (US 34)[2] and one with U.S. Route 34 Business (US 34 Bus.). Because the junction with US 34 Bus. is so close to its terminus, the two interchanges are just 0.3 miles (0.48 km) apart.[3] Both are diamond interchanges, but only the US 34 intersection has complete access.[3]

SH 257 then heads northward, and begins to curve northwest[4] over the Cache la Poudre River and into Windsor. It abruptly turns west and begins a concurrency with intersects Colorado State Highway 392 (SH 392) along Main Street. About one mile (1.6 km) later, SH 257 turns back northward at 7th Street and ends its concurrency with SH 392. SH then heads north to SH 14, where it terminates on the town limits of northwestern Severance.


The route was established in 1939 with several differences. The route went north to Windsor from Milliken, then turning west to Colorado State Highway 185 (SH 185). SH 185 was then deleted and replaced with Interstate 25 (I‑25), and SH 257 was readjusted so that it went north to SH 14. The route was paved by 1954. A spur south of Windsor was eliminated a year later. The interchanges at US 24 and US 34 Bus. were built in 1998.[5]

In November 2009, a new traffic signal was installed at the intersection with Garden Drive in Windsor. The construction cost about $350,000.[6]


Because of congestion around the US 34 and US 34 Bus. interchanges, a bus rapid transit system has been planned to be built in Greeley.[3]

Major intersections

The entire route is in Weld County.

CR 21 south (North Quentine Avene) – CR 42
Contunation south from southern terminus

SH 60 east – Greeley, US 85

SH 60 west – Johnstown, I-25
Southern terminus
US 34 east – Greeley, Fort Morgan

US 34 west – I-25, Loveland
Diamond interchange

US 34 Bus. east (West 10th Street) – Greeley
Access to US 34 Bus. eastbound only
SH 392 east (Main Street) – Lucerne
Southern end of SH 392 concurrency
SH 392 west (Main Street) – I-25, US 287
Northern end of SH 392 concurrency
SH 14 east – Ault, Sterling

SH 14 west – I-25, Fort Collins
Northern terminus

CR 17 north
Contunation north from northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also


  1. ^ Colorado Department of Transportation. "Segment list for SH 257". Retrieved 2010-04-03.[permanent dead link]
  2. ^ Colorado Department of Transportation. "Interchange Information for Highway 257". Retrieved 2010-04-05.[permanent dead link]
  3. ^ a b c Colorado Department of Transportation. "US 34 and SH 257 BRT Station DEIS Evaluation" (PDF). Retrieved 2010-04-05.
  4. ^ The United States (Map). National Geographic. October 2006.
  5. ^ Salek, Matthew E. (2010-01-30). "Colorado Routes 234-266". Retrieved April 3, 2010.
  6. ^ Colorado Department of Transportation. "State Highway 257 at Garden Drive in Windsor - CDOT". Retrieved 2010-04-05.

External links

Media related to Colorado State Highway 257 at Wikimedia Commons