Colorado State Highway 121

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State Highway 121 marker

State Highway 121
Route information
Maintained by CDOT
Length: 30.425 mi[1] (48.964 km)
Major junctions
South end: Waterton Road near Littleton
  US 6 in Lakewood
US 40 / I‑70 Bus. in Lakewood
I‑70 / I‑76 in Arvada
US 36 in Broomfield
North end: US 287 in Broomfield
Highway system
Colorado State Highways
SH 120 SH 125

State Highway 121 is a 30.425 mile (48.96 km) long state highway in the U.S. state of Colorado.

Route description[edit]

The route, also known as Wadsworth Boulevard, Wadsworth Bypass, and Wadsworth Parkway, starts at a junction with Waterton Road in unincorporated Jefferson County (near Littleton) and ends at the junction of U.S. Route 36, U.S. Route 287, and State Highway 128 in Broomfield at a Trumpet Interchange. State Highway 121 passes through portions of southwest Denver County.

History[edit]

The name Wadsworth comes from Benjamin Franklin Wadsworth, one of the founders and first postmaster of Arvada. In northwest Arvada, Wadsworth Boulevard passes over Hackberry Hill at the site where a landmark hackberry tree, for which the hill was named, stood before it was cut down to make room for the highway in 1937. [2]

Major intersections[edit]

County Location Mile km Destinations Notes
Jefferson   0.00 0.00 Waterton Road Southern terminus
  4.41 7.10 SH 470 Interchange
Lakewood 7.49 12.05 US 285 (Hampden Avenue) Interchange
9.06 14.58 SH 8 west (Morrison Road) Eastern terminus of SH 8
12.44 20.02 US 6 (Sixth Avenue) Interchange
13.59 21.87 US 40 / I‑70 Bus. (Colfax Avenue)
Arvada 16.79 27.02 I‑70 / I‑76 east – Denver, Fort Morgan, Grand Junction Exit 269A on I-70; exit 1A on I-76
City and County of Broomfield 25.82 41.55 SH 128 west (Interlocken Loop)
26.02 41.88 US 36 – Denver, Boulder Interchange
26.42 42.52 US 287 Interchange; northern terminus, carries highway north.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ "Segment list for SH 121". Retrieved 2007-05-12. 
  2. ^ "Jefferson County, Colorado Place Names Directory". Retrieved 2012-03-23.