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Interstate 25 History
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filed under:
50th Anniversary,
About CDOT
Interstate Construction Completed I-25 construction was finished in Colorado on Sept. 21, 1969, with the opening of a 21-mile segment south of Walsenburg ( Rugby area). Total length of I-25 in CO: 299 miles Cost: $125 million
Segment
Location/Description
Completion
Denver
11.2 miles, Valley Highway
48 th Ave. to Evans, Fully opened 1958
Pueblo
9.2 miles through Pueblo
Opened July 1, 1959
Colorado Spgs.
12 miles through the city
Opened July 1, 1960
South of Pueblo to Monument
67 miles, south of Pueblo to north of Colorado Springs
Opened by 1961
Denver Northside
N. end of Valley to 58 th , .5 miles
Opened in 1961
Longmont Area
SH 7 to SH 66, 14 miles
Opened in 1961
Trinidad
Elevated portion, approx. 3 mi.
Completed in 1963
Castle Rock to Denver
Approximately 25 miles
Completed in 1963
Denver north
58 th Ave. to SH 7, 14 miles
Completed in 1963
North of Denver
SH 66 to U.S. 34, 14 miles
Completed in 1963
Walsenburg
Walsenburg Bypass
Completed in 1964
North Link
17 miles, N of Wellington ( Buckeye Road ) to Border
Completed Oct. 11, 1966
Colorado City
SH 165 to Pueblo Blvd. , 20 miles
Completed in 1965
Monument Hill
Monument to Larkspur, 12 miles
Completed in 1965
Ft. Collins Area
U.S. 34 to SH 68 (Harmony), 8 mi.
Completed in 1965
Trinidad/Raton Pass
S. edge of Trinidad to Raton Pass at New Mexico Line – 13 mi.
Completed in 1966
Walsenburg to Colorado City
22 miles
Completed in 1968
Larkspur to Castle Rock
9 miles
Completed in 1968
SH 68 to North of Wellington
Harmony Rd. Ft. Collins to Buckeye Road , 23 miles
Completed in 1968; I-25 continuous from Walsenburg to Colorado/Wyoming border
Trinidad to Walsenburg
21 mile segment
Completed in 1969; I-25 in Colorado complete
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Interstate 25
