1933
Map scale is 3⁄4 in (19 mm)=125 mi (201 km), so we're lucky to see what we can!
- California
 US 101 in LA US 99 in LA US 395 overlap near San Bernadino  US 91 / US 466 in Barstow
- Arizona
 US 466 in Kingman US 89 overlap to Flagstaff US 260 in Holbrook
- New Mexico
 US 666 in Gallup US 85 overlap from Los Lunas to Las Vegas US 366 in Albuquerque US 285 in Santa Fe US 54 overlap from Santa Rosa to Tucumcari
- Texas
 US 87 in Amarillo  US 60 / US 370 possibly in Amarillo US 83 in Shamrock
- Oklahoma
 US 283 in Sayre US 270 overlap from near El Reno to OKC US 81 in El Reno US 77 overlap in OKC US 75 overlap from Sapulpa to Tulsa US 64 in Tulsa  US 59 / US 60 / US 69 overlaps near Vinita
- Kansas
 US-166
- Missouri
 US 71 overlap from Joplin to Carthage  US 60 / US 65 / US 160 at Springfield US 63 at Rolla US 50 west of St. Louis- St. Louis is a bit foggy
- US 40
- US 61
- US 67
- Illinois
 US 36 at Springfield  US 51 / US 150 at Bloomington US 24 south of Pontiac US 52 northwest of Kankakee  US 6 / US 30 in Joliet- Chicago is a bit foggy
- US 45
- US 34
- US 20
- US 41
- US 330?
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1947
- California
US 101 Alt. in Santa Monica- US 101 in Hollywood
 US 6 / US 99 in LA
 US 66 Alt. in Pasadena- US 395 in San Bernadino
- US 466 in Barstow
 US 95 north and south of Needles
- Arizona
 US 93 / US 466 in Kingman- US 89 overlap from Ashfork to Flagstaff
 US 89A in Flagstaff- US 260 in Holbrook
- US 666 overlap from Sanders, Ariz., to Gallup, N.M.
- New Mexico
- US 85 in Albuquerque
- US 285 at Clines Corners
 US 84 overlap from near San Ignacio to Santa Rosa- US 54 overlap from Santa Rosa to Tucumcari
- Texas
 US 60 (overlap) / US 87 / US 287 in Amarillo- US 83 in Shamrock
- Oklahoma
- US 283 overlap in Sayre
 US 183 in Clinton US 281 overlap near Bridgeport- US 270 overlap from near Calumet to OKC
- US 81 in El Reno
- US 77 overlap from OKC to near Edmund
- US 75 overlap from Sapulpa to Tulsa
- US 64 in Tulsa
 US 169 in Tulsa- US 60 overlap from Whiteoak to near Fairland
- US 69 overlap form near Whiteoak to Commerce
- US 59 overlap from Vinita to near Afton
- Kansas
- US-166 overlap from Baxter Springs, Kan., to Joplin, Mo.
- Missouri
- US 71 overlap from Joplin to Carthage
US 71 Alt. in Carthage- US 160 at Springfield
- US 65 at Springfield
- US 63 at Rolla
- US 50 overlap near Villa Ridge
 US 66 Bus. (City US 66) in St. Louis US 61 overlap from City US 66 to US 40
 US 67 Byp. from City US 66 to near Florissant
 US 50 / US 40 Truck in St. Louis- US 40 in St. Louis
US 40 Alt. in St. Louis
US 40 Byp. overlap from St. Louis to Peters, Ill.- US 67 in St. Louis
- Chain of Rocks Bridge
- Illinois
US 66 Bus. (City US 66) / US 67 Alt. near Granite City- US 36 / US 54 in Springfield
- US 51 overlap in Normal
- US 150 in Normal
- US 24 in Chenoa
US 66 Alt.- US 6 near Birds
- US 52 near Joliet
- US 30 in Plainfield
   US 12 / US 20 / US 45 near La Grange US 34 overlap from Brookfield to end
US 30 Alt. in Chicago- US 54 in Chicago
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1960
- California
- Note: This map shows the freeway replacements largely intact in the LA metro area, but sparse in rural CA.
 SR 1 in Santa Monica- US 6 / US 91 / US 99 / US 101 in LA (detail isn't sufficient to see exact jct order)
- US 395 in San Bernadino
- US 91 / US 466 in Barstow
- (Note: map shows a small section of I-15 in place between Victorville and Barstow)
- US 95 north and south of Needles
- Arizona
- Note: My map shows no portion of I-40 open to traffic in Arizona
- US 93 / US 466 in Kingman
- US 89 overlap from Ashfork to Flagstaff
US 89A in Flagstaff- US 260 in Holbrook
- US 666 overlap from Sanders, Ariz., to Gallup, N.M.
- New Mexico
- Note: My map shows I-40 in New Mexico about 40% complete
- US 85 in Albuquerque
- US 285 at Clines Corners
- US 84 overlap from near San Ignacio to Santa Rosa
- US 54 overlap from Santa Rosa to Tucumcari
- Texas
- Note: Map shows I-40 about 40% complete, in Texas, virtually finished east of Amarillo.
- US 60 (overlap) / US 87 / US 287 in Amarillo
- US 83 in Shamrock
- Oklahoma
- Note: Map shows I-44 as complete or under construction the entire length I-40 about 30% complete
- US 283 in Sayre
- US 183 in Clinton
- US 281 overlap near Bridgeport
- US 270 overlap from near Calumet to OKC
- US 81 in El Reno
 I-44 overlap from OKC to Miami- US 75 overlap from Sapulpa to Tulsa
- US 64 in Tulsa
- US 169 in Tulsa
- US 60 in Vinita
- US 69 overlap form near Whiteoak to Commerce
- US 59 overlap from Vinita to near Afton
- Kansas
- US-166 overlap from Baxter Springs, Kan., to Joplin, Mo.
- Missouri
- Note: Map shows I-44 largely complete or under construction east of Springfield
- US 71 overlap from Joplin to Carthage
- US 160 at Springfield
- US 65 at Springfield
- US 63 at Rolla
- US 40 / US 50 / US 61 / US 67 St. Louis area
- Note St. Louis area drawn very congested, not enough detail to confirm US-40A routings etc.
- Illinois
- Note:US-66 mostly intact and very little Interstate Highway construction in IL until near Chicago.
- US 36 / US 54 in Springfield
- US 51 overlap in Normal
- US 150 in Normal
- US 24 in Chenoa
- US 6 near Birds
- US 52 near Joliet
- US 30 in Plainfield
- US 12 / US 20 / US 45 near La Grange
- US 34 overlap from Brookfield to end
- East of here is very congested and difficult to read
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