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The Interstate Highway System was authorized by the Federal-Aid Highway Act of 1956 - popularly known as the National Interstate and Defense Highways Act of 1956 - on June 29

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15y ago

In January 7 of 1955 The Snooper Bridge in California

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Q: When was the interstate highway built?
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Related questions

Why is Winnipeg built on a river?

Because rivers were the Interstate highway system.


What are the major highways of California?

The major highways are highway 50 highway 99 and highway 101 As well as Interstate 5, Interstate 40, Interstate 15, Interstate 8, and Interstate 80.


Is I-25 an interstate highway?

it is an interstate


When was the last Us interstate highway built?

The last interstate highway was completed in 1993 in Los Angeles. The Century Freeway, Interstate 105, was completed after 37 years of construction. The route connects Los Angeles International Airport with Interstates 405, 110, 710, and 605.


What interstate highway crosses Tennessee from east to west?

The best way to travel from Nashville Tennessee to Knoxville Tennessee is by Interstate 40.


Which interstate highway most closely parallels the Platte River?

Interstate Highway 80.


How many miles of interstate?

According to the US Department of Transportation Federal Highway Administration, the total length of the Interstate Highway System was 46,876 miles as of 2006. However, this number is constantly changing as more highways are being built or upgraded.


What state does not have a interstate?

Alaska does not have an interstate highway as an interstate highway requires 4 lane divided road connected at the very minimum state. Alaska is separated from the 48 other states. Thus can not have an interstate highway. Alaska has state highways and it has national scenic routes but are not able to have an interstate highway.


Why is an interstate called that?

An interstate highway is one that runs across the US, normally across several states (hence inter-state). The US Interstate Highway System is the system of federally-built roadways that began construction in the 1950s, originally as a way to improve the flow of essential military material.


What US Interstate Highway runs through Helena Montana?

The US Interstate Highway that runs through Helena, Montana is Interstate 15.


What is the major highway in Tennessee?

Interstate 40, Interstate 75, Interstate 65, Interstate 81, Interstate 55...


What is the Major Highway of Virginia?

Interstate 64 and Interstate 77.