Interstate 10

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Interstate 10 (abbreviated I-10 or in Texas IH-10) is the southernmost east-west, coast-to-coast interstate highway in the United States. It stretches from the Pacific Ocean at State Route 1 (Pacific Coast Highway) in Santa Monica, California (map) to Interstate 95 in Jacksonville, Florida (map).

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Major cities

Template:Lengths table |- |CA |242.54<ref name="FHWA log">Federal Highway Administration Route Log and Finder List, Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002</ref> |390.33 |- |AZ |392.33<ref name="FHWA log"/> |631.39 |- |NM |164.27<ref name="FHWA log"/> |264.37 |- |TX |881<ref name="FHWA log"/> |1418 |- |LA |274.42<ref name="FHWA log"/> |441.64 |- |MS |77.19<ref name="FHWA log"/> |124.23 |- |AL |66.31<ref name="FHWA log"/> |106.72 |- |FL |362.26<ref>Florida Department of Transportation, GIS data</ref> |583.00 |- | |2460 |3959 |} Image:Interstate10 map.png Bolded cities are officially-designated control cities for signs.

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Route description

Image:Christophercolumbustranscontinentalhighway.jpg Between its west terminus in Santa Monica, California and the East Los Angeles Interchange it is known as the Santa Monica Freeway. The segment between the East Los Angeles Interchange and the city of San Bernardino, California (53 miles, or 92 km long) is known as the San Bernardino Freeway. Other names exist for the freeway. For example, a sign near the western terminus of the highway announces it as the "Christopher Columbus Transcontinental Highway". It is known to a considerably lesser degree as the "Veterans' Memorial Highway" and is listed as a Blue Star Highway. Many times it is just simply referred to as "the 10."

A stretch in Palm Springs is signed as the "Sonny Bono Memorial Freeway" as a tribute to the late entertainer who served both as mayor and as a United States Congressman. A second stretch a few miles east in Indio is signed as the "Doctor June McCarroll Memorial Freeway". As a nurse with the Southern Pacific Railroad in the 1920s, Dr. McCarroll was alarmed at the number of head-on traffic collisions on a nearby stretch of then-new U.S. Highway 99, today known as both California State Route 111 and California State Route 86 as well as Interstate 10 which replaced it between Indio and Los Angeles. She is credited with painting a white stripe down the middle of 99 near Coachella in order to separate the two lanes of traffic — the first ever pavement marking of its kind.

In Arizona, as well as Jacksonville, the highway is designated the "Pearl Harbor Memorial Highway." The portion through Phoenix is named the "Papago Freeway." This designation starts at the initial junction/southern terminus of I-17 and runs westward out to AZ 101, a loop route whose current western terminus is Interstate 10.

From the southern terminus of Interstate 17 to the junction with the US 60 freeway, the Superstition, the freeway is signed as the Maricopa Freeway. This name holds true as well for I-17 from its southern terminus to its second junction with I-10, north of McDowell Road. From U.S. 60 south to Interstate 8 (eastern terminus in Casa Grande), the freeway is not signed with a name. ADOT has maps that show it as the Maricopa Freeway, while AAA and other sources show it as the Pima Freeway. The latter's name is used on a stretch of Loop 101 from U.S. 60 to Interstate 17.

A small portion of I-10 from Loop 1604 to downtown in San Antonio, Texas is known as the Northwest Expressway or the McDermott Freeway.

In Houston, from the western suburb of Katy to downtown, I-10 is known as the "Katy Freeway." This section is currently being widened to 26 lanes (HOV, mainlanes, access roads, and a mid-freeway tollway included) and will be one of the widest freeways in the world. The section east of downtown Houston is officially known as the "East Freeway," although it is widely known by locals as the "Baytown East Freeway" due to a marketing push by Baytown, the eastern center city of the Greater Houston Area.

In southeastern Louisiana, the final stretch of I-10 through the Mississippi state line is known as the "Stephen Ambrose Memorial Highway." The "Atchafalaya Swamp Freeway" marks the 18.2 mile elevated stretch of I-10 over the Atchafalaya River and surrounding swamp.

Image:Interstate 10 eastbound in Mobile, AL.jpg

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Alternate routes

I-310 and I-510 are parts of what was slated to be I-410 and act as a southern bypass of New Orleans, Louisiana. I-610 is a shortcut from the eastern to western portion of New Orleans avoiding the I-10's detour into New Orleans' Central Business District.

Interstate 12 between Baton Rouge, Louisiana and I-59 near the Louisiana/Mississippi state line is actually a shorter route than I-10 between the two adjoining points, since I-10 dips to the south to go through New Orleans. Those traveling to or from Baton Rouge who do not wish to detour into New Orleans should leave I-10 and take I-12 for its entire route until it again meets with I-10.

In the aftermath of Hurricane Katrina, the Twin Span, a portion of I-10 between New Orleans and Slidell spanning the eastern end of Lake Pontchartrain, was severely damaged, causing a break in I-10 at that point. Unlike the Escambia Bay Bridge (east of Pensacola, Florida) which is a major artery, Interstate 12 is available to bypass New Orleans. The section between Baton Rouge and New Orleans was functioning as an I-x10 spur route as a result. On October 14, 2005 at 3:00 PM, the eastbound span was reopened to two way traffic. On January 6, 2006 at 6:00 AM, both lanes of the westbound span were reopened to traffic using temporary metal trusses and road panels to replace damaged sections. [1] This restored all four lanes of the I-10 twin spans for normal traffic with reduced speed limits on both sides. Oversized and overweight traffic is prohibited until a new permanent six lane span is built to replace the two temporarily repaired spans. In Mississippi, the twin spans crossing the Pascagoula River were opened on October 1 and are now operational, making that state's portion fully functional.

I-610 is also the designation for the "loop" circling Houston, Texas.

I-410 is also the desgination for the "loop" circling San Antonio, Texas.

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Intersections with other interstates

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Spur routes

Image:Interstate 10 eastbound over Lake Charles (LA).jpg

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Notes

  • In January 1994, the I-10 overpasses over La Cienega and Venice Boulevards in Los Angeles, California collapsed during the Northridge earthquake. This section of freeway bears one of the heaviest traffic loads in California, and was reopened just 66 days later after emergency around-the-clock construction.
  • The interstate's route through Phoenix was hotly contested in the 1960s and 1970s. A plan proposed by the Arizona Department of Transportation involved city block-sized 270-degree "helicoils" that would connect motorists to freeway lanes 100 feet (30 m) in the air, but voters killed it in 1973 as a result of opposition from the Arizona Republic and a growing nationwide anti-freeway sentiment. Ten years later, ADOT unveiled the current below grade plans. Despite local opposition, Interstate 10 was finally completed on August 10, 1990.
  • I-610 in New Orleans and the aforementioned I-12 make I-10 one of only two interstates in the country to have two "bypasses" that are shorter than the "main" route. The other is I-64, which also has two "bypasses" shorter than the "main" route in the Hampton Roads area of southeastern Virginia.
  • I-10 is one of the very few interstates that have at-grade intersections (roads that intersect it at a 90 degree angle, as opposed to an overpass with on and off ramps). These are private access roads (mostly from large ranches) which occur over a limited stretch in western Texas.
  • I-210 was planned as a bypass of Mobile, Alabama, but it was never completed. The highway was eventually renamed I-165.
  • As of November, 2005, I-210 in California does not actually connect to either I-10 or any other I-10 spur route (the 210 does connect however with Interstate 5 in Sylmar and Interstate 15 in Rancho Cucamonga). This is expected to change when construction of a ten-mile connector is completed in western San Bernadino county, and SR-30 and SR-210 are re-designated as I-210. The construction is schedule for completion on or before 2010. Before 2002, the I-210 did connect with the I-10, the 57 and 71 freeways at the Kellogg Interchange; today the stretch from the current 210 to the I-10 is now signed as the 57 Freeway.
  • Mile marker 880 (and the corresponding exit number) near Orange, Texas are the highest numbered mile marker and exit on the interstate highway system, or for that matter, on any freeway in North America.
  • El Paso, Texas (on the Texas-New Mexico border) is 785 miles from the western terminus of Interstate 10, making it closer to Los Angeles than it is to Orange, Texas, approximately 880 miles away. Likewise, Orange, Texas on the Texas-Louisiana border is 789 miles from the eastern terminus of Interstate 10.
  • A three-year construction project is currently underway on Interstate 10 between Causeway Blvd. and the 17th Street Canal in Metairie, Louisiana. The $68.9 million project will add new lanes in both direction and improve the exit and entrance ramps at Causeway and Bonnabel Blvd. The state has recently completed a widening project between Causeway and Clearview Pkwy.


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State law

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California

Legal Definition of Route 10: California Streets and Highways Code, Chapter 2, Article 3, Section 310 Template:CAScenicAlt

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References

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External links

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California

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Arizona

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