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Updated 8:00 AM EST, April 15, 2008
 Alternate Route Plans Implemented for Roadway Maintenance Events and the Freeway Miles Covered
2004 National Summary
| Metropolitan Areas Surveyed / Returned Survey | Metropolitan Areas with Alternate Route Plans for Roadway Maintenance | Number of Freeway Miles |
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| Covered by Plan | Total | Percent |
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| 106 / 100 | 28 | 951 | 19370 | 5% |
2004 Metropolitan Summary
| Metropolitan Area | State | Agencies Surveyed / Returned Survey | Agencies with Alternate Route Plans for Roadway Maintenance | Number of Freeway Miles |
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| Covered by Plan | Total | Percent |
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| Albany, Schenectady, Troy | NY | 2 / 2 | 1 | N/R* | 142 | N/R* | | Albuquerque | NM | 1 / 1 | 0 | N/R* | 100 | N/R* | | Allentown, Bethlehem, Easton | PA | 2 / 2 | 1 | 26 | 60 | 43% | | Asheville | NC | 1 / 1 | 0 | N/R* | 60 | N/R* | | Atlanta | GA | 1 / 1 | 0 | N/R* | 342 | N/R* | | Austin | TX | 1 / 1 | 0 | N/R* | 97 | N/R* | | Bakersfield | CA | 1 / 1 | 0 | N/R* | 175 | N/R* | | Baltimore | MD | 1 / 1 | 1 | N/R* | 373 | N/R* | | Baton Rouge | LA | 1 / 1 | 0 | N/R* | 31 | N/R* | | Beaumont-Port Arthur | TX | 1 / 1 | 0 | N/R* | 59 | N/R* | | Bellingham | WA | 1 / 1 | 0 | N/R* | 34 | N/R* | | Birmingham | AL | 1 / 1 | 0 | N/R* | 154 | N/R* | | Boise City | ID | 1 / 1 | 1 | 38 | 36 | 100% | | Boston, Lawrence, Salem | MA | 1 / 1 | 0 | N/R* | 394 | N/R* | | Buffalo, Niagara Falls | NY | 2 / 2 | 0 | N/R* | 145 | N/R* | | Charleston | SC | 1 / 0 | 0 | N/R* | 47 | N/R* | | Charlotte, Gastonia, Rock Hill | NC | 2 / 1 | 0 | N/R* | 101 | N/R* | | Chattanooga | TN | 1 / 1 | 0 | N/R* | 70 | N/R* | | Chicago, Gary, Lake County | IL | 4 / 4 | 0 | N/R* | 676 | N/R* | | Cincinnati, Hamilton | OH | 1 / 1 | 1 | N/R* | 234 | N/R* | | Cleveland, Akron, Lorain | OH | 3 / 3 | 0 | N/R* | 279 | N/R* | | Columbia | SC | 1 / 1 | 1 | 30 | 125 | 24% | | Columbus | OH | 1 / 1 | 0 | N/R* | 172 | N/R* | | Dallas, Fort Worth | TX | 2 / 2 | 1 | N/R* | 678 | N/R* | | Dayton, Springfield | OH | 1 / 1 | 0 | N/R* | 154 | N/R* | | Daytona Beach | FL | 1 / 1 | 0 | N/R* | 74 | N/R* | | Denver, Boulder | CO | 1 / 1 | 0 | N/R* | 341 | N/R* | | Des Moines | IA | 1 / 1 | 1 | 30 | 61 | 49% | | Detroit, Ann Arbor | MI | 1 / 1 | 0 | N/R* | 462 | N/R* | | El Paso | TX | 1 / 1 | 1 | 55 | 104 | 53% | | Eugene | OR | 1 / 1 | 0 | N/R* | 61 | N/R* | | Fort Myers | FL | 1 / 1 | 0 | N/R* | 34 | N/R* | | Fort Wayne | IN | 1 / 1 | 0 | N/R* | 62 | N/R* | | Fresno | CA | 1 / 1 | 1 | 50 | 104 | 48% | | Grand Rapids | MI | 1 / 1 | 0 | N/R* | 82 | N/R* | | Greensboro, Winston-Salem, High Point | NC | 2 / 2 | 1 | 40 | 157 | 25% | | Greenville | NC | 1 / 0 | 0 | N/R* | 0 | N/R* | | Greenville, Spartanburg | SC | 1 / 0 | 0 | N/R* | 63 | N/R* | | Hampton Roads | VA | 1 / 1 | 1 | 113 | 161 | 70% | | Harrisburg, Lebanon, Carlisle | PA | 2 / 2 | 0 | N/R* | 112 | N/R* | | Hartford, New Britain, Middletown | CT | 1 / 1 | 0 | N/R* | 191 | N/R* | | Honolulu | HI | 1 / 1 | 0 | N/R* | 77 | N/R* | | Houston, Galveston, Brazoria | TX | 1 / 1 | 0 | N/R* | 577 | N/R* | | Huntsville | AL | 1 / 1 | 0 | N/R* | 21 | N/R* | | Indianapolis | IN | 1 / 1 | 0 | N/R* | 154 | N/R* | | Jackson | MS | 1 / 0 | 0 | N/R* | 128 | N/R* | | Jacksonville | FL | 1 / 1 | 1 | 60 | 160 | 38% | | Janesville-Beloit | WI | 1 / 1 | 1 | 20 | 39 | 51% | | Kansas City | MO | 2 / 2 | 0 | N/R* | 416 | N/R* | | Knoxville | TN | 1 / 1 | 0 | N/R* | 71 | N/R* | | Lancaster | PA | 1 / 0 | 0 | N/R* | 60 | N/R* | | Las Vegas | NV | 1 / 1 | 0 | N/R* | 151 | N/R* | | Little Rock, North Little Rock | AR | 1 / 1 | 1 | N/R* | 115 | N/R* | | Los Angeles, Anaheim, Riverside | CA | 3 / 3 | 1 | N/R* | 1427 | N/R* | | Louisville | KY | 1 / 1 | 0 | N/R* | 141 | N/R* | | McAllen | TX | 1 / 1 | 0 | N/R* | 37 | N/R* | | Memphis | TN | 1 / 1 | 0 | N/R* | 123 | N/R* | | Miami, Fort Lauderdale | FL | 2 / 2 | 0 | N/R* | 228 | N/R* | | Milwaukee, Racine | WI | 1 / 1 | 0 | N/R* | 129 | N/R* | | Minneapolis, St. Paul | MN | 1 / 1 | 1 | N/R* | 346 | N/R* | | Modesto | CA | 1 / 1 | 0 | N/R* | 50 | N/R* | | Montgomery | AL | 1 / 1 | 0 | N/R* | 47 | N/R* | | Nashville | TN | 1 / 1 | 0 | N/R* | 174 | N/R* | | New Haven, Meriden | CT | 1 / 1 | 0 | N/R* | 136 | N/R* | | New London | CT | 1 / 1 | 0 | N/R* | 67 | N/R* | | New Orleans | LA | 2 / 2 | 1 | 24 | 92 | 26% | | New York, Northern New Jersey, Southwestern Connecticut | NY | 11 / 9 | 3 | 60 | 1286 | 5% | | Oklahoma City | OK | 1 / 1 | 0 | N/R* | 160 | N/R* | | Omaha | NE | 1 / 1 | 1 | N/R* | 158 | N/R* | | Orlando | FL | 1 / 1 | 1 | 53 | 147 | 36% | | Philadelphia, Wilmington, Trenton | PA | 6 / 6 | 1 | 70 | 503 | 14% | | Phoenix | AZ | 1 / 1 | 1 | N/R* | 202 | N/R* | | Pittsburgh, Beaver Valley | PA | 2 / 2 | 2 | 182 | 401 | 45% | | Portland, Vancouver | OR | 1 / 1 | 0 | N/R* | 113 | N/R* | | Providence, Pawtucket, Fall River | RI | 1 / 1 | 0 | N/R* | 137 | N/R* | | Provo - Orem | UT | 1 / 1 | 0 | N/R* | 44 | N/R* | | Raleigh-Durham | NC | 1 / 1 | 0 | N/R* | 102 | N/R* | | Richmond, Petersburg | VA | 1 / 1 | 0 | N/R* | 164 | N/R* | | Roanoke | VA | 1 / 1 | 0 | N/R* | 26 | N/R* | | Rochester | NY | 1 / 1 | 0 | N/R* | 109 | N/R* | | Sacramento | CA | 1 / 0 | 0 | N/R* | 217 | N/R* | | Salinas | CA | 1 / 1 | 0 | N/R* | 25 | N/R* | | Salt Lake City, Ogden | UT | 2 / 2 | 0 | N/R* | 139 | N/R* | | San Antonio | TX | 1 / 1 | 0 | N/R* | 231 | N/R* | | San Diego | CA | 1 / 1 | 0 | N/R* | 292 | N/R* | | San Francisco, Oakland, San Jose | CA | 1 / 1 | 0 | N/R* | 427 | N/R* | | San Juan | PR | 1 / 1 | 0 | N/R* | 144 | N/R* | | San Luis Obispo | CA | 1 / 1 | 0 | N/R* | 36 | N/R* | | Santa Barbara | CA | 1 / 1 | 0 | N/R* | 44 | N/R* | | Sarasota-Bradenton | FL | 1 / 1 | 0 | N/R* | 65 | N/R* | | Scranton, Wilkes-Barre | PA | 2 / 2 | 1 | 20 | 61 | 33% | | Seattle, Tacoma | WA | 2 / 2 | 0 | N/R* | 381 | N/R* | | Spokane | WA | 1 / 1 | 0 | N/R* | 51 | N/R* | | Springfield | MA | 1 / 1 | 0 | N/R* | 96 | N/R* | | Springfield(MO) | MO | 1 / 1 | 0 | N/R* | 61 | N/R* | | St. Louis | MO | 2 / 2 | 0 | N/R* | 421 | N/R* | | Stockton | CA | 1 / 1 | 0 | N/R* | 32 | N/R* | | Syracuse | NY | 2 / 2 | 0 | N/R* | 124 | N/R* | | Tampa, St. Petersburg, Clearwater | FL | 1 / 1 | 0 | N/R* | 168 | N/R* | | Toledo | OH | 2 / 2 | 1 | 80 | 130 | 62% | | Tucson | AZ | 1 / 1 | 1 | N/R* | 132 | N/R* | | Tulsa | OK | 1 / 1 | 0 | N/R* | 115 | N/R* | | Washington | DC | 3 / 3 | 1 | N/R* | 370 | N/R* | | West Palm Beach, Boca Raton, Delray | FL | 1 / 1 | 0 | N/R* | 85 | N/R* | | Wichita | KS | 1 / 1 | 0 | N/R* | 95 | N/R* | | Youngstown, Warren | OH | 1 / 1 | 0 | N/R* | 103 | N/R* | | 106 Metropolitan Areas * N/R = No response |
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