61 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2010-04-16 10:14:42
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62 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2007-12-06 14:55:49
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63 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2004-06-10 11:05:52
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64 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 1999-10-26 21:20:10
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65 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2006-11-06 10:09:45
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66 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 1999-11-05 20:59:48
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67 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2001-11-06 16:18:24
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68 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2004-06-10 11:06:22
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69 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2005-11-03 12:58:18
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70 | Add to Reading ListSource URL: www.fhwa.dot.govLanguage: English - Date: 2005-11-03 13:02:10
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