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. . . . . . . . . . . . . . . )'. . . \1 North St. Vrain & St. Vrain Creeks Floodplain Update Town of Lyons North St. Vrain & St. Vrain Creeks Floodplain Update Town of Lyons Longmont's only way of travel to the airport is south of Longmont across the St. Vrain bridge, which is intact, then west on the Nelson Road and north to the airport. Left Hand Creek, where waters were rushing uncontrolled, had taken out all irrigation headgates along the stream bed and water was running rampant over pasture and farmland southwest of Longmont and west of Niwot this morning. The bridge across the St. Vrain on the airport road, just south of Ninth Avenue, appeared to survive the overnight downpour, but about noon as a tree stump caught in midstream and changed the course of the water, the north approach began to wash and shortly thereafter the approach began to wash and shortly thereafter the approach began to crumble. Up the North St. Vrain canyon County road crews reported, the bridge on the old road near the power plant was out completely, and probably will have to be rebuilt in its entirety. The Burlington railroad track to Lyons was rendered useless when the St. Vrain spilled over its banks and washed away the railroad bed in the section east of Lyons. More than 12 inches of water threatened to close West North Avenue just beyond the Hover Road. The bridge north of Batchelder School was out, as was the one into Niwot, west of Highway 287. At Crane Hollow, west of Hygiene, the bridge was gone, and the road closed. The South Sunset Drive bridge, over the St. Vrain, also was closed to traffic, with a 20 foot cut across the highway on the south approach. The bridge was gone, also at the west side of McCall Lake northwest of Hygiene, and the north end of the old iron bride, east of Longmont Filter Plant, was cut through by St. Vrain River waters. Supply of water to the section south and east of Longmont was out early Sunday when high waters of the St. Vrain twisted the supply line where it crosses the river a mile south of the city. Longmont Times-Call Wednesday, June 8, 1949 1957 FLOOD --- ........,..-: Longman! Boy Recognized As Hero Of Flood Johnny Lopez, 11 year oid Longmont boy, was recognized today by Longmont police officers as the hero of the week.end floods. Johnny, who told officers 'the water was getting high in the house,' at 120 Pratt Street, donned his fathe(s hip boots and carried three youngsters on his back to safety shortly before midnight Saturday. The home from which he rescued the Children, Lilllie and Jimmie Vigil and Cresencio Arguello, as flooded with water during the first inundation of the southem part of Longmont Saturday. The boy's father is employed in the mountains. His mother was attending the midnight movies. Longmont Times-Call Thursday, May 9,1957 Rain Floods Many Longmont Homes, Roads And Bridges Rain flooded Longmont in a deluge throughout Wednesday night and into the moming hours today, leaving washed out bridges, cut away roads and fills, flooded basements, collapsed ditch fills, and pouring well over four inches of moisture for 18 hours... St. Vrain Creek east of Lyons, 1957. Victims of worst damage were bridges throughout Boulder County and on over into Weld County to the east. Closed when the St. Vrain continued to cut relentlessly into the approach at its north side was the bridge on the Hover Road, south of the Third Avenue. By 8 a.m. waters had chewed through t. he biacktop surface, and was threatening to make the cut across the highway a complete one. Floodplain Information Report 19 K:\35600\004IFLOODPLAIN INFORMATION REPORT.doc June 1998 Floodplain Information Report 18 K:\356001004\FLOODPLAIN INFORMATION REPORT.doc June 1998