The October 1998 Flood of the Upper Guadalupe River System, Central Texas

The October 1998 flood on the upper Guadalupe River system was produced by a 24-hour precipitation amount of 483 mm at one station, over 380 mm at several other stations, and up to 590 mm over five days, precipitation amounts greater than the 100-year storm as prescribed in Weather Bureau Technical Papers 40 (1961) and 49 (1964). This study uses slope-area discharge estimates and published discharge and precipitation data to analyze flow characteristics of the three major branches of the Guadalupe River on the Edwards Plateau. The main channel of the Guadalupe has a single large flood-control structure at Canyon Dam and five flood dams on the tributary Comal River. On the upper San Marcos River there are five detention dams that regulate 80% of its drainage. The Blanco River, which has no structural controls, generated a peak discharge of 2,970 m3/s from a 1,067 km2 basin. Downstream of Canyon Dam, the Guadalupe River generated a peak discharge greater than 3,000 m3/s from an area of 223 km2. The event exceeded the capacity of both the Comal River and San Marcos flood-control projects and produced spills that inundated areas greater than the 100-year floodplain defined by the Federal Emergency Management Agency.

Evolution of the Riparian forest corridor in a large Mediterranean river system

The well-documented re-colonisation of the French large river basins of Loire and Rhone by European otter and beaver allowed the analysis of explanatory factors and threats to species movement in the river corridor. To what extent anthropogenic disturbance of the riparian zone influences the corridor functioning is a central question in the understanding of ecological networks and the definition of restoration goals for river networks. The generalist or specialist nature of target species might be determining for the responses to habitat quality and barriers in the riparian corridor. Detailed datasets of land use, human stressors and hydro-morphological characteristics of river segments for the entire river basins allowed identifying the habitat requirements of the two species for the riparian zone. The identified critical factors were entered in a network analysis based on the ecological niche factor approach. Significant responses to riparian corridor quality for forest cover, alterations of channel straightening and urbanisation and infrastructure in the riparian zone are observed for both species, so they may well serve as indicators for corridor functioning. The hypothesis for generalists being less sensitive to human disturbance was withdrawn, since the otter as generalist species responded strongest to hydro-morphological alterations and human presence in general. The beaver responded the strongest to the physical environment as expected for this specialist species. The difference in responses for generalist and specialist species is clearly present and the two species have a strong complementary indicator value. The interpretation of the network analysis outcomes stresses the need for an estimation of ecological requirements of more species in the evaluation of riparian corridor functioning and in conservation planning.

Studies of the pollution of the Tennessee River system,

Mode of access: Internet.

Outlet works for Taylorsville Lake, Salt River, Kentucky : hydraulic model investigation : final report /

Cover title.

The Canadian handbook and tourist's guide, giving a description of Canadian lake and river scenery and places of historical interest, with the best spots for fishing and shooting;

"A catalogue of the animals of British North America: Zoological": p. 189-190; "Ornithological": p. 190-196.

The Canadian handbook and tourist's guide; giving a description of Canadian lake and river scenery and places of historical interest with the best spots for fishing and shooting.

"A catalogue of the animals of British North America": p. [189]-196.

Transportation lines on the Mississippi River system and the Gulf intercoastal waterway.

"Compiled 1968- under the supervision of the Division Engineer, United States. Army Engineer Division Lower Mississippi Valley."

Bridges over the navigable waters of the United States : Gulf Coast & Mississippi River system /

Mode of access: Internet.

The tragedy of the seas; or, Sorrow on the ocean, lake, and river, from shipwreck, plague, fire and famine ...

Half-title, illus.: The tragedy of the shipwrecked.

American scenery; or, Land, lake, and river illustrations of transatlantic nature.

Added title-pages, engraved.

Power resources of hydroelectric projects with hydraulic operations independent of the Columbia River system, 1968-69 and 2010.

Cover title.

Various authorizations to units of the national park system and an addition to the wild and scenic river system : hearing before the Subcommittee on Public Lands, Reserved Water, and Resource Conservation of the Committee on Energy and Natural Resources, United States Senate, Ninety-ninth Congress, second session ....

Shipping list no.: 86-432-P (pt. 2).

A history of navigation on the Tennessee river system; an interpretation of the economic influence of this river system on the Tennessee vally. Message from the President of the United States transmitting a survey entitled "A history of navigation on the Tennessee river and its tributaries" ...

Referred to the Committee on military affairs and ordered printed with illustrations May 19, 1937.