Bridge approaches--Maintenance and repair.; Bridges--Design and construction.; Concrete slabs--Maintenance and repair.; Concrete bridges--Floors--Maintenance and repairs.; Settlement (Structures); Maintenance practices.
Crops and climate--Oklahoma--Statistics--Periodicals.;Cattle--Climatic factors--Statistics--Periodicals.;Oklahoma--Climate--Statistics--Periodicals.
issues through 2011; cooperating with the Oklahoma Department of Agriculture, Food and Forestry; a combined contribution with Cooperative Extension Service, USDA Farm Service Agency and Oklahoma Mesonet