Author: ayres

Best Management Practices for Stormwater Runoff Facilities: Detention vs. Retention

April showers bring more than May flowers. Snow melt and springtime rains also bring stormwater runoff pains. Why is stormwater runoff a problem? Stormwater runoff impacts two areas: water quantity and water quality. When vegetative surface cover is replaced with streets and buildings, the rate of stormwater runoff, which starts as precipitation (rain, sleet, and… Read More »

WLIA Recognizes Derringer for Outstanding Contribution

The Wisconsin Land Information Association has awarded its 2019 Outstanding Contribution Award to Adam Derringer, GISP. Derringer is a project manager in our aerial mapping group. The Outstanding Contribution Award is given to an individual or organization that has made a substantial contribution to WLIA activities or the Wisconsin Land Information Program. Derringer has been… Read More »

Battling Bridge Scour With Research, Inspections, And Training

Some of the most important foundational elements of a bridge are its least visible – the abutments, piers, piles, and footings submerged under the waterline. That’s where bridge inspectors look for scour – the erosion of soil surrounding a bridge foundation (piers and abutments). Bridge scour occurs when fast-moving water around a bridge removes sediment… Read More »