Flagpole installation acrossColorado

Flagpoles in Colorado

Wind is only half of Colorado. Out on the plains the figure barely moves and the ground under the pole decides the job; at the foothill edge the number climbs fast and the address decides.

Wind here. Colorado is the one state we work in where a national map is only a starting point. The mountains and the whole foothill edge are drawn on Eder's wind map as a special wind region — the striped part of the map where terrain makes a printed band meaningless, so the local authority sets the figure. East of that line it is settled and modest. Denver, Aurora, Fort Collins, Pueblo and Grand Junction all sit in Eder's 90 mph zone, and what costs money out there is the hole rather than the shaft. West of it the numbers climb quickly. Colorado Springs and El Paso County come to about 110 mph on Eder's basis, and Boulder about 120 mph east of Broadway and about 130 mph west of it. Eder rates its Hurricane series to 150 mph with the flag flying, but along that edge the pole and the footing are engineered for the address rather than chosen from a chart.

• The plains and the metro floor — Eder's 90 mph zone from Denver and Aurora out to the Kansas line, and it hardly moves across all of that. Standard wall covers most of it. The money goes into the hole instead, because the swelling clay under the basin asks for more depth than the wind does.
• The foothill edge — From Golden and Lakewood north through Boulder to the mouth of the Poudre, the map stops printing a band and the jurisdiction sets the figure. On Eder's basis Boulder comes to about 120 mph east of Broadway and about 130 mph on the west side of town, so on this edge pole, footing and flag are settled as one thing for one address, and nothing comes off a height chart.
• The Pikes Peak region and the south — About 110 mph on Eder's basis across Colorado Springs and El Paso County, where the county sets its own figure and open exposure is assumed everywhere, so no shaft gets credit for shelter from trees or nearby buildings. Pueblo, an hour south, drops back to Eder's 90 mph zone and is the easiest sizing on the southern Front Range.
• The mountains and the Western Slope — Valley floors from Glenwood Springs to Durango size close to the Grand Junction figure; the passes and the ridgelines above them do not, and those are looked up one address at a time. Sun and ground decide most of this work. A mill finish chalks fast at altitude, and shale and irrigated orchard soil both want the footing thought about before the pole is.

Flying the Colorado flag? We sell it, sewn to the state's own design specification and sized to sit under the national flag on your pole. See the Colorado flag →

Need taller than 80 ft? We supply steel flagpoles from 100 to 150 ft, made in the USA, for car dealerships, truck stops and other big sites across Colorado. 100–150 ft flagpoles in Colorado →