Tenney Locks Lighting Info

July 31, 2006



Donald Sanford
Midwest Outdoor Lighting Solutions
1211 Garfield Street
Madison, WI 53711

Dear Mr. Sanford:

Enclosed is a response to your letters of June 18th and July 5th from our Tenney Park Lock consultant.

As you can see he has addressed your concerns. The lighting requirements, aesthetics, costs, boater safety and neighborhood issues were all seriously considered before selections were made.

Although we did not find any major changes that should be implemented, there is some additional information that will clear up any of the outstanding issues:

• Lumen output from the new fixture lamps will diminish over time. This isn’t a straight-line graph. The system is designed to provide the desired illumination at 70% of the lamps initial output and may reach that within a few years. The metal halide lamps should last for about ten-thousand hours at which time the lumens will be at about one half of their original intensity.

• It was discovered after an early morning (12:10 AM) inspection that the light timing was not working properly. The electrician/consultant is notified and this will be corrected as soon as possible. The intention is to only leave the lights on for one half hour after the locks are closed. This would be adjusted seasonally.

• The fixtures are classified as semi-cutoff which brings most of the light to the areas needed. To further reduce lateral glare directional shields will be added to deflect the light away from the road and the neighborhood to the north.

This will conclude our review of lighting at Tenney Park Locks. We again want to thank you for your input. We are always open to such recommendations and considered them as we reviewed this project and will keep them in mind as we develop future plans.

Sincerely,

DANE COUNTY DEPARTMENT OF PUBLIC WORKS, HIGHWAY & TRANSPORTATION



John Schraufnagel
Assistant Director of Public Works

Enclosure