So many manholes, so little time

Three ways to raise assets to grade as quickly, economically, and permanently as possible.

6 MIN READ
By

tourt@batavianewyork.com

Next page: EXPANDABLE-METAL PIVOTED TURNBUCKLE RISER

EXPANDABLE-METAL PIVOTED TURNBUCKLE RISER

What it is: Galvanized-steel insert manually tightened into place against the manhole frame to create a new, higher lid for the cover.
How it works: A gap in the one-piece insert is connected by a turnbuckle with pivots on each end. Insert a screwdriver in the turnbuckle and turn. Each rotation exerts 1,000 pounds of force, which is how one person achieves an air- and watertight seal around the frame’s entire circumference. The full-circle “fuse” of riser to frame keeps traffic from dislodging or dislocating the cover.
Point of distinction: Because they’re installed as part of the paving process, with crews placing the insert and manhole cover before asphalt is placed, the company says the product reduces costs 81%.
Required tools: Crowbar or pry bar, sledgehammer, Phillips-head screwdriver
Price range: Depends on diameter and height, but typically $100 to $150 each
Ordering/availability: Company website has a downloadable one-page order form that walks you through the process of measuring the existing frame to ensure proper fit; standard delivery is five days, but same-day service is available at no additional charge if the order is placed by 10 am EST.
Manufacturer: American Highway Products Ltd.; Bolivia, Ohio, www.ahp1.com
Customer:
George Dicks, District Maintenance Manager, Ronald Wastewater District
Shoreline, Wash.
gdicks@ronaldwastewater.org

About the Author

Stephanie Johnston

As editor in chief, Stephanie Johnston oversees Public Works’ print magazine, website, e-newsletters, and digital initiatives. Before joining the staff 10 years ago, she worked on publications owned by the American Bar Association, Associated Equipment Distributors, and agriculture-industry publisher Century Communications. In 2015, she became editor of Concrete Construction sister publication Concrete Surfaces. She has a master’s degree from Northwestern University’s Medill School of Journalism and lives in a Chicago suburb. E-mail sjohnston@hanleywood.com or follow her on Twitter at @StephanieatPW.

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