Materials Section - City of Xenia

All manhole covers, seating frames, and adapter rings shall be machined to a firm and even
bearing and fit truly into the frames. The manufacturer’s name shall be cast upon the manhole
covers and frames.
NEENAH
EAST JORDAN
Catch Basin Castings Xenia Type 2
1. Chairback Curb 1-inch radius R-3290 Grate Type C or L 7380 – T1 Grate M2 or M6
2. Chairback Curb 3-inch radius R-3290 Grate Type C or L 7380 – T1 Grate M2 or M6
3. Barrier Curb R-3290 Grate Type C or L 7380 – T1 Grate M2 or M6
4. Roll Curb R-3290-D Grate Type C or L 7030 – T2 Grate M2 or M6
5. Drive Approach R3290-A Grate Type C 7034 – Grate Type M2 or M6
6. Roll Drive Approach R3290-A Grate Type C 7030 – T3 Grate M2 or M6
Catch Basin Casting Xenia Type 3 R-3295-2 Grate Type C or L 7031 – T1 Grate Type M2 or M6
Xenia Type 3 Roll Curb R-3295-2-D 7031 – T2 Grate Type M2 or M6
Catch Basin 2-2-B R-4852 5115 – M2
Manhole Casting R-1767 VENTED LID 1600 VENTED LID
Manhole Casting Water Tite R-1916-D 1600 Water Tite
15.8 Chimney Seals - Chimney Seals may be required as determined by the City Engineer or the
Engineer’s Representative.
15.9 Drop Assemblies (See Standard Drawing #203) - Drop assemblies shall be installed where
the change in elevation of pipes through a manhole exceeds 24-inches. Drop manhole assemblies
shall consist of a standard tee of the main line pipe, line diameter with the spur diameter as
specified on the drawings. The riser pipe, the standard short elbow, and the short hob section
shall be the same material as the main line. The entire assembly shall be encased in a minimum
of 5-inches of concrete, reinforced and anchored to manhole with 1-inch diameter reinforcing
bars. Reinforcement shall be shown on the construction drawings. Drop assemblies shall be
constructed on the outside of the manhole.
15.10 Venting Assemblies - Manhole venting assemblies shall be constructed of 4-inch ductile
iron pipe and fittings. The locations of venting assemblies with the individual length of run and
height of rise and elevation of vent are shown on the construction drawings.
15.11 Swing Check Valves All new construction shall install a swing check valve if any of the
following criteria has been met or at the discretion of the City of Xenia.
1. The building has a basement or crawl space within 250 ft of a known 100 year flood
boundary.
2. The building has a basement, crawl space, or finish floor elevation within 5 ft of a
known 100 year base flood elevation.
The swing check valve must meet the requirements of the City of Xenia and/or Greene County
Plumbing Inspection. The swing check valve installation must be installed in a manor that allows
access for cleaning, repairing, and replacement.
17 February 2007