Packaged Metering Manholes
For Wastewater Flow Measuring
Take the guess work out of installation. Tracom flume manholes come packaged; ready to be dropped in place.
Manholes for your application
Fiberglass Reinforced Plastic (FRP) Manholes are a complete solution for flow monitoring in municipal and industrial applications.
TRACOM packaged metering manholes are:
• Lightweight
• corrosion resistant
• watertight
• structurally strong
• Meet the latest revision of ASTM D-3753 “Standard Specifications for Fiberglass Manholes.”
Operator's Preferred Manhole
The lightweight nature of fiberglass (typically 1/10th the weight of concrete)
minimizes the equipment necessary to install the unit. Also, each manhole
is glassed together to provide a single watertight structure; there are no
joints or seals to leak or allow infiltration into the manhole. Industries
benefit by paying only the amount of their actual effluent. Municipalities
benefit by having a safe, clean environment from which to monitor flow and
sample in.

Dome Top
- Application: Non-Traffic Area
- Depth: inlet invert to surface grade + 12”
- Includes: fully opening dome top cover rated for 1,000 lb. top load
- Hardware: stainless steel piano hinge, solid FRP hinge block, stainless steel hasp, cover support bar with locking pin on chain, and a soft neoprene sponge gasket

Aluminum Hatch
- Application: Pedestrian loading (i.e. sidewalks)
- Depth: Inlet invert to surface grade (or slightly above surface grade)
- Includes: hatch (300 P.S.F.), watertight/non-watertight hatch
- Hardware: automatic locking hold open arm, a stainless steel recessed handle, and a staple for a user supplied padlock (camlocks if hatch is watertight)
- Manholes with 4 feet or more of depth between the top of the flume and bottom of the hatch automatically include a pull-up automatic

H-20 Highway Loading
- Application: Traffic area (i.e. parking lots, roads)
- Depth: Inlet invert to surface grade – 12” [to allow for grade ring(s) and cover – by others]
- Includes: Open top, note: Cover and grade ring(s) by others
- Hardware: Manholes with 4 feet or more of depth between the top of the flume and shoulder
Standard Features:
- Integral cover
- Barrel with interior/exterior gel coat
- Pipe stub or ANSI 150 lb. flange end connections
- Integral watertight fiberglass floor
- Anti-flotation base mounting flange
- Stainless steel reinforced, FRP ladder with
photoluminescent, non-slip grit coated rungs - OSHA approved confined space entry sign
- 2″ (5,08 cm) NPT tap
- 1/2″ (1,27 cm) thick foam leveling pad
- All stainless steel hardware
Optional Features Include:
- Three diameters:
- 48″ (122 cm)
- 60″ (155 cm)
- 72″ (183 cm)
- Three top styles to fit your application needs
- Dome style (for ease of access)
- H-20 reducer (road and parking lot areas)
- Aluminum Hatch (pedestrian or low profile areas)
- Electrical packages:
- NEMA 4X lighting
- exhaust fans
- GFI outlets
- Intermediate platforms – full and half diameter
- Equipment shelves and mounting panels
- Grating, FRP pultrusion, open-cell, removable
Manhole Top Styles

Dome Top
- Full diameter access
- Stainless steel lockable hasp
- Stainless steel piano hinge
- Locking lift arm
- Available in 4′, 5′, and 6′ diameters
- Intended for non-traffic / non-pedestrian applications

Aluminum Hatch
- Water tight or non-water tight
- Steel and aluminum construction available
- Available with custom engraving, spring assists, and multiple lock configurations
- Available in 4′, 5′, and 6′ diameters
- Intended for pedestrian loading or low profile applications

H-20 Highway Traffic Loading
- 22 ½” and 31 ¾” openings
- Stainless steel pull-up ladder assist
- Conforms to AASHO H-20 Axial Loading
- Available in 4′, 5′, and 6′ diameters
- Intended for road, highway, or parking lot
Technical Details
Product Data Sheet
Specifications
Drawings
- Dome Top
- Aluminum Hatch
- H-20 Highway Loading
48 Inch Diameter
- Parshall 3" - Black and White
- Parshall 3" - Color
- Parshall 9" - Color
- Parshall 9" - PH - Sample - Adj Ult - Staff - Black and White
- Parshall 9" - PH - Sample - Adj Ult - Staff - Color
- Trapezoidal Large60 Flume - Bubble Staff Gauge Vinyl Ester
- Trapezoidal XL60 - Bubble Tube Staff Gauge - B&W
- Trapezoidal XL60 - Sample Staff Ultrasonic ph - B&W
- Trapezoidal XL60 - Sample Staff Ultrasonic ph - Color
- Trapezoidal XL60 - Ultrasonic - Staff Gauge - Color
60 Inch Diameter
72 Inch Diameter