Item:Download Specs (pdf):
48″ WSDOT Type 1 Manhole
Isometric

Orthographic
48″ WSDOT Type 3 Manhole
Isometric

Orthographic
60″ WSDOT Type 1 Manhole
Isometric

Orthographic
60″ WSDOT Type 3 Manhole
Isometric

Orthographic
72″ WSDOT Type 1 Manhole
Isometric

Orthographic
72″ WSDOT Type 3 Manhole
Isometric

Orthographic
84″ WSDOT Type 3 Manhole
Isometric
96″ WSDOT Type 1 Manhole
Isometric

Orthographic
96″ WSDOT Type 3 Manhole
Isometric
120″ WSDOT Type 3 Manhole
Isometric
144″ WSDOT Type 3 Manhole
Isometric

Adjstment Rings 
24″ Dia. Adjustment Rings
Isometric

30″ Dia. Adjustment Rings
Isometric

36″ Dia. Adjustment Rings
Isometric
42″ Dia. Adjustment Rings
Isometric