Standard Specifications and Details
Standard Specifications
COH Standard Water Specifications (currently unavailable)
COH Design Standards for Water, Sewer, and Pump Stations
Termination of Allowance for Substitution of Standard Water Pipe Material - Effective 6/30/2023
Standard Details
COH Standard Water Details
SHEETS | |
| WD-01-General-Notes-for-Water-Details-051625 | |
| WD-02-Trench-Construction-Outside-Pavement-011219 | |
| WD-03-Trench-Construction-Under-Pavement-061019 | |
| WD-04-1 of 2-Ductile-Iron-Pipe-Restraint-052223 | |
| WD-04-2 of 2-Ductile-Iron-Pipe-Restraint-052223 | |
| WD-05-Valve-Installation-Detail-101121 | |
| WD-06-Standard-Tapping-Sleeve-and-Valve-Assembly-011219 | |
| WD-07-Standard-Air-Release-Valve-Installation-032321 | |
| WD-08-Minimum-Service-Line-Installation-1-Inch-021021 | |
| WD-09-Two-Inch-Service-Lateral-Installation-011219 | |
| WD-10-Two-Inch-Meter-Box-and-Installation-062019 | |
| WD-11-DETAIL REMOVED | |
| WD-12-Fire-Hydrant-Standard-Installation-042419 | |
| WD-13-Fire-Hydrant-Ditch-Installation-011219 | |
| WD-14-Fire-Hydrant-Slope-Installation-011219 | |
| WD-15-Commercial-Water-Service-With-Fire-Line-052023 | |
| WD-16-Carrier Pipe and Encasement-011219 | |
| WD-17-Open-Cut-Below-Creek-Bottom-011219 (UNDER REVIEW) | |
| WD-18-Three-Thru-Eight-Inch-Meter-and-Vault-092322 | |
| WD-19 Manhole Over Water Line-080820 | |
| WD-20 New Water Line Pre-test Backflow Prevention Assembly-02082 | |
| WD-21 Anti-Seep Collar-020723 |
COH Standard Sanitary Sewer Details
SHEETS | |
| SSD-01-Trench-Construction-Outside-Pavement-101923 | |
| SSD-02-Trench-Construction-Under-Pavement-101923 | |
| SSD-03-Concrete-Pipe-Encasement-101923 | |
| SSD-04-Standard-Service-Connection-Lateral-and-Cleanout-101923 | |
| SSD-05-Service-Connection-at-Manhole-101923 | |
| SSD-06-Precast-Manhole-04112025 | |
| SSD-07-Precast-Manhole-Five-Foot-Dia-092324 | |
| SSD-08-Shallow-Precast-Manhole-092324 | |
| SSD-09-Drop-Manhole-092324 | |
| SSD-10-Vented-Manhole-101923 | |
| SSD-11-Standard-Manhole-Frame-and-Cover-012624 | |
| SSD-12-Watertight-Locking-Manhole-Frame-and-Cover-012624 | |
| SSD-13-Manhole-Abandonment-101923 | |
| SSD-14-Pipe-Boring-and-Encasement-101923 | |
| SSD-15-Manhole-Casting-in-New-Pavement-Road-Grades-Less-Than-One-Per-Foot-101923 | |
| SSD-16-Manhole-Casting-in-New-Pavement-Road-Grades-Greater-Than-One-Inch-Per-Foot-101923 | |
| SSD-17-Asphalt-Concrete-Replacement-101923 | |
| SSD-18-Asphalt-Concrete-Driveway-and-Walkway-repair-101923 | |
SSD-19-Asphalt-Replacement-Full-Width-Overlay-101923 | |
| SSD-20-Asphalt-Concrete-Full-Width-Overlay-101923 | |
| SSD-21-Small-Creek-Crossing-011219 (UNDER REVIEW) | |
| SSD-22-Large-Creek-Crossing-011219 (UNDER REVIEW) | |
| SSD-23-1-Aerial-Sewer-Crossing-011219 (UNDER REVIEW) | |
| SSD-23-2-Aerial-Sewer-Crossing-011219 (UNDER REVIEW) | |
| SSD-24-Pipe-Abandonment-101923 |