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
COH Water Approved Materials List
Standard Details
COH Standard Water Details
SHEETS | |
| COH-WD No-1 WATER DETAIL GENERAL NOTES | |
| COH-WD No-2 TRENCH CONSTRUCTION | |
| COH-WD No-3 DUCTILE IRON PIPE RESTRAINT | |
| COH-WD No-4 VALVE INSTALLATION | |
| COH-WD No-5 TAPPING SLEEVE AND VALVE ASSEMBLY | |
| COH-WD No-6 AIR RELEASE VALVE INSTALLATION | |
| COH-WD No-7 SERVICE LATERAL INSTALLATION | |
| COH-WD No-8 2-IN METER BOX INSTALLATION | |
| COH-WD No-9 3-INCH THROUGH 8-INCH METER & VAULT | |
| COH-WD No-10 COMMERCIAL WATER SERVICE WITH FIRE LINE | |
| COH-WD No-11 FIRE HYDRANT STANDARD INSTALLATION | |
| COH-WD No-12 FIRE HYDRANT DITCH INSTALLATION | |
| COH-WD No-13 FIRE HYDRANT SLOPE INSTALLATION | |
| COH-WD No-14 CARRIER PIPE IN STEEL ENCASEMENT | |
| COH-WD No-15 PRE-TEST BACKFLOW PREVENTION ASSEMBLY | |
| COH-WD No-16 ANTI-SEEP COLLAR |
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 |