SIZE CATEGORY
Category | Impoundment Storage (Acre Feet) | Dam Height (Feet) |
A | Equal to or greater than 50,000 | Equal to or greater than 100 |
B | Less than 50,000 but greater than 1000 | Less than 100 but greater than 40 |
C | Equal to or less than 1000 | Equal to or less than 40 |
HAZARD POTENTIAL CATEGORY
Category | Population at Risk | Economic Loss |
1 | Substantial (Numerous homes or small businesses or a large business or school). | Excessive such as extensive residential, commercial, or agricultural damage, or substantial public inconvenience. |
2 | Few (A small number of homes or small businesses.) | Appreciable such as limited residential, commercial, or agricultural damage, or moderate public inconvenience. |
3 | None expected (no permanent structures for human habitation or employment.) | Significant damage to private or public property and short duration public inconvenience such as damage to storage facilities or loss of critical stream crossings. |
4 | None expected (no permanent structures for human habitation or employment.) | Minimal damage to private or public property and no significant public inconvenience. |
25 Pa. Code § 105.91
The provisions of this §105.91 amended under the Dam Safety and Encroachments Act (32 P. S. §§ 693.1-693.27); The Clean Streams Law (35 P. S. §§ 691.1-691.1001); section 7 of the act of June 14, 1923 (P. L. 704, No. 294) (32 P. S. § 597); sections 514, 1901-A, 1908-A, 1917-A and 1920-A of The Administrative Code of 1929 (71 P. S. §§ 194, 510-1, 510-8, 510-17 and 510-20); and the Flood Plain Management Act (32 P. S. §§ 679.101-679.601).
This section cited in 25 Pa. Code § 87.112 (relating to hydrologic balance: dams, ponds, embankments and impoundments-design, construction and maintenance); 25 Pa. Code § 90.112 (relating to hydrologic balance: dams, ponds, embankments and impoundments-design, construction and maintenance); 25 Pa. Code § 105.12 (relating to waiver of permit requirements); 25 Pa. Code § 105.13 (relating to regulated activities-information and fees); 25 Pa. Code § 105.13b (relating to proof of financial responsibility); 25 Pa. Code § 105.53 (relating to inspections by owners and inspection reports); 25 Pa. Code § 105.98 (relating to design flood criteria); and 25 Pa. Code § 105.442 (relating to authorization for general permits).