Marshall #2 is an earth dam located in Weld County, Colorado, built in 1887. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 20 ft20 ft tall and 900 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Marshall #2
The primary purpose of Marshall #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Virgil Podtburg (private). It impounds the Little Thompson River-tr near Platteville.
The dam stands 20 feet tall and stretches 900 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 51 acre-feet. Completed in 1887, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Platteville |
| River/Stream | Little Thompson River-tr |
| Coordinates | 40.30168, -104.94724 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 14 ft |
| Dam Length | 900 ft |
| Year Completed | 1887 (139 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 5 acres |
| Max Discharge | 315 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Virgil Podtburg |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01776 |
| Federal ID | CO01776 |
| More Info | State Dam Safety Program |