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Jh Milligan Estate Dam

Jh Milligan Estate Dam listed Low as its hazard class, with a condition assessment of Not Rated, as of October 30, 2026, according to the National Inventory of Dams.

Federal ID TX03993, in Camp, Texas. The NID counts it as a dam record.

Hazard class and condition, each as the NID defines it

Hazard class

Hazard Potential Classification
Low

“Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.”

The NID defines the field: “Category to indicate the potential hazard to the downstream area resulting from failure or mis-operation of the dam or facilities. It reflects probable loss of human life and impacts on economic, environmental, and lifeline interests. The hazard potential does not speak to the condition of the dam or the risk of the dam failing.”

Condition

Condition Assessment
Not Rated
Condition Assessment Date
June 18, 2014

“The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.”

The NID defines the field: “Assessment that best describes the condition of the dam based on available information.”

The record, as the NID prints it

Each field is under the NID’s own label, with the unit the label names. A date later than the file’s own is printed as the NID prints it. The record’s own date is October 6, 2026; the file’s is October 30, 2026.

Identity

Federal ID
TX03993
NID ID
TX03993
Is Associated Structure?
No
Number of Associated Structures
0
Dam Name
Jh Milligan Estate Dam

The NID gives no value for this record: Other Structure ID; Other Names; Former Names.

Location

State
Texas
County
Camp
Latitude
33.01596
At the dam’s centerline, in decimal degrees.
Longitude
-94.961534
At the dam’s centerline, in decimal degrees.
River or Stream Name
Tr-Big Cypress Creek
Congressional District
Texas, Congressional District 01

The NID gives no value for this record: City; Distance to Nearest City (Miles); American Indian/Alaska Native/Native Hawaiian.

Where the record comes from

Source Agency
Texas
State or Federal Agency ID
TX03993
Data Last Updated
October 6, 2026

Owners and designers

Owner Names
The NID’s owner name is withheld here because it can name a person.
The owner’s type is printed below.
Owner Types
Private
Primary Owner Type
Private

The NID gives no value for this record: Designer Names.

Purpose and regulation

Primary Purpose
Water Supply
Purposes
Water Supply
State Regulated Dam
Yes
State Jurisdictional Dam
Yes
State Regulatory Agency
Texas Commission on Environmental Quality
State Permitting Authority
Yes
State Inspection Authority
Yes
State Enforcement Authority
Yes
Federally Regulated Dam
No
Non-Federal Dam on Federal Property
No
Built Under the Authority of the Secretary of Agriculture
No
NRCS Watershed Dam Authorization
N/A
Non-USACE Dam with USACE Flood Control Storage Authority (Section 7, Flood Control Act of 1944)
No

The NID gives no value for this record: Federal Agency Owners; Federal Agency Involvement Funding; Federal Agency Involvement Design; Federal Agency Involvement Construction; Federal Agency Involvement Regulatory; Federal Agency Involvement Inspection; Federal Agency Involvement Operation; Federal Agency Involvement Other.

Structure and size

Primary Dam Type
Earth
Dam Types
Earth
Dam Height (Ft)
22
Hydraulic Height (Ft)
22
NID Height (Ft)
22
NID Height Category
Less than 25 feet
Dam Length (Ft)
685
Year Completed
1964
Year Completed Category
1960-1969
NID Storage (Acre-Ft)
570
Max Storage (Acre-Ft)
570
Normal Storage (Acre-Ft)
125
Surface Area (Acres)
24
Spillway Type
None
Outlet Gate Type
None1

The NID gives no value for this record: Core Types; Foundation; Structural Height (Ft); Volume (Cubic Yards); Years Modified; Drainage Area (Sq Miles); Max Discharge (Cubic Ft/Second); Spillway Width (Ft); Number of Locks; Length of Locks (ft); Lock Width (Ft); Length of Secondary Lock (Ft); Secondary Lock Width (Ft).

Inspection, status and emergency action plan

Operational Status
Not Applicable
Operational Status Date
May 21, 2022
EAP Prepared
Not Required

The NID gives no value for this record: Last Inspection Date; Inspection Frequency; EAP Last Revision Date.

Inundation maps

Inundation Maps Added to NID?
No

The NID’s file records whether inundation maps were added and holds no link to them, so this page links none. The National Inventory of Dams viewers are the NID’s place to look.

The NID lists no other record under this record’s NID ID.

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Sources

Compiled automatically from National Inventory of Dams — national CSV by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved