Lagoon Valley County Park

Lagoon Valley County Park is an earth dam located in Solano County, California, built in 1981. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Lagoon Valley County Park

The primary purpose of Lagoon Valley County Park is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Vacaville (local government). It impounds the Tr Laguna Creek.

The dam stands 13 feet tall and stretches 5,200 feet across, creates a reservoir covering 105 acres, has a maximum storage capacity of 780 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1981, the structure is 45 years 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/17/2025.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountySolano
River/StreamTr Laguna Creek
Coordinates38.33430, -122.01310

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Height13 ft
Dam Length5,200 ft
Year Completed1981 (45 years old)

Storage & Hydraulics

NID Storage780 acre-ft
Max Storage780 acre-ft
Surface Area105 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeWater Supply
OwnerCity of Vacaville
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection09/17/2025
Emergency Action PlanYes

Identifiers

NID IDCA01315
Federal IDCA01315
More InfoState Dam Safety Program

Nearby Dams