Pine Brook Water District

Owner: Pine Brook Water District, 1903 Linden Drive, Boulder, Colorado, 80304

Statistics:

Dam Type Code: Gravity Concrete Dam

Dam Height: 83 feet (to bottom of excavation)

Dam Height from finished grade: 73 feet

Crest Length: 606 feet (overall including parapet wall)

Crest Length: 571 (not including parapet wall)

Crest Length Visible: 550 feet

Crest Width: 14.13 feet

Reservoir Surface Area: 4.06 acres

Normal Storage Capacity: 100.96 acre feet

Maximum Storage Capacity: 137.36 acre feet (during flood)

Drainage Basin Area: 300 acres

Maximum Outlet Discharge Capacity: 49 cubic feet/second (cfs)

Principal Spillway Capacity: 500 cubic feet/second (cfs)

Emergency Spillway Capacity: 4,100 cubic fee/second (cfs)

Next Downstream City or Town: City of Boulder

Distance to Downstream Town: 1 Mile

River or Stream: Two Mile Creek

Facts:

32,425 cubic yards of material were excavated.

15,000 cubic yards of soil will be used to create the downstream embankment against the downstream face of the dam.

4,302 cubic yards of conventional concrete were poured for the upstream dam face, the spillway tower & the spillway outlet structure.

34,140 cubic yards of roller compacted concrete were used to construct the main body of the dam.

Dam Type Code:	Gravity Concrete Dam
Dam Height:	83 feet (to bottom of excavation)
Dam Height from finished grade:	73 feet
Crest Length:	606 feet (overall including parapet wall)
Crest Length:	571 (not including parapet wall)
Crest Length Visible:	550 feet
Crest Width:	14.13 feet
Reservoir Surface Area:	4.06 acres
Normal Storage Capacity:	100.96 acre feet
Maximum Storage Capacity:	137.36 acre feet (during flood)
Drainage Basin Area:	300 acres
Maximum Outlet Discharge Capacity:	49 cubic feet/second (cfs)
Principal Spillway Capacity:	500 cubic feet/second (cfs)
Emergency Spillway Capacity:	4,100 cubic fee/second (cfs)
Next Downstream City or Town:	City of Boulder
Distance to Downstream Town:	1 Mile
River or Stream:	Two Mile Creek