STREAMING NOW: Watch Now

DWR: Crews will be ready to work on main Oro. Dam. chute May 1st

The Department of Water Resources is expecting to resume work on the main Oroville Dam Spillway chute in the beginning of May as long as the weather allows.

Posted: Feb 21, 2018 6:45 PM

The Department of Water Resources is expecting to resume work on the main Oroville Dam Spillway chute in the beginning of May as long as the weather allows.

In terms of the dollar amount, that number remains at $870 million, and the DWR is operating as if FEMA will reimburse about 75% of that cost.

Most of the work this year has been focused on the emergency spillway.

The underground secant pile wall that's being built up to 65 feet into bedrock is now 95% complete and will be done in March. This wall is being built 730 feet downhill of the emergency spillway.

They're also still working on the roller compacted concrete splash pad and will start placing the concrete as early as next week.

The RCC Splash pad, in conjunction with the secant pile wall, will armor the existing hillside, reducing the type of uphill erosion that occurred last February if the emergency spillway were ever to be used again.

As far as the primary spillway, that work is still scheduled to start at the beginning of May.

That work includes removing the original 730 feet leading up to the radial gates and replacing that portion with structural concrete.

The energy dissipaters at the base of the spillway will also be hydro blasted and resurfaced; when the main spillway is done in 2019, it will have a design capacity of 270,000 cubic feet per second. This is different than the operational capacity as the spillway has never exceeded 160,000 cubic feet per second.

The DWR still needs 1.2 million tons of aggregate for the remaining roller compacted concrete, and workers established a site next to the spillway and last began blasting and excavation operations which will continue into the fall .

Department spokespeople would not comment on any of the lawsuits that have been filed, saying they can't comment on pending litigations.

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 284012

Reported Deaths: 6573
CountyConfirmedDeaths
Los Angeles1207643582
Riverside21101506
Orange18892369
San Diego17578399
San Bernardino15932272
Imperial7343121
Alameda6925140
Fresno692481
San Joaquin560058
Kern554384
Santa Clara5478165
Tulare5175139
Sacramento456676
Contra Costa409286
San Francisco402050
Ventura385850
Santa Barbara374230
San Mateo3692111
Marin298926
Stanislaus288945
Kings275537
Monterey223917
Solano182627
Merced162311
Sonoma146612
Placer93811
San Luis Obispo8082
Yolo72326
Madera7137
Santa Cruz5013
Napa4484
San Benito2922
Butte2753
Sutter2753
Lassen2670
El Dorado2640
Shasta1635
Humboldt1544
Nevada1511
Glenn1460
Yuba1392
Lake981
Tehama941
Mendocino920
Colusa860
Calaveras610
Del Norte581
Tuolumne570
Mono481
Amador340
Inyo341
Siskiyou320
Mariposa311
Plumas130
Alpine20
Trinity20
Sierra10
Unassigned00
Chico
Clear
84° wxIcon
Hi: 97° Lo: 65°
Feels Like: 84°
Oroville
Clear
87° wxIcon
Hi: 98° Lo: 66°
Feels Like: 87°
Paradise
Clear
84° wxIcon
Hi: 90° Lo: 65°
Feels Like: 84°
Chester
Clear
68° wxIcon
Hi: 79° Lo: 53°
Feels Like: 68°
Red Bluff
Clear
83° wxIcon
Hi: 98° Lo: 68°
Feels Like: 83°
Willows
Clear
84° wxIcon
Hi: 100° Lo: 65°
Feels Like: 84°
The seasonably hot weather continued today for northern California, but more heat and stronger breezes are coming our way through early next week.
KHSL Severe
KHSL Radar
KHSL Temperatures

Community Events