BREAKING NEWS Confirmed coronavirus cases in the world reach 20 million Full Story
SEVERE WX : Fire Weather Watch View Alerts

Spillway crisis cost estimate now $870 milliion

The costs related to the Oroville Dam Spillway incident keep rising.

Posted: Jan 26, 2018 5:37 PM
Updated: Feb 9, 2018 10:28 AM

The costs related to the Oroville Dam Spillway incident keep rising.

On Friday, the Department of Water Resources estimated the new total to be about $870 million, up from last fall’s estimate of around $650 million.

Earlier this month, crews finished replacing the emergency spillway crest wall. The underground secant pile wall that's being built up to 65 feet into bedrock is scheduled to be completed sometime in March. They are also preparing a roller compacted concrete splash-pad.

“The RCC Splash-pad, in conjunction with the secant pile wall, will armor the existing terrain, reducing the type of uphill erosion that occurred last February if the emergency spillway were ever to be used again,” said DWR Assistant Deputy Director Ted Craddock.

Crews will also put in an RCC buttress at the base, and that will begin later this year.

As far at as the primary spillway, phase 2 is expected to start in May if the weather allows, and the original 730 feet leading up to the radial gates will be removed and replaced with structural concrete.

They will also install a 2.5 foot layer of structural concrete over the roller compacted concrete in the middle of the main chute. The current RCC walls will be removed and replaced with structural concrete.

Of the 234 structural concrete slabs placed last year, three did not cure properly and may have to be fixed later this year.

And then there's the cost, which is now estimated to be about $870 million.

Last fall's estimate was about $650 million, but that didn't include the about $210 million of related recovery work on top of the Kiewit contract.

$500 million is for the work on both spillways through the contract with Kiewit. $210 million is for related recovery work which includes debris and sediment removal, powerline replacement, creation of access roads, staff time, and technical consultants. $160 million is for the emergency response, which ended last May.

The department hopes FEMA will cover 75% of that $870 million, and anything that doesn't get reimbursed will be billed to the state water project contractors.

So far FEMA has approved a reimbursement of almost $87 million out of the about $116 million submitted by the DWR.

The costs so far do not include the more than $1 billion in legal claims filed by property owners downstream.

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 559746

Reported Deaths: 10377
CountyConfirmedDeaths
Los Angeles2085634977
Riverside40452799
Orange39641726
San Bernardino35712546
San Diego32330593
Kern23583171
Fresno17290171
Alameda13213208
San Joaquin12303211
Santa Clara11687204
Sacramento10795161
Tulare10475196
Imperial9693244
Stanislaus9665162
Contra Costa9182139
Ventura814689
San Francisco754867
Santa Barbara670469
San Mateo6110120
Marin532779
Monterey529335
Merced501264
Kings445356
Solano402940
Sonoma355647
Madera230239
Placer218620
San Luis Obispo209315
Yolo172143
Santa Cruz12386
Butte10958
Napa104610
Sutter9427
El Dorado7291
San Benito7154
Lassen6380
Yuba6004
Mendocino43110
Shasta41810
Colusa3624
Glenn3603
Nevada3221
Humboldt2824
Tehama2761
Lake2202
Amador1642
Mono1541
Tuolumne1522
Calaveras1471
Del Norte990
Siskiyou930
Inyo893
Mariposa612
Plumas340
Modoc50
Trinity50
Sierra30
Alpine20
Unassigned00
Chico
Clear
84° wxIcon
Hi: 101° Lo: 67°
Feels Like: 84°
Oroville
Clear
80° wxIcon
Hi: 101° Lo: 68°
Feels Like: 81°
Paradise
Clear
86° wxIcon
Hi: 94° Lo: 68°
Feels Like: 86°
Chester
Clear
63° wxIcon
Hi: 88° Lo: 60°
Feels Like: 63°
Red Bluff
Clear
85° wxIcon
Hi: 107° Lo: 70°
Feels Like: 85°
Willows
Clear
84° wxIcon
Hi: 106° Lo: 64°
Feels Like: 84°
Monday was almost as hot as Sunday for most of northern California as a ridge of high pressure controlled our weather. A cooling trend is coming, but it will only cool to seasonable levels in the short term.
KHSL Severe
KHSL Radar
KHSL Temperatures

Community Events