levee Archives - The Dutra Group

Sacramento River Erosion Contract 4

christine — Thu, 15 May 2025 12:15:22 +0000

Project Description

Similar to the mulitple erosion sites addressed in Contract 2, the team placed a large section of riprap to armor the existing levee slope at the Contract 4 site, using approximately 45,000 tons of quarry stone material across 1,700 lineal feet of the Sacramento River levee.

Major Challenges
Delivering and installing 45,000 tons of riprap via barge from San Rafael to Sacramento within an extremely tight schedule constrained to two narrow “work windows” to protect sensitive fish species was a major challenge for this project. Another challenge was instlaling an experimental erosion solution, coir block system, a new approach used by the USACE for erosion control.

Project Highlights
Successfully implementing the USACE’s new Coir Block System, an experimental tactic used for erosion control. The coir block structure is designed to provide mechanical support to the soil, effectively reducing surface erosion while facilitating plant growth within the planting benches. Substantial colaboration between Dutra, the USACE, and local entities including the Central Valley Flood Board, the Sacramento Area Flood Control Agency (SAFCA) and the homeonwers who live behind the levees provided a positive experience between all groups that ultimately resulted in a successful, completed project.

Project Scope

Delivery and installation of 45,000 tons of riprap as well as construction of planting benches with the installation of Coir Blocks along 1,700 lineal feet of the Sacramento River levee.

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Victoria Island Emergency Response 2024

christine — Wed, 15 May 2024 12:18:41 +0000

Project Description

There was a levee breach and an emergnecy repair was required to prevent catastrophic loss. Dutra’s Delta Construction team was quickly dispatched to the scene to plug and repair the breach on the levee. Once the flow of water was stopped they began work on the emergency erosion levee repairs.

Major Challenges
Emergency work that required quick action by the all parties involved and mobilizing our team as well as the materials and equipment necessary to seal and repair the breeched levee in the fastest and safest way possible. Working day and night, both marine and land-based teams executed this emergency repair while documenting every activity with tug logs, daily logs, and weighmaster certificates. The effort also included constructing a retention basin with a dozer to contain the outflow at the toe of the levee.

Project Highlights
This successful rapid response is a testament to Dutra’s unmatched capacity in emergency marine construction. It reflects our deep commitment to safeguarding California’s levee infrastructure and the communities that depend on it.

Project Scope

Our teams worked around the clock to place preloaded soil-rock mixture—originally designated for another levee site—to slow the flow of water and stabilize the failure.
Over the next two days, crews placed over:

• 2,372 tons of soil-rock mixture
• 1,851 tons of Decker Island levee fill
• 930 tons of riprap from San Rafael Rock Quarry

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Sacramento River Revetment Restoration

christine — Mon, 24 Jul 2023 08:21:12 +0000

Project Description

The Sacramento River Revetment Restoration project involved placing rip-rap (rock) on the levee and removing vegetation along the Sacramento River. This project stabilized the river banks, reduced erosion, and managed vegetation growth.

This restoration work protected the integrity of the levee system and maintained the river channel. By reinforcing the levee with rip-rap and clearing vegetation, the project enhanced flood control and riverine management in the area.

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Tyler Island, California, Emergency Levee Repair

christine — Sun, 03 Dec 2017 20:32:59 +0000

Project Description

In side slope failure, due to saturated Levee slope from heavy rains, leaving a 10’ wide water side portion of Levee standing against an already high water elevation and heavy flows due to extreme run off. Dutra was call for an immediate emergency response to rebuild the Levee section before it failed and created a breach in the Levee, flooding the Island and parts of Walnut Grove.

Major Challenges

This project was unique compared to other projects in the fact that it was an immediate response emergency call out to save the Levee section, prevent a Levee breach and to provide safety to the public and homes in the area. The Dutra Group was called by the District Engineer on 2/13/2017 at 1000 hrs. The Dutra Group had a Crane barge, loaded rock barge with tug on site placing rock as directed by 1130 hrs. the same day.

Also, there was mobilized within 2 hrs., assist equipment, 2 dozers, 416 back hoe, 84” pad foot compactor, porta potties, and light plants with supervisors and employees to operate at a 24-hr. basis. The Derrick Barge 24 was also mobilized out of Dutra Rio Vista facility to assist. Under direction of the district there was placed 9,024 tons of rock product placed brought from Dutra’s San Rafael Rock Quarry by barge and tug 65 Nautical Miles away.

In addition, with that 8,182 tons of fill was placed and brought by barge and tug from Decker Island 20 nautical Miles away. 2 tug boats were used on project and coordinated with Caltrans and the Mokelumne River bridge openings.

Project was completed on 2/16/2017 4 days later with no safety incidents.

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Brannan Andrus, California, Levee Stability Berm

christine — Sat, 03 Dec 2016 20:30:15 +0000

Project Description

Place Drain Rock at land side toe of levee as ballast to prevent slope slippage.

Major Challenges

Marina located at job site prevented direct placement by barge.

Project Scope

To off load 5,400 ton of Drain rock by barge into 10 wheel dump trucks, haul to job site 1 mile away and place as per lines and grades with dozer. Place stabilization fabric and to install water lines.

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Brannan Andrus Levee Stability Berm

christine — Thu, 01 Dec 2016 07:57:44 +0000

Project Description

Place Drain Rock at land side toe of levee as ballast to prevent slope slippage.

Major Challenges

Marina located at job site prevented direct placement by barge.

Project Scope

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Drought Emergency – Temporary Rock Barrier

christine — Thu, 01 Jan 2015 20:11:10 +0000

Project Description

Dutra installed a barrier made up of approximately 150,000 tons of embankment rock and 35,500 sf of sheet piles across the West False River between Jersey and Bradford islands. The barrier was to prevent saltwater from pushing with the tides into the central Sacramento- San Joaquin Delta from the San Francisco Bay.

With the drought in its fourth year, this was an essential part of the DWR’s strategy to maintain good water quality in the Delta, which provides water to 25 million Californians.

Major Challenges

Main challenge was to achieve full closure of False River in 45 days. Liquidated Damages if not completed were $15,000/ day. Actual closure took 23 days, with final placement of remaining rock in 28 days.

Challenges included working in the increasing currents of False River.

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2004 Jones Tract Levee, California, Emergency Breach Repair

christine — Wed, 01 Dec 2004 20:41:58 +0000

Project Description

On June 3, 2004, at approximately 7:50 a.m. a levee breach occurred on the west levee of the Upper Jones Tract in the southern region of the Delta in San Joaquin County.

The break occurred approximately 1/4 mile north of the Woodward Island ferry exposing the tract to flooding from Middle River. Governor Arnold Schwarzenegger declared a State of Emergency and Dutra Construction was hired to close the breach. Dutra Construction completed closing the breach on June 30, 2004, approximately

20 days ahead of schedule. The closure occurred several days before an astronomical high tide was due. This high tide would have resulted in a rise of the island water surface elevation to its highest level since the day of the breach. As a result of the closure and completion of the protection efforts, there were no problems due to the high tidal period or winds.

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