Transportation

Polk County US-64 Rockslide Update For January 19

Tuesday, January 19, 2010 | 03:50 pm
Crews mark locations on the rock slope where they will drive 40 ft. long rock anchors to stabalize the rock
Crews mark locations on the rock slope where they will drive 40 ft. long rock anchors to stabalize the rock
A small secondary rockslide on US 64 at mm 10.9, which is currently closed for clean-up of the November 10,2009 rockslide.
A small secondary rockslide on US 64 at mm 10.9, which is currently closed for clean-up of the November 10,2009 rockslide.
Secondary Slide Occurs at mm 10.9
 
CHATTANOOGA, Tenn. - Construction crews with Charles Blalock & Sons continued working to remove lose rock and other material from the upper western side of the slope. Crews are preparing to install 40 ft. long rock anchors at the site on Wednesday. A geotechnical engineer worked alongside crews to determine bolting locations on the slope face today. The contractor completed hauling the remaining slide debris from the roadway surface on Saturday. Crews then extended the pad for the 275 lb. crawler crane to the east on Sunday and Monday in order to reach the work area on the eastern side of the slope.  The contractor plans to resume drilling Wednesday in preparation for a scheduled blast on the eastern side of the slope on Friday, January 22, 2010.
 

TDOT Receives Emergency Relief Assistance for US 64 Rockslide Clean-up

Friday, January 15, 2010 | 03:34 pm
Federal Highway Administration Approves $3.8 million to fund cleanup effort
 
CHATTANOOGA, Tenn. – The Tennessee Department of Transportation will receive $3.8 million in federal assistance to pay for the clean-up of the massive US 64 rockslide. The Federal Highway Administration notified TDOT on Thursday, January 14, 2010 that the rockslide cleanup effort does qualify for 100% federal reimbursement as long as work is completed within 180 days of incident. On November 10, 2009 a portion of Little Frog Mountain slid onto US 64 completely blocking the major east/west corridor in southeastern Tennessee. TDOT will have the roadway reopened to traffic by March 31, 2010, well ahead of the 180-day provision.
 
“The rockslide has placed a tremendous hardship on the people of Polk County and I have emphasized to TDOT the importance of moving quickly, but without jeopardizing safety, to reopen this roadway,” said Governor Phil Bredesen. “I have had a number of discussions with the Tennessee Emergency Management Agency and TDOT to determine how the state can assist the area. I have also met with Senator Dewayne Bunch and Representative Eric Watson, and I appreciate their continued efforts to find relief for those affected by this slide. With their help, we've received this approval from the federal government, which will help expedite the clean up."
 

Polk County US-64 Rockslide Update For January 15

Friday, January 15, 2010 | 12:32 pm
With 5,500 tons of material removed the contractor now has more room to operate
With 5,500 tons of material removed the contractor now has more room to operate
Mini hoe ram performs scaling operations
Mini hoe ram performs scaling operations
Hauling and Scaling Operations Continue
 
CHATTANOOGA, Tenn. - Construction crews with Charles Blalock & Sons continued work on the site January 14 & 15, breaking up large boulders using a hydraulic hoe ram while a track hoe loaded the debris onto trucks for off-site hauling. Crews continued hand scaling on the east side of the slope while a mini-hoe ram performed scaling operations high up on the western side of the slope utilizing the 275 ton crane and platform.  To date the contractor has removed more than 5500 tons of debris from the roadway surface which has allowed the first unobstructed movement of machines and personnel from the east to the west side of the main slide since the slide occurred.
 

Polk County US-64 Rockslide Update For January 13

Wednesday, January 13, 2010 | 03:47 pm
Loading and hauling away debris from the slide site
Loading and hauling away debris from the slide site
Loading, hauling debris from the slide site
Loading, hauling debris from the slide site
Hauling Operations Continue
 
CHATTANOOGA, Tenn. - Construction crews with Charles Blalock and Sons hauled off 1540 tons of slide debris from the project on Tuesday and another 1100 tons today as workers continued hand scaling the eastern side of the slope to remove loose boulders and debris.  Hauling and scaling operations will continue throughout the remainder of the week as drilling crews prepare to begin operations on the eastern side of the slope.
 
TDOT maintenance crews continued their work along the west side of the US64 Corridor removing rock overhangs, improving shoulders and clearing debris while the road is closed.
 

Polk County US-64 Rockslide Update For January 11

Monday, January 11, 2010 | 04:24 pm
Hauling Preparations and Blasting Operations Continue
 
CHATTANOOGA, Tenn. - Workers with Charles Blalock & Sons worked throughout the weekend breaking up large boulders on the surface of the roadway in preparation for hauling operations. The contractor also completed the construction of a temporary construction access road that will allow the passage of construction equipment and haul trucks from one side of the slide to the other. Scaling operations were suspended over the weekend due to the icy conditions on the face of the slope.
 

Polk County US-64 Rockslide Update For January 8

Friday, January 08, 2010 | 03:54 pm
Crews work to break up large boulders at the base of the slide.
Crews work to break up large boulders at the base of the slide.
Workers use tools to remove loose rock from the side of the mountain.
Workers use tools to remove loose rock from the side of the mountain.
Rock Breaking, Scaling and Drilling Operations Continue
 
CHATTANOOGA, Tenn. - Construction crews continued drilling on the western side of the slide area in preparation for blasting scheduled to take place next week, weather permitting.  Workers continued scaling operations on the eastern side of the slope as heavy equipment worked to break up large boulders on the roadway in order to resume hauling material from the site Saturday.  Subcontractor Hayward Baker completed the first test rock-anchor installation and is expected to begin full scale bolting on the west side of the slope within the next 5 -7 days as drilling and blasting operations move east.
 

TDOT Region One Salt and Salt Brine Totals

Friday, January 08, 2010 | 03:35 pm
KNOXVILLE, Tenn. — Tennessee Department of Transportation maintenance crews have used approximately 8,453 tons of granular salt and 90,850 gallons of salt brine since Thursday morning (Thursday, January 7, 2010) to make East Tennessee highways and interstates safe for motorists during the most recent snowfall and cold temperatures. Crews will work overnight tonight watching for any trouble areas and treating roads and bridges with granular salt where necessary.

TDOT Expects U.S. 64 Rockslide Clean-up to be Completed by End of March

Friday, January 08, 2010 | 01:23 pm
Crews Must Stabilize Eastern Slope Material Near TVA Dam Using Small Blasts and Rock Anchors
 
NASHVILLE – Officials with the Tennessee Department of Transportation announced today that work to clear debris from a massive rockslide along U.S. 64 in Polk County will be completed by March 31, 2010. The rockslide, which occurred on November 10, 2009, buried a portion of U.S. 64 in Polk County under thousands of tons of debris. A $2.1 million emergency contract was awarded to Charles Blalock & Sons of Sevierville, Tennessee in mid-November.  At that time TDOT estimated clean-up would take at least eight weeks. After several weeks of work at the site, crews have successfully removed approximately 6,000 cubic yards of debris and have stabilized the portion of Little Frog Mountain located immediately west of the slide. Crews must now work to stabilize the area immediately east of the slide, which is complicated by the presence of a TVA Dam directly beneath the unstable rock shelf.
 

Multiple Agencies Take Action to Thwart Invasive Plants

Thursday, January 07, 2010 | 11:25 am
Tennessee is joining other states to eradicate Cogongrass, an invasive plant in the Southeast
Tennessee is joining other states to eradicate Cogongrass, an invasive plant in the Southeast
NASHVILLE A consortium of state and federal agencies, along with several private organizations in Tennessee, have signed a Memorandum of Understanding as part of an ongoing effort to safeguard the state’s resources from the potential impact of the most threatening non-native invasive plants. 
 
The MOU establishes a clear path for a strategic plan to be developed, pooling resources to prevent these species from getting a foothold in Tennessee. In addition, the MOU outlines the provision for a public information point source and a citizen reporting system if these species are detected. 

Polk County US-64 Rockslide Update For January 6

Wednesday, January 06, 2010 | 04:07 pm
Crew drilling to prepare for blasting.
Crew drilling to prepare for blasting.
Rock Drilling, Bolting and Blasting Continue
 
CHATTANOOGA, Tenn. - Construction crews with Charles Blalock & Sons continued drilling the large boulders located on the surface of US 64 under the main slide area on Tuesday while workers hand scaled loose rock and debris from the eastern side of the slope.  Today Dyno Nobel set off a series of blasts to break up the boulders on the road surface so that the tracked hoe-ram can further process the debris into a size that can be handled and loaded into dump trucks to haul off of the site.  Sub-contractor Hayward Baker worked on the west side of the slide area to perform test bolting operations.  The test bolts will be installed and tensioned until they fail in order for a permanent bolting plan can be developed.  Rock bolts are used to tension layers of rock together to prevent future slides from occurring in a given area.