Monthly Construction and Environmental Update

West End (SR 79)

  • Construction safety zone in effect along SR79. Speed limit reduced to 45 mph.
  • Culvert slopes west of SR79 remain stabilized with permanent vegetation, Rolled Erosion Control Products (RECP), and wattles installed at culvert walls.
  • Eastern half of culvert construction completed. Fill slopes have been seeded and RECP installed.
  • Traffic has been shifted to east to ride on newly placed asphalt.
  • All lanes will have final asphalt layer completed by early to mid-October.
  • Final traffic stripping will be done two weeks after all asphalt is completed (late-October).
  • Remaining work on west side of SR79 has been completed.
  • New ditch lines on east side of SR79 that drain north and south of new culvert remain stable with RECP and wattles.
  • Three Step Pools near Green Drive along Self Creek are functional. All areas remain stabilized with permanent vegetation and RECP.
  • Sediment Basin slopes remain stabilized with permanent seed and RECP.
  • Perimeter controls remain in place along stream to protect water quality.
  • Sediment Retention Barrier (silt fence and hay bales) remain at Self Creek.
  • Sediment Basins (with pumps and skimmers) on SR 79 functioning properly. Active stormwater treatment applied as necessary to discharge clean water.
  • General items: Site mowing of all permanent vegetation has been completed.
  • Completed ramp slopes are stabilized with permanent seed and RECP. Completed ramp roads are now “capped” with aggregate.
  • North Access Road and cul-de-sac at Old Tennessee Pike Road have been paved.
    “Punch list” work throughout project site remains on-going.

Mainline (Station 2150 to Station 2235 at SR 75)

On-going construction

  • Soil Nail Wall, and Pneumatic Concrete Blanket completed.
  • Finished slopes stabilized with permanent vegetation.
  • Mainline subgrade has been completely “capped” with small aggregate.

Perimeter and other appropriate BMPs being installed as required or needed.

Temporary, permanent, and post-construction BMPs remain in place.

  • Construction entrances remain stabilized with aggregate.
  • Eight permanent and four temporary sedimentation basins with skimmers and baffles are functional. Active stormwater treatment used as necessary to discharge clean water from basins.
  • Eight Level Spreaders associated with permanent sedimentation basins are functional.

East End (SR 75)

  • Construction safety zone in effect along SR75. Speed limit reduced to 45 mph.
  • Final asphalt layer completed. Permanent traffic stripping remains to be completed.
  • New ditch line construction on east side of north bound roadway completed.
  • New ditch slopes have been protected with RECP and hay mulch.
  • Detention Basin– Basin soils remain stabilized with permanent vegetation.
  • Ramp and access road near church have been paved.
  • Site mowing of permanent vegetation has been completed.
  • Guard rail installation along shoulders is completed.

Environmental Status this reporting period:

  • 3 rain Days: 9/2 (0.08”), 9/19 (0.73”), 9/27 (0.09”)
  • Total rainfall for September was approximately 0.9 inches.
  • There were no “qualifying rain events” (greater or equal to 0.75”) and no Non-Compliant conditions during September.