Construction safety zone in effect along SR79. Speed limit reduced to 45 mph.
Traffic remains re-routed over the completed section of new roadway.
Section of culvert west of SR79 completed (western half of culvert). Slopes remain stabilized with permanent vegetation, Rolled Erosion Control Products (RECP), and wattles installed at culvert walls and slopes.
Eastern half of culvert construction now completed. Remaining northbound roadwork remains to be done. New fill slopes will be seeded and RECP.
Asphalt will be placed on newly completed culvert section after paving on SR75 is completed (last week of August).
Traffic will be shifted to newly paved asphalt while existing roadway is resurfaced and any remaining work on west side of SR79 is completed.
Final traffic stripping will be done after all asphalt is completed (middle to late September).
New ditch lines on east side of SR79 that drain north and south of new culvert remain stable with RECP and wattles.
Some slope and roadwork between remains to be completed between Ramps.
Three Step Pools near Green Drive along Self Creek are functional. All areas remain stabilized with permanent vegetation and RECP.
Sediment Basins 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.
Sedimentation 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 TN Pike have been paved.
“Punch list” work throughout project site has begun.
Mainline (Station 2150 to Station 2235 at SR 75)
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.
Diversion berms, slope drains, and drainage sump excavations have been installed where needed.
Sediment barriers installed at buffers, stream and construction limits.
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.
Total rainfall for July was approximately 7.8 inches.
There were three “qualifying rain events” (greater or equal to 0.75”) during July.
Rainfall on July 15, 2016 caused turbid runoff that was observed prior to sampling. ADEM notified on July 15 of turbid discharge.
Although ALDOT’s Permit does not require water sampling after “qualifying rain events” samples were collected in accordance with ADEM requirements and all sampled discharges met regulatory turbidity limits.