Birmingham Northern Beltline - Better Beltline









Monthly Construction & Environmental Project Updates

July 2016

West End (SR 79)

  • 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.
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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.

East End (SR 75)

  • Construction safety zone in effect along SR75. Speed limit reduced to 45 mph.
  • Asphalt paving scheduled to begin August 15, 2016 and should be completed within one week.
  • 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. Perimeter BMPs installed to protect Self Creek.
  • Ramp and access road near church have been paved.
  • Site mowing of permanent vegetation has been completed.
  • Guard rail installation along shoulders is underway, which necessitates temporary lane closures.
  • Temporary lane closures will be in effect periodically as final work items are completed.

Environmental Status this reporting period:

  • 9 Rain Days: 7/5 (0.67”), 7/11 (1.71”), 7/13 (0.16”), 7/15 (2.31”), 7/22 (1.00”), 7/25 (0.38”), 7/26 (0.56”), 7/29 (0.29”), 7/31 (0.72”)
  • 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.

 



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