EARTH RETENTION
BNA - Outfall Project ERS
Detroit, MI
2024
- Furnish and install five (5) TERS Pits utilizing steel sheet piling – 40,000 SFT:
• ERS Pit 3 – MH-29/30 – 21′ x 75′ x 25′ deep
• ERS Pit 4 – MH-32 – 36′ x 75′ x 25′ deep
• ERS Pit 5 – MH-33 – 26′ x 36′ x 20′ deep
• ERS Pit 6 – MH-34 – 27′ x 15′ x 15′ deep
• ERS Pit 7 – MH 35 – 36′ x 30′ x 20′ deep – soldier piles & lagging.
• Included temporary flumes – two (2) 36″ dia. x 35′ long.
• 12 soldier piles, HP14 bracing, and lagging for collar supports. - TERS included two (2) levels of HP14 waler, 2′ structural concrete mat, corner struts, and bracing.
- TERS design allowed for outfall penetrations in all pits for concrete chambers & sewers.
- Bracing was sequentially removed with the sheeting/solider piles cut-off and abandoned in place.