I-90 & IL 173 Interchange
Machesney Park, IL
Chastain supplied Phase III construction engineering services for a new full access, four-ramp interchange on new alignments. The construction included ramp pavements, embankments, reconstruction of two bridges, new toll plazas, retaining walls and highway lighting.
The new $19.2 million construction included:
- New full access, four-ramp interchange on new alignment.
- New ramp pavements, embankments, reconstruction of two bridges.
- New toll plazas.
- Retaining walls.
- Highway lighting.
- Prepared all documentation required by IDOT.
- Provided Level I and II Bituminous Concrete material testing, asphalt plant inspection.