This project included the substantial repair and rehabilitation of Lone Pine Bridge deck, wing walls and wing wall facades and safety improvements to the bridge barrier railings. The Lone Pine Bridge sits at the intersection of Lone Pine Road and Cranbrook Road; considered the historical crossroads of the City. Maintaining the historical significance of the area played a major role in the project scoping, design and construction. The bridge deck was removed utilizing hydro-demolition techniques over the existing post-tensioned bridge box beams. Once exposed, field changes were necessary to protect against the accelerated deterioration of the grout between beams leading to swift evaluation and remedy by the Contractor and Engineer to avoid a structural failure. Low pressure injections and hand rehabilitation methods were utilized to repair the existing wing walls, correct the crumbling facades and limit the impacts to the remainder of the bridge structure. Existing field stone walls were removed within the crash potential zone of the intersection and replaced with a modified FHWA bridge railing that utilized a reinforced concrete core-wall, encapsulated with salvaged, cleaned and re-used field stone from the existing walls. The completed bridge provided a setting that blends perfectly into the existing aesthetic features of the area while meeting all current loading and traffic safety requirements.
HRC responsibilities included:
- Perform a detailed site investigation
- Topographical Survey
- ROW/Easement
- MDEQ Permit Application
- Utility Coordination
- Bridge Rehabilitation Design
- Prepare project plans, specifications and construction cost estimates
- Contract Administration
- Construction Engineering Support and Construction Observation
- Materials Testing
