by Toni Takacs | Oct 15, 2024
Boone County, IN
SR 47 Small Structure Replacement 40.10
The existing 72″ metal pipe arch structure under SR 47 in Boone County was rusting along the invert and was too short for the roadway section, resulting in steep drop-offs within a foot of the travel lanes. HWC designed a replacement structure that provided Level 1 lane and shoulder criteria. The structure ends were placed beyond the obstruction-free zone to improve safety and negate the cost of the guardrail. The project design also included hydraulic design, a Level 1 environmental document, and right-of-way engineering. There were no utilities impacted by this project. The construction cost was $320,000.
by Toni Takacs | Oct 15, 2024
Boone County, IN
SR 47 Small Structure Replacement 36.79
The existing twin metal pipe structure under SR 47 in Boone County was heavily deteriorated and regularly blocked with debris. HWC designed a replacement structure with a single-span box large enough to convey the required flows and debris to reduce maintenance efforts. A practical design approach avoided unnecessary waterway impacts that would have triggered mitigation and cost. The project design included completion of hydraulics, a Level 3 environmental document, and right-of-way engineering. Utility impacts and associated right-of-way needs were minimized by adjusting the overhead utility vertically to provide adequate working room under it for OSHA requirements. This minimized both the utility’s costs and INDOT’s. The construction cost was $325,000.
by Toni Takacs | Oct 15, 2024
Indianapolis, IN
Emerson Avenue Bridge Replacement over Bean Creek
HWC provided design services for the Emerson Avenue over Bean Creek Bridge Superstructure Replacement project (Bridge #3306F) for DPW using federal funding.
The project included the replacement of the existing superstructure for the single-span bridge. The foundations were repaired and modified to accept the new superstructure using semi-integral details. Compliant sidewalks were added to the bridge as well. The channel under the bridge had migrated to flow along the south abutment, so it was reshaped under the bridge and armored with riprap. The retaining wall that was near failure in the southeast corner was removed and the area was graded for drainage and armored with riprap. Tree plantings were included for Flora Permit conditions. The approaching roadway was milled and overlaid. Coordination with IndyGo was required to adjust a bus stop that was at the end of the project limits. This project also included right-of-way acquisition, utility coordination, and environmental services.
The project is scheduled for 2022 construction at an estimated cost of $850,000.
by Toni Takacs | Oct 15, 2024
Vigo County, IN
Bridge #322
Vigo County’s bridge 322 was built in 1965 on 13th Street as a 132’ long, two-span adjacent prestressed concrete beam bridge with a 62-degree skew over Lost Creek. It was identified as a Non-Select historic bridge because of its significant skew. HWC’s innovative approach during the Historic Bridge Alternatives Analysis (HBAA) found that replacing the superstructure with steel beams was the most feasible and prudent alternative (B2). All alternatives were investigated for the HBAA as the change from a concrete to steel superstructure was viewed as demolition by the historic consulting parties. The bridge was marketed for reuse in accordance to INDOT standards. A scour analysis, foundation repairs, drainage design, intersection design, and utility coordination were included in the project.
by Toni Takacs | Feb 15, 2024
Brown County, IN
SR 135 over Strahl Creek Bridge Rehabilitation
HWC is providing road and bridge design for this bridge rehabilitation project. The existing bridge is a three-span continuous concrete slab bridge that is in horizontal and vertical curves along SR 135 in Brown County. The structure is deteriorated, hydraulically deficient, and has scour problems. The main scope of work is a superstructure replacement with roadway improvements to tie back into the existing superelevated roadway and safety improvements to upgrade the existing guardrail. This project will also evaluate the potential of adding a fourth span to the bridge to provide the necessary hydraulic capacity. The maintenance of traffic will utilize temporary portable signals for phased construction.
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