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Bridge 115 on 400 South posted at 17-ton limit after cracks; county weighs federal aid and local funding options
Summary
County highway staff reported structural deck cracks on Bridge 115 (400 South), imposed a 17-ton load limit, and presented two funding/timing options: pursue federal aid (longer timeline with 80% reimbursement) or pay more locally to accelerate construction.
County highway staff told the council that Bridge 115 on 400 South, the structure near the county airport, has developed structural deck cracks in locations highway consultants described as concerning; the bridge will remain open but posted with a 17-ton weight limit.
Staff presented two options for replacement or repair:
- Apply for federal-aid bridge funding (federal assistance covers a portion of construction, with the county paying design, inspection and a local share). Under that path the project would enter the federal pipeline; staff estimated the earliest construction date corresponding to the federal call would be in the 2031 fiscal year using a recent example cost estimate (an estimated $448,325 net for the county after adjustments, per staff's calculation using a similar bridge price and inflation).
- Pay more from local funds for design and construction to accelerate the schedule, which staff estimated could shorten construction timing by roughly one year but require substantially higher local outlay (staff provided a higher estimate of about $829,125 if the county funds more of the work up front).
Staff and council members discussed that posting the bridge at 17 tons reduces legal exposure but does not prevent overweight vehicles from crossing, and that enforcing the weight limit without 24/7 monitoring would be impractical. Council members encouraged staff to pursue federal and state avenues while also considering local funding as a backup; one council member offered to contact state legislative offices to seek letters of support for federal and state funding applications.
Why it matters: The bridge carries local traffic including school buses (within the posted limit) and agricultural and commercial traffic; an extended closure or restrictive limit would affect local movement and could shift truck traffic onto alternate roads.
Next steps: Staff will prepare federal-aid application materials for the November call, will review local funding options and timelines, and the council agreed to ask state legislators for support letters to bolster any federal or state funding applications.
