State: KY
County:
Owner: State
Location: Urban
Spans: Three-span
Beam material: Steel
Max Span Length (ft.): 300
Total Bridge Length (ft.): 700
Construction Equipment Category: Conventional
ABC Construction Equipment: Conventional
State ID Number: 10000027B00032
NBI Number:
Coordinates
Latitude: 37.003334 | Longitude: -84.6149979
Bridge Description
Project Summary:Project Location:
Somerset, in Southern Kentucky
Impact Category:
Tier 1 (within 1 day)
Mobility Impact Time:
ABC: overnight deck replacement over multiple nights with one of two lanes kept open; Conventional: months
Primary Drivers:
reduced traffic impacts due to modular construction; improved site constructability due to lighter deck weight with less dead load on the truss
Dimensions:
700-ft long and 36.3-ft wide three-span continuous deck truss bridge (200 ft – 300 ft – 200 ft)
Average Daily Traffic (at time of construction):
25000
Traffic Management (if constructed conventionally):
Traffic management alternative, if constructed conventionally: extended detour
Existing Bridge Description:
The two-lane bridge is heavily used by vehicular and truck traffic and provides a major north-south road for the area. Its deck was deteriorated and required replacement.
Replacement or New Bridge:
Construction Method:
The exodermic replacement deck consists of a 4.25-inch-thick steel grid with 4-inch-thick precast reinforced concrete composite topping. The plans required that the grid be produced by a member of the Bridge Grid Flooring Manufacturers Association licensed to produce exodermic bridge decks. The steel grid was galvanized in accordance with ASTM A123, and the steel reinforcement was epoxy coated. The concrete was cast on the steel grid and fully cured prior to placement of the grid deck.The Kentucky Transportation Cabinet opted to replace the existing 33.2-ft wide bridge deck during nighttime hours, keeping both lanes open during the day and one lane open at night. Traffic was routed to one lane at 6:00 pm and opened back to both lanes at 6:00 am. The slab between floor beams (spaced at 25 ft) was removed and replaced with the full-depth deck panels. Using high-early-strength concrete allowed the joints between deck panels to be poured and opened to traffic the next morning. Precast New Jersey barrier railing was attached, and a latex-modified concrete overlay was placed.
Stakeholder Feedback:
High Performance Material:
Project Planning
Decision Making Tools:Site Procurement:
Project Delivery: Design-Bid-Build
Contracting:
Geotechnical Solutions
Foundations & Walls:Rapid Embankment:
Structural Solutions
Prefabricated Bridge Elements: Exodermic DeckPrefabricated Bridge Systems:
Miscellaneous Prefabricated: CIP reinforced concrete closure joints; Prefabricated railing; Latex-modified overlay
Costs & Funding
Costs:Not available.
Funding Source:
Other
Incentive Program:
Additional Information
Downloadable Resources
Contract Plans: View KY-US27-Contract-Plans.pdf
Bid Tabs:
Construction Schedule:
Other Related Information:
Summary Sheet:
111018-ABC_Existing_KY_1993_US-27-over-Pitman-Creek
Other Related URLs:
Go to:
http://www.fhwa.dot.gov/bridge/prefab/videos.cfm
Kentucky Transportation Cabinet
Contacts
Mark Hite, P.E.
Director, Division of Structural Design
Kentucky Transportation Cabinet
Mark.Hite@ky.gov
502-564-4560